PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Anything I can do for tuning w/o ls1 edit

Thread Tools
 
Search this Thread
 
Old Sep 23, 2002 | 01:45 PM
  #1  
Willwork4mods's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Apr 2002
Posts: 145
Likes: 0
From: Keller, TX
Default Anything I can do for tuning w/o ls1 edit

I finally autotapped my car yesterday and some of the things were waaaay outta whack.

IAC counts were 70-80 (sugring to 135)
Fuel Trims were running lean on both banks.
Timing advance was around 37 degrees.

The car last time i dyno tuned was setup for a B1 with no heads and macs. We advanced the timing to around 7 (my car seemed to like more timing).
Now, that i have the heads and mms 229 cam.. these are the results.. is there anything i can do until i can afford another dyno tune?? or someone to use ls1edit on her.???

thanks
devin
Reply
Old Sep 23, 2002 | 03:05 PM
  #2  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: Anything I can do for tuning w/o ls1 edit

Lean: Remove ported MAF ends if you have them. That will help reduce your timing too.
IAC: If your idle speed is pretty close to your desired idle speed, enlarge the TB hole by 1/32". You can also turn the idle set screw a 1/2 turn open.
Timing: Reverse timing tricker. Use a resister inline from your IAT to make the PCM think the air temp is 75*C or higher (I forgot the size; the FI guys would know). That will pull about 3* at WOT.
Reply
Old Sep 23, 2002 | 05:03 PM
  #3  
Willwork4mods's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Apr 2002
Posts: 145
Likes: 0
From: Keller, TX
Default Re: Anything I can do for tuning w/o ls1 edit

Thanks Ragtop.. i'll see if someone will swap my ported maf end s for stock. and adjust the TB a little. I'll see if someposts about the resistor size is someone else posts up.
thanks again.
Devin.
Reply
Old Sep 23, 2002 | 09:33 PM
  #4  
StevieZ's Avatar
11 Second Club
iTrader: (3)
 
Joined: Mar 2002
Posts: 1,794
Likes: 1
From: Montreal
Default Re: Anything I can do for tuning w/o ls1 edit

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Lean: Remove ported MAF ends if you have them. That will help reduce your timing too. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I thought that if you removed the ported MAF ends that it would increase timing??????
Reply
Old Sep 24, 2002 | 08:06 AM
  #5  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: Anything I can do for tuning w/o ls1 edit

With ported ends, the computer perceives less load and can use higher timing.
Reply




All times are GMT -5. The time now is 06:56 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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