|December 12th, 2014, 10:15 PM||#1|
Join Date: Feb 2007
Location: covington, ga
Car idles in gear but surges
I have been working on my tune on my 1988 Mustang and got it to idle in gear somewhat. The problem now is it wants to surge really bad in gear. Its like it wants to surge forward with the lope of the cam. The engine idles its best the lower I put the base timing. I am down to 10 degrees. It actually ran at 5 degrees but throttle response wasn't as good. I played with the timing table and fuel table but can't get rid of this surging in gear issue. Checked all vacuum lines and even unhooked them (all but fuel regulator and map sensor)to eliminate a vacuum leak. I will get a data log of car running in and out of gear this weekend.
Anybody have any suggestions as to which direction to go ?
1998 Ford Explorer block 347 ci
AFR 185 heads
Holley Systemax intake
Ed Curtis cam
Mac 1 3/4 shorty headers
75 mm TB
42 lb/hr Bosch injectors
Ford Explorer ign coils
MS3 w/ MS3X expansion V3.57
LC 2 wideband (2)
4R70W with Baumann Opti-Shift controller
Precision Industries lock-up convertor 2800-3000 stall
"My life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather I will skid in broadside, thoroughly used up, totally worn out and loudly proclaiming... WOW... What a Ride!"
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Display Modes||Rate This Thread|