boost through mass air or suck through?
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Junior Member
Joined: Feb 2009
Posts: 50
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From: milford nj
Car: 86 Iroc-z
Engine: worked 350tpi
Transmission: built 700r4
Axle/Gears: auburn pos 4-10
boost through mass air or suck through?
I have an 86 iroc 305 tpi supercharged, is it better to put the mass air on the inlet side or boost side? Im starting to have a code 42 and its dopping back the timing, i have my mass air on the boost side i didnt know if this could be related at all? i have replaced everything that could be related to a code 42, knock sensor, ignition mod,ecm, plug wires and still the same issue. Any ideas?
Junior Member
Joined: Jun 2007
Posts: 46
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From: Dayton, OH
Car: 1987 Trans Am
Engine: Forged 383 with Brodix Heads
Transmission: Pro-Built TH400
Axle/Gears: 9-Bolt 4.11s with Posi
Re: boost through mass air or suck through?
I would assume you'd put it before the turbo so that it measures all the air that is drawn in.
Joined: May 2008
Posts: 867
Likes: 1
From: pawtucket RI
Car: 1986 iroc
Engine: alum. head 350 supercharged
Transmission: 6speed
Axle/Gears: ford 9in 3.90 35 spline moser axles
Re: boost through mass air or suck through?
leave it on the boost side that references how much air is goin thru if you put it on the other side wouldn't read correctly
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