I saw a '92 GTA and would like to know how hard it is to convert to whatever set-up they have instead of the ugly MAF i have on my '88. thanks

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1988 Pontiac GTA 5.0 TPI
-K&N Filter
-Hypertech Air Foil
-Hypertech Perf. Chip
-2.5in Flowmaster Muffler
-Catco Hi-flow Cat

Kills
94 Probe GT, 95 Mustang GT, 96 Impala SS, 85 Thunderbird 5.0, 95 Accord V6, 98 Integra VTEC, 70 Chevelle Malibu, CRX w/ Turbo and Intercooler (have it on tape to prove it)

 

122730 speed density computer and a PROM
SD knock sensor
SD air intake setup
MAP sensor
cold-start injector blockoff kit
and rewire your existing harness or get one from a speed density car

There's probably more but thats off the top of my head. You dont need to convert on a stock engine, its mostly for modified ones that flow more air than the MAF sensor can read.


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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Why would u want to convert to SD??

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

I second that.... why??

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Kevin Irving
85 Trans Am WS-6, 305 TPI, custom burned '86 PROM with '87 "165"ECM, Accel Supercoil & 8.8 Wires, MSD 6AL, Aluminum Driveshaft, TB Coolant Bypass, Ported Plenum, Modified MAF, Syclone Fuel Pump, JET Airfoil

15.556 @ 86.65mph, Nov 10, 2000.... I know it sucks.. but it will get better!

http://www.geocities.com/transam85tpi/

 

For the reason that I said, when your car flows more air than the MAF sensor can read, it becomes a restriction in the intake. And if you're doing custom PROMs, the speed density setup allows for a lot more tunability, according to what I've heard.

See Mike Davis' website, he did the conversion.

 

I agree with Kevin on the eprom part. The SD eprom is far more defined and understood than the MAF eproms. Also, the SD eprom allows you to make certain changes that directly corrolate to the injector pulse width. Much easier to determine what changes are necessary and make the direct changes IMO.

Lastly, once you get it right (and it is not that hard), SD is quicker to respond; better resolution as Grumpy (Bruce Plecan) would say.