TBI swap to TPI
Thread Starter
Member
Joined: Jul 1999
Posts: 276
Likes: 0
From: Livonia, Michigan USA
Car: '89 Pontiac Firebird
Engine: 5.7L
Transmission: 700R4
Axle/Gears: 10-bolt w/ 4.10 and Eaton Posi
TBI swap to TPI
I want to take my TPI off of my Firebird(going to miniram) and put it on my 93 C/K truck that is TBI.
I was thinking of splicing the injectors on the driver side into one of the fuel injectors and then splicing the other side into the other four injectors. Sensors should not be a problem since they all look at the same values and have the same reference voltage.
The truck has a MAP sensor, so I don't have to worry about the MAF sensor.
What problems will I run into? The big one I think I might run into, is with the duty cycle of the computer.
Has anyone done this before and kept the originla computer? I do NOT want to switch over to DFI or an aftermarket stand alone system.
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Sportsman II 72 CC heads, Pete Jackson gear drive, Performance Resources chip, Edelbrock 1 5/8" headers and Edelbrock cat back exhaust, hi-flow cats, Trans-go stage 3 shift kit, Vigilante 9.5" 2800 stall convertor, SLP cold air induction, SLP roller camshaft, 24lb ADS injectors, AFPR, 3.45 rear end gears, and other goodies...
raven
I was thinking of splicing the injectors on the driver side into one of the fuel injectors and then splicing the other side into the other four injectors. Sensors should not be a problem since they all look at the same values and have the same reference voltage.
The truck has a MAP sensor, so I don't have to worry about the MAF sensor.
What problems will I run into? The big one I think I might run into, is with the duty cycle of the computer.
Has anyone done this before and kept the originla computer? I do NOT want to switch over to DFI or an aftermarket stand alone system.
------------------
Sportsman II 72 CC heads, Pete Jackson gear drive, Performance Resources chip, Edelbrock 1 5/8" headers and Edelbrock cat back exhaust, hi-flow cats, Trans-go stage 3 shift kit, Vigilante 9.5" 2800 stall convertor, SLP cold air induction, SLP roller camshaft, 24lb ADS injectors, AFPR, 3.45 rear end gears, and other goodies...
raven
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Raven 350:
I think you have an 8625 ECM, at least my '93 c/k truck does which operates the
4L 60E trans also. I haven't found anybody that knows if it can be used for TPI. If you come across somebody let me know too.
Thanks, Don>>>
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Chronologically challenged. But still kicking!
92 CAMARO RS
305 TBI 5/spd (now TPI)
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+
I think you have an 8625 ECM, at least my '93 c/k truck does which operates the
4L 60E trans also. I haven't found anybody that knows if it can be used for TPI. If you come across somebody let me know too.
Thanks, Don>>>
------------------
Chronologically challenged. But still kicking!
92 CAMARO RS
305 TBI 5/spd (now TPI)
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+
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