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

Any dyno numbers from the headers?

Thread Tools
 
Search this Thread
 
Old Apr 24, 2010 | 12:34 PM
  #41  
ImpSS07's Avatar
TECH Resident
iTrader: (3)
 
Joined: Feb 2009
Posts: 933
Likes: 0
From: Houston, Tx
Default

I think I read on the Turbo build threads that stock MAF's are good up 450-500hp. I could have read wrong but I think thats also why most say the JET MAF was a waste of money.
Reply
Old Apr 24, 2010 | 02:52 PM
  #42  
AlabamaGuy's Avatar
TECH Addict
iTrader: (5)
 
Joined: Jun 2009
Posts: 2,802
Likes: 0
Default

Originally Posted by ImpSS07
I think I read on the Turbo build threads that stock MAF's are good up 450-500hp. I could have read wrong but I think thats also why most say the JET MAF was a waste of money.
In large part because it's made by JET. lmao
Reply
Old Apr 24, 2010 | 03:00 PM
  #43  
Vectus's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2009
Posts: 646
Likes: 0
From: Sa, TX
Default

Originally Posted by ImpSS07
I think I read on the Turbo build threads that stock MAF's are good up 450-500hp. I could have read wrong but I think thats also why most say the JET MAF was a waste of money.
IIRC Supercar might of mentioned up to 600 when i asked about the jet products...

EDIT: actually it was Mgpeagle.
https://ls1tech.com/forums/ls4-front...49836-jet.html
Reply
Old Apr 24, 2010 | 08:42 PM
  #44  
JDMC5's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Feb 2009
Posts: 1,366
Likes: 0
From: Highland, MI
Default

Originally Posted by Sittingmongoose
The intake and maf arent really restrictions till we start putting a lot more power down. And yes i know a more aggressive cam would help but i wonder how much considering my car didn't respond to the ls6 cam. I want the shop to do it because i know they will do a great job plus i work everyday and cant be without my car for the 4 or 5 days it would require for me and my friends to do it. Also i have a feeling that whole intake crossover issue and welding of the downpipe will require a little more know how than i have.
I hear ya, I work everyday as well. As I recall you did the cam before the intake........that's why it didn't respond to the cam.
Reply
Old Apr 24, 2010 | 08:47 PM
  #45  
JDMC5's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Feb 2009
Posts: 1,366
Likes: 0
From: Highland, MI
Default

Originally Posted by TiredGXP
Inner diameter of the LS4 maf is 78mm. I don't think it's the limiting factor.

thanks, yeah that's just about the same size as the TB, it's probably not restrictive, at least not worth the hassle or cost of replacing.
Reply




All times are GMT -5. The time now is 10:02 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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