LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

Boost and a stock Mass Air

Thread Tools
 
Search this Thread
 
Old Nov 27, 2004 | 10:46 PM
Share
  #1  
WS-6 SC's Avatar
WS-6 SC
Thread Starter
Teching In
 
Joined: Oct 2004
Posts: 12
Likes: 0
Default Boost and a stock Mass Air
How much boost can a stock Ls-1 Mass Air hold. I am running 12psi of boost and on my tune, I'm good down low, but I am going lean around 5000 rpm no matter how much fuel I add in and my idle sucks. I thinking the problem is the mass air can't flow that much boost. Any suggestion? Thanks for any comments in advance.
Reply
0
Old Nov 28, 2004 | 12:47 AM
Share
  #2  
hellbents10's Avatar
hellbents10
LS1Tech Sponsor
iTrader: (10)
 
Joined: Mar 2004
Posts: 4,439
Likes: 4
From: Spring Lake, MI
Default
You are probibly running out. Your to the point of being blind right now. PE vs. RPM is about the only way to tune from here on.
Reply
0
Old Nov 28, 2004 | 11:04 AM
Share
  #3  
ChevyNo1's Avatar
ChevyNo1
TECH Resident
 
Joined: Jan 2002
Posts: 956
Likes: 0
From: Phoenix, AZ
Default
May be a stupid question, but is your fuel system up to the task? What are your specs? Could be maxing out the pump or injectors, or even fuel lines/rails.

- Dug
Reply
0
Old Nov 28, 2004 | 11:25 AM
Share
  #4  
WS-6 SC's Avatar
WS-6 SC
Thread Starter
Teching In
 
Joined: Oct 2004
Posts: 12
Likes: 0
Default
Originally Posted by ChevyNo1
May be a stupid question, but is your fuel system up to the task? What are your specs? Could be maxing out the pump or injectors, or even fuel lines/rails.

- Dug
I've Got flow matched 55 pound injectors and a racetronix fuel pump. Stock fuel rails ,but I thought they were good up to 700hp. The blower is a procharger D1sc intercooled with 12psi of boost. Its making 520rwhp at only 5000rmp with this new tune(dialbo tune).It could be the tune dialbo is sending because they have not got one right yet but the one constance is that its starts going lean around 4500rmp. I was thinking of trying to get a 85 mil Z06 mass air and see if that helps. But the tuner thinks the mass air is running out.




2002 WS-6 M6
Last edited by WS-6 SC; Nov 28, 2004 at 11:35 AM.
Reply
0
Old Nov 28, 2004 | 02:41 PM
Share
  #5  
qqwqeqwrqwqtq's Avatar
qqwqeqwrqwqtq
FormerVendor
 
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
Default
Originally Posted by WS-6 SC
But the tuner thinks the mass air is running out.
2002 WS-6 M6

Well, the maf sensor is maxed out in terms of being able to register airflow, but it is by no means a restriction in the system.

Watch fuel pressure and inj pw during a run and you will know why it's going lean.
Reply
0
Old Nov 28, 2004 | 02:53 PM
Share
  #6  
hellbents10's Avatar
hellbents10
LS1Tech Sponsor
iTrader: (10)
 
Joined: Mar 2004
Posts: 4,439
Likes: 4
From: Spring Lake, MI
Default
Right, no matter what mass air sensor weather it be stock or a 85 will do you no good. The MAF can no longer register said amounts of air.
Reply
0
Old Nov 28, 2004 | 03:03 PM
Share
  #7  
Slowhawk's Avatar
Slowhawk
LS1Tech Sponsor
iTrader: (12)
 
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Default
Looks like a tuning/fueling problem.Your not running out of Mass air yet.
Reply
0

Trending Topics

Old Nov 28, 2004 | 04:12 PM
Share
  #8  
ChevyNo1's Avatar
ChevyNo1
TECH Resident
 
Joined: Jan 2002
Posts: 956
Likes: 0
From: Phoenix, AZ
Default
Yup, sounds like they need to change the tune in PE vs RPM from 4500 up . . .

- Dug
Reply
0
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 Nov 28, 2004 | 04:55 PM
Share
  #9  
WS-6 SC's Avatar
WS-6 SC
Thread Starter
Teching In
 
Joined: Oct 2004
Posts: 12
Likes: 0
Default
Originally Posted by Slowhawk
Looks like a tuning/fueling problem.Your not running out of Mass air yet.
I think its a tuning problem with dialbo tune. They have not got one right yet.

Thanks guys for your imput.
Reply
0
Old Nov 28, 2004 | 07:21 PM
Share
  #10  
cablebandit's Avatar
cablebandit
9 Second Club
20 Year Member
iTrader: (37)
 
Joined: Nov 2001
Posts: 7,903
Likes: 1
From: Cleveland, OH
Default
tune like the others said...mass airflow will register 550 horsepower
Reply
0
Old Nov 28, 2004 | 08:08 PM
Share
  #11  
BlwnTA's Avatar
BlwnTA
7 Second Club
iTrader: (18)
 
Joined: Mar 2004
Posts: 790
Likes: 0
From: Cincinnati, Ohio
Default
I agree with most everything said, but also understand your pushing the limit on the stock rails (deadheaded). Fuel is probably being consumed faster than your getting it to and thru the rails. You made need to get after market rails with an FPR and return set-up.
Reply
0
Old Nov 28, 2004 | 10:17 PM
Share
  #12  
IMD's Avatar
IMD
Banned
iTrader: (10)
 
Joined: Sep 2004
Posts: 567
Likes: 0
From: Texas
Default
horseshit, i used a stock LS1 mass air meter on another project, with a translator, and ran about 24 psi, and it worked perfectly.
Reply
0
Old Nov 28, 2004 | 10:41 PM
Share
  #13  
MelloYellow's Avatar
MelloYellow
TECH Fanatic
 
Joined: Nov 2001
Posts: 1,986
Likes: 1
From: Centrifugal City
Default
Lol
.
.
.
Reply
0
Old Nov 28, 2004 | 11:09 PM
Share
  #14  
Rick@Synergy's Avatar
Rick@Synergy
Banned
iTrader: (5)
 
Joined: Dec 2001
Posts: 1,461
Likes: 0
From: Fremont, Ca
Default
You can go far with the stock maf. We are close to 700 rear wheel with it. I would check fuel pressure or your injectors first before the maf.
Reply
0
Old Nov 28, 2004 | 11:22 PM
Share
  #15  
hellbents10's Avatar
hellbents10
LS1Tech Sponsor
iTrader: (10)
 
Joined: Mar 2004
Posts: 4,439
Likes: 4
From: Spring Lake, MI
Default
Like you said with a translator.
Reply
0
Back to Subforum
Forced Induction
View Next Unread
Not getting the boost I should be getting.




Advanced Search

All times are GMT -5. The time now is 09:04 AM.

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