on my '85 Camaro Z28
1985 ECM upgrade project begun !!     99-08-26 Finished => 99-08-30.
My "new" 93 Dakota ClubCab
4x4 w/5.2l V8
Back to my EPROM/ECM page
'85 Z28/ZZ4-TPI Performance Modifications - Page Last Updated 991101
This project will detail the steps, parts, hints, techniques
for performance modifications I've made to my 1985 Z28 and it's GM TPI induction sitting atop a GMPP ZZ4 crate motor.
Edelbrock (Part# 3860) High-Flo TPI intake
Pics of Stock TPI intake & ZZ4 heads
Pics of Edelbrock High-Flo TPI intake
Pics of PORTING Edelbrock High-Flo TPI intake
GMPP LT4 HOT cam (PN 24502586) and CompCams 1.6 ratio Roller Rockers (PN 1418-16)
Pics of LT4 HOT cam, CompCams 1.6 Roller Rockers
Stock Plenum Porting for Large-Tube Runners and 58mm Throttle-Body
Pics of Porting Stock Plenum
Pics of Stock and Aftermarket Runners
Pics of Stock and Aftermarket Throttle-Bodies
SLP Stainless Steel 1-3/4" 4-to-1 headers w/AIR, Random Tech. performance Cat.
Pics of misc engine and car mods including:
Cold-start Injector blockoff kit
March Underdrive pulleys
MSD 6A Ign.
Rear End carrier/axel/gears
700R4 speedo gears
Driveshaft Safety Loop