TBI to TPI help
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Joined: Jan 2009
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From: North West Houston
TBI to TPI help I have a 1994 chevy blazer that I have built a full roller 383 stroker for. The stock 42mm TBI system will not feed the beast. I have a TPI intake system with harness from a 1989 T/A that I would like to use for now. Can anyone tell me how I can use this system with my ECM?
You can find them on Ebay, craigslist, on the various F body forums.
Make sure you get the correct memcal of have somebody burn you one.
The ECM in your truck was never available with port injection, so you wouldn't find a memcal to run your TPI system, that would work in it
Make sure you get the correct memcal of have somebody burn you one.
The ECM in your truck was never available with port injection, so you wouldn't find a memcal to run your TPI system, that would work in it
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Thread Starter
Registered User
Joined: Jan 2009
Posts: 19
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From: North West Houston
What I have is
3.75 stroke crank
5.7 sir rods
hypertech -5 pistons (10.6:1 with heads)
64cc chamber heads 210 runners (aluminum)2.02 1.60
hydraulic roller 224/230 @.050 / lift .501/.509
1.5 roller rockers
Its mild but I am not sure how much cam you can have with a computer.
3.75 stroke crank
5.7 sir rods
hypertech -5 pistons (10.6:1 with heads)
64cc chamber heads 210 runners (aluminum)2.02 1.60
hydraulic roller 224/230 @.050 / lift .501/.509
1.5 roller rockers
Its mild but I am not sure how much cam you can have with a computer.
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Verdad Gallardo Just the engine wiring and you'll have to tie in to the OBD1 port under the fash and the service engine light. The center line of the cam is what effects the tune the most. The 383 ramjet setup I had was more radical then that and was controlled by a 730 ecm, so you should be able to make it work
Thread Starter
Registered User
Joined: Jan 2009
Posts: 19
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From: North West Houston
Thank you for all the advice. I have built many carb engines but this is the first time I have tried to do any electronic fuel injection performance mods.
My cam lobe center is 112
My cam lobe center is 112
