Notices
E85 / Ethanol This section is dedicated to tuning with ethanol.

Tephra Patch and E85/91 octane Injector Scaling

Thread Tools
 
Search this Thread
 
Old Apr 23, 2009 | 01:20 AM
  #1  
nj1266's Avatar
Thread Starter
Evolved Member
iTrader: (6)
 
Joined: Nov 2004
Posts: 3,254
Likes: 13
From: USA
Tephra Patch and E85/91 octane Injector Scaling

I noticed that the tephra patch ver 5.10 for switching between e85 and 91 octane only has one injector scaling and injector latency table.

I set the sacling for my 1000 cc injectors at 835 for 91 octane. If I want to run e85, then the scaling should be around 585 (30% less). Now if I use the patch and want to switch back to 91, then the sacling would stay at 585 and the car would run really rich on 91 octane.

Shouldn't there be a separate scaling/latency table in the patch for e85? Am I not finding it?

How do you guys get around this problem?

TIA
Reply
Old Apr 23, 2009 | 01:27 AM
  #2  
nj1266's Avatar
Thread Starter
Evolved Member
iTrader: (6)
 
Joined: Nov 2004
Posts: 3,254
Likes: 13
From: USA
nevermind....I found the separate scaling. I just did not look hard enough
Reply
Old Apr 8, 2011 | 12:08 PM
  #3  
10isace's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (12)
 
Joined: Nov 2008
Posts: 1,058
Likes: 16
From: East of the Rockies
Originally Posted by nj1266
nevermind....I found the separate scaling. I just did not look hard enough
I see the separate scaling, but is there a separate latency too? Is there a need for it?
Reply
Old Apr 8, 2011 | 12:24 PM
  #4  
andrewzaragoza's Avatar
Evolved Member
iTrader: (6)
 
Joined: Mar 2007
Posts: 1,019
Likes: 2
From: DFW, TX
no separate latency. if your latency is dialed in its the scaling that should only change.
Reply
Old Apr 12, 2011 | 10:28 AM
  #5  
10isace's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (12)
 
Joined: Nov 2008
Posts: 1,058
Likes: 16
From: East of the Rockies
Originally Posted by andrewzaragoza
no separate latency. if your latency is dialed in its the scaling that should only change.
Thanks! When dialing in latencies, do I just adjust at the volts I see the car at, 13-14V?
Reply
Old Apr 12, 2011 | 01:08 PM
  #6  
Benja's Avatar
Evolved Member
 
Joined: Sep 2006
Posts: 800
Likes: 0
From: Newcastle, Australia.
Yes. 11 and 14V are usually the two that you'll have to adjust.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
edsct9a
ECU Flash
9
Jun 27, 2017 05:16 AM
EvilDSM97
General Engine Management / Tuning Forum
3
Jun 25, 2016 06:55 AM
BarryC
ECU Flash
9
Mar 22, 2009 07:07 AM
Tuner@Swift
ECU Flash
14
Aug 22, 2008 01:47 PM
Jim in Tucson
ECU Flash
11
Aug 2, 2008 08:05 PM




All times are GMT -7. The time now is 08:41 AM.