i just installed my 4# lower last week, and i was ancious to see how much power it added..so i called up a freidn with a supposidly stock LT1 Firebird (automatic) to do a couple runs with me...we have raced many times before and we are pretty even till i make full boost and slowly pull a car on him....SO!!! we get next to each other and go from a 20mph roll to about 50 or so...not took much room to really race on the street we were on. i hit it and immediatly pulled a car on him and he stayed on my back bumper the hole time...i know LT1's arent supposed to be that quick! because i have raced ram air trans Amms before and beat them easily! so his car must not be stock!! exhaust was stock and i heard no whistleing comming from under the hood....anybody else have any LT1 LS1 stories?

 

When my Camaro was stock I ran abest of 13.78@102mph. A friend of mine has a stock one and ran 13.8 this year, Well driven they will hit high 13's stock. They are hard to drive (the 6 speeds anyway) because they get peak torque at 2100 RPM. So you either bog or spin.

With my mods 6# lower, chip, intake I wouldnt even know if a stock LT1 was racing Well not exactly but oyu get the point. I have some videos of me running a stockish LT1 at the track and pulling him by a couple of dozen car lengths.

Race him from a dead stop and see what happens. LT1's are no slouches and from a roll he will do better then from a dead stop.

Oh ya, Play safe

 

You should not have a problem with an LT1. I had a 94 trans am and I ran 14.8. LS1's however should run 13's stock. I've raced a buddy of mines 99 Camaro with just bolt on's and tires and he'd get me most of the times. (I never could drive mine...)Just recently I got him for the first time. Most of the times, I would just sit there and spin, and he was on a drag radial, so he'd get me out of the whole, then we'd shut off at 100... He'd got me all but once. I should have gotten him, but I never launched it right... LS1's are pretty quick even stock. LT1's I dont see how he can be hanging with you now with the 4#er on... I went 12's with just the 4#er that is no where near what my ta did stock...
Shane

 

dont worry, my friend has a ws6 that was
supercharged by east coast, he is putting
450 to the wheels. we raced 5 times this past
sat night, i beat him everytime.. he was pissed
i told him he payed an extra 8k for a smoke machine.
on the street from a dead stop, the L can do some
damage as long as ur not to throttle happy off
the line. by the way, it was like 30 deg out
we bolth agreed our gauges were reading 2lbs
more

 

14.8 Man something was wrong with your car or you are at 5000 feet above sea level

 

No nothing was wrong with it, I am in Illinois. It was my first time at the track, but I ran the same time twice... I didnt do any mods to it and didn't know much about racing... I was happy to even get in the 14's. What should it have ran?
Shane

 

Well as I stated I have run 13.7's 100% stock including stock air filter. I have seen 13's many many times out of a stock LT1 F-body but on average I would say 14.1@100mph is what a stock LT1 should run.

 

13.7-13.8 stock is amazing out of an LT1. I must have been doing something wrong. I thought 14.8 was about average for the 94 ta... Thanks for the heads up. I didn't know the lt1's were in the 13's like the ls1's. I really like ls1's. My friend has a 99 Camaro ss and my other buddy has a 2000 ws6.
They are sharp looking cars.

 

Shane or someone who is familiar with GM's:

can you give me stock times for a newer Z-28, Camaro SS both auto and stick, and Vette auto and stick.

Im just curious how my stock times of 13.40-13.50 stack up. Thanks.

 

A stock LS1 can easily run low 13's with a good driver.


My ATI Procharged Z28 would rock!

 

Some models with the Lt1 run very fast, id watch out. Before the car I have now, I had a 94 Firehawk...basically has true ram air, and a few little other things...stock the car ran a 13.4....with just headers and free mods, it ran a 12.8....got it down to a 12.6 with headers, Nittos, 2800 vig stall, and MSD ignition....oh yea and this was with 70,000 miles.
Lt1 Firehawks/Ws6 Lt1's with the true ram air are very quick cars.....I could get Ls1's up top, and I would rape them off the line with the fat torque curve.

 

The fist wekend i started driving less than two years ago i raced a ram air trans am. This was when i was bone stock and didnt even know what mods where. We were dead even froma roll then i sayed lets go from a stop. he never had a chance then 2-3 truck lengths. I was siked and ordered a flip chip and pulley the following week. SOmeone to had teach these chevys arounf here what a Lightning was. NOw they to the L

 

Nice corvette man I love corvettes.

Here is a site that lists some 1/4 time estimates for most cars...
Auto Central

1993 Pontiac Firebird Firehawk 4.9 13.5
1993 Pontiac Firebird Formula 6.1 14.7
1993 Pontiac Firebird Trans Am 6.3 14.8
1994 Pontiac Firebird Formula 5.8 14.1
1995 Pontiac SLP Firehawk 5.3 13.9
1995 Pontiac Firebird Formula 6.7 15.1
1995 Pontiac Firebird Trans Am 5.6 14.0
1996 Pontiac Firebird Formula 5.8 14.3
1998 Pontiac Firebird Formula 5.3 13.8
1998 Pontiac Firebird Trans Am 5.1 13.4

That's why I thought my 14.8 was right on track for my 94ta. (see the 93 trans am running 14.8) Anyone else with an lt1 run low 14's to high 13's stock?
Thanks, Shane

 

I would say that's good for even an LS1. They run mid to low 13's stock. There has been a hand ful dipping into the 12's (12.90) bone stock at perfect conditions... They are real nice cars. My buddy ran 13.4 and 13.2 in his ws6 with just a chip and exhaust. The ss is 6 speed and he runs 13.0 with full exhaust and a mass air meter I think. Both are real nice cars.
Shane

 

thanks, the Z06 is my dads

most stock lt1's ie. Z28's, Trans Am's will run like high 13's/low 14's.....they are rated at 285 hp.....the 94 Firehawk was rated at 315 with the SLP 2OTL exhaust option which mine had, so with the performance exhaust/true ram air, those cars run mid to low 13's stock....seen it happen many a time

Stock Ls1's generally run mid to low 13's, non Zo6 vettes usually run high 12's