i have a 1985 vette that i have done some small mods. to i have been lurking here trying to find some info on the posible mods to the ecm this car is mostly origanl and i intend to keep it this way but i whould like to improve what i have has anyone here done any work with this "worthless old one year only ecm" i dont need to be told to change to a late mod. ecm i just need some help with the one i have. i have two other projects that will use the 730 ecm and have just bought a laptop,tunercat and diacom

 

If you bought a programer/diacom/tuner cat

USE IT

I drive an 85..... there is no hope for us

730 bruthah

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1985 IROC-Z, nuff said :P

 

maybe i wasnt clear in my first ? i was hoping there was some suport here from somone with experance with the 870

 

Track down Craig Marcho at corvetteforum.com or e-mail Mike Davis (do a search - he is referenced widely here). Davis has some '85 .bins at his site.

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-Greg

'85 Trans Am - WS6,TPI:
Original owner, original paint/engine/interior, plus the usual bolt-ons

 

I have a few spare 85 bins lying around from when I had the 870 in my 85. They won't do you much good though because the pulsewidth had to be cut way back to compensate for larger injectors and it ran terribly.

If you are asking what needs to be changed, make a bunch of part throttle runs and see what your BLM and INT readings are. Start tuning from there. -Matt-

 

this is a great start thanks