PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

lsx376 e85 and pump gas

Thread Tools
 
Search this Thread
 
Old Mar 27, 2011 | 08:25 PM
  #1  
bryan23's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Sep 2007
Posts: 84
Likes: 0
From: Santa barbara,ca
Default lsx376 e85 and pump gas

My thirdgen iroc is going in for tuning at the end of the month of april for tuning. My question is, can my car be tuned to run on pump gas and e85 gas? My current setup is a lsx376 crate motor with Cold Air Intake, longtubes, stock 42lb injectors, stock ls3 intake, a1000 fuel regulator, and a 340lph fuel pump. I believe I am using hp tuners and the car has a 411 ecm.
Reply
Old Mar 27, 2011 | 09:12 PM
  #2  
CancerJCC's Avatar
TECH Apprentice
iTrader: (4)
 
Joined: Jan 2010
Posts: 331
Likes: 0
From: GA
Default

No stoich for E85 is like 9.8 and gasoline is 14.7. What you could do is get a dual flash PCM from Frost and switch back and forth between the two tunes.
Reply
Old Mar 27, 2011 | 09:34 PM
  #3  
t/a98's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Aug 2008
Posts: 591
Likes: 1
From: greenvile, sc
Default

Actually, yes! The 411 PCM has provisions for a flex fuel sensor. Just wire it into your PCM. I just asked the same thing and was given tables and this info. I was told that the dual flash PCM is un needed in your case.

Ps why did you tell him something that isn't true when you didnt know yourself?
Reply
Old Mar 27, 2011 | 09:39 PM
  #4  
t/a98's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Aug 2008
Posts: 591
Likes: 1
From: greenvile, sc
Default

https://ls1tech.com/forums/pcm-diagn...e-mod-ecu.html
Reply
Old Mar 27, 2011 | 11:17 PM
  #5  
bryan23's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Sep 2007
Posts: 84
Likes: 0
From: Santa barbara,ca
Default

Originally Posted by CancerJCC
No stoich for E85 is like 9.8 and gasoline is 14.7. What you could do is get a dual flash PCM from Frost and switch back and forth between the two tunes.
I thought stoich was 8.9 to 1, maybe you got the numbers backwards.

Originally Posted by t/a98
Actually, yes! The 411 PCM has provisions for a flex fuel sensor. Just wire it into your PCM. I just asked the same thing and was given tables and this info. I was told that the dual flash PCM is un needed in your case.

Ps why did you tell him something that isn't true when you didnt know yourself?
That sounds great, It seems like e85 is so much cheaper out here in california than regular pump gas. It is 2.79 for e85 and 4.30 for 91.
Reply
Old Mar 28, 2011 | 07:56 AM
  #6  
t/a98's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Aug 2008
Posts: 591
Likes: 1
From: greenvile, sc
Default

Yea you run about 30% more but it usually makes sense money wise and if your tune is right there can be about 5% increase in power. Instant 15-25 horses!
Reply




All times are GMT -5. The time now is 03:19 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