PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Tuning for a conversion

Thread Tools
 
Search this Thread
 
Old Sep 17, 2006 | 10:25 AM
  #1  
Quick Double Nickel's Avatar
Thread Starter
Launching!
iTrader: (5)
 
Joined: Sep 2004
Posts: 275
Likes: 0
From: Phoenix, Arizona
Default Tuning for a conversion

I'm planning a LSx conversion into my LX Mustang soon, but need a few questions answered about tuning needed to make it work.

1. If I choose to go with a 5.3 or 6.0 truck motor that originally came with an automatic can the 5.3 or 6.0 PCM be reflashed to work with a F-body T-56?

2. Or, alternatively, if I decide to use the T-5 out of the Mustang and not use a GM transmission, what items would I need to remove from the PCM? I'm thinking the VSS is the only item that gives input to the PCM, but maybe there is something else.

3. How easy or dificult is all of this to do? Would all these necessary changes be doable by somebody with reasonable knowledge of the LSx PCM, or is this type of stuff in the hidden abyss of PCM tuning?
Reply
Old Sep 17, 2006 | 11:21 AM
  #2  
RedHardSupra's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,904
Likes: 2
From: Laurel, MD
Default

1. yes
2. manual trans is really not communicating with the PCM, so all manuals should be equally ignored, from PCM's perspective
3. the process is just a full write of the same year, but manual trans tune onto the PCM, and then tune as usual. very easy.
Reply
Old Sep 17, 2006 | 12:44 PM
  #3  
Quick Double Nickel's Avatar
Thread Starter
Launching!
iTrader: (5)
 
Joined: Sep 2004
Posts: 275
Likes: 0
From: Phoenix, Arizona
Default

Wow, GM did an awesome job of allowing for such a diverse adaptability of the computer within the varying number of combinations out there, and make it so easy to swith between all of them. This is great news. Thanks RedHardSupra.
Reply




All times are GMT -5. The time now is 01:16 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