LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

got tuned HP tuners

Thread Tools
 
Search this Thread
 
Old Feb 29, 2008 | 09:04 AM
  #1  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default got tuned HP tuners

Hey guys....took the gxp to a local racing shop and had them tune it.......they made the usual adjustments - I am going back in a couple weeks for more tweeking............it really woke the car up....dont hesitate to do this.....

sorry no dyno numbers.
Reply
Old Feb 29, 2008 | 10:56 AM
  #2  
EmersonHart13's Avatar
TECH Resident
iTrader: (3)
 
Joined: Jul 2007
Posts: 920
Likes: 0
Default

Agreed, since getting mine tuned it feels so much better!
Reply
Old Feb 29, 2008 | 10:57 AM
  #3  
cherrygxp's Avatar
Launching!
 
Joined: Nov 2007
Posts: 225
Likes: 0
Default

how much did that run you?
Reply
Old Feb 29, 2008 | 11:00 AM
  #4  
EmersonHart13's Avatar
TECH Resident
iTrader: (3)
 
Joined: Jul 2007
Posts: 920
Likes: 0
Default

Originally Posted by 07gxpgray
sorry no dyno numbers.
You should come to thechicagogarage.org dyno day and get some, I am hoping to make it...

John
Reply
Old Feb 29, 2008 | 07:29 PM
  #5  
marcus769's Avatar
TECH Resident
 
Joined: Sep 2003
Posts: 817
Likes: 0
From: Minnesota
Default

Are you noticing better gas mileage too?
Reply
Old Feb 29, 2008 | 07:36 PM
  #6  
Mels SS's Avatar
TECH Junkie
iTrader: (1)
 
Joined: Jun 2007
Posts: 3,159
Likes: 0
From: New Orleans La
Default

Cost!!
Reply
Old Feb 29, 2008 | 08:32 PM
  #7  
Ls4GXP's Avatar
On The Tree
 
Joined: Aug 2007
Posts: 190
Likes: 0
From: Oregon
Default

Did you tune out TM? If yes howz it handle from stop when gunning it ??
Reply
Old Feb 29, 2008 | 08:38 PM
  #8  
TiredGXP's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Dec 2007
Posts: 677
Likes: 0
From: Sherwood Park, AB
Default

I'm going to guess two black strips on the road about 60' long and lots of smoke

Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 29, 2008 | 09:10 PM
  #9  
Ls4GXP's Avatar
On The Tree
 
Joined: Aug 2007
Posts: 190
Likes: 0
From: Oregon
Default

Originally Posted by TiredGXP
I'm going to guess two black strips on the road about 60' long and lots of smoke

Why is your GXP tired?
Reply
Old Feb 29, 2008 | 10:31 PM
  #10  
TiredGXP's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Dec 2007
Posts: 677
Likes: 0
From: Sherwood Park, AB
Default

Originally Posted by Ls4GXP
Why is your GXP tired?
It's still sleepy, No real mods yet, just a tune and a drop-in k&n, but that will change later this spring.

The brown truck dropped off the HS 1.8 rockers this afternoon, the LS6 manifold conversion is coming along good, and the exhaust components and valvetrain upgrades will be ordered some time in March and April. That ought to wake things up a bit

Reply
Old Feb 29, 2008 | 11:21 PM
  #11  
Ls4GXP's Avatar
On The Tree
 
Joined: Aug 2007
Posts: 190
Likes: 0
From: Oregon
Default

Originally Posted by TiredGXP
It's still sleepy, No real mods yet, just a tune and a drop-in k&n, but that will change later this spring.

The brown truck dropped off the HS 1.8 rockers this afternoon, the LS6 manifold conversion is coming along good, and the exhaust components and valvetrain upgrades will be ordered some time in March and April. That ought to wake things up a bit

so your name should change this spring...........here let me help how about something like CocaneGXP.....that sounds like alot of energy/fast/power....................lol peace just bored and messing around.
Reply
Old Mar 1, 2008 | 02:21 PM
  #12  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

Originally Posted by Ls4GXP
Did you tune out TM? If yes howz it handle from stop when gunning it ??
They did adjust the TM for me - remove it all...nope!!! It ran me 200 and I can have them reload it anytime i want.

I never floor it from a stop anymore - that did not work before i got the tune (unless you want to spin) - what i noticed the most is how much hard it pulls the whole way up......i did 90 and did not notice it backing off!
Reply
Old Mar 1, 2008 | 02:21 PM
  #13  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

Originally Posted by EmersonHart13
You should come to thechicagogarage.org dyno day and get some, I am hoping to make it...

John
Chicago is a good 3 hours from me.....there is a place about 30 minutes from my house i plan on going to this spring!!!
Reply
Old Mar 1, 2008 | 02:23 PM
  #14  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

Originally Posted by marcus769
Are you noticing better gas mileage too?

I drove to joliet and back today going 75-80 mph and i got 25......around town my gas mileage is actually worse right now.....but I am getting on her pretty hard...i will let you know when i back off some! (if I back off)
Reply
Old Mar 1, 2008 | 03:01 PM
  #15  
EmersonHart13's Avatar
TECH Resident
iTrader: (3)
 
Joined: Jul 2007
Posts: 920
Likes: 0
Default

DOD still enabled correct?
Reply
Old Mar 1, 2008 | 06:08 PM
  #16  
SSWS6's Avatar
TECH Regular
 
Joined: Dec 2006
Posts: 447
Likes: 0
From: Stockton, CA
Default

Cool man how does it shift? 25mpg is not bad at all but I get about that with DOD disabled, so I hope you disabled yours too. I can get a lot more if I cruise at 55-60mph, but why buy an SS and drive like a grandma right?!
Reply
Old Mar 2, 2008 | 08:55 AM
  #17  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

Originally Posted by EmersonHart13
DOD still enabled correct?
yes...no performance gain removing it.
Reply
Old Mar 2, 2008 | 08:57 AM
  #18  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

Originally Posted by SSWS6
Cool man how does it shift? 25mpg is not bad at all but I get about that with DOD disabled, so I hope you disabled yours too. I can get a lot more if I cruise at 55-60mph, but why buy an SS and drive like a grandma right?!
no i did not disable it....but the dod help more than just hwy....so i wanted it mostly for the city driving.........I am sure i can get better....but it was windy also.
Reply
Old Mar 2, 2008 | 05:28 PM
  #19  
07gxpgray's Avatar
Thread Starter
Launching!
iTrader: (7)
 
Joined: Nov 2007
Posts: 271
Likes: 1
From: Peoria, IL
Default

did the same trip today and got 27mpg
Reply
Old Mar 4, 2008 | 01:36 PM
  #20  
IMPALA SS 07's Avatar
Launching!
 
Joined: Sep 2007
Posts: 225
Likes: 0
Default

im going next wednesday to a local dyno shop i just found out about....guy said it'll be $275 for the tune and dyno pulls so ill post up some #'s when i get it done
Reply



All times are GMT -5. The time now is 03:03 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE