I don't understand!!!
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Member
Joined: Nov 2001
Posts: 130
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From: Ft. Campbell,Ky USA
I don't understand!!!
I have an 85 Z28 upgraded from 305 TPI to 350 with 305 TPI. Anyways I know I need a different PROM and other things. I was looking at a PROM from 87 I think. Anyways are 350 PROMs from Firebirds the same as Camaros. I need help NOW. Thanks
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Joined: Jul 1999
Posts: 10,907
Likes: 4
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Yes the PROMs for Camaros and Firebirds are the same (for comparable engines/transmissions/gears). However, 1985 is a "one off" year for TPI and the poorest defined of the calibrations. Only a 1985 will work on a 1985. You could look at changing your ECM to the later 7165 used from 1986-1989.
Supreme Member
Joined: May 2000
Posts: 2,963
Likes: 3
Car: 1982 Z28
Engine: LS1
Transmission: T56
The 1985 TPI is a one-off setup, different from '86 up. To use software other than '85 you'd need to swap ECMs. Mike Davis documented this process very well at:
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
After upgrading to the later '165 ECM you can use later software and have better options if you want to get into chip burning.
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1982 Z-28
See http://www.mycar.net/mafb/registry/detail.cfm?id=276 for details
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
After upgrading to the later '165 ECM you can use later software and have better options if you want to get into chip burning.
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1982 Z-28
See http://www.mycar.net/mafb/registry/detail.cfm?id=276 for details
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