AirBusPilot

500 - 436= 64

64hp = headers/tune?

That's all it takes to match an LS7?

ace67

Herregud att du orkar jobba i det här landet ...... så många självutnämnda experter och alla har en egen dyno hemma i garaget.

timd38

Not sure I agree with you.

madmax4499

i thought headers did not add much hp to a mild bolt on car? if im wrong, i better get some ordered.

jon6.0

My personal observation has been that manual trans Corvettes are running about 10%-11% drivetrain loss on the dyno myself and a few other locals use. My buddy with a bone stock Z06 was at 454rwhp. Most LS3 Corvettes are at 380-390rwhp on that same dyno.

danieloneil01

OP, in your post.


Numbers do not add up over stock unless you meant to say 50RWHP and 35RWTQ over stock which is believable since you're basing this off an Auto which needs tuning off the factory floor to wake it up.

I however do not believe in the 500hp label for the package. But you're not the first nor last to do this. Plenty of shops and aftermarket products do the whole add X amount of hp with this performance part. So most guys should know better than to expect advertised power gains unless it's backed up with a money back.

COVERT GUY

Actually it is 505 for the LS7, so it would be more like 69 hp.

Tarheels1

This how to make 500 HP!

redzone

Herein lies the problem.....

There is no static # for drivetrain loss. As power goes up,drivetrain loss(as a percentage) goes down.

Yarbie

LS3 Auto - 492 at flywheel and 410 to my wheels.

jleews6

My car went 123 MPH with a CAI ,headers and a tune. I think it takes about 500HP to go that fast at 3500 pounds.

JerriVette

20 percent for automatics and 15 percent drivetrain loss for manual is accepted ...

Thanks for the heads up on your offered package to accomplish 500 hp...or there abouts..

Detroit1

Hello, I see where you are local to me.

I have a 2011 GS 6 Spd. It already had AR Headers, high flow cats, Vararam cold air and a canned street tune. It has the stock NPP exhaust.

Can you send me a PM on what you would charge to either data log and tune again vs dyno and tune.

Thanks,
Jim

Boomer111

I gained 47 rwhp with the mods in discussion. LS3 MN6 Came in at 422 rwhp 470 ish at the fly wheel.

Going to need a cam to get to 500 rwhp and a big one at that.

hungryhippo

This thread is 6 years old and i would never buy anything from someone that makes such vague claims. Modern cars do not have that much drivetrain loss and it is not calculated that simply.

Curt D

.....And it's been 2 years since the OP had logged in.

cv67

OP dont get sucked into the dyno # arguement, most will never spend a dime anyways and noone will feel 5-10hp let alone the fact dynos almost never read the same.

Bench racing

Good luck

hippy

I disagree, 5-10hp difference will really set you back in your seat.

vetten76

I have a tune, CAI, and Corsa cat back. My 13, 6 speed Grand Sport LS3 made 391 at the wheels.