Tunnel ram tuning MSD 6AL and MSD distributor, EFI timing The best street set up I ever saw or tuned was a Weiand tunnel ram tri power progressive set up with Rochesters! Every once and a while you see the plenum tops at swap meets, I do not know if they are still offered at Weiand or not! it was easy to tune the center carb for idling and cruising, the outer carbs had no power valves or idle circuit they just needed Jetting! In the latest issue of car craft there is an article about tuning a tunnel ram, they say a lot of the same things you guys have. Current setup is a 10. That made sure that all my idle tuning was being made by the front primaries. 5 power valve. 51 on the final pass of the day 111mph91 octane gas flat top cast pistons. Combining the years of experience with tunnel ram and dual carburetor applications, Quick Fuel has developed a matched carburetor pair based on the 450 Slayer series for your tunnel ram application. With the combo you have,I would run a stret type tunnel ram,with no porting,and run the smallest carbs you can find. 39, 9. Hi. The tunnel ram is fine, and I would use the two 1050 dommies. 450 lift,218@. Especially with a thumpr On a 69 Camaro I once had,I went from a single plane 1 carb intake with a 3310 vac. One, the plenum may still be too small for the engine it's on. A gasket or silicone seal must be used on the bottom of the injector. Tunnel Tuning out a flat spot on my tunnel ram fit I had a very large bog off the line that was killing my 60' times which have dropped from a best of 1. 00. 800 lift vs a sheet metal tunnel ram tuned to the 4th wave for a street car. After some extensive tuning this set up worked great. The heads were ran with the stock valves 1. Ive run several different tunnel ram combos (mostly on 454-540 BBC engines ) but also on a 396 BBC and once you get good at reading plugs and adjusting carbs youll do fine, Ive usually seen guys go crazy when they try Tunnel ram tuning anybody? Discussion in 'The Hokey Ass Message Board' started by TOM O'CONNELL, May 1, 2012. 5 inches of water. To add to the expected problems it isn't currently equiped with a vacuum advance dissy although I have managed to get him to add a MSD 6AL-2 and Blaster SS coil to the package. I have my adv all in by 2000-2100 and still have 18 deg A couple years ago I coached a pal who was tuning a pair of 1850s on a nearly stock 318 Mopar with a genuine Mopar tunnel ram and he was road testing with and without WOT tuning you need to start plenty rich and tune towards lean best power by 1/4 mi mph while noteing AFR and plug colour between cylinders. It's at least even or better. 62deuce Discussion starter. Save Share Reply Drives nice after some tuning but I had no luck with 450's,which those 550's are based on,in both tunnel ram/low rise set ups and 2X750VS made a seat of the pants difference in power compared to the 600's on my 400 I am trying to find some tuning help regarding a 454 LS7 XCH. 0 CR 540 making in the 700-800 hp range. All this spayed main cap for a stock block can be over rated and costly. Koehler Enderle tunnel ram mechanical fuel injection. vacuum gauge reads at least 3" at idle in gear it moves between 3" and 4. Same thing happens with the TR.  So I’m looking for smaller. So if some one could walk me thru a procdure for tuning these two buggers it would be great! Thanks! It's not worse anywhere. My air fuel ratio is pretty dn close. Sure, a Pro Stock sheetmetal tunnel ram with twin 1050cfm Dominators on a What is a Tunnel Ram!? A tunnel ram is a high-performance intake manifold designed to straighten the path of the fuel/air mix - speeding the flow to the combustion chamber. 006 butterfly 30% leak down. HATCARB DUAL 4150 Adapter For Enderle Injector Hat. Also, keep in mind, the cfm measurement of 4 bbl carbs is at 1. Lots of cam and a 3500 stall. That’s pretty much it - nothing high tech about it. dbmx66 Discussion starter. To gain "tunability" "adjustability" and performance convert, upgrade the 2 carbs to 750HP carb status using the Holley or Proform 750HP style carb body kit. Member. So thanks in advance to the members who are able to chime in. Don't make more out of this than I'm saying. ) However, it is much more complicated than your average carb tuning. I was running a QFT 1050 2 circuit dominator and in my quest to go faster i installed a weiand tunnel ram with 2 brand new holley 750 track warrior carbs. Filters. Steve? Save Share The engine must be fully warmed up to evaluate tuning changes. If you have a tunnel ram with a modest size plenum and two modest size carburetors it is actually more Re: Tuning carbs on Tunnel Ram Post by jmarkaudio » Sun Sep 20, 2020 2:50 pm 1 to 1 is ideal, it just makes the throttle opening more sensitive unless you work to make the linkage pulling the carbs progressive. secondary carb to an edelbrock Pro Ram II tunnelram with 2 600 cfm dual feed double pumpers. On the very first pull with no additional tuning the manifold picked up over 20 hp all of the way through our rev range from 3000-6500 rpm over our next-best piece. ( shooter and cam). I do, however feel it's a waste of time to use one for performance if you don't intend to twist it over 6500 RPM. no high speed. I also posted this in the street rodder section, but I hang out here most of the time and figure you guys may have some insight on sorting the t-ram out. easy access Tunnel Ram Tuning with 450 holleys. I'm tuning a Edelbrock street ram with 2 600 Holley vac carbs for a friend. The motor is a stock 350 with a crane 274H06 (. 1 2. Ran across this thread in my TBucket forum where this guy was trying with the help of several knowledgeable people to tune his Weiand Tunnel Ram. This is a mild 383sbc make 10" of vacuum in gear. TR1YX with dual 4 top. That does not mean it has to be loud. Extending the runners into the floor of the plenum is not a good idea. It is like a hot girl in Re: tunnel ram tuning Post by Alaskaracer » Sat Jan 14, 2023 11:49 pm JC565Ford wrote: ↑ Sat Jan 14, 2023 7:51 pm Well, isn't that what the internet is for? I was thinking it would be cool (and maybe get a little more top end power ) to run a duel quad tunnel ram on my 532" with my turbo, one carb hat to each carb coming up from the side of the intake. Filters . Also, based on the total cost of the tunnel ram, carbs, linkage, I think I'd stick with a single carb and victor. 110 main return pill. said the same thing that the 2-circuit would work better on the single carb,said he could convert it to a 2-circuit at his shop,or he would sell me the parts and I could do it. SHARE POST #73. From my experience, . 050. the heads were 78 nova 305 2v heads with 1. Anyway I have a weiand tunnel ram kicking around as well and my father inlaw would like to try to run it on my motor. I want to run dual Dry Throttle Bodies on a Tunnel Ram. eldelbrock tunnel ram. 550 lift solid Ok, Ive got a few questions about tuning a tunnel ram. 8L Vortec 66' Buick Skylark GS I had used several tunnel ram/ carb intakes with good results, but eventually I swapped to CROWER mechanical fuel injection, on my BBC engine, it was an interesting Traditionally the tunnel ram setup uses 600 CFM carbs like the ones you have. The engine is stock with a solid lifter cam. You can see that the tunnel ram torque is up throughout the A tunnel ram intake manifold provides the highest horsepower potential of any manifold because the runners have a straight shot from the carburetor throttle bores the cylinder Oh baby, this would look cool on your car! Complete street tunnel ram kit with Edelbrock manifold. Computer Tuning. The hi-speed should be thought of as a fine tuning device. My motor is a 355 11:1 comp. Does anyone know if there is a significant drop in HP running a single carb tunnel ram vs a dual carb ram. LT1 solid lifter cam with ported camel hump heads. . 5 power valves. 8 pound feet of torque, four hundred and 6-five point three horsepower but that doesn't matter. 5 forget about how the carb is jetted for a single four application because a small displacement tunnel ram engine has very low air speed/pressure drop and any thing you can do to help the air stream pick up the fuel the motor Taller, single-plane manifolds seek to emulate the superior flow paths of tunnel ram intakes. Peak power is 7000 rpm with the Victor ram. Includes two 500 cfm manual choke Edelbrock carburetors, gasser style scoop and linkage. Re: tunnel ram tuning Post by frnkeore » Mon Jan 16, 2023 6:00 pm Maybe one reason that the 1050 and TR intakes, became popular, is that the 8896 was made for TR's. Universal Holley 4-Barrel Carburetor; I’ve tried a 600 cut, way too big, tried a 500 com and had a hard time tuning it, ran rich or after jet change was a dog. If you are going to really spin it hard all the time, the tunnel ram would be a better choice. Top Fuel. Anyway The intermediate on the 3-circuit is suppose to work with a trans brake and or tunnel ram. adapt the 2 Tuning for driveability is the issue and requires some work. look cool and help with torque. We had both styles of manifolds on display at the Winter Tech If you are going the Holley double pumper carb route with the Tunnel Ram any two 650-700-750 DP holleys are good as donor carbs . When you also a good tune with ignition and carbs will help. What ever specific relevant tuning tips is all good. 67 camaro pumpgas 420 - 641hp BretBauerHRcam 1. I'm no TR expert, but I have never seen good results on the street with that type of carb set-up, or with an otb tunnel ram manifold. ran 9. I purchased the car from someone who installed the tunnel ram and two Holley 1850c 600 cfm carbs and did not do any changes to the carbs. My Falcon tuning 355 with tunnel ram. Or something like them. What are the challanges in tuning a 2 carb tunnel ram setup for a 347 SBF? I know there are twice as much to work with. 043" piston to head and bowl ported 305 2 barrel heads with a TR1YX tunnel ram 2 600 edelbrock performer carbs. be/YaVu8FiUhLQHow to Check PTV Clearance - https://youtu. 018" piece of wire in Pro Stock and Pro Mod drag racing engines achieve VE percentages as high as 125 percent due to their narrow power band and the exceptional high speed efficiency ENDERLE HAT INJ TUNING HELP. The main bypass pill is the primary control of the overall fuel mixture. Well built carbs set up properly for a tunnel ram or at least your carbs tuned and you'll have the looks and performance to go with it as well as those other pesky things like initial timing, curve and total. I didn't realize this is what we were talking about here. 1132 posts · Joined 2012 Add to quote; Only show this user #1 · Oct 27, 2013. But they also make killer power and everyone that watches any form of racing knows that when allowed a lot of folks use them. 72" intake valves. I also ran a tall single top tunnel ram on a ported 351 cleveland and it really ran good. If you could fin a pair of those little 390cfm carbs,they would do well. 11's and light weight . Never had any troubles, cold weather drivability was BETTER with the tunnel ram which flies against the face of wisdom I suppose. 2K views 7 replies 5 participants last post by L89 Oct 28, 2013. Looking at images on I am having some trouble tuning my tunnel ram setup and was wondering if any of you had some input? The biggest problem/ symptom is when I give it anything over 1/3 throttle from idle it stumbles like crazy, and if i dont take my foot out of it, itll stall out. installed 2 600 edelbrocks on that 355" and installed a 280h comp cam. 50 size. . 8k - 7. 78 Malibu, sniper, 9" with 3:70's. Going to sell the nitrous stuff as I don’t need it but I’m curious if I should Share your videos with friends, family, and the world It's another battle of old-school cool here on Engine Masters, where the guys bolt tunnel-ram and cross-ram setups to the 383 Chevy and stagger jets until th In my experience with tunnel rams on boats the performance increase at low speeds is actually quite impressive. Help! Jump to Latest 21 - 24 of 24 Posts. But, when you double them up on a dual quad or Tunnel Tunnel Ram tuning for the street?? Post by ClassicComp » Wed Jun 14, 2006 3:30 am. d. Hello I wanted to put a tunnel ram on a stock 440, I wouldent mind putting a bigger cam in it but I have heard that some cams work better than others with tunnel rams, I Years back I had a 355 cid sbc in my coupe . It has a 2500 stall and 4. This is assuming they haven't been monkeyed with. What many folks don’t realize is that many of the modern EFI tall intake manifolds, like Holley’s Hi-Ram, are tunnel ram intakes with an EFI top on them. It ran 12. I have ran tunnel rams and tuned for others on the street. > Individual port tuning to I have been looking around on the internet and have not seen a tunnel ram application using EFI where the throttle bodies are mounted sideways. Specifically I'm looking at the Weind Hi-ram for a sbc. I don't have the graphs in front of me but it was over a 100 point bolt-on in Engine Master's score. air door counter weight changes , emulsion tube changes etc etc. Discussion in 'The Hokey Ass Message Board' started by ratrodnut, Nov 27, 2010. He reckons they've tried different sqirters, pump cams, and even powervalves to try make it take notice straight away. The recommendations for the tunnel ram will be based on the CFM on top of it. You might make a little more power with a tunnel ram but you'd probably find the single carb combo on a ported victor alot easier to tune and get consistant. I have completed my small block powered t-bucket and have been driving it. The deficiency is the runners go back to a side into the port instead of the tunnel ram’s down I noticed the tunnel ram version has a leaner metering jet/rod combination for the power side, but is exactly the same calibration at idle as a single four version. marc1166. I have the primarys The most important design factor in tunnel ram runner design is the amount of taper from the plenum to the cylinder head port. 440 282 Solid cam 410 gears 4 spd. As these carbs have jets in the front metering blocks and specific size fuel holes in the rear metering "plates", do the jets and metering plates need to be replaced in tandom to I just put a weiand street tunnel ram with two 450 holley's mechanical secondary carbs on my t-bucket. He changed from a way small single plane intake with an 1150 dominator on it, to an A tunnel ram can work better then a single 4 barrel even on a mild motor,but you need the right tunnel ram. 46 to 1. Troy Patterson TMPCarbs. Let it breath deep. His comments are below. Posted By: PS Arrow Tunnel ram tuning - 01/23/14 09:02 AM. Stock converter with an automatic to boot. I'm sure the meter would speed up the process some, and for a blown or nitrous car it's probably mandatory. -1 pump. this Today we build a complete tunnel ram setup for the 440 including fuel lines, regulator, linkage and return springs. If your intended RPM range is under this, I would probably stick with a single Any carb setup you choose with take some tuning but it will be worth it in the end ,because you will freaking love the way a tunnel ram pulls at 3000 to 6000 ,especailly with those 4. 401 142mph. I will say this, however. Page 1 of 2 1 2 Next > The things got a tunnel ram tht had 2 600s on it when I got it, mind you this is a mild 350 with just a little bumstick in it. If the motor loads up at idle, the idle adjustment is too rich or the butterflies should be opened more. After some tuning advice for a pair of Holley 0-9776 450 clear tunnel ram carbs. tuning for a tunnel ram. 65. 060 over 454 with roller cam at this point the 600 carbs are set up as follows Re: tunnel ram tuning Post by Alaskaracer » Sat Jan 14, 2023 11:49 pm JC565Ford wrote: ↑ Sat Jan 14, 2023 7:51 pm Well, isn't that what the internet is for? Westech Performance dyno-tests a 383-inch stroker small-block pump-gas engine topped with three two-barrel Rochester carbs on a custom tunnel-ram! 2 600 CFM Holley Carbs set up for tunnel ram applications choke less, high flow needle and seats, high flow power valves, calibrated for tunnel ram use. I have a T Ram project in the works, very simular to Jeff's, using 750 Edelbrocks. Hey gents, I wrote here several times about this exact problem, but I couldnt really start tuning it, as car was breaking on each test run (fuel pump, regulators, brakes, u-joints, cooling) so it took a year to fix all of it. I took a bit of Hot Rodding Know-how thanks to my Uncle Jessie Wood and made a The tunnel ram he has presents two issues. If you’re looking to increase your engine’s horsepower, a tunnel ram can be an effective option. IF you can get fuel distribution right, the longer air flow period will make it run better everywhere. Mercury Kid, Oct 27, 2008. Our final power numbers after the tune up on the Tunnel Ram, 4 74. 51 at 111 mph 3200lbs with driver, TH350 2200 stall speed and . He changed from a way small single plane intake with an 1150 dominator on it, to an I have a 454 BBC running an Edelbrock RPM cam, 9. on either the Pro Ram II -vs- Victor Ram on your 406, it just depends on your Head Flow + Cam + desired RPM Range. But for ease of tuning, one carb is the way to go. 6. A lot of people use the AFB/Edelbrock carbs for street tunnel rams. It's offered with two tops , single or dual. just would like to hear some information about 1850 ( 600 ) holley carbs on a tunnel ram. 8 to comp. Thats enough to walk on any new Corvette. 005 and 27%. 068 hole,6. small-block Chevy V8s operating below 7500 rpm where low-end torque is not a prime factor. Jump to Latest 540 on alky. He bought a different top from Colorado Hotrod Parts and was very happy. 066 hole, rear carb jets #67-. system sent from enderle with . Profile Page. You can try adding a spacer in between the top plate and base to see if it In this episode Unity Motorsports Garage further discusses Carb Tuning on Holley Hi-Ram / Tunnel Ram intakes. Great for engines with The only place these cross rams work is at WOT redline. Tunnel ram fuel injection, Enderle fuel injection, Custom built and flowed for your sportsman application. 456's and a converter that stalled to 2200-2400 it ran 12. 5 turns each and appears to be running rich because it Victor Tunnel Ram Details: The Edelbrock Victor Tunnel Ram is an updated design for modern big-block Chevy engines; Designed exclusively for 468-582 c. So back to the story. You will need When I had my tunnel ram and twin 600 vac secondary Holleys, I made sure the secondaries on both carbs closed all th eway closed so not air could sneak by. 2K ( i know this is the range for a single plane - I just want to try something ) It seems like a single carb setup would be more of a challange for fuel distribution. It's designed for use with 468-582 c. May be a little lean so I may jet up a single jet size front and rear carb. 823 posts · Joined 2005 Add to quote; Only show this user #3 Still need a good tune-up. The internet is full of Holley information, but I can't seem to find much info on dual Edelbrocks on a tunnel ram. I was talking about a cast type with a cast top. what kinda mods did you do to get most hp out of them. The large, single plenum sits directly on top of the runners. 5 cr, 2-1405 carbs on an Edelbrock tunnel ram, with 12* initial timing. If you know how to tune- they can work from the hit on! after reading all the posts on this thread I figured it was time to call the ball HOW TO VIDEO LINKS:How to Gap Piston Rings - https://youtu. Thanks Jeff. Specialty Use Carburettors Holey Tuning Parts - Jets, Springs, etc; Carburettor Rebuild Kits. case : 355" with flat tops . The header tubes are glowing faintly, I have the air idel screws backed out 2. Since the main circuits are flow activated a tunnel ram tuneup keeps mostly stock jetting. have to cut-open + weld back 2- Edelbrock Victor Ram for larger engines. Save Share Reply Quote Like. We improved upon that with tuning. 36 injectors. 5 square-inches at the plenum Holley-Enderle LS Tunnel Ram Enderle Big & Ugly - LS1, L2 , LS3, L92 , LS6 , LS7 , LSX EN-LS-TR-BAU3 $4,950. The tunnel ram he has presents two issues. A tunnel ram has long runners and requires a bit more time for the carbed engine to "WARM UP" correct tuning not wimpy carbs and cams etc. Awesome read. 456 gears 280H cam 230@. im still messing with the tunnel ram set up. okay guys i got a great Unless you know better from dyno testing, or lots of track time and plug reading, it is usually desirable to start with symmetrical metering on a tunnel ram. Obviously I know the 450 are mechanical secondaires vs. MSD 6AL and MSD distributor, EFI timing Tunnel Ram. 26 X 8. When running alcohol with an electronic ignition, The dual plates on a tunnel ram will cause you more trouble than you can fix. I recently installed a Weiand tunnel ram with dual Edelbrock 1406 600 cfm carbs. 1200 rpms it reads pretty much 8" of Further dooming the tunnel ram, blowers not only looked cool, the bear-like power curve they produced made cars feel brutally fast in everyday street driving. Can I use 2 of the Universal 4BBL 1000CFM 4150 Flange Throttle The myths that tunnel rams are "race only" and "kill low end power" are just thatmyths. One example my camaro with a bbc 454 had a dual plane eddy rpm intake and a 750 carb, went to a tunnel ram weiand with two 600 vs holleys and made more torque and hp, then went to two 750 carbs and did even better, then finally a home built 6-71 blower. Period. The main thing is the different runner length and their respective tuning range. Car & Truck Programmers, Modules and Chips; Engine & Fuel Management Systems; Diesel Performance; Engine & Driving Monitors; This Victor Tunnel Ram is a modern updated design to the very successful Victor Ram 2-R Tunnel Ram, which was first released over 35 years ago. 72-1. Also, don't use a vacuum advance, wow, there is a disaster. Huge fan of Grumpy. I cleaned it up, detailed it, bolted it on, setup the Aukai wrote:My question is for a cast tunnel ram that is smaller than optimum (victor ram) BBC 572, EFI, heads flow 449 cfm at . im just looking for advice for tunning my own 600 holleys on my weiand tunnel ram. Yeah. It's an open hood, so it's mainly for looks 🙃 That is probally a street friendly performer rpm intake with a 650ish carb and a good tune. 050,106LSA). standard-deck . Keith Black built the weber lid and sold them for years. Now I have 2 450's with 582 jets in the front and 8. IF you are building the car for the street, this setup will look cool, but will hinder performance do to the flow capibility of the SBC. I found the tunnel ram at a swap meet with both carbs. A pair of 450 tunnel ram carbs ius as big as you can go. Tunnel Ram Tuning with 450 holleys. Mark from Fla. If the response is hesitant, the idle is too lean. The front carburetor is a no choke model calibrated to work with the rear carburetor for the Tunnel ram tuning. People watched their performance and made I'm a believer in the tunnel rams. Ok, Ive got a few questions about tuning a tunnel ram. Ill be the first to admit I dont have much info on it. I have a 396, going from a Team-G manifold to a street ram by Edlebrock. If you have a 572 or larger then maybe the tunnel ram would be better. It is a T bucket. In town, very respectable manners, on the highway or at the Tuning is a bit tougher. The Edelbrock Victor Tunnel Ram is an updated design to the popular Victor Ram 2-R Tunnel Ram, which was first released over 35 years ago. Jump to Latest 5. Notice the NASCAR bathtub intake. Wrong, in an engine with a tunnel-ram layout, both the needle and seat area and the float bowl capacity have doubled! Whereas the single four-barrel car that is most prevalent today, has a much harder task in keeping the fuel bowls full! A Re: Tunnel Ram tuning Post by mopardave » Thu Feb 02, 2023 3:04 pm That is some good info and im thinking about moving the o2 to the pass side and a few inches behind the end of the collector. lg1969 · Premium Member. But with an average drag automatic, the rpm drop favors a broader power band. I never had any luck with tunnel ram 450 cfm carbs, but 600 cfm (1850) carbs work real good for me by restricting the idle circuit. prairiehotrodder. Use something like a dynomax ultra-flow or some other flow through muffler, stay away from the drone masters and wave cancellation types. 79 @ 137. A seemingly large contingent feels that tunnel ram intakes are designed for, and are only good for, high rpm operation, since the runners are very short and pointed straight into the head ports. Online tunnel ram testing shows a torque increase while Hp is about the same over a single four barrel set up. standard-deck Chevrolet V8 engines I suggest two tunnel ram 500 Edelbrocks for ease of tuning and less sensitivity to change, MSD 6 or custom DUI (Performance Dist) if it will fit, full vacuum advance (40-45*) at idle, and a tighter lobe separation angle cam For WEIAND Tunnel Ram Carb Plates HATCARB-ADAPTER-DUAL-4150-WEIAND $435. Recently I had an offer to buy a basically brand new hogans cnc runner tunnel ram which is complete with 2 quick fuel carbs and a nitrous setup for Pennys on the dollar. More good news for tunnel ram users: The new metering blocks are engineered for tuning. Help! Its a 383 sbc with a weiand tunnel ram and the seemingly dreaded 450 holleys (9776) on it. Faster flow means more fuel/oxygen mix rammed into the combustion chamber for a boost in horsepower. 394 and 9. As these carbs have jets in the front metering blocks and specific size fuel holes in the rear Ive run several different tunnel ram combos (mostly on 454-540 BBC engines ) but also on a 396 BBC and once you get good at reading plugs and adjusting Once you get the ign set the carbs will probably run right out of the box. The biggest problem with the 450's was, they are jetted stupid lean. put on manual chokes(don,t need them,3 steps on the gas when cold starts right up,when warmed up no touch on the gas fires up) Pete No ram tuning involved, just inertia. However, you cannot beat a tunnel ram for high speed operation. locked out 36degBTDC timing @ sea level altitude looking for a base line pri jetting/ rod combo, sec jet baseline. engine was a 350 with . Joined: Jun 3, 2010 . He's poured untold money into having experts try to tune out the flat spot when he nails it. This has a lot of coolness factor and can work well with proper tuning. 12. Had 750 carb with 73 jets in the front and a 3. 4 speed tranny 18lbs flywheel My question is can I run dual Holley spread bore 650dp carbs on top of my tr with the proper adapters? easier to I am wanting to install a Holley HP System on a 440 Chrysler with individual injectors in welded bungs. What tunnel ram carbs should I use on my sbc 350 street car with a stick ? The tunnel ram is a "Street Tunnel Ram". (2) 390cfm carbs = 780cfm, can go on almost any mild engine. I heard the Holley 450's have a flat spot and are hard to When installing the injector on the blower or tunnel ram manifold, tighten the bolts evenly to prevent distortion. 383, tunnel ram, mild cam, 2x4 EFI. I am now having an issue with my carbs. I dont have all of the engine yet and dont have it together just trying to learn as much as I can now. Making peak HP around 6. The car idles fine, cruises fine, but when you put the pedal to the floor, it hits about 4,000-4,200 rpm and falls flat and will not gain anymore RPM. I took off the 600s, put on 390s, it runs a lot better but has the dreaded dead I've ran tunnel rams on the streets for years and years and years, I had a 2x4bbl tunnel ram on my daily driven work truck for a couple of years. set-up. Out of the jeff swisher wrote:I built a 78 nova for a buddy sold him my nova intake. Once all these is corrected, the last thing you do is dial in the accelerator pump shooters for correct shot volume and timing. Chris Chevy 377ci 400-450 horsepower 3000-7000rpm range Wieland Hi-ram tunnel ram. Here is a few links on how to tune your tunnel ram setup with 2 carbs. Two 500 eddys on a tunnel ram. This was the intake of choice if you were from the Chrysler camp. Sideways Mount Carbs With Built In Been thinking about going Tunnel Ram on my 406. A lot also depends on the carbs' CFM and just as much depends on proper tuning- both for a tunnel ram AND as a dual-4 bbl. 5 powervalves,purple sec spring,# 28 squirter,30 cc pumps with stock pump cam,timing 10 before tdc. The raised carburetor location offers a straighter shot at the intake port on the cylinder head. And the old Rochester FI. from A tunnel ram can add anywhere from 20 to 75 horsepower to an engine, depending on factors such as engine displacement and tuning. My buddy ran a 427bbc that was pretty much a stock 10:1 oval port engine with a comp 280H and a weiand ram with 2 650DP carbs and that thing was insane. Second, the runners are likely a bit too long and small. Yes you can tune a tunnel ram intake to make both good power and torque, in fact if the parts are correctly matched power from about 3500rpm-8000rpm will match or exceed most other choices, and a good tuner familiar After some tuning advice for a pair of Holley 0-9776 450 clear tunnel ram carbs. You can play wiht this all you want but untill all the othe area are adressed and corrected you The tunnel rams that have longer runners actually work better, giving more low end power. I have a lean hesitation when I floor it then it takes off. sounds like your running it down i have been doing some reading before i get to my tunnel ram project 355 with a cam that barely lets the intake valve close lol not really i dont have specs yet but i believe its a little over . let me say engine is good and strong im just trying to fine tune better. The taper is necessary to insure proper velocity from the manifold into the cylinder ports (although this is over-simplifying the issue). A tunnel ram takes longer to warm up. if i throw a small rev to get it above 2000 and then punch it, its a neck snapper! Vacuum secondary spring tuning is very much a cut-and-try system, but we'd suggest initially replacing the heavy black spring with the purple version. I agree you should use new carbs. tuning a tunnel ram intake | Grumpys Performance Garage Tuning carbs on Tunnel Ram - Speed Talk . The motor is a 582 bbc, solid roller, brodix heads. It's not a traditional tunnel ram, its a sheet metal intake with a special built open plenium. So after I stepped up about 7 jet sizes they really worked well. Tuning out a flat spot on my tunnel The 600 CFM vacuum secondary Holley is one of the most common and street friendly carbs on the market. And finally, with the right plenum volume and the nearly straight runners, pressure wave tuning becomes more effective. Not for the faint of heart! (3500-7500 rpm) Designed for 302-327-350-400 c. Just trying to help a friend out. While I am looking for 'general' tuning help, it's with Edelbrock dual quads. 500 lift one of the issues i have seen most in my research anyways is that you need to tune your engine for more air flow maybe a new cam Brand New Holley 600 CFM Vacuum Secondary Tunnel Ram carburettors quantity. 5:1cr full ported GM heads Isky Z27cam Edelbrock street T ram 2 Edelbrock #1407 750 carbs. A warmed up tunnel rammed 350 hp 305 SBC will run a low 11 sec ET. The Tunnel Ram intake is nearly useless as Bear said and will cause you to have many bad days and nights trying to tune the engine to it. 50-15 M/T slicks. The Tunnel Ram intake manifold was developed for all out racing use, but set up right they can make for a very sweet street runner. Joined: Sep 2, 2007 Posts: 41. They both have a bad rap due to poor tuning and rampant misinformation. Just waiting for the snow to melt. MPG tends to go south also. I have never messed with one before so this is a first for me. 11 gears and weights about 1800 pounds. After 4 pages he was still not satisfied with the response of the engine at low RPM. this is a 11. I'm trying to figure out the power comparison. You guys have given a lot of great advice. on a tunnel ram engine Do yourself a favor, don't try to cover up the stumble with pumps, it'll make it so fat, you'll hate it,and The New Metering Blocks: Engineered for Tuning . My hope is I could run the single carb base and enjoy the look and HP of a tunnel ram without the tuning headaches I hear about so often. ) Do not choke down the exhaust system. 5" thats about 700-850 rpms. Today on Unity Motorsports Garage I dive back into the Basics of setting up a TunnelRam to drive on the Street! I show how to make a tool using a Edelbrock The engine Iam getting has a tunnel ram. Given the size of your engine, this is less of a problem than it would be on, say, a 350 SBC. I know the issues people have are usually tuning. A great choice for inline set ups. I am going to start off with this but will probably change to a regular dual carb manifold. 91 octane SBC Tunnel Ram Fuel Injection Package w/Aces Wildcard ECU The ACES EFI tuning software includes multiple base calibrations to choose from either naturally aspirated or Thinking of adding a single carb tunnel ram intake. I have never seen an aftermarket Tunnel Ram or Cross Ram work well on help!! big block chevy tunnel ram carb tuning. 48' Willys CJ2A resto-mod Jeep 4. As a person who just went through this whatever carbs you choose are going to have to have some tuning. Full throttle = tune for mph, street use = lean it till it gets stupid, then richen back to get driveability. Jump to Latest 6. net TMP Carbs And so it goes. I want to see how much better the Tunnel Ram is than the single four barrel because that's what's important to my life. When talk turns to tunnel ram intake manifolds, often times it seems they are placed in the same magical category as superchargers and individual-runner injection systems. (The plenum is the area under the carburetor. the vac secondaries of the 600's. This tunnel ram is set up with a pair of sbc tunnel ram tuning. The 0-9776 450 CFM mechanical secondary carburetor is designed as a universal performance carburetor for use on tunnel ram applications. adjusted to . Go with a 2 1/8" primary tube into 4" 3" step down collector headers, and a short 3" dual exhaust with dumps. It’s designed for use with 468-582 c. new from enderle. TUNING TIPS. But who really cares about that right? People tend to equate a tunnel ram and twin carbs poking through the hood with big power numbers. 263 posts · Joined 2008 Add to quote; Only show this user #1 · Jun 17, 2008. i. I think most come from the fact that many users suffer from mismatched combinations and improper tuning. A EACH TFS tunnel ram manifold has it strengths and proper applications. enderle hat on tunnel ram. another Intake thats pretty good is the rare Team G Tunnel Ram in Dyno Tests they ranked best to worst 1- Edelbrock Pro Ram II for smaller engines. On a sbc I've made serious numbers with a much smaller cid sbc but always ran 660-center squirters, but never had good results in a heavy street converter equipped car with what appears to be a lazy hyd cam for your combo. Number of Products to Show. Greg . After you're done tuning with motor idling tunnel ram 540 BBC tuning. I don't have all of the dimensions for the Victor. You can try adding a spacer in between the top plate and base to see if it picks up more. But to no avail. Without the engine running, open the throttle to WOT and watch the pumps discharge while you count Mississippi's so you know if you are staying at WOT long enough that the A/F reading is Update on my tunnel ram tune up, 390cfm holley carbs,front carb jets #66-. 2 compression, oh ya it makes more power even with small 4lbs of boost. They were an attemp to make a tunnel ram that fit inside the hood lines. Oh, and tunnel rams are cool. Post Oct 23, 2017 #1 2017-10-23T17:02+00:00. The Cross Rams are the same. Jerry, this boat has won more Grand National championships and set more kilo records than any boat in the history of the sport. My question is the difference between the Holley 450 tunnel ram carbs and a couple plain ol' Holley 600 Vac Secondaries. same car took tunnel ram off and built my own blower from scratch broke even more "rules" car is a blast to drive even with 4lbs of boost on 10. I'm running a pair of 450 Holleys on a Holley Pro Dominator and it's taken some tuning to make it run on the street, but it doesn't seem to require a bunch of tinkering now. 9K views 6 replies 4 participants last post by Bucs01 Jun 19, 2008. Then you can do some fine tuning. Joined May 1, 2008 · 1,453 Posts #21 · Sep 22, 2010 (Edited Tune the carbs with the linkage that connects both carbs together disconnected its crucial that the carb throttle plates open exactly the same a carb balancer is a good tool for this step. The only tunnel ram setup I ran was back in the late 70's (performance parts weren't real good back then) and I ran the new 450 carbs on my new Weiand SBC tunnel ram. The single was easier to tune and more consistent. Chevy's with rectangular port cylinder heads on standard - deck blocks; Features new and improved 7" long runners with close to 5. But, when it DOES come on the pipe and the ram tuning effect starts, hang on. be/blKm2ODrQZ4How to Measure Bearing Clea The guy across the road from me owns an HX premier with a tunnel ram and a pair of 390 holleys. Here's my 355 Team G Super Ram street motor that's been together for 21 years. You mentioned a "race tunnel ram" but didn't specify which one. Oh baby, this would look cool on your car! Complete street tunnel ram kit with Edelbrock manifold. Here's the highlights of Still et/power on the table I’d guess, but thats a tuning and converter issueanyways. TOOLS TUNING DEVICES BOOKS ADDITIVES & LUBRICANTS; Quick Fuel tunnel ram carbs 450 cfm vaccuum secondaries. Holley; 350ci SBC 10. Aside from the standard TUNNEL RAM INJECTOR. 2020 Goodguys A tunnel ram intake has tall, straight intake runners. Do this with main jet changes only. Getting the linkage adjusted right is a pain. This improves performance, but the fixed runner dimensions tune best to a specific engine speed and are not easily modified. qlclh mqhxa jhpho tobhqm pvaednr hhdzl mkycats kewnr xdcaz hiig