EFI W2 Tunnel Ram wrapping up
#2453435
02/18/18 01:04 PM
02/18/18 01:04 PM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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Tulsa OK
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I just about have this thing wrapped up. I fired it up and ran it for a few seconds yesterday just to make sure all was well before I filled it with water. I bought the wrong throttle cable and I haven't bought an air filter setup yet so I won't drive it until next weekend, then onto the track(hopefully) on the 3rd.
Previous best with the stock hood and a single throttle body was a 10.83@124@3600lbs. I am hoping for a hat trick of increases(i know lol) tunnel ram, fresh air(no hood), less weight(no hood).
Last edited by Bad340fish; 02/18/18 01:06 PM.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453488
02/18/18 03:15 PM
02/18/18 03:15 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
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Washington
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Why the spacers under the throttle bodies and who's DIS are you using???
Looks very good!
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453498
02/18/18 03:37 PM
02/18/18 03:37 PM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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I used the spacers to turn the throttle bodies so I could use inline linkage. The fuel rails kind of wipe out the chance of using the bel crank style linkage like a sideways mount would require. So I used the 4500 top for the manifold and some 4150 to 4500 spacers so I could turn the throttle bodies. I don't like it but for now it is what works.
The Coils are run by the Megasquirt 3 Fuel Injection
Last edited by Bad340fish; 02/18/18 05:33 PM.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453535
02/18/18 04:50 PM
02/18/18 04:50 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I used the spacers to turn the throttle bodies so I could use inline linkage. The fuel rails kind of wipe out the chance of using the bel crank style linkage like a sideways mount would require. So I used the 4500 top for the manifold and some 4150 to 4500 spacers so I could turn the throttle bodies. I don't like it but for now it is what works.
The Coils are run by the Megasquirt Fuel Injections Thanks.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453642
02/18/18 09:52 PM
02/18/18 09:52 PM
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Joined: Dec 2003
Posts: 22,695 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,695
Bitopia
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Looks nice.
I have a similar SB EFI TR setup I'm also wrapping up. Two questions, it looks like your fuel enters in the rear on one rail and returns on the other? I set-up mine to enter on rear, and returns on front, on opposite corner, just seemed best for fuel temp and any pressure drop, that also means I connect both rails together, front and rear.
Second, I also have a upward curved crossover in front, I wanted to trap a pressurized air pocket to dampen any injector fuel pulsing. Not sure it indeed will trap an air pocket. Was this also your intention?
Were did you located your air temp sensor?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453693
02/18/18 11:35 PM
02/18/18 11:35 PM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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I run a holley regulator and that is the suggested plumbing they included in the manual. The regulator has two returns and I have considered changing it to where it feeds each rail individually but I wasn't ready to spend anymore on the project. I had planned on going that route when I made the intake change but I had to spend $200 in fittings just to be able to use the lines I had from my old intake that was an expense I didn't plan on.
There is no reason for the curved crossover other than making sure I had clearance for my radiator line(closer than it looks in the picture). Also when I try and make an AN line to exact length it usually comes up a little short once it is all assembled, the curve gave some room for error.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2453852
02/19/18 12:08 PM
02/19/18 12:08 PM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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Very cool! keep us posted with new ETs
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2460703
03/04/18 01:44 AM
03/04/18 01:44 AM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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After getting signed up for Drag Week 2018 I headed to the track.
It was a busy day and I only got two passes in but it ran a new best right off.
60 1.495 previously a 1.516 660 6.77 from 6.87 1/8th MPH 100.4 from 99.8 1/4 10.71 from 10.833 No improvement in MPH.
The air wasn't quite as good as some of the previous best and it is out of gear. Its best MPH was set with some bias ply slicks and it hasn't touched that since I went to a radial. I broke my 3.91 gears so I have been running some 4.56s and it is crossing at 7300 and it is pretty much tapped at that point. I have a Dana with 4.10s in progress.
I have to give some props to Mickey Thompson. I got there late in the day and the track didn't look good and there was lots of street tires on it. The Pro Bracket radials dead hooked on both passes.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2460775
03/04/18 10:41 AM
03/04/18 10:41 AM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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I log driveshaft speed so I can confirm-zero slip.
I ran them last year also, only had issues on one occasion on a marginal track. I have learned a little more about shock setup and I think I can overcome that now. They are wearing very well also, I have a good amount of passes and I have been lazy and left them on for street duty a little bit also.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2461112
03/04/18 08:36 PM
03/04/18 08:36 PM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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Good shot from the track photog.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2461230
03/04/18 11:59 PM
03/04/18 11:59 PM
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Joined: Jan 2003
Posts: 11,705 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,705
Portage,michigan
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With the right gear it WILL Mph better on the radials than the bias tires. Assuming hook. Every smallblock i have swapped to radials has been quicker, faster and better 60 foot. Its an upgrade not running flat tires down a track
Last edited by B3422W5; 03/05/18 12:01 AM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: EFI W2 Tunnel Ram wrapping up
[Re: sam64]
#2461255
03/05/18 12:28 AM
03/05/18 12:28 AM
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Joined: Jan 2003
Posts: 8,017 Tulsa OK
Bad340fish
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With the right gear it WILL Mph better on the radials than the bias tires. Assuming hook. Every smallblock i have swapped to radials has been quicker, faster and better 60 foot. Its an upgrade not running flat tires down a track I don't have any doubt there, I have always run an ET street radial in a smaller size. When I swapped these 4.56s in I was given some 28" Bias to try and they worked great and it ran good MPH. The first pass I made with the Pro-Bracket radials was new best all the way down except for MPH. that is about as square of a leave you could ask for!Good job,I may have to quiz you on shock settings for my car since I put cal-tracs on it. Sam don't know much but I do know there is a good thread on yellow bullet. http://www.yellowbullet.com/forum/showthread.php?t=288916 between that and some of the Knowledge the late great Monte Smith shared with us here I think I have a general idea of what to do.
68 Barracuda Formula S 340
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Re: EFI W2 Tunnel Ram wrapping up
[Re: Bad340fish]
#2461264
03/05/18 12:47 AM
03/05/18 12:47 AM
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Joined: May 2015
Posts: 1,134 Lost in Time
Iowan
super stock
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super stock
Joined: May 2015
Posts: 1,134
Lost in Time
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That's a good read on YB , thanks for posting.
Have a great day Iowan
"obsolete is neat"
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