PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Lets talk PCM tuning and LS1-EDIT

Thread Tools
 
Search this Thread
 
Old Nov 13, 2001 | 10:46 AM
  #1  
Nine Ball's Avatar
Thread Starter
LS1Tech Co-Founder
20 Year Member
iTrader: (38)
 
Joined: Nov 2001
Posts: 32,987
Likes: 58
From: Houston, TX
Default Lets talk PCM tuning and LS1-EDIT

I know we have some potential sponsors logging in as members now, these are the guys with their hands on LS1-EDIT right now. I want some impressions of the software, and I want to know the full capabilities of this setup.

When are the single-use versions going to be available, and how much of a learning curve is this software going to require for an "average" tech guy versed in Autotap and tweaking MAF-Ts?

Anyone with technical knowledge on PCM tuning, jump in!

Tony
Reply
Old Nov 13, 2001 | 10:50 AM
  #2  
Trevor @ Texas Speed & Perf.'s Avatar
LS1Tech Premium Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
iTrader: (3)
 
Joined: Nov 2001
Posts: 4,399
Likes: 5
From: Lubbock, Texas
Default Re: Lets talk PCM tuning and LS1-EDIT

I'd be very interested in this as well! You never know what the future holds for my car. <img src="images/icons/grin.gif" border="0">
__________________
Reply
Old Nov 13, 2001 | 11:13 AM
  #3  
LS1powerN20's Avatar
TECH Enthusiast
 
Joined: Nov 2001
Posts: 670
Likes: 0
From: Houston/Lubbock, Tx.
Default Re: Lets talk PCM tuning and LS1-EDIT

I'm interested, let's see some more replies.
Reply
Old Nov 13, 2001 | 11:14 AM
  #4  
Fireball's Avatar
TECH Senior Member
20 Year Member
iTrader: (21)
 
Joined: Nov 2001
Posts: 8,484
Likes: 0
From: Cecil County Raceway!!!
Default Re: Lets talk PCM tuning and LS1-EDIT

we're going to get the shop edition before too long. Its already out for 99-00 cars I was told by carputing.

They just need to finish user documentation for the single licenses (so they say <img src="images/icons/rolleyes.gif" border="0"> )
Reply
Old Nov 13, 2001 | 11:50 AM
  #5  
66ImpalaLT1's Avatar
TECH Addict
 
Joined: Nov 2001
Posts: 2,551
Likes: 0
From: St Louis, MO
Default Re: Lets talk PCM tuning and LS1-EDIT

First some background info on me:
I'm a former user of LT1 Edit with my '94 Trans Am and a member of the lt1edit, gmecm, and diy_efi mailing lists. I've done a little reverse engineering on the 93 LT1 chip and tweaking for my '66.

I think the most important thing is to have a group of people that can learn from each other. The LT1 editor mailing list is awesome, not only do the lt1 edit authors post, but even respected tuners such as Mike Licht and Ed Wright. I'm sure there will be a similar list for ls1 edit and once the single user version starts shipping I'm sure we can generate enough traffic for another section on this board.

Ken (the author of the editor) is very responsive to suggestions, and if there is anything missing from the editor he'll add it.

Just last week Ken told me the price for LS1 Edit single user will be $550, while this is more than the original OBDI version of lt1 edit, its the sam e price as the OBDII lt1 editor and is well worth the money. It should be out by the end of the year.

To answer your original question:

Being versed in Autotap is a good first step, but tuning the tables in the pcm isnt going to be like turning the dials of a MAFT, but its rewards can be greater. WOT tuning has always been pretty easy in the pcm, part throttle is a little trickier. To help with this a clever lt1 editor user wrote a tool called VEmaster, which interprets the logs of a scantool and adjusts the volumetric efficiency tables in the pcm accordingly. Given time I'm sure a similar tool will be written for ls1 edit.

Its an exciting time to be into LS1's <img src="images/icons/smile.gif" border="0">

Eric

[ November 13, 2001: Message edited by: 66ImpalaLT1 ]</p>
Reply
Old Nov 13, 2001 | 11:56 AM
  #6  
CMNTMXR57's Avatar
TECH Fanatic
20 Year Member
 
Joined: Nov 2001
Posts: 1,355
Likes: 1
From: Chicago (Elgin), IL
Default Re: Lets talk PCM tuning and LS1-EDIT

I dunno, I FINALLY got my PCM sorted out thanks to Steve Cole and she's running stronger than ever, I'm not so sure you want to turn me loose with a program like LS1 edit on my PCM. <img src="images/icons/grin.gif" border="0">
Reply
Old Nov 13, 2001 | 03:13 PM
  #7  
JaSSon00's Avatar
Launching!
 
Joined: Nov 2001
Posts: 214
Likes: 0
From: Houston
Default Re: Lets talk PCM tuning and LS1-EDIT

can the shop version do everything that a custom program can do? what are the pros/cons of the two, im looking to bump my idle speed, raise rev limiter, adjust fuel/air ratio, whatever else can be done to maximize performance....can this be done with ls1 edit like ed's tuning?
Reply
Old Nov 13, 2001 | 03:22 PM
  #8  
99RedHawk's Avatar
TECH Apprentice
 
Joined: Nov 2001
Posts: 309
Likes: 0
From: houston
Default Re: Lets talk PCM tuning and LS1-EDIT

This is a good thread!! To add to some of the options, Steve Cole at TTS is coming out with a simulair system as I understand it...Faster than ATAP`s four frames per second and will have tuning capabilities..I spoke with him at the SEMA show about it... We still need more details though..

Tony, I heard a friend of yours has this ls1 edit program already or was I misinformed?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Nov 13, 2001 | 03:31 PM
  #9  
66ImpalaLT1's Avatar
TECH Addict
 
Joined: Nov 2001
Posts: 2,551
Likes: 0
From: St Louis, MO
Default Re: Lets talk PCM tuning and LS1-EDIT

[quote]Originally posted by 99RedHawk:
<strong>This is a good thread!! To add to some of the options, Steve Cole at TTS is coming out with a simulair system as I understand it...Faster than ATAP`s four frames per second and will have tuning capabilities..I spoke with him at the SEMA show about it... We still need more details though..</strong><hr></blockquote>

Yes, I also heard from a reliable source that TTS will be making DataMaster for OBDII and possibly an editor. Apparently DataMaster is in progress, but no work has been done toward any tuning software. I dont know how much I'm supposed to say...

Eric
Reply
Old Nov 13, 2001 | 03:32 PM
  #10  
kewlbrz's Avatar
On The Tree
 
Joined: Nov 2001
Posts: 191
Likes: 1
From: Dallas, TX
Default Re: Lets talk PCM tuning and LS1-EDIT

[quote]Originally posted by 99RedHawk:
<strong>This is a good thread!! To add to some of the options, Steve Cole at TTS is coming out with a simulair system as I understand it...Faster than ATAP`s four frames per second and will have tuning capabilities..I spoke with him at the SEMA show about it... We still need more details though..

Tony, I heard a friend of yours has this ls1 edit program already or was I misinformed?</strong><hr></blockquote>

I understand the EASE Scanner is the way to go over autotap. And that they make the GM Tech II?

Can anyone confirm?

[ November 13, 2001: Message edited by: kewlbrz ]</p>
Reply
Old Nov 13, 2001 | 04:23 PM
  #11  
Jake99SS's Avatar
TECH Resident
 
Joined: Nov 2001
Posts: 894
Likes: 0
From: Chicago, IL
Default Re: Lets talk PCM tuning and LS1-EDIT

So is LS1-Edit readily available for 99 & up cars right now? Who's carrying it?
Reply
Old Nov 13, 2001 | 04:45 PM
  #12  
66ImpalaLT1's Avatar
TECH Addict
 
Joined: Nov 2001
Posts: 2,551
Likes: 0
From: St Louis, MO
Default Re: Lets talk PCM tuning and LS1-EDIT

[quote]Originally posted by Jake99SS:
<strong>So is LS1-Edit readily available for 99 & up cars right now? Who's carrying it?</strong><hr></blockquote>

It is only available in a TUNER version. The $550 single user version will be available in a month or so.

Eric
Reply
Old Nov 13, 2001 | 06:33 PM
  #13  
Palm Beach Z's Avatar
On The Tree
 
Joined: Nov 2001
Posts: 192
Likes: 0
From: W.Palm Beach, Fl.
Default Re: Lets talk PCM tuning and LS1-EDIT

I just hope I'll be able to use it in addition to the custom tuning I have now from Mr. Wright. <img src="images/icons/rolleyes.gif" border="0">
Reply
Old Nov 13, 2001 | 06:35 PM
  #14  
Cool28's Avatar
Tire Smoking Tranny Blowing Director
iTrader: (2)
 
Joined: Nov 2001
Posts: 2,130
Likes: 1
From: Barto PA
Default Re: Lets talk PCM tuning and LS1-EDIT

Yea So how would we hook up a 99 comp to a 98? If it could be done cheaply I would do it then get ls1-edit. Is there a thing for picking injector sizes or do you have to just lean it out on your own?
Reply
Old Nov 13, 2001 | 06:53 PM
  #15  
wizkid's Avatar
Install Director
iTrader: (3)
 
Joined: Nov 2001
Posts: 1,002
Likes: 0
Default Re: Lets talk PCM tuning and LS1-EDIT

Now you have my attention. <img src="images/icons/grin.gif" border="0"> What do you mean by the VE tables in the PCM? Can you explain a little more detail on those?

Thanks

Eric

[quote]Originally posted by 66ImpalaLT1:
<strong> To help with this a clever lt1 editor user wrote a tool called VEmaster, which interprets the logs of a scantool and adjusts the volumetric efficiency tables in the pcm accordingly. Given time I'm sure a similar tool will be written for ls1 edit.

Its an exciting time to be into LS1's <img src="images/icons/smile.gif" border="0">

Eric

[ November 13, 2001: Message edited by: 66ImpalaLT1 ]</strong><hr></blockquote>
Reply
Old Nov 13, 2001 | 06:54 PM
  #16  
MTI's Avatar
MTI
Launching!
 
Joined: Nov 2001
Posts: 201
Likes: 0
From: Houston, TX
Default Re: Lets talk PCM tuning and LS1-EDIT

Hey guys! Great Topic!

I've been tuning LT1 PCM's in house for about 6 years now and have learned nearly everything there is to know about these computers. I recently acquired LS1 Edit for the '99 - '00 cars and let me tell you, there are some similarities but the LS1 PCM is extremely complex compared to the LT1. It is really a great program for people who wish to spend the necessary time learning about and tuning their cars. You will not be able to just "jump in" and start making adjustments to your PCM. The spark tables, knock retard and A/F ratio tables require a lot of time and patience to begin figuring out. Once you do though, fine tuning a car will be fairly easy. It's also nice to be able to select and turn off various codes to prevent any annoying check engine lights.

I've done several PCM's for cars in house now with various combinations and have seen some great results! I'll keep you guys better informed as I begin to master the program! <img src="images/icons/smile.gif" border="0">
Reply
Old Nov 13, 2001 | 06:56 PM
  #17  
wizkid's Avatar
Install Director
iTrader: (3)
 
Joined: Nov 2001
Posts: 1,002
Likes: 0
Default Re: Lets talk PCM tuning and LS1-EDIT

[quote]Originally posted by Cool28:
<strong>Yea So how would we hook up a 99 comp to a 98? If it could be done cheaply I would do it then get ls1-edit. Is there a thing for picking injector sizes or do you have to just lean it out on your own?</strong><hr></blockquote>

My guess you would have to have the wire harness getup from a 99 car also. I am not sure how much they would be but I can imagine they would run about $800.

Can someone confirm this? The 98's and 99's have different pin assignments for tach operation and such. I am not sure how that might cahnge the outlook on such a project.

Eric
Reply
Old Nov 13, 2001 | 07:01 PM
  #18  
Fireball's Avatar
TECH Senior Member
20 Year Member
iTrader: (21)
 
Joined: Nov 2001
Posts: 8,484
Likes: 0
From: Cecil County Raceway!!!
Default Re: Lets talk PCM tuning and LS1-EDIT

I agree we should have a forum or whatnot dedicated solely to LS1 edit once commercially available. It'd be nice to share experiences amongst ourselves.

We should have our Tuner version in a month or so...I plan on learning this program and hopefully spending some quality track time testing it out <img src="images/icons/smile.gif" border="0">
Reply
Old Nov 13, 2001 | 07:02 PM
  #19  
Patrick G's Avatar
LS1 Tech Administrator
20 Year Member
Photogenic
iTrader: (14)
 
Joined: Nov 2001
Posts: 8,246
Likes: 34
From: Victoria, TX
Default Re: Lets talk PCM tuning and LS1-EDIT

Wow, a post by "The Man" himself...welcome to the forum Jayson. I need to have you do me a program for my '98 SS...the tuning is just not "Wright".
__________________

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

Reply
Old Nov 13, 2001 | 07:16 PM
  #20  
Cool28's Avatar
Tire Smoking Tranny Blowing Director
iTrader: (2)
 
Joined: Nov 2001
Posts: 2,130
Likes: 1
From: Barto PA
Default Re: Lets talk PCM tuning and LS1-EDIT

Wow now were rolling <img src="images/icons/grin.gif" border="0"> . ANy more info you can share with us
Reply



All times are GMT -5. The time now is 11:53 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE