DiabLew Tuning is THE SHIT!

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May 17, 2010 | 10:33 AM

#41

'06_GXP_89

Staging Lane

Joined: Mar 2010

Posts: 56

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From: Iowa

So what kind of average MPG's are you guys seeing with the tune and no DOD? I average about 17.8mpg right now and just wondering if that will stay the same or get better/worse after I tune it?

May 17, 2010 | 11:17 AM

#42

06MonteSS

LS1Tech Sponsor

Joined: Dec 2005

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From: CT

Quote:

Originally Posted by '06_GXP_89

So what kind of average MPG's are you guys seeing with the tune and no DOD? I average about 17.8mpg right now and just wondering if that will stay the same or get better/worse after I tune it?

on my own car, my mileage went from 18.5 up to 20.5 - 20.8...

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06MonteSS / DiabLew Tune

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May 17, 2010 | 06:41 PM

#43

hurley_21_07

On The Tree

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Joined: Jul 2005

Posts: 199

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From: Hurley, WI

So I ordered the U7191, now am I gonna feel a big difference with just that?

After I get the DiabLew tune how much do you gain over programmer only?

Has anyone had any dyno and/or track results before and after?

I also have a funny idle issue so hopefully something will show up on the logs and then I will be able to fix it once and for all, just feels like its missing a little at idle.

I have been here longer than almost all of you so that should compensate for my noob questions.

May 17, 2010 | 10:49 PM

#44

'06_GXP_89

Staging Lane

Joined: Mar 2010

Posts: 56

Likes: 0

From: Iowa

I find it funny/awesome that you got better MPG after DOD is turned off! I can't wait till I get my tune I hate it when DOD kicks in.

May 17, 2010 | 11:21 PM

#45

bigalnash

TECH Apprentice

Joined: Jul 2008

Posts: 314

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From: cleveland

so wait i thought u just said the trinity would work on my 08 gxp? is just the 08 montes that it doesnt work on?

May 18, 2010 | 12:25 AM

#46

'06_GXP_89

Staging Lane

Joined: Mar 2010

Posts: 56

Likes: 0

From: Iowa

Quote:

Originally Posted by 06MonteSS

absolutely... have done tunes for a bunch of them too...

for the 08 GXP, you'd need a U7194 model Predator, or the Trinity...

Quote:

Originally Posted by 06MonteSS

unfortunately, no...

the diablo predator/trinity only support the 06's...

GM changed ecm's between the 06 to 07/08 models... the 06's use the E40 ecm, while the 07's and up use the E67 ecm...

Ya im confused too! So GM changed the ecm in the 07 model Montes and 07-08 Impys but not the GXP?

Last edited by '06_GXP_89; May 18, 2010 at 09:02 AM.

May 18, 2010 | 07:39 AM

#47

06MonteSS

LS1Tech Sponsor

Joined: Dec 2005

Posts: 2,932

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From: CT

Quote:

Originally Posted by bigalnash

so wait i thought u just said the trinity would work on my 08 gxp? is just the 08 montes that it doesnt work on?

Quote:

Originally Posted by '06_GXP_89

Ya im confused too! So GM changed the ecm in the 07-08 model Montes and Impys but not the GXP?

well, there are no 08 montes LOL

sorry for the confusion, my bad!... for the grand prix gxp 5.3L, it's 2006 only....

for the G8 GXP with the 6.0 / 6.2L engine - 2008-2010 - yes, they are supported...

my mistake, sorry... have been helping a lotta people lately with their "G8" GXP's... so when I hear "gxp", I've been automatically thinking about the new gxp's... forgot where I was lol...

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May 19, 2010 | 10:11 AM

#48

LS1 Racing

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From: 78°14′46″N 15°27′56″E

Quote:

Originally Posted by '06_GXP_89

So what kind of average MPG's are you guys seeing with the tune and no DOD? I average about 17.8mpg right now and just wondering if that will stay the same or get better/worse after I tune it?

Well, our Impala SS gets 98% highway miles...about 1000 a week, and our mileage went up nearly 1 MPG (on a calculator, not the DIC, which becomes even more inaccurate after a tune). Since, we drive all-highway, we retained DoD, as we lost 2 MPG from stock just by turning off DoD.

Quote:

Originally Posted by '06_GXP_89

I find it funny/awesome that you got better MPG after DOD is turned off! I can't wait till I get my tune I hate it when DOD kicks in.

Most of the owners that gained MPG saw those gains becuase they drive primarily in stop-and-go situations in the city. It seems that DoD does hurt mileage in that kind of driving. If you drive a lot of highway miles like we do, keeping DoD makes financial sense, even if it does hurt the fun-to-drive factor.