Stock LT1 and LS1 times

[ITSSLOW]

How fast does a stock LT1 6spd car got in the 1320? LS1 in the 1/4 mile?

Thanks,
Tom

[1BADAIR]

mine went 13.26 @ 107

[SS4Matt]

i don't remember the exact time, but i remember in an older GMHTP magazine, some dude took a bone stock SS (6 speed car) with a shitty old air filter and all and street treads went in the 12's...i wanna say like 12.6 or 12.7...something pretty impressive like that

[GETGONE]

LT1's are slow stock. Low 14's for most with a FEW in the high 13's stock. My car bone stock ran a best of 13.008 but with my new Toyos and 3pt SFC's and STB, and cutout airbox ran a 12.98. Stock with just MT drag radials last fall I pulled a best of 12.69.

[ITSSLOW]

Any LT1 guys wanna chirp in?

[JoeliusZ28]

the best time i ran with mine very close to bone stock was 14.5. However I wasnt very good at driving and i know I could get that down to AT LEAST 14.2 if i could do it again today.

After doing headers on my car i believe that the terrible stock manifolds are the reason they are considered "slow." My LT1 would run out of steam around 4800 rpm with the stock manifolds. They simple get choked out in high rpms. I would never shift my car above 5k because there was no reason to spin the motor that high if the power wasnt there. Now that I have full length headers, I ran a best of 13.69 even with cats. I beat a a4 C5 vette as well as a GTO without much of a problem. Now that i cut the cats itll probably be a bit quicker yet. Ill have to see in the spring. The car pulls right up to the rev limiter now.

Also, my car seems to be dead even with lid/catback LS1 cars, at least from a roll. I still havent perfected launching my spec 3 yet.

[JoeliusZ28]

actually if you want to get a feel for what im talking about with the before/after effect of headers, watch the exhaust video in my sig.

[8URPONY]

My 94 Formula went 13.9 at 101 my 00 Z28 went 12.8 at 108

[ITSSLOW]

My 94 Formula went 13.9 at 101 my 00 Z28 went 12.8 at 108

Dead stock?

[8URPONY]

Stock

[shiftinda93z]

We have a timeslip database ^ up top! Stock to Stock, I'd say 13.0 to 14.0 for LS1 and LT1.

For reference, my LS1 with 4.10s, a lid/cutout did 12.9, capable of 12.8s ish...

[transampimp]

With just a flowmaster cat back and an amazing 2.4 second 60' time I managed to run a 14.5 second 1/4 mile. It was my first time to the track so dont pick on me. After doing my mods I improved my time to 13.9 seconds with a 2.2 second 60' time. I'd say with a set of drags slicks she could have easily pulled a high 13 stock and mid 13 with my mods.

[02hawk796]

The LT1 Firehawks were going 13.5 stock, but that exhaust option bumped the hp up to 315, too.

[Formula Z]

My LS1 went 13.26 @ 106.3 with just a SLP Loudmouth exhaust, but the rest is stock, for now