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Old 09-01-2020, 03:35 AM   #1
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Default Superchargers and MPFI and questions and oh my!

I'm finally getting serious about MPFI converting and supercharging my truck. I have tons of questions.

I know the OE blower is an Eaton M62. What plenum do I need? Is it the standard lower plenum with a unique upper plenum the blower mounts to?

M90s are stupid cheap. Is the base/gasket/bolt pattern on the M90 the same as the M62? I can buy 4-5 M90s for the price of one Nissan M62.

I want my wiring harness to stay as close to stock as possible. I know I'll have to extend wires and such but I really, really don't want to rip half the truck apart to swap a harness.

Is it plausible to pull the extra 8 wires for the other 4 injectors and make things be happy? I do plan on sending a MPFI ECM to JWT for a tune. I may use a Z car ECM. I know JWT uses the same test harness for TBI and early MPFI. Apparently even the plugs are the same. For TBI 2 injectors "fire" instead of 6 on the test jig.

Does the FSM have a pin out for the ECM?

I'm sure more questions will come.

I'm hoping 'Bama and Foul_Mouth will have input.
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Old 09-01-2020, 10:03 AM   #2
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There is a different lower intake manifold you will need. The upper intake manifold is replaced by the blower itself.
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Old 09-01-2020, 10:11 AM   #3
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The vg33er stuff starts on page 1190, https://www.nicoclub.com/service-man...c.pdf#page1190. That’s all I got time for before I walk out the door for work lol
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