just wondering what a stock 89 trans am gta would run in the quarter mile with a 5.7 tpi

 

My 89 TA ran 15.1 @ 90 Bone Stock, no tune up, nothing.

Nick

 

It should run between high 14's and low 15's. Like the previous posted times. But if you do or have recently done a tune-up and practice launching you might be able to sqeeze out a 14.6ish time.

Hey 89BlueTA my name is Nick also. I'm easily amazed can't you tell.

 

Mine went 14.2 @ 97.

 

My 87 GTA went 14.7 @ 93 stock...

 

You should expect mid 14s if your car is running good and you can launch.

 

Go to this link. it has alot of information on the IROC for all years including mag articles. http://www.iroc-z.com/articles/article.htm alot of great stuff.

 

i havent taken mine to the track yet, but im going to next summer even though mine isnt stock i hope i get some decent times

 

With what you have in your car you should even hit high 13s.

My car totally stock Ran 14.9s Then we did some minor mods on her & she will run 14.7s all day long. You have to also fig in Alatude(spelling??) & the weather.

We have two tracks here & I run 14.8s at one & 14.6-14.7s at the other one One is at sea level the other on is 500ft above.

 

My TPI 305 ran a 14.40 @ 97mph N/A, Stock Heads, Stock Cam!! I dont feel like writing out a mod list here though.

However there are a couple 5.7L TPI IROC's at the local track and they both run 14.6-7's all day long. I guess it depends on the miles, how worn down it is and if you can drive!! My buddy's 5.7L IROC stock was just a bit slower than my 305, granted it wasn't stock but it was just a step behind at the track.

Mike

 

if your exhaust is a full 3 inch all the way back i'd say expect mid to high 13s. thats what im shooting for when the track reopens. gonna do that and then try to hit some 12s on juice.

 

my car when it was at 330hp at the fly wheel ran a 13.6 with all the new mods i havent ran it my new 2.02 head should make a big diff

 

14.5 on a stock engined (few little free mods) Iroc. You should hit 14.8x easy without working on it.

 

According to a Motor Trend review of the 1987 Iroc with the L98, they ran about 14.5 that year from the factory. You can download the video at www.thirdgen.org

 

Well a 14.8 should be easy with a 350, now if it was a 305 that would be a fast time, 350 with free mods should be closer to mid 14's such as 14.5's, maybe lower depending on location and conditions.