355 LT1 Track Progress
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355 LT1 Track Progress I figured I would start a new thread. NOT to brag about anything, but to document the progress the car will be making.
Here are a few shake down passes with a very conservative tune, stock suspension, and very near full weight, and a DA OF 6990ft.
N/A Pass
http://www.youtube.com/watch?v=2uKnZlFVG50
Nitrous (150 shot)
http://www.youtube.com/watch?v=hDFYjNO-_Tw
Video of the 10.79 @ 126-7 pass is coming.
Combo is 355 LT1 Lloyd Elliott ported TrickFlow 21 degree heads. LE ported stock intake, 13.4:1 compression, Nitrous Outlet Plate Kit, Mild Self Built T-56, Mcleod Street Twin clutch, Dana S60 Rear, 4.30 ratio, trutrac.
28x10.50 Hoosier Stiff Wall Full Slick out back.
There is still a LOT planned for the car. Stay tuned for updates!
1.89 60' N/A (does a nasty hop, then bogs)
1.53 60' on the 11.04 pass
Here are a few shake down passes with a very conservative tune, stock suspension, and very near full weight, and a DA OF 6990ft.
N/A Pass
http://www.youtube.com/watch?v=2uKnZlFVG50
Nitrous (150 shot)
http://www.youtube.com/watch?v=hDFYjNO-_Tw
Video of the 10.79 @ 126-7 pass is coming.
Combo is 355 LT1 Lloyd Elliott ported TrickFlow 21 degree heads. LE ported stock intake, 13.4:1 compression, Nitrous Outlet Plate Kit, Mild Self Built T-56, Mcleod Street Twin clutch, Dana S60 Rear, 4.30 ratio, trutrac.
28x10.50 Hoosier Stiff Wall Full Slick out back.
There is still a LOT planned for the car. Stay tuned for updates!
1.89 60' N/A (does a nasty hop, then bogs)
1.53 60' on the 11.04 pass
Last edited by gregrob; Apr 9, 2012 at 01:50 PM.
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copied from yellowbullet
Nitrous gearing, what neeeds to happen here?
Combo is a 355" LT1, Ported 21 degree trickflow heads, stock ported intake, 13.4:1 Compression, E85, T56 6 Speed Manual Trans 4.30 rear gear
232 238 .629 112 LSA Hydraulic Cam
28x10.50 Hoosier Stiffwall
4.30 rear gear
Took it out for some shakedown passes yesterday, and it will hit the tires super hard, pull the wheels, then set down and bog.
It was cutting 1.89 60' times like this N/A.
I started spraying it on a 150 shot (.062 jet through an EFI Plate) and it started to 60 better, but I would run out of gear before the 1000' mark...
It went 1.56 1.53 on the .062 jet, then 1.49 on the .071 jet
The cam loves to pull at 6700+ but I dont know how far I can take it with the valve train thats in there...
Should I regear for the nitrous, swap to solid valve train and spin it up? What gear should I go with if I regear? I eventually want this car to run 9.90's
Should I get suspension before I do any gear swaps or spin it any higher? I plan on full AFCO Suspension from MADMAN.
Heres a video of an N/A launch at 6200 on the 2 step.
http://www.youtube.com/watch?v=jcQc4rK1xiI
Here's a video of an N/A launch at 4800 on the 2 step.
http://www.youtube.com/watch?v=2uKnZlFVG50
It is virtually the same 60ft time for both runs. Upping the 2 step and hitting the tires harder had no effect on 60, just a lot more violent in the first 10ft...
Here is a launch on the 150 jets, 1.53 60ft
http://www.youtube.com/watch?v=hDFYjNO-_Tw
Any help is appreciated.
Nitrous gearing, what neeeds to happen here?
Combo is a 355" LT1, Ported 21 degree trickflow heads, stock ported intake, 13.4:1 Compression, E85, T56 6 Speed Manual Trans 4.30 rear gear
232 238 .629 112 LSA Hydraulic Cam
28x10.50 Hoosier Stiffwall
4.30 rear gear
Took it out for some shakedown passes yesterday, and it will hit the tires super hard, pull the wheels, then set down and bog.
It was cutting 1.89 60' times like this N/A.
I started spraying it on a 150 shot (.062 jet through an EFI Plate) and it started to 60 better, but I would run out of gear before the 1000' mark...
It went 1.56 1.53 on the .062 jet, then 1.49 on the .071 jet
The cam loves to pull at 6700+ but I dont know how far I can take it with the valve train thats in there...
Should I regear for the nitrous, swap to solid valve train and spin it up? What gear should I go with if I regear? I eventually want this car to run 9.90's
Should I get suspension before I do any gear swaps or spin it any higher? I plan on full AFCO Suspension from MADMAN.
Heres a video of an N/A launch at 6200 on the 2 step.
http://www.youtube.com/watch?v=jcQc4rK1xiI
Here's a video of an N/A launch at 4800 on the 2 step.
http://www.youtube.com/watch?v=2uKnZlFVG50
It is virtually the same 60ft time for both runs. Upping the 2 step and hitting the tires harder had no effect on 60, just a lot more violent in the first 10ft...
Here is a launch on the 150 jets, 1.53 60ft
http://www.youtube.com/watch?v=hDFYjNO-_Tw
Any help is appreciated.
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Prep was marginal. The 1.49 on spray is pretty damn good IMO, especially for STOCK suspension. However the N/A 60s are embarrassing lol... Thats the reason for the above post.
Are you shifting at 6700 N/A? I'm asking cause my cam is 232/240 and according to the dyno power drops off at 6400.
Nevermind. You probably have your cam degreed much differently than mine which moves the rpms higher.
Nevermind. You probably have your cam degreed much differently than mine which moves the rpms higher.
Last edited by Rob94hawk; Apr 9, 2012 at 04:01 AM.
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Qa1,Hal or Strange coilovers
Tubular k and a arms
BMR rear swaybar
BMR sfc
BMR tq arm and LCAs if you don't have them already the car should be fine on that cam but a SR would be the bizzz
Tubular k and a arms
BMR rear swaybar
BMR sfc
BMR tq arm and LCAs if you don't have them already the car should be fine on that cam but a SR would be the bizzz
Much like choosing torque converters for an auto car you must set this car up for either N20 or N/A. You really can't have the best of both worlds w/out sacrifice somewhere especially when it comes to gear and tire.
www.f-body.org/gears
www.f-body.org/gears
bog on 6200 launch, no hook at all on 4800 launch? lol did you change shock settings? id set up the rear shock stiffer to get more wheel speed, too much hook for that hard of a dump. tire psi? you'll do alot better with a DA shock out back
You really need suspension man.
You are pissing in the wind trying to set it up to 60' on the stock stuff, when you will have to do all that all over again anyway when you get a real suspension under it...
I would get at least basic suspension parts under it and go from there, before considering a solid roller/valvetrain swap and letting it spin to the PCM limits.
You are pissing in the wind trying to set it up to 60' on the stock stuff, when you will have to do all that all over again anyway when you get a real suspension under it...
I would get at least basic suspension parts under it and go from there, before considering a solid roller/valvetrain swap and letting it spin to the PCM limits.
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14psi in the tires. I agree it really needs suspension and that will be next.
I'm also having cam sync issues and that could be my high RPM problem. It really shouldn't hit the "limiter" where it did.
The stock tach is terribly inaccurate and I didn't have black box logging setup for efilive so I didn't log them. Its working now though and I will go make some test hits later and see where it falls off.
I'm also having cam sync issues and that could be my high RPM problem. It really shouldn't hit the "limiter" where it did.
The stock tach is terribly inaccurate and I didn't have black box logging setup for efilive so I didn't log them. Its working now though and I will go make some test hits later and see where it falls off.
Much like choosing torque converters for an auto car you must set this car up for either N20 or N/A. You really can't have the best of both worlds w/out sacrifice somewhere especially when it comes to gear and tire.
www.f-body.org/gears
www.f-body.org/gears
BTW not bad at all for the first time out and at your DA!
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Are you a nitrous junkie or a casual user? If you try to run both, your car will be a compromise. Gear it to run great n/a and it will max out on the nitrous at 1000ft. One way to do both sucessfully, is to only spray at 1/8th mile tracks. Leave the 1/4 runs for n/a but spray it hard for 1/8th mile runs.