Air fuel ratio meter needed??

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knever3
Learning to use the board
Learning to use the board
Posts: 37
Joined: April 6th, 2012, 3:34 pm
Stroker Displacement: 4.7L
Vehicle Year: 1987
Vehicle Make: Jeep
Vehicle Model: Comanche

Air fuel ratio meter needed??

Post by knever3 »

I have a 4.7 stroker for my Comanche, '96 block and head, '99 intake and throttle body, Ford 24lb injectors, renix wiring and computer.

What do I need to keep track of the engine?

Adjustable MAP?
Wideband air fuel ratio gauge?

Let me know what I need and why if some of you guru's can chime in.

Thanks!!
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Muad'Dib
Site Admin / Owner
Site Admin / Owner
Posts: 1517
Joined: January 8th, 2008, 10:55 am
Stroker Displacement: 4.7L
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Oregon

Re: Air fuel ratio meter needed??

Post by Muad'Dib »

To truly see whats going on with the engine you need a Wideband 02 Sensor.

As far as tuning, you can only use a Adjustable MAP and Adjustable FPR on the RENIX, so as long as you have the right size injectors you should have no problem tuning.

I have a RENIX with a 4.7 and i started with 26# injectors. They were way to large. I dropped down to 23# and they are still a bit large. Ive thought about dropping down to 21#.

Every engine is different, so you will need that Wideband to figure out what needs to be done with yours.
If it feels right, then STROKE it!