I have an 89 IROC-Z, 350 engine, 2.77 rear, stock data is 230hp- 330tq, with behind the fog lights Ram Air, K&N filter, Cat-back Flowmaster (dual outlets)... so where do I run at, use the poll.

 

Moving to theoretical racing board. These messages just don't belong in the organized racing board since they apparently don't race!

 

It was on the right board, its asking a 1/4 mile time estimate. The Theoretical here is for asking "Who Would Win" in a street race.

 

hey id also like to know that time cause i have the exact same car.
89 Iroc
350 TPI
2.77 posi
K&N with foglight ram air/gutter air box
3 in pipe running into flowmaster with dual outs

thanks if you guys can help me with an estimate too, im interested in the results

 

I'd say between 14.7 and 14.5.
Of course this is for a good tuned car.

 

Are you sure about that, 14.7 to 14.5 seems a little high the 89's should run around 14.7 stock.

 

ya 14.7 with a good driver and the lower gears but then again you could have a tweaked carf from the factory. just go to the track.

 

I don't think you'll run in the 14s. I saw your post on the Tech/Engine board and you're getting 11mpg, something is out of tune with your car.

 

Really? If you run rich your car will run worse? My cars running a tad rich (12-13 mpg) and it seems to be running 100%.

 

Woops Didnt mean to hit that button hehe... I wanna hear an answer to IROCThe5.7L's question...

 

I'm no expert, maybe ask on the TECH board, but running rich is better than running lean. However, I would think too much fuel could hinder performance slightly. But, what I was trying to say, I think there is more to it than him running rich, you can get bad mpg other ways besides running rich.

 

Cool, Thx for the reply. Im doing a big tune up this spring, so hopefully My car shouldnt run rich anymore.