How much faster is a LS1 compared to an LT1?
#16
To the original poster sorry for not starting a new thread !!! For those i offended sorry also !!!! For those who gave me an answer thank you kindly for your input
Last edited by BLUE OVAL NUT; 06-03-2008 at 04:36 PM.
#17
But to the original poster. You seem to care WAY to much what people on the internet think about your car. You have an LT1, be happy. Sure it's not the fastest car in the world, but they sure as hell are fun.
I also suggest you actually take your car in, or get pictures to actually see if it's a 383 before you go dumping it for an LS1.
#18
For the way I drive, my LT1 fits me perfect I don't drag race and almost never street race. I just use my formula for grunting through traffic and getting sideways on occasion, and for that the instant, brutal low end hit is perfect. For keeping folks from cutting you off, or trying to squeeze you out on lights or freeway on-ramps, I've never had a rig yet of any kind out punch me for a spot For me the LT's powerband is perfect, and honestly I wouldn't trade it for a peakier engine with more power, cause I rarely wind mine up tight enough to matter. If I do any mods, a big part of what I do will be greatly affected by what it does to my low end.......cause for me, just like my bikes, I prefer a big juicy low end over a peaky powerband in my cars
#19
Good use of "advertised" numbers for the LS1 .
Mine dyno'd 317HP/335Tq at the WHEELS!! And mine was a "lowly" Z28, rated at a mere "310 HP" .
The LS1's in F-bodies made pretty much the same ~345 - 350 HP as they did in the Corvettes .
Sure, LT1 cars are/can be quick. But stock-for-stock, "average-for-average", the LS1's are typically at least ~1/2 second or more faster in the 1/4 mile.
Mine dyno'd 317HP/335Tq at the WHEELS!! And mine was a "lowly" Z28, rated at a mere "310 HP" .
The LS1's in F-bodies made pretty much the same ~345 - 350 HP as they did in the Corvettes .
Sure, LT1 cars are/can be quick. But stock-for-stock, "average-for-average", the LS1's are typically at least ~1/2 second or more faster in the 1/4 mile.
#20
Yes, that's a 28 RWHP difference from the A4 --> M6!
Faster than a new Mustang? No ****!! Did you ever have any doubt?
#21
#22
I don't think it's out-of-the-norm for an '01/'02 LS1 with a T56? I had previously dyno'd the car when I still had the original 4L60E (yes, I did a 6-speed conversion) and through the A4 and 4.10 gears, the car dyno'd 289 RWHP/307 RWTQ.
Yes, that's a 28 RWHP difference from the A4 --> M6!
Faster than a new Mustang? No ****!! Did you ever have any doubt?
Yes, that's a 28 RWHP difference from the A4 --> M6!
Faster than a new Mustang? No ****!! Did you ever have any doubt?
#23
On average, a full second and 5mph faster in the quarter mile.
A car length? You're dreaming, or you're racing crappy LS1 drivers.
Check out this thread -- you can get an '02 LS1 for under $7000 if you work at it.
A car length? You're dreaming, or you're racing crappy LS1 drivers.
Check out this thread -- you can get an '02 LS1 for under $7000 if you work at it.
#24
All other things being equal, stock LS1 F-bodies perform than stock LT1 F-bodies in EVERY measurable way. LT1s just feel faster off the line. It's fine to prefer them because of that, but it doesn't make them faster.
#25
Back to topic, I agree with 5-6 tenths quicker for 1/4 mile on the LS1 cars. With even normal bolt-ons, I've been reeled in by LS1 cars in the past. It takes quite a few bolt-ons to keep pace with most LS1's at the track, unless they simply cannot drive for sh*t.
Edit - I think it should also be noted, that very similar to the LS1, the LT4 was indeed under-rated just a bit, and also revs nearly 1,000rpm higher than a stock LT1, as placed in those fbodies. That is/can be proven, as I did so many times prior to selling that car. Breathes very well. With that said, horsepower numbers will vary slightly throughout all those production years and models, and '01-'02 LS1's also came w/LS6 manifolds didn't they? And some w/LS6 heads as well...can this be confirmed, or was that just some GM Hi-Tech hype? I believe the casting numbers proved this. Some of those cars were just plain factory fast - the LS1s were brutal as-is.
Last edited by SNOTGREEN; 06-04-2008 at 08:32 AM. Reason: Added LT4 note
#26
Then in my opinion, for you, this is what I would do: 3.73 or 4.10 gears, stock converter, stock manifolds or small tube shorties w/catback, and a cold air induction.
#27
#28
Thanks for the info Green I'd like to mod my car abit....but honestly my modding experience is mainly with bikes. I do know that with engines in general its hard to have the ultimate top-end and ultimate low end in the same engine, its always a compromise. I've learned through bikes, and abit through cars, that I prefer the big low end hit as long as it pulls consistent all the way through. I don't need anymore soft bottom ends, then the big high rpm hit, the motors don't last as long cause of the r's you need to run to get the power.....and in real world driving sometimes they can be more of a pain. Of course if I was a racer my opinion would be the opposite lol. But I'm def gonna save your info for future reference How would 3.42's work for me you think? I don't want to give up too much mpg