which PROM chip?

[techg8]

Looking for recommendations on a chip for the ECM

86 Olds 307 VIN9

Ive got everything ready to go except a PROM.

Ive seen the Hypertech and Jet chips out there. Should I stick with a stock chip? or get an aftermarket one?
What have you used/what have you done?

recommendations?

Thanks!

 

[DoubleV]

Those chips don't really do squat. Unless you're getting one for free don't bother.

 

[classic gbody]

True, Don't waste your money. Chips only do "well" on fuel injected cars. If you want performance then get rid of the ECM and put a non ECM carb and distributor on it so you can tune it that way.

 

[FE3X CLONE]

x3, save your money.

 

[techg8]

Thanks for the replies. Sounds like a used, stock PROM is the way to go.

I have to get something, as the ECM I have has no chip.

I really appreciate the feedback.

 

[DoubleV]

Sounds like a used, stock PROM is the way to go.

I have to get something, as the ECM I have has no chip.

PROMS chips are different year to year. There may be differences between ones of the same year too. Because of that you can't just pop any old chip in your ECM and have it work. You would be better off getting a new ECM with the matching PROM already in it.

 

[techg8]

The part number I need is

PROM#16062789

from

ECM#1227301

 

[techg8]

just a followup

I ran my car with stock chip and then with aftermarket chip at the track. results here

viewtopic.php?f=10&t=41141