L99 vs. LS3

[camslambam]

Originally Posted by daveagogo1

The two have very little difference in the real world. The l99 is quicker off the line but a tad slower up top. This is why the avg quarter times are so close. They are pretty dead even overall.

They aren't that dead even.... On average an L99 runs mid to high 13s. An LS3 low 13s. Big difference and that's only in 1/4 mile. Go for a straight mile and the LS3 will have the L99 by a bus or two.

Tune your L99. Best. Mod. For the money. On some points in the curve it picks up as much as 40 torque....

[daveagogo1]

Originally Posted by camslambam

They aren't that dead even.... On average an L99 runs mid to high 13s. An LS3 low 13s. Big difference and that's only in 1/4 mile. Go for a straight mile and the LS3 will have the L99 by a bus or two.

Tune your L99. Best. Mod. For the money. On some points in the curve it picks up as much as 40 torque....

Care to lay some cash on that? I ran 13.2 stock out of the box. I am 7-0 vs ls3 stock to stock. At pony wars with only an intake i went 3-0 vs ls3. Lost to eventual c bracket winner. Also an l99 with just a cai. Fyi Every ls3 that lined up in quick 16 c bracket was tuned and still lost to the l99's that day. Power means nothing if you cant put it to the ground.

[camslambam]

Originally Posted by daveagogo1

Care to lay some cash on that? I ran 13.2 stock out of the box. I am 7-0 vs ls3 stock to stock. At pony wars with only an intake i went 3-0 vs ls3. Lost to eventual c bracket winner. Also an l99 with just a cai. Fyi Every ls3 that lined up in quick 16 c bracket was tuned and still lost to the l99's that day. Power means nothing if you cant put it to the ground.

And I ran 13.2 stock also. Twice. Only twice. Every other time I ran was 13.4+.

I know how powerful these cars are, but LS3s get much more power. On full bolt ons I am beating every car in this country. And we don't run 1/4, we run 1/2-1 mile.

But a properly driven LS3 will beat an l99 stock for stock.

[WadeWilson]

Here we go again.....

[daveagogo1]

I cannot speak to anything over a 1/4. I am sure the ls3 will pull ahead beyond a quarter but, most of the world runs quarter or less. From actual tracl experience i have found they are very much equals. The biggest issue for ls3 is launching and shifting. We all know most drivers are not even close to as good as they think they are. At any rate they are much closer than you are making it sound. High 13's l99 needs a fuse pull and some better gas.

[Rock-It Man]

LS3 has higher peak horsepower, but, below 4000 rpm, the L99 has higher torque and so delivers more horsepower in most real world driving conditions.

Horsepower is just the product of torque and engine speed.

[slick rick]

Originally Posted by kiteman

but there is no gas guzzler tax on the ls3 either? is there? i sure as hell didn't pay any i don't think...

There isn't because of CAGS aka skip shift (1 to 4 shift)

[aet08]

Originally Posted by MyIBMssRS

Active fuel management disables 4 cylinders.

thats right, i've had mine disabled for so long I forgot.

[SSGUNNER]

L99 FTW!!!


JK....driven both and love both. LS3 not convenient for me and my commute. As it is i hate being stuck in traffic.

[S3XPanther]

I think aet08 might have something to say about LS3's being faster lol. You did do an LS3 conversion, right? No way those AFM litters are keeping up with 950whp, my God!

[bill2129]

Originally Posted by 1Camaro2SS

LS3 should have been used for autos period. GM screwed this one up. No need for L99.

THIS!!!!!!!!!!!


Both 4th gens 6speed and A4 had an LS1. And I'm an auto guy. I might be getting the new 5.0 when it comes time to pick between them....

[S3XPanther]

Originally Posted by bill2129

THIS!!!!!!!!!!!


Both 4th gens 6speed and A4 had an LS1. And I'm an auto guy. I might be getting the new 5.0 when it comes time to pick between them....

Really? You're an auto guy, and you'd cross over to the dark side just because of AFM? Turn that off, add a tune, and I'll guarantee that a 5.0 will never cross your mind again. At the end of the day, it's still an LS based block, and LS based blocks DO make power.

[kiteman]

well, let's just put it this way...most people don't tune. if you're buying a car and planning to leave it stock, the best car/power for your money is definitely the ls3. i was under the assumption that maybe the auto was lighter or something. seems crazy gm makes the same cars with different power levels.

[S3XPanther]

Originally Posted by kiteman

well, let's just put it this way...most people don't tune. if you're buying a car and planning to leave it stock, the best car/power for your money is definitely the ls3. i was under the assumption that maybe the auto was lighter or something. seems crazy gm makes the same cars with different power levels.

Even without a tune, an L99 will still beat an LS3 out of the box, unless the LS3 driver is Michael Schumacher. Higher torque down low means the A6 is faster to 60 as well.