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Old Apr 22, 2015 | 10:25 AM
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Need some help if I tune my 2006 base ls2 all stock motor how much of a gain can I expect and can a tuner fudge the read out to make it look better
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Old Apr 22, 2015 | 08:44 PM
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Originally Posted by Jack Forbes
Need some help if I tune my 2006 base ls2 all stock motor how much of a gain can I expect and can a tuner fudge the read out to make it look better
I don't know about fugding, but if you think the guy your taking it would do that don't go to him. your not paying by the hp. That said YOU WILL NOT BELIEVE THE DIFFERENCE A CUSTOM TUNE WILL DO TO YOUR CAR! it's worth the $. My car 2006 MN6 LS2, K&N intake crane gold roller rocker arms 1.7 ratio, PP throttle body, just had it tuned 381HP 279TQ somewhere around 435 at the crank, IF you can take a short trip to Cummings GA. I highly recommend Vengeance Racing. nice people fair prices and they know what there doing.
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Old Apr 23, 2015 | 01:26 AM
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Originally Posted by Jack Forbes
Need some help if I tune my 2006 base ls2 all stock motor how much of a gain can I expect and can a tuner fudge the read out to make it look better
Would help to know if this is a manual or automatic trans car.

Base LS-2 makes around 411HP (at the crank) and in a manual car on the dyno for a base runs, should read 350RWHP and 350RWHP torque (at the wheels). With tune, should be able to bump the numbers up about 15RWHP/15RWtorque.

In an automatic trans car, your still have around 411hp at the crank, but due to the trans/ torque converter, your rear wheel HP and torque will be around 335/315 instead.


So raw HP, your gaining around 15HP, but this is far for the end of the story.

GM used the Torque management to hobble a lot of instant HP to the wheels, so when the TM is de-hobble in the tune, the power gains to the wheels is huge instead. So the mere 15h crank gains, feels like huge gains instead. Also, since part of the tune is tuning the Automatic trans as well, what started off as the car shifting and feeling like a Buick due to the way that that the trans sudated shifted before, become instant large unleashed power gains instead.

Last edited by Dano523; Apr 26, 2015 at 12:53 AM.
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Old Apr 23, 2015 | 10:28 AM
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Originally Posted by Dano523
Would help to know if this is a manual or automatic trans car.

Base LS-2 makes around 411HP (at the crank) and in a manual car on the dyno for a base runs, should read 350RWHP and 350RWHP torque (at the wheels). With tune, should be able to bump the numbers up about 15RWHP/15RWtorque.

In an automatic trans car, your still have around 411hp at the crank, but due to the trans/ torque converter, your rear wheel HP and torque will be around 435/415 instead.


So raw HP, your gaining around 15HP, but this is far for the end of the story.

GM used the Torque management to hobble a lot of instant HP to the wheels, so when the TM is de-hobble in the tune, the power gains to the wheels is huge instead. So the mere 15h crank gains, feels like huge gains instead. Also, since part of the tune is tuning the Automatic trans as well, what started off as the car shifting and feeling like a Buick due to the way that that the trans sudated shifted before, become instant large unleashed power gains instead.
what would you guess a tune on a stock ls2 would cost and how long does it take and would it be worth the price of 450.00
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Old Apr 23, 2015 | 10:30 AM
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Originally Posted by Jack Forbes
what would you guess a tune on a stock ls2 would cost and how long does it take and would it be worth the price of 450.00
paddle shift
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Old Apr 23, 2015 | 07:35 PM
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Originally Posted by Jack Forbes
paddle shift
Tunes run around $400, which includes dyno and road time as well.
Note: $100 goes to Hp tuner or EFI live to pay for the software to tune the car (register your car to the tuners computer with software).

As for tuners, some are real tuners that will go through the complete tune to crisp all the car, including throttle response and delays through the curb. So here, they start on the dyno, then street dial the car and trans in the rest of the way.

While some are tooners that will only address what is need for a top end HP/torque numbers only, hence a few dyno passes and call it done.

Check around with the local lads to see who is the tuner to use, hence does a complete tune to crisper everything on the car in the tune, and not just make a few dyno passes with a few tweaks and calls it good instead.
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Old Apr 25, 2015 | 01:24 PM
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Originally Posted by Dano523
Would help to know if this is a manual or automatic trans car.

Base LS-2 makes around 411HP (at the crank) and in a manual car on the dyno for a base runs, should read 350RWHP and 350RWHP torque (at the wheels). With tune, should be able to bump the numbers up about 15RWHP/15RWtorque.

In an automatic trans car, your still have around 411hp at the crank, but due to the trans/ torque converter, your rear wheel HP and torque will be around 435/415 instead.


So raw HP, your gaining around 15HP, but this is far for the end of the story.

GM used the Torque management to hobble a lot of instant HP to the wheels, so when the TM is de-hobble in the tune, the power gains to the wheels is huge instead. So the mere 15h crank gains, feels like huge gains instead. Also, since part of the tune is tuning the Automatic trans as well, what started off as the car shifting and feeling like a Buick due to the way that that the trans sudated shifted before, become instant large unleashed power gains instead.
your dreaming in technicolour thinking a stock LS2 auto car can make 435/415 rear wheel.it wont make anywhere close to that even with a tune.with tune closer to 340 rwhp.yes the tuner can fudge the numbers.the tune is a waste of good money on a stock car

Last edited by irok; Apr 25, 2015 at 01:29 PM.
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Old Apr 25, 2015 | 01:52 PM
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Originally Posted by irok
the tune is a waste of good money on a stock car
IMO, this is an incorrect statement. If you get a complete tune as Dano described, or in my case, I purchased a Diablosport iTune and installed the 93 octane tune and a firm shift tranny tune. I got this from Diablew in a package deal with a custom tune. This transformed the car to make it a joy to drive. I really don't know whether it added any hp or not as I haven't put it on a dyno, but the throttle response is vastly improved over the stock throttle response and the tranny shifts more to my liking, whether in D or S, with the paddle shifter.

If you want to get a tune to add hp, you'll probably be disappointed. But if you want a Vette to drive what you thought a Vette should drive like, you won't be disappointed. At least I haven't been with Lew's custom tune.
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Old Apr 25, 2015 | 02:55 PM
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Originally Posted by irok
your dreaming in technicolour thinking a stock LS2 auto car can make 435/415 rear wheel.it wont make anywhere close to that even with a tune.with tune closer to 340 rwhp.yes the tuner can fudge the numbers.the tune is a waste of good money on a stock car
what part of this DIDN'T you understand? look at the #'s this IS what youy would call a stock car, with a cam and a retune depending on how "agressive" you get with it, you be right there
"That said YOU WILL NOT BELIEVE THE DIFFERENCE A CUSTOM TUNE WILL DO TO YOUR CAR! it's worth the $. My car 2006 MN6 LS2, K&N intake crane gold roller rocker arms 1.7 ratio, PP throttle body, just had it tuned 381HP 279TQ somewhere around 435 at the crank, IF you can take a short trip to Cummings GA. I highly recommend Vengeance Racing. nice people fair prices and they know what there doingthe cam you'd be right there,"
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Old Apr 26, 2015 | 12:55 AM
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Originally Posted by irok
your dreaming in technicolour thinking a stock LS2 auto car can make 435/415 rear wheel.it wont make anywhere close to that even with a tune.with tune closer to 340 rwhp.yes the tuner can fudge the numbers.the tune is a waste of good money on a stock car
Punch in 4's instead 3's.

I corrected the numbers is my original post.
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Old Apr 26, 2015 | 03:58 PM
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All I see is all stock motor, and a tune. I don't see anything about cam. Therefore, I doubt this LS2 will climb into 400 rwhp territory unless the dyno operator is truly doing fudge!
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Old Apr 27, 2015 | 05:48 PM
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Originally Posted by CMY SIX
what part of this DIDN'T you understand? look at the #'s this IS what youy would call a stock car, with a cam and a retune depending on how "agressive" you get with it, you be right there
"That said YOU WILL NOT BELIEVE THE DIFFERENCE A CUSTOM TUNE WILL DO TO YOUR CAR! it's worth the $. My car 2006 MN6 LS2, K&N intake crane gold roller rocker arms 1.7 ratio, PP throttle body, just had it tuned 381HP 279TQ somewhere around 435 at the crank, IF you can take a short trip to Cummings GA. I highly recommend Vengeance Racing. nice people fair prices and they know what there doingthe cam you'd be right there,"
you are clueless.read your own post.your numbers don't make any sense

Last edited by irok; Apr 28, 2015 at 03:31 PM.
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