UTVOL06

Ofcourse this is primarily a speculation thread, but assuming the LS3 coming to the 2008 model base corvette this year gets 25-50hp increase what kind of 0-60mph and 1/4 mile time improvements could we see? I know the C5 Z06 with 405 Hp and a lighter body achieves 0-60mph in 4seconds flat pretty much and as low as 11.8_ seconds in the 1/4 mile (Stock).

Can we expect the base corvette to pull similar numbers with the new engine even though it weighs a little more than the C5 Z06?

Ofcourse we haven't seen really any Torque numbers yet?


Thanks for any input!

P.S. thanks Moderators

LS1LT1

Too soon to tell, the car might be rated higher (say 425hp+-) but in reality with the newer power rating system it might not actually be much higher than the power that the current LS2 generates.
Different standard of measurement and all that.

k0bun

no...

burtonbl103

The rear handel delete will ad 15 hp

LS WON

What is the LS-3 engine? A new engine for the 2008 Corvette? What other changes to expect.

LS1LT1

Oh yeah it's the latest craze, everybody's talkin' about it.
6.2L V8, new colors, maybe some new wheels too.
Nothing etched in stone yet but it looks likely.

LS WON

At this rate I'll never be able to keep up.

Vette_DD

You've got to come back here more often than once a month to keep up.

http://forums.corvetteforum.com/show....php?t=1532281

UTVOL06

Well, hopefully the additional power will give us instead of 0-60mph in 4.3seconds...maybe 4-4.1seconds. maybe shave 0.2 tenths off the Quarter mile.

LS WON

I'm trying to kick this addiction. I'm going cold turkey

jschindler

0 - 60 times have become meaningless to me on todays performance cars. It is all about hooking up. The only times I want to see now are 1/4 mile - both ET and trap speed. By looking at both, you get a better idea of how the car performs in the real world of street driving, where a perfect launch is not critical to understand what the time is telling you.

LS WON

That's what they have automatic trannys for

BADC64GO

My guess 12.0 116 mph

NORTY

The LS-3 is already in the GMC Denali/Caddy Escalade and making 400hp/417tq in that config. Just for comparison purposes,the LS-2 in the Silverado is 367hp/375tq. If this is realistic, then it stands to reason that the LS-3 will develop 436hp/445tq. This also tells me the LS-03 will not rev to 6500rpm. Maybe to 6000? Don't forget VVT also. We won't get into AFM or DI here.

LS1LT1

As a budding young car enthusiast in the late, late '70s/early '80s all I looked at was a car's 0-60 time...but as time wore on and I gained a little more knowledge I learned to appreciate the other yardsticks of acceleration.

LS1LT1

True, though the Escalade/Denali motor is actually called L92 (makes 403hp I think) and that tall truck intake is of course different than what the C6 would be getting as likely the cam and compression ratio would be as well.
And I don't think the motor in the Silverado is actually considered an LS2 though they all share some resemblence/similarities.

NORTY

True, breathing differences will be there as well as cam grinds,comp ratio. The Silverado gets an aluminum block 6.0 liter with hp#'s stated above. It also gets Variable valve timing. I don't know if the goal for VVT is bottomend torque or emissions or midrange punch. I doubt it's for topend rush. (At least in a truck config.) You're right the Escalade is rated @ 403hp while the Denali is 400hp. (Probably less restrictive exhaust or intake.) The thing that surprises me most is the hp/tq #'s are reversed. It tells me this engine will not rev beyond 6000.

FWIW, I see AFM as a gimmick this isn't necessary on the Corvette. (It won't be wanted either, I'm sure.)

LS1LT1

Good point, we might see a reduction in redline/rpm range with the new motor possibly.


I agree, due to it's weight, gearing and drag coefficient the Corvette still really shouldn't need AFM/DoD, even with a potential power increase.

LS WON

Corvette has alrways had the advantage in its lighter weight and aerodynmics over competitors.

AFVETTE

For track used I'd hate to see ANY reduction in RPM's. Down shifting from 4th to 3rd for corners with 400 to 600 less RPM's could really add seconds to your lap times.

That doesn't sound good or fun. I hope everyone is wrong about a reduction in the redline. And 0-60, 1/4 times are meaningless to me as that is as much a by product of the driver than the car. I recall getting my head handed to me in my 03 Z06 by a punk in a Mustang SVT Cobra at a Test and Tune night purely due to the fact I had a hard time launching. Was his car faster, technically no, but on that night and place he had time slips and photo's to show on some Mustang forum.

Tom