Hey, i jsut got a 91 gta w/ a 305 tpi, automatic, and a 2.73 rear end (limitedslip), and i was wondering if anyone knows what it should run in the quarter mile? thanks

 

mid - high 15s at 86-88 mph

 

Don't be surprised if you can't get even that fast, I have a few slips from when my car was new and I was in the low 16's. Man that 305 was a pig, but what it lacked in HP it made up for in longevity.

 

I thought the '91-'92 LB9/autos typically ran low 15's in the 1/4 mile stock. 16's? Can't be. That's more like LG4/LO3 territory there.

I think Alex ('92GTA) was able to run a 14.7 @ 95?MPH. That's with a completely stock LB9/auto and 2.73s.

He now has the original SLP "performance package" upgrade (runners, exhaust, headers, CAI, chip) and he's now running a 13.7 @104mph. Check his website for details.

That ain't no "pig" if you ask me.

 

low/mid 15s @87-90mph.. i have timeslips from when my car was bone stock to prove it. The other guys must be thinking of the earlier peanut cammed cars.

 

What about a LB9 5-speed? (Namely, 89 Formula)

 

well my cars ran a 14.5 and i had my friend in the car. It engine temp was like 230 and outside temp was like 80. my car should run 14.3, i know it can maybe even better with a good 60 foot.