PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Ls2 SD tune help - VE overshooting

Thread Tools
 
Search this Thread
 
Old Aug 22, 2014 | 04:37 AM
  #1  
maxspeed05V's Avatar
Thread Starter
TECH Apprentice
iTrader: (4)
 
Joined: Apr 2010
Posts: 363
Likes: 0
Default Ls2 SD tune help - VE overshooting

Hey guys , im not new to LSx motors but new to tuning.

Im trying to attempt a speed density tune on my bolt on /stall cammed ls2 06 TBSS


My corrections keep overshooting, not sure when Im forgetting.

For the WOT open loop wide band portions I have the arf err cell min count set at 4.
During STFT tuning I had it at 25 but

Im using a AEM wideband, looking at my histograms im getting accurate a/f commands and accurate readings to the gauge.


My problem is every time I do copy -multi % special half the numbers overshoot.

What am I missing.

Files are attached here http://www.hptuners.com/forum/showth...s-overshooting
Thanks
Reply
Old Aug 22, 2014 | 04:18 PM
  #2  
RonSSNova's Avatar
8 Second Club
10 Year Member
Photogenic
Photoriffic
Top Answer: 1
iTrader: (3)
 
Joined: Aug 2011
Posts: 4,729
Likes: 814
From: Portland, OR
Default

I just do the changes cell by cell. I find that approx 70% or the error works well for the larger errors. 50% of the error for the lower errors.

You can also just chose the paste special mult by half over and over.

Ron
Reply




All times are GMT -5. The time now is 06:46 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