Mustang Tuning / AFR / Timing Help!

[Adam95GT]

Mustang Tuning / AFR / Timing Help!:

Today i got the car actually running right. Chris and i restabed the ditsy so it wasnt hitting the intake and we could move the timing around... We twisted it to advance the timing and the car woke the hell up!!!!!

No here is the thing what should you set the base timing at? i know 10* is stock, do i set it at stock base??

Also we finished the wideband install and started it up again... it was idling at 17-18 AFR and would spike as high as 20.... Where do i want the AFR at idle on a HCI car????

Im waiting to get my quarter horse back from moates so i can tune the car better

Currently its set up with a Pro M maf calibrated for 24lb injectors

But every once in awhile i could hear the intake pop... i know it does need tuning work im just looking at a starting point.

 

[modo]

12-14 base

17:1 is fine for idle

 

[Adam95GT]

Thanks for the help... ill set it at 14* base :icon_rr:


i thought 17:1 was a little lean :drunken_smilie:

 

[modo]

Thanks for the help... ill set it at 14* base :icon_rr:


i thought 17:1 was a little lean :drunken_smilie:

not at idle, i tune mine to idle and decel around 17:1, part throttle crusing is 14.7-15:1

 

[2002BLGT]

cam overlap plays a part in this , you can set it to idle at 14.7 but it will probably stall and idle rough that rich at idle