HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Class Racer Builds


Reply
 
Thread Tools Display Modes
Old 01-08-2021, 11:41 AM   #161
Ron Middleton
Member
 
Join Date: Jan 1970
Location: Jackson, Ms.
Posts: 350
Likes: 183
Liked 10 Times in 4 Posts
Default Re: Not for Nuthin' But Close!

For what it's worth I just purchased a 2004 Sunfire 2.2L to attempt to do like Billy. Wish I had his experience and I wouldn't be so uncertain about my abilities to make it run that well. We'll see how this goes but it looks like fun.
__________________
#4892 J/SA. We are what we repeatedly do. Excellence then, is not an act, but a habit.”
- Aristotle
Ron Middleton is offline   Reply With Quote
Old 01-08-2021, 05:27 PM   #162
Billy Nees
VIP Member
 
Join Date: Oct 2002
Location: On a hilltop in Pa.
Posts: 4,212
Likes: 3,066
Liked 6,730 Times in 1,512 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by Ron Middleton View Post
For what it's worth I just purchased a 2004 Sunfire 2.2L to attempt to do like Billy. Wish I had his experience and I wouldn't be so uncertain about my abilities to make it run that well. We'll see how this goes but it looks like fun.
Good deal! Don't forget to do a "Build Thread" or add to this one!
BTW, buddy-up to a computer literate kid!!!
__________________
Billy Nees 1188 STK, SS

Make tech "TECH" again!
Billy Nees is offline   Reply With Quote
Old 01-08-2021, 05:51 PM   #163
Ron Middleton
Member
 
Join Date: Jan 1970
Location: Jackson, Ms.
Posts: 350
Likes: 183
Liked 10 Times in 4 Posts
Default Re: Not for Nuthin' But Close!

BTW, buddy-up to a computer literate kid!!!

IO hope my 30 year old delivery guy here at the store is one. At least he seems to be but baby on the way not sure if his wife will give him enough space to get away to fool with this.
__________________
#4892 J/SA. We are what we repeatedly do. Excellence then, is not an act, but a habit.”
- Aristotle
Ron Middleton is offline   Reply With Quote
Old 01-08-2021, 05:53 PM   #164
Ron Middleton
Member
 
Join Date: Jan 1970
Location: Jackson, Ms.
Posts: 350
Likes: 183
Liked 10 Times in 4 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by Billy Nees View Post
Good deal! Don't forget to do a "Build Thread" or add to this one!
BTW, buddy-up to a computer literate kid!!!
See Billy. I'm not even good with posting on this board by my previous post. LOL. I wanted to do the Neon thing but found the Sunfire first so here it goes.
__________________
#4892 J/SA. We are what we repeatedly do. Excellence then, is not an act, but a habit.”
- Aristotle
Ron Middleton is offline   Reply With Quote
Liked
Old 01-15-2021, 08:51 AM   #165
JakeB23
Junior Member
 
Join Date: Nov 2018
Posts: 10
Likes: 0
Liked 16 Times in 3 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by Billy Nees View Post
Fourth pass, Doug took out a bit more fuel, 15.158/89.57.
Fifth pass, took out a bit more fuel, 15.130/89.43.
Last pass, we charged the battery and got the car really cooled down. Doug also took out some more fuel and for the last pass of the year, 15.085/ 89.88!
So are you still running the car in Open Loop? Correct me if I am wrong, but this seems to be the simplest way to change the fuel tune, leaving out many other parameters in closed loop?
JakeB23 is offline   Reply With Quote
Old 01-15-2021, 09:22 AM   #166
Billy Nees
VIP Member
 
Join Date: Oct 2002
Location: On a hilltop in Pa.
Posts: 4,212
Likes: 3,066
Liked 6,730 Times in 1,512 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by JakeB23 View Post
So are you still running the car in Open Loop? Correct me if I am wrong, but this seems to be the simplest way to change the fuel tune, leaving out many other parameters in closed loop?
Yes open loop.
__________________
Billy Nees 1188 STK, SS

Make tech "TECH" again!
Billy Nees is offline   Reply With Quote
Old 01-15-2021, 01:14 PM   #167
Glenn Briglio
VIP Member
 
Glenn Briglio's Avatar
 
Join Date: Nov 2002
Location: Massapequa Park,NY
Posts: 1,205
Likes: 1,719
Liked 819 Times in 263 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by Billy Nees View Post
Yes open loop.
Billy can you set the fuel/O2 and timing tables to be able to run in closed loop?
__________________
1989 Camaro Iroc-Z I/SA B&B Auto Machine Shop.
Glenn Briglio is offline   Reply With Quote
Old 01-15-2021, 02:33 PM   #168
Doug Hoven
Member
 
Join Date: Feb 2018
Posts: 179
Likes: 166
Liked 743 Times in 144 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by Glenn Briglio View Post
Billy can you set the fuel/O2 and timing tables to be able to run in closed loop?
I would love to try it, but the issue is that there is no way to change what the desired O2 reading is. When it was in closed loop, it was commanding as rich as 11.8:1 by the end of the track, so it was decided that giving the tuner ultimate control was better than letting the ecu do its thing.
Doug Hoven is offline   Reply With Quote
Old 01-15-2021, 02:38 PM   #169
JakeB23
Junior Member
 
Join Date: Nov 2018
Posts: 10
Likes: 0
Liked 16 Times in 3 Posts
Default Re: Not for Nuthin' But Close!

So, if I set up to run Open loop, does it still adjust timing based on IAC and ECT but not oxygen?
JakeB23 is offline   Reply With Quote
Old 01-15-2021, 02:45 PM   #170
Doug Hoven
Member
 
Join Date: Feb 2018
Posts: 179
Likes: 166
Liked 743 Times in 144 Posts
Default Re: Not for Nuthin' But Close!

Quote:
Originally Posted by JakeB23 View Post
So, if I set up to run Open loop, does it still adjust timing based on IAC and ECT but not oxygen?
This car I was able to tune around any timing adjustments the computer tried to make. I set up the base spark table to a point where as soon as you give it full throttle, it would be at 29 degrees. It also has a "minimum spark vs. rpm" table I was able to play with, and for the added "lockout" effect, I (riskily) disabled the knock retard.
Doug Hoven is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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 -4. The time now is 05:36 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.