I'm trying to get the part number for thwe memcal of a 1989 camaro for both a 305 and 350 TPI with autimatic transmissions. I've search GM ECM and several other places but haven't been able to find one.

Are there any sites that have reliable part numbers for memcals?

I'm converting from an 870 to a 165 ECM and want a couple of backup memcals. I currently have a stock 305 TPI which would be a nice and stable platform to begin PROM burning with. Mid summer I will replace the 305 with a mild 350. Hence the reason for both memcals for good backups. I have all the PROM burning equipment but It's good to have working memcals when the swaps occur and then stick in a modified ARAP PROMs when everything is satisfactory.


James

 

oops, I guess I needed 1 more minute of search time.

https://www.thirdgen.org/newdesign/f...n.shtml#engine

Have these been shown to be reliable?


James

 

After reviewing the list I have a few more questions:

1) Does it matter what gears you have or if it a federal or CA calibration?

I haven't seen anybody concerned about what gears a bin file is for or whether the bin is a federal or CA bin and I haven't seen a constant for rear gearing in a bin file. I suppose it has to do with fuel and spark optimizations?

2)What is the difference between a federal and CA calibration? Does it matter?

James

 

Gearing plays a big part in how much load the engine sees, and thus effects the timing and fuel reguirements. You can have more timing and fuel at lower engine speeds, with taller gears / looser converter.

On some cals makes all the difference on weither Fed or CA. There is even some export stuff. If you see the code NM8 that means it's even an unleaded chip.

 

darn, it looks like most of those memcal part numbers are no longer valid, namely the 89 memcals. Looks like I'll have to go to the local dealer and either take it like a man or steal the part numbers and go to gmpartsdirect.



James

 

What's the problem?, you want the latest version of whatever base calibration your starting with. If you can't find a specific number used, then go new, if going new, just get the latest.
Remember there is more to a memcal then just the eprom.

 

not really a problem. I was just hoping I could punch a few part numbers into gmpartsdirect.com and avoid a trip to the dealer. I think the memcal is the type of part where it is better to bring them the old one than to give them a make and model and have them look it up.


James

 

here are the new part numbers for the 1989 memcals:


89 5.0-F ANYZ 16133479
89 5.7-8 ANYK 16150502


I guess you can look at the broadcast code to see the application (trans type, gearing, etc.) using the link several replies up.

James


[This message has been edited by james_fearn (edited May 29, 2001).]

[This message has been edited by james_fearn (edited June 05, 2001).]