i got 89 rs 305 tbi only mod is open air filter my 0-60 is 8.4-8.6 depending on start if i took out the stock ****ty i think 2.73 gears and put in 3.90s what what do u guys think my 0-60 would be, how much faster

 

Those gears may be a little to steep. i could be wrong but 373 gears are the best for speed without losing alot of milage.:}

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if i will lose milage what would be my top speed with the 3.73s and 3.90s

 

there is a calculator that will let you figure this out at the main page of this website.

 

any help

 

my 3.23's get me to 60 in 8 flat

[This message has been edited by Aaron91RS (edited March 07, 2001).]

 

u got same engine

 

If I get a good launch without any wheelspin I can turn a 6.5 sec. 0 to 60 time, shifting at 5000 RPM, but it's not stock either.

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92 Camaro RS 5.0 5-Speed
14" Open Air Cleaner
3.08 Posi-trac
Edelbrock TBI Intake
Crane cam
Ported & polished stock heads 3 angle valve job
HyperTech Chip
UltraFlo cat-back exhaust

74 Dodge Dart Sport 360 (11.2 1/4 mile)

2000 Dodge 1500 Ram Sport

 

Don't go higher than 3.42 rear gears. You only need higher gearing like 3.73 if you had a higher-revving, high power peak engine. With the TBI's short powerband, 3.73 would be a little bit too much.

 

what does a hypertech chip do dont make fu n of my stupidity hahaha

 

It advances the spark curve which will give you like 1hp in the upper rpm. It's not worth the money unless you've done a bunch of mods like full exhaust and intake manifold. I wouldn't change chip unless I went even further and got heads. A custom chip is better because it can be programmed to be even more agressive with the spark curve and disable stuff like EGR and the such. Don't get a hypertech or ads chip unless it's on sale for like $20 to 30.

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, Jon (91 RS too many mods to list)