1989 SSP with Speed Density - need help converting it back
Yesterday I picked up an '89 Government SSP. I was suprised to see that it didn't have a meter in the intake tube, but, the car fired right up and for the money I couldn't pass it up. Once I got home I pulled the kick panel and sure enough it has a "DC" speed density computer. The car still has the MAF connector in the engine bay and I'd like to change it back to Mass Air. I assume that someone changed it from Mass Air to SD. The engine has about 140K on it and its smoking a little bit. I have XB3 motor (345Hp rated) in my garage that I'd like to swap but I've read that the SD computers dont adjust so well to mods since their based on load.
Can I swap in a A9L or A9P computer, Mass Air Meter and unplug the vacuum from the BAP and be good to go? or are there other things that need to be done or confirmed before swapping back?
I have a 73mm Pro-M meter that is labeled for 24's and a set of 42lb injectors but I think the injectors would be a bit too much. I tune my other car with the quarterhorse but I'd rather not have to tune this N/A.
'87 Notch: Coyote swap 10.69 @127 w/ 1.47 60' SOLD
'89 Notch: Coyote Swap 10.51 w/ 1.39 60'
'93 Notch: F150 Coyote swap SOLD
'82 Notch: F150 Coyote on the engine stand
Last edited by 87coupe50; 06-21-2011 at 04:25 PM.