I'm trying to decide what components I should buy in order to program Proms. I plan on getting the pocket programmer, tunner cat, and DataRaceII. But what PROMS should I get, I've looked at Traxxions article and the places he recomend have about 20 or 30 different versions of the 27C128 chip. It is an 165 computer. Any suggestions, does it even make a difference?

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'86 TA, T-tops, T-5, 3.73, 4 wheel disks 350, compucam 2040, performer intake,SLP Headers, 3" race magnum muffler, 1.6 Comp rockers, Ripper shifter, perf. friction pads, Hypertech ignition, Earls brake hoses, Hotchkis springs, Tokico Illumina 5 adjustable shocks and struts, Lakewood panhard and trailing arms
14.73 @ 95... traction still a problem

[This message has been edited by slowTA (edited December 28, 2000).]

 

SlowTA,

Yes, it does make a difference. List the ones on the site and/or paste a link here and someone will let you know which one you will need. The biggest difference is in the package ... the physical EPROM can be in various forms. You want to make sure that you buy ones that match. I used EPROMs that were marked as 'CERDIP'.

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's after installing Hooker LT Headers and reducing weight.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

http://www.digikey.com/scripts/US/DKSUS.dll?Filter

Thanks for the help, I didn't see anything that looked like what you use.

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'86 TA, T-tops, T-5, 3.73, 4 wheel disks 350, compucam 2040, performer intake,SLP Headers, 3" race magnum muffler, 1.6 Comp rockers, Ripper shifter, perf. friction pads, Hypertech ignition, Earls brake hoses, Hotchkis springs, Tokico Illumina 5 adjustable shocks and struts, Lakewood panhard and trailing arms
14.73 @ 95... traction still a problem

 

Sorry about that, I guess I can't post an address that links to a keyword search. Anyway I went to www.digikey.com and typed in '27c128' and it came up with about 50 matching items.

 

SlowTA,

Type in the following in the search box on DigiKey's site....

27C128 EPROM 28-CDIP

You want a 27C128 EPROM with 28 pins in the CDIP package.

Tim

------------------
TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's after installing Hooker LT Headers and reducing weight.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

Well I tried that and got 4 hits, none of which were in stock. So I tried JDR Microdevices and they have CERDIP chips and not CDIP. Any other suggestions!!!

 

SlowTA,

The CERDIP EPROMs are what I am currently using.

Tim

------------------
TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's after installing Hooker LT Headers and reducing weight.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org