I have ordered a complete chip burning setup from BM Computer Source for my '87 GN. I have also bought a copy of tunercat and the tdf file I need to read and modify my prom on my '87 Formula 350. OK, here's the question: What kind of blanks do I need to have as spares and swapouts?

Someone had said a 27C128. I have two that are labeled - AM27C128
-150DC
9603APA
12.75V PGM
Will that work?


------------------
dgreene
'87 Firebird Formula 350 TPI, Ported Plenum, Adj. Fuel reg, gutted cat, catback exhaust, air foil, K&N air filter, chip,170 thermostat,Borg Warner Posi 9 Bolt w/ 3.23 gears....soon to be making custom chips for this and my 87' GN

 

The 27128s are fine and wiil work on the TPI. THe GN uses the 2732 series of proms.
The 87 uses a 165 ecm which uses a memcal that you'll need to modify, the GN uses the 148 ecm and uses prom holders.
At the Gnttype site they show the prom holders, and how to load and unload them.

 

Thanks Grumpy. I already have three chips coming with my setup for the GN. I also have my original memcal out of my formula modified with a ZIF socket. THe strangest thing is where I found those 27128s that I have. They were in some old ISA Adaptec SCSI cards that I had put in a box 3 or 4 years ago. The model number for those is AVA-1515. I noticed the bootrom on them was 28 pin so I pulled the sticker back, and saw the numbers and thought "man is that luck or what?".

------------------
dgreene
'87 Firebird Formula 350 TPI, Ported Plenum, Adj. Fuel reg, gutted cat, catback exhaust, air foil, K&N air filter, chip,170 thermostat,Borg Warner Posi 9 Bolt w/ 3.23 gears....soon to be making custom chips for this and my 87' GN