PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

EFI LIve 2 step function

Thread Tools
 
Search this Thread
 
Old Mar 26, 2006 | 02:19 PM
  #1  
80superbu's Avatar
Thread Starter
TECH Apprentice
iTrader: (8)
 
Joined: Nov 2005
Posts: 311
Likes: 0
From: Colorado Springs
Default EFI LIve 2 step function

I posted this on the EFI live forum but thought it may get more response here

I didn't realize until yesterday that there was a 2 step function on this program. Anyone here that uses it? I haven't bought EFI Live yet but I think this just saved me some money on a 2 step controller and/ or a transbrake.
Is it used just like an aftermarket controller and how would this work if I also drive the car on the street? would I have to go back in a turn it off..I guess?

Thanks
Reply
Old Mar 27, 2006 | 02:39 AM
  #2  
cantdrv65's Avatar
TECH Junkie
iTrader: (3)
 
Joined: Nov 2001
Posts: 3,202
Likes: 0
From: TEXASS
Post

Yes it is a custom OS...But dont ask me for details Im a newbie with live...
Reply
Old Mar 27, 2006 | 08:30 AM
  #3  
ace68's Avatar
12 Second Club
iTrader: (15)
 
Joined: Jun 2004
Posts: 1,479
Likes: 0
From: Rhode Island
Default

it's a switch that you have to wire in and works in a custom tune so you will need the comercial version to install it. I have not used it yet but will try it this year. I was thinking about installing it last year but it was called a valet switch then now it can be used as a two step so tha's cool. I
Reply
Old Mar 27, 2006 | 07:50 PM
  #4  
cantdrv65's Avatar
TECH Junkie
iTrader: (3)
 
Joined: Nov 2001
Posts: 3,202
Likes: 0
From: TEXASS
Post

Yeah you can also use the same input for the nitrous custom OS the way I understand....
Reply
Old Mar 27, 2006 | 08:20 PM
  #5  
80superbu's Avatar
Thread Starter
TECH Apprentice
iTrader: (8)
 
Joined: Nov 2005
Posts: 311
Likes: 0
From: Colorado Springs
Default

This was posted by Ross on the EFI website

Problem is, it uses the factory fuel cut routine, not spark cut, so no staging duels as it leans out pretty bad.
loks like it may not be right for a racing setup
Reply
Old Mar 29, 2006 | 08:00 AM
  #6  
Fran D's Avatar
TECH Regular
20 Year Member
iTrader: (5)
 
Joined: Nov 2001
Posts: 422
Likes: 0
From: Washington Crossing, PA
Default

Originally Posted by 80superbu
This was posted by Ross on the EFI website



loks like it may not be right for a racing setup
Well...the fuel is turned off to the cylinder, so there would be no combustion. Unless someone has figured out how to ignite air, leanness would not enter into it. It'd just be a wasted spark.

Remember, an SI combustion requires air, fuel and spark. Take away one, and you're left with... the other two.
Reply
Old Apr 25, 2006 | 11:39 AM
  #7  
TPY2KWS6's Avatar
Launching!
20 Year Member
iTrader: (1)
 
Joined: Mar 2003
Posts: 275
Likes: 0
From: Phila PA
Default

Anymore info on this?
Reply
Old Apr 25, 2006 | 11:47 AM
  #8  
MrDude_1's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Feb 2002
Posts: 3,368
Likes: 5
From: Charleston, SC
Default

Originally Posted by Fran D
Well...the fuel is turned off to the cylinder, so there would be no combustion. Unless someone has figured out how to ignite air, leanness would not enter into it. It'd just be a wasted spark.

Remember, an SI combustion requires air, fuel and spark. Take away one, and you're left with... the other two.

no fuel = no burn in the exhaust... no burn = slower/less turbo spooling...

with a conventional 2step, the fuel ends up burning in the exhaust, so the volume in the exhaust is still like WOT, keeping that turbo spooled up good..

this 2step only sounds like a solution for N/A guys.. mostly manuals, but i suppose someone with a large stall and a transbrake could use it to launch from a less then true stall RPM...
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 May 14, 2006 | 10:09 AM
  #9  
SuperC1's Avatar
TECH Enthusiast
iTrader: (4)
 
Joined: Jun 2003
Posts: 551
Likes: 0
From: MS
Default

Originally Posted by MrDude_1
no fuel = no burn in the exhaust... no burn = slower/less turbo spooling...

with a conventional 2step, the fuel ends up burning in the exhaust, so the volume in the exhaust is still like WOT, keeping that turbo spooled up good..

this 2step only sounds like a solution for N/A guys.. mostly manuals, but i suppose someone with a large stall and a transbrake could use it to launch from a less then true stall RPM...
What's burning the fuel if there is no spark?
Reply
Old May 14, 2006 | 10:17 AM
  #10  
SScam68's Avatar
11 Second Club
iTrader: (20)
 
Joined: Sep 2002
Posts: 2,684
Likes: 3
From: Albuquerque NM - The Land of 8000ft DA
Default

Originally Posted by SuperC1
What's burning the fuel if there is no spark?
The amount of cylinders that fire off are cut down to maintain a certain RPM, but every other one still does fire.
Reply
Old May 14, 2006 | 10:52 AM
  #11  
SuperC1's Avatar
TECH Enthusiast
iTrader: (4)
 
Joined: Jun 2003
Posts: 551
Likes: 0
From: MS
Default

oh.. ok, thats sounds good, I guess.
Reply
Old Aug 17, 2010 | 05:35 PM
  #12  
1999FirehawkLS1's Avatar
TECH Enthusiast
iTrader: (21)
 
Joined: Nov 2008
Posts: 633
Likes: 0
Default

Would this wrk well on mt set up?...Mods in Sig
Reply




All times are GMT -5. The time now is 05:44 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