PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

quick question.

Thread Tools
 
Search this Thread
 
Old Jan 9, 2007 | 02:19 PM
  #1  
obZidian's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Oct 2004
Posts: 2,890
Likes: 0
From: Miami, Fl.
Default quick question.

Been searching and need a few answers.

Im in need to tune my current build. I will most definitely be going past the 2 bar map area. I have a 98 pcm aka the suck!

What real options do i have. If i have to, which is more or a financial hurt, to go with a Big Stuff 3, then, well, i guess i have to. But im interested in doing this without going broke right now and need to tune past 15psi.

I know hptuners has the 2 bar setup, but what about efilive, couldn't really get a confirmation when i briefly visited their site. Car is a auto 4l80e 408ci single turbo T6.

Will it be less costly to swap the pcm to a 99+ then a big stuff 3? Also, i read that you need to swap out your fuel tank as well? Is this correct? IF that is the case, my options will have to be a nasty type of fuel tank with a sump option.

thanks!
Reply
Old Jan 9, 2007 | 02:46 PM
  #2  
foff667's Avatar
LS1TECH Sponsor
iTrader: (2)
 
Joined: Jul 2003
Posts: 7,986
Likes: 3
From: Clermont, FL
Default

HP Tuners is the ONLY software package that offers a 2 bar custom operating system for 98's, period.
Reply
Old Jan 9, 2007 | 02:51 PM
  #3  
Magnus's Avatar
LS1TECH Sponsor
iTrader: (4)
 
Joined: Nov 2001
Posts: 2,404
Likes: 0
From: Chicago, IL
Default

What is your max boost target?

Basically, if you use our 2bar solution, you lose tuning adjustibility between 15+ psi, but you can still tune for max boost..

What happens is as soon as you hit 15psi, you put in enough fuel for whatever max psi you tuned the vehicle for.. so if you tune it for 20 psi, then you would be dumping the same amount of fuel between 15 and 20psi..

Or you could add a 2.5bar MAP sensor and trick the tune a little bit.
Reply
Old Jan 9, 2007 | 03:36 PM
  #4  
obZidian's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Oct 2004
Posts: 2,890
Likes: 0
From: Miami, Fl.
Default

Im shooting for a max in the 24 psi range. This is a boost level that i feel will not be used all the time, however, if i were to guess, i would like to be able to sustain a powerful, safe tune in the 18-20psi level.

SO that 2.5bar is right up my alley... dont feel that i would need more than that. How would that work anyways?

thanks ya'll!!

Also, by tuning, theoretically, the same amount of fuel for anything above 15psi, i will in essense not be running at optimal or near that, rich in other words. Though rich is better than lean, in a way, will i be able to adjust my timing or will it be just like the fuel, a constant value for anthing above the 15psi range?
Reply




All times are GMT -5. The time now is 08:27 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