iv been told since my 88 gt has a map sensor i cant change my heads or cam or it wolnt run right but if i had a maf sensor the computer would read the differeance and adjust itself. if so is it possiable to get a different chip or a tuner for my 88?
u can probably get away with changing the heads with ur speed density set up, but 1 u really start to mod your engine ur gonna need a MAF. Check out a MAF conversion kit, its fairly easy with the right tools, wire strippers and butt conectors. you can prolly do it in an afternoon.
I would say to do the maf conversion...it may be touch and go with sd just with the heads..but my bet is that ur mods wont be stopping there..get a good kit with good direction or someone that has done it before....remember than ur map has to remain where it is with the left vacuum line uncapped.
If you have the complete computer system from the 1990, you can switch the computer, harness, mass air meter, and then unplug the MAP and leave it unplugged. Question is: are the transmissions in each car the same, or is one stick and the other automatic?
What you heard is right, speed density doesn't take well to modifications. Anything that changes the pumping characteristics of the engine like heads, intake, and especially the cam will cause a hunting idle, surging idle, pathetic gas mileage, and poor driveability. Switch it to the mass air system and it's game on for modifications. If you don't switch, the car will drive you NUTS until you switch to mass air. Stock for stock, a speed density car is a couple of ticks faster but you would have more adjustability with mass air.
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