...

Go Back   Lateral-g Forums > Technical Discussions > EFI and Forced Induction
User Name
Password



Reply
 
Thread Tools Display Modes
  #21  
Old 05-17-2010, 09:55 PM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Scottsdale, AriDzona
Posts: 20,741
Thanks: 504
Thanked 1,080 Times in 388 Posts
Default

I would also expect the FAST EZ EFI to continue to tune itself and bring the A/F ratios in better and better. They are "set" in the programmer at 12.8 WOT - and the pull I posted above - shows 13.24 @ 4600 -- a little lean for torque production. This will tune itself as the ECU builds better VE tables. At 6000 rpms it was making 12.52 A/F

When Tom Nelson and I discussed this build - he said that the 8 stacks tend to add air so quickly - that it's hard for the fuel to catch up. I'm sure that having watched how quickly the ECM learned and adjusted from first start up to making some pulls -- that it will fatten the A/F as it learns more. But we felt - since the motor would run and behave differently as installed in the Nomad - rather than the dyno - there was little point in in continuing to flog the motor just to bring these to perfection.

The EZ EFI goes into learn mode as soon as the ECT hits 140* -- so every time you drive - it's honing in on the perfect A/F ratios...
Reply With Quote
  #22  
Old 05-17-2010, 10:02 PM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Scottsdale, AriDzona
Posts: 20,741
Thanks: 504
Thanked 1,080 Times in 388 Posts
Default

Here's something else I was impressed with - and again - given the little amount of actual time to have the FAST EZ EFI learn...

Check out these EGT's

Starting with #1 @ 5000 RPM

1146 1045 1078 1050 1013 1087 1052 1090
Reply With Quote
  #23  
Old 05-17-2010, 11:07 PM
Vegas69's Avatar
Vegas69 Vegas69 is offline
Senior Member
 
Join Date: Dec 2006
Posts: 8,692
Thanks: 87
Thanked 215 Times in 120 Posts
Default

It's definitely making some killer torque. It will be a great driver that will move that Nomad with ease.
__________________
Todd
Reply With Quote
  #24  
Old 05-18-2010, 08:55 AM
BBC69Camaro's Avatar
BBC69Camaro BBC69Camaro is offline
Senior Member
 
Join Date: Dec 2007
Location: Los Angeles, CA
Posts: 572
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Greg nice flat torque curve, seems like you had the same goal I did when I choose my setup Been thinking about EZ-EFI as well, thanks for sharing!
Reply With Quote
  #25  
Old 05-18-2010, 09:25 AM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Scottsdale, AriDzona
Posts: 20,741
Thanks: 504
Thanked 1,080 Times in 388 Posts
Default

I just posted a new thread -- FAST EZ EFI under the EFI section

I'm 100% positively sold on this system -- PROVIDED you do your homework and supply some good vacuum signal for the MAP sensor etc. Super simple - super effective!
Reply With Quote
  #26  
Old 05-18-2010, 11:49 AM
BBC69Camaro's Avatar
BBC69Camaro BBC69Camaro is offline
Senior Member
 
Join Date: Dec 2007
Location: Los Angeles, CA
Posts: 572
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Hey Greg, you do anything with your fuel system for the setup?
Reply With Quote
  #27  
Old 05-18-2010, 11:53 AM
Vegas69's Avatar
Vegas69 Vegas69 is offline
Senior Member
 
Join Date: Dec 2006
Posts: 8,692
Thanks: 87
Thanked 215 Times in 120 Posts
Default

Quote:
Originally Posted by GregWeld View Post
I just posted a new thread -- FAST EZ EFI under the EFI section

I'm 100% positively sold on this system -- PROVIDED you do your homework and supply some good vacuum signal for the MAP sensor etc. Super simple - super effective!
Cart>Horse
__________________
Todd
Reply With Quote
  #28  
Old 05-18-2010, 12:46 PM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Scottsdale, AriDzona
Posts: 20,741
Thanks: 504
Thanked 1,080 Times in 388 Posts
Default

Quote:
Originally Posted by BBC69Camaro View Post
Hey Greg, you do anything with your fuel system for the setup?
No -- I already had EFI - so no changes - only change was the "rebuild" - intake - Computer.

This system does require a vacuum referenced fuel pressure regulator - and a return line just FYI.
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 02:49 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Lateral-g.net