Swapped with ported heads/bigger cam...
02-20-2005, 07:08 PM
#1
TECH Resident
Thread Starter
iTrader: (1)
Join Date: Apr 2003
Location: Tampa, FL
Posts: 798
Likes: 0
Received 0 Likes
on
0 Posts
Swapped with ported heads/bigger cam... would you expect my a/f to be richer or leaner? I need to go dyno tune. Right now, I THINK I'm running very rich, cuz I've lost almost 50 miles to the tank. But will go dyno this week sometime.
02-20-2005, 10:16 PM
#2
TECH Enthusiast
Join Date: Mar 2004
Location: Australia
Posts: 647
Likes: 0
Received 0 Likes
on
0 Posts
Fuel consumption has as much to do with your lead foot as anything else. However, if your are adding more air there is a chance you are infact running lean in closed loop and so the VCM is adding fuel to compensate. Closed loop fuelling could also be completely out of whack as you overshoot the stoich switchpoint due to cam reversion and the like generating a constant rich condition. There are so many possibilities that you need to log extensively and report back.
