ECU, mpfi, manifold confusion
Thread Starter
Fucks wit it
Joined: Mar 2004
Posts: 1,650
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ECU, mpfi, manifold confusion
Alright, so I am trying to do the mpfi swap on th rex. So i buy a Si head and manifold, then a pm6 and the plugs with it. Then my parents tell me they have the manifold and ecu at their shop from a car they had that came off a crx si parts car we had....
The stuff i bought was:
Si head
Manifold- on back says....PM6....HF-2
ECU says PM6
My parents stuff:
ECU...PM8(whats this form and for??)
and the manifold says...P32 IPT-2
the manifold with p32 on the back has the injectors and rail, my other one doesnt. Most everything is the same, but a couple places where hoses go are different. And the plugs that i got with the PM6 wont go on the 2nd manifold injectors. What should i do, i'm lost on what is good and what isnt
The stuff i bought was:
Si head
Manifold- on back says....PM6....HF-2
ECU says PM6
My parents stuff:
ECU...PM8(whats this form and for??)
and the manifold says...P32 IPT-2
the manifold with p32 on the back has the injectors and rail, my other one doesnt. Most everything is the same, but a couple places where hoses go are different. And the plugs that i got with the PM6 wont go on the 2nd manifold injectors. What should i do, i'm lost on what is good and what isnt
Registered Member
Joined: Feb 2004
Posts: 33
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Re: ECU, mpfi, manifold confusion
Originally Posted by CRXalwysk8
i found out that the pm8 ecu is for a hf, so im gonna use the pm6, but now i dont know which manifold to use, also ill sell the pm8 ecu to anyone.
Use the intake manifold that is larger. One may be from the hf which is garbage. It has tiny runners and throttle body. The si one has larger runners and larger throttle body which means more air. Add more air and more fuel compressed right it will make more power.
