MAP to MAF
09-22-2012, 09:21 AM
#1
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Car: 1990 GTA
Engine: 355
Transmission: T-56
Axle/Gears: 3.90
MAP to MAF
I just bought a 350 out of an 88' Iroc with what looks to be a 90'-92' MAP plenum on it in pictures...I didn't buy it from the owner but from a place that had the car after it was wrecked. I have it going into my 87' Iroc replacing my 305TPI with 7165 ECM. Of course I won't know for sure until I see it in person but just in case I have to do a swap back to MAF what would I need to do so as I already have the TPI setup off the 305..anything else I would need to make the switch that I haven't thought of yet?? Thanks!
09-22-2012, 12:31 PM
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Car: 1990 GTA
Engine: 355
Transmission: T-56
Axle/Gears: 3.90
Re: MAP to MAF
I guess another question I could be asking is it possible to run a MAF system with a plenum from 90'-92'?? maybe that's whats going on there??
09-22-2012, 01:22 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: MAP to MAF
Just swap your 305 intake on to the 350 motor. You will need the knock sensor for a 350 and a 350 chip for a 87. Use the Injs from the 350 on the 350.
This could also be a good time to upgrade the intake parts for more power if your into that.
Its nice and easy to redo a intake out of the car. Enjoy.
This could also be a good time to upgrade the intake parts for more power if your into that.
Its nice and easy to redo a intake out of the car. Enjoy.
Last edited by TTOP350; 09-22-2012 at 01:25 PM.
09-22-2012, 01:49 PM
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Car: 1990 GTA
Engine: 355
Transmission: T-56
Axle/Gears: 3.90
Re: MAP to MAF
Ok thanks! being that I bought this motor with all the stuff to go with it like intake, pulleys, harness etc. I hope the knock sensor comes with it as well.
09-22-2012, 02:31 PM
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Car: 1990 GTA
Engine: 355
Transmission: T-56
Axle/Gears: 3.90
Re: MAP to MAF
Also I just thought about this...if I change the intake to the one on my 305 MAF will I still be able to use the harness off the new 350? Or will I then have to use the harness off the 305 and use that along with the intake on the 350? Or does it make a difference whether its MAP or MAF..is it the same kind of harness?? Or the year of the car make a difference? 87' and 88'?
09-23-2012, 09:00 AM
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Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: MAP to MAF
they can be repined to suit but to run the MAP harness off the new 350 as it comes out of the car
you need a MAP (730 ) computer
If the new engine is MAP then the knock sensor won't work on a MAF engine.
Need a 350 MAF knock sensor
You don't even need to swap the intake , install the 350 complete and just remove the MAP sensor and plug the vac line that runs to it ; is only difference between MAP and MAF plenums
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