PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

Tuning VE on HOT days?

Thread Tools
 
Search this Thread
 
Old 07-10-2012, 07:49 AM
  #1  
12 Second Club
Thread Starter
iTrader: (6)
 
Blwn_by_Twins's Avatar
 
Join Date: Apr 2008
Location: The armpit of the United States.
Posts: 337
Likes: 0
Received 0 Likes on 0 Posts
Default Tuning VE on HOT days?

So I've slowly been working on my STFT tables and am getting them pretty close to all being <2. I have today off, but it's going to be hot as hell again. Just wondering if I would go backwards trying to get some more done today.
Old 07-10-2012, 02:18 PM
  #2  
Staging Lane
 
Sunny's Avatar
 
Join Date: May 2004
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts

Default

Old School Theory says your motor would be lean on cold days and rich on hot days. There are more oxygen molecules in the air on cool days depending on altitude causing leanness.
Old 07-15-2012, 08:30 AM
  #3  
TECH Fanatic
iTrader: (10)
 
redtail2426's Avatar
 
Join Date: Aug 2004
Location: Rochester,Ny
Posts: 1,433
Likes: 0
Received 0 Likes on 0 Posts

Default

i set the cylinder charge temp bias on my speed density tunes to 1.0 across the board.That way the air temp wont over correct your air/fuel ratio and stay more consistant on hot and cold days.
Old 07-15-2012, 05:00 PM
  #4  
TECH Veteran
iTrader: (14)
 
bayer-z28's Avatar
 
Join Date: Apr 2005
Location: N. Falmouth MA
Posts: 4,085
Likes: 0
Received 0 Likes on 0 Posts

Default

I wonder how hot weather would effect fuel transients also. Warmer IAT would be easier fuel atomization.




All times are GMT -5. The time now is 10:03 AM.