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View Full Version : HOB Tunes the 2nd GXP to arrive in KC. :)

EA
2009-02-23, 06:05 PM
Fresh off the transporter, with the stickers and everything wrapped up!
No other changes made, other then a tune.

Sadly it was on 87 Octane. :(
Since that's what the dealership filled it up with. So as soon as the car gets a couple thousand miles put on it, and filled with 91 octane, it will be Re-Tune time.

However really good gains, for not touching a thing! These cars ROCK!

http://i43.tinypic.com/2agp2rr.jpg

http://i41.tinypic.com/lwdc8.jpg
Squeaky192
2009-02-23, 06:09 PM
:headbang: M6 or A6? (I think the autos are 6 speeds as well?)
EA
2009-02-23, 06:10 PM
:headbang: M6 or A6? (I think the autos are 6 speeds as well?)

M6,

The A6 will be about 10-15hp less I would assume. Since they have locking converters stock, and are killer trannys they won't be much behind!

EA
Squeaky192
2009-02-23, 06:20 PM
:headbang: M6 or A6? (I think the autos are 6 speeds as well?)

M6,

The A6 will be about 10-15hp less I would assume. Since they have locking converters stock, and are killer trannys they won't be much behind!

EA

Yeah I was going to say it's doing REALLY good if it's an automatic. Still some damn good numbers. :headbang:
TeaQue
2009-02-23, 06:20 PM
Sick!

I plan on taking the goat to you guys when I get LT's this summer.
EA
2009-02-23, 06:46 PM
Sick!

I plan on taking the goat to you guys when I get LT's this summer.

Right on, before you install them, make sure we get a Base line dyno so that we know where we are starting from! :)
KsuMax
2009-02-23, 06:56 PM
Very nice
tommygun
2009-02-23, 09:57 PM
AF :shocked:
DanenGraham
2009-02-23, 10:36 PM
What do you think the switch to 91 over the 87 would have got, 10HP?

Almost 400rwhp, 400ftlbs is crazy i think. Good job
titaniumSS
2009-02-23, 10:43 PM
What do you think the switch to 91 over the 87 would have got, 10HP?

Almost 400rwhp, 400ftlbs is crazy i think. Good job

If it's MO 87 then it's hurting it A LOT. I started getting MO 91 instead of KS and it's noticeable. I'll be going to one of the stations that have 93 octane soon or going back to KS 91.
EA
2009-02-23, 11:42 PM
AF :shocked:

She lost power leaner, she lower power richer.

12.0 was her happy spot. (Another reason why mail order tunes suck)
Everyone thinks these things make power 12.5 or 13.0 Ha Ha, ya right.

If you look at the stock graph, the factory commanded 11.9 up top.
I ended up with 12.0 being the sweet spot. So pretty right on from GM.

Getting it to go 12.0 faster helped with tip in knock, which was the biggest improvement the owner noticed. Other then the top end power with no mods.
BluBeaSSt
2009-02-24, 07:29 AM
Very nice, god that car is sex