My buddy gave me a p13 ecu that has a Dinan chip on it, Anyone knows what the spec is?

 

Who cares? Take that junk out and get with the times - people didn't know the limits like today.

 

There's absolutely no way to tell unless you upload the binary file from it. Might be awesome, might be garbage.
In the old days the only way we could tune was with independent datalogging and a hex editor. BUT if you knew what you were doing, you wouldn't find any difference between this chip and the tune I did yesterday.

 

Admit it - that is an enormously HUGE IF.

 

Shoot them an email, they are still around ! They are in the bmw scene these days.

 

Until the late 90's there was no tuning software except hex editors, which requires some significant expertise. So if this is really that old, there's a good chance they knew what they were doing.
But that's a dead horse, tune it anyway.