I know the all aluminum LS1 is the superior engine, but how far is the LT1 behind. How does a bolt on LT1 run with the LS1. Basicly I'm lookin into buying a T/A and want the LS1 engine, but the LT1 is more affordable. What kind of times do you see with a H/C/I Lt1?
in my view, the 93-97 is the 4.0 gen and the 98-02 is the 4.5 gen when an LTx camaro had sex with a sebring, and an LTx trans am had sex with the batmobile.
Location: Halfway back on the Highway to Hell...again!
Posts: 516
I currently have both engines and have dealt with both. It will take a full bolt-on M6 LT1 to run with a stock A4 LS1. There really is no real price difference in components for either. Heads, cams, and other internal / external parts are equal in cost. The only real difference is in the cost of self tuning programs or mail order tunes for Gen III vs. OBD I pcm's.
as for times, that all depends on what cam, who's heads and any free-flowing intake will do. Besides, the only real upgrade for intake is the LT4 w/ LT4 style heads. And that isn't much of an upgrade as per an LS1 going from stock 78mm to a FAST 90/90.
__________________ 94 Impala SS, ported intake, Personal Alum. heads, Cam, SLP Intake, 52mm TB, Long tubes, MSD Digital 6, MSD Digital window switch, Compucar N2O on 150 shot, Custom d/s, Built/welded rearend w/ 3.73s, Moser axles. Currently up with toasted stock tranny.
i think the lt1 is better on the low end torque side but the bad part is once you get in the upper rpms it starts to fall off. the lt1 is definiely the more affordable of the two to build up and can make good power with H/C/I. Depending on how far you plan on going with the setup you can look for 12s definitely and 11s depending on how far you go with everything. ive got the mods in my sig and run 13.4s on street tires and im bout to put my hot cam in and be in the 12s
__________________ 95 T/A- its quick
95 Formula- getting a face lift, 408, and some boost
I currently have both engines and have dealt with both. It will take a full bolt-on M6 LT1 to run with a stock A4 LS1. There really is no real price difference in components for either. Heads, cams, and other internal / external parts are equal in cost. The only real difference is in the cost of self tuning programs or mail order tunes for Gen III vs. OBD I pcm's.
as for times, that all depends on what cam, who's heads and any free-flowing intake will do. Besides, the only real upgrade for intake is the LT4 w/ LT4 style heads. And that isn't much of an upgrade as per an LS1 going from stock 78mm to a FAST 90/90.
Really? I have an A4 97 Formula and I run a 13.2 w/o "full bolt ons" that's enough to beat most stock LS1's, A4 AND M6. I have no problem beating LS1's.
Location: Halfway back on the Highway to Hell...again!
Posts: 516
Like I said "run WITH".... and my stock A4 2.73 rears ran 13.0-12.9's all day long. now with nothing but a lid, homeported TB and MAF, headers, ORY and a 125 wet shot, I'm running 11's and still pulling the 30mpg hwy. Just wait till I get the Stall put in and ditch these 2.0 60' ers
__________________ 94 Impala SS, ported intake, Personal Alum. heads, Cam, SLP Intake, 52mm TB, Long tubes, MSD Digital 6, MSD Digital window switch, Compucar N2O on 150 shot, Custom d/s, Built/welded rearend w/ 3.73s, Moser axles. Currently up with toasted stock tranny.
The LT1's have pulled pretty close to the LS1's recently. I would hardly compare a FAST 90/90 with an LT4. A 90/90 setup runs over $1,000. It's worth 20 hp but is expensive. Other than the intake they are close in HP and price for upgrades. The LS1 block will save you some weight off the nose and has 6 bolt mains vs. 2 bolts for LT1.
Like I said "run WITH".... and my stock A4 2.73 rears ran 13.0-12.9's all day long. now with nothing but a lid, homeported TB and MAF, headers, ORY and a 125 wet shot, I'm running 11's and still pulling the 30mpg hwy. Just wait till I get the Stall put in and ditch these 2.0 60' ers
I ditched 200 pounds AND added drag radials, once I get a stall, I'll be mid to low 12's with gears.
Pointless thread, Ive raced my freinds LS1 with my LT1 when we were stock.
Put a car on me everytime, I would take him outta the whole. We raced like 20 times or so. Just messing around alot and it was always the same out come.
LS1s dont SMOKE everything, Ill driven them all and been around all of them and I know what they can do.
Im a fan of both, LS1 is a better motor but the LT1 in real world isnt to far behind.
My first post got all screwed up. I had asked if you ditched the airbags or something?.
Nope...
Removed front sway bar and all the brackets, the AIR and EGR, going to completely remove the A/C system, removed the sound deadener from the carpet. The headers also weigh less then the manifolds, not sure how much. I just followed the weight reduction list and took a bunch of stuff off.
The LS1 is a much more advanced engine. They generally dyno over 40+ rwhp more than an LT1. I was just at the track last night, and stock LS1's were running low 13's and stock LT1's were running low 14's. Of course there are exception's in either case, but the LS1 starts off with a pretty big advantage.
__________________ 98Trans Am M6(SOLD) patriot stage II heads, 93pony custom cam, ls6 intake, pacesetter longtubes w/cats, gmmg w/ magnaflow bullet, powerbond pulley, ported tb, pro 5.0, 3.73's, racetronix 255, eibach pro-kit, bmr lca's w/relocation brackets, umi panhard bar, bmr st brace, kb double diamonds, poly bushings, !a/c and more. http://s2.excoboard.com/forums/18103...848/254909.jpg http://sd.ootoot.com/Content/whistles/jeff.wmv
They are both great engines, of course the LS1 is superior in almost every aspect. And the topic has been debated at least a million times. It all depends on what your looking for, and what you want to spend. With the right amount of money anything can be extremly fast, most of us with smaller budgets drive LT1 powered cars, because they are cheap. LS1's are more expensive to buy, and usually mod. But with the prices on LS1's starting too drop, I might be selling my LT1 for around $4500 and scoring a LS1 Z or SS for 9-12k. Some people also prefer the different styling, I love both personally. But some prefer the LT1, and others the LS1's. And that plays a big role in which car they buy. I bought an LT1 because it was affordable, still fast, and I'm a Camaro fanatic. If I had more money to spend I probably would have went LS1 just to have a more powerful car from the factory, and a newer car. But I'm happy with my LT1, and if money would allow, I would keep it... and still buy an LS1.
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With the price of ls1 trans ams and camaros below 10,000, I would prolly go with the LS1. B
Ya thats if you want a mid to high mileage A4. Or a modded out one. I guess it depends on area too. Here in WI, you could have an M6 and a A4 identical and the M6 would go for several thousands more. Also the low mileage ones are going in the 20s! Again that is the M6's, almost every lot has either a camaro or t/a but its almost always a A4.
Quote:
Originally Posted by Redneck Z
I was just at the track last night, and stock LS1's were running low 13's and stock LT1's were running low 14's.
Yes same times in my area too. Stock ones that is.
LT1 vs. LS1 
