TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Racing this Saturday....

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Old Jun 6, 2002 | 09:41 AM
  #1  
91Bird305's Avatar
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Joined: Oct 1999
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From: Davison / Troy ,Michigan
Car: 1991 Pontiac Firebird
Engine: 3.8
Transmission: 700r4
Axle/Gears: Dana 60
Racing this Saturday....

Well I am gonna run my car this saturday. Since last fall I did the ultimate tbi mods (Thanks to Camaroracer1992@yahoo.com I suggest everyone send their TB units to him) and did the injector spacer and afpr and boost my fuel pressure and bumped my timing up to 8 degrees from 4 degrees. Last fall I think I ran a 15.5@87mph so I hoping this gets me a flat 15 or maybe even a high 14. My best 60ft times last fall were 2.1xx I will post what I ran and tell you guys how much the ultimate tbi mods,afpr,injector spacer and bumping my timing up made a difference in my 1/4 mile time and trap speed. Any suggestions before I head out Saturday?
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Old Jun 6, 2002 | 04:26 PM
  #2  
NJ SPEEDER's Avatar
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From: Ewing, NJ
go for the easy traction stuff, drop one end link off the front sway bar and put 45-50 psi in the front tires to help teh car roll out better. since you are just plannign to run for et's try to stage as shallow as possible, that 8 inch head start can make a big difference at the other end of the track.
if you can get in a lot of runs play with your shift points a little. when i was still on hte stock cam i used to find a little more mph if i shifted into 2nd at 5000 and into third at 4700. for some reason the car woudl suddenly pick up like 1/2 an mph when i did it.

good luck!

later
tim
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