AFM's

[Kor'axis]

I did a search and found little. But from what i understand people are putting the larger diameter z32 (80mm??) in their cars. i need an afm for my car now and am not sure whether they are interchangable between models. I know you can put a r32 afm into a r33 s1. I have an r33 s1 NA does it matter whether the afm came from a turbo skyline or not, but if i decided to put in the larger z32 afm, how would that be able to fit into the pipe to the engine if it is larger?

thanks

[Kor'axis]

^bump^

[raz0r$harP.UK]

http://www.skylinesaustralia.com/forums/sh...ead.php?t=46719

The Z32 AFM, and R32 and R33 non-GTR AFMs are all the same diameter (80mm). Only difference between these are the plugs. The R32 (and R33 S1?) are different to an R33 S2, which is again different to a Z32.

The only larger AFMs are the 90mm which is from the Inifiniti Q45.

[Kor'axis]

then why do people change to z32 afms?

[raz0r$harP.UK]

they are similar sizes but give off different voltages from what i believe... ie the z32s have better resolution than say the rb20det afms but are of the same physical size

[Kor'axis]

thanks for the clear up. I was under the impression that there was a difference in physical size.

[pkblade]

then why do people change to z32 afms?

Normally because the stock one is physical restrictive & to avoid the AFM bottoming out in the rev range. The z32 has a wider range, which allows more airflow.

As mentioned above the z32 is a straight fit to the stock intake pipe, but you will need to recalibrate the engine management & also adjust the fuel & ignition values. So its advisable that you have an aftermarket computer to run it properly.

Although, you wouldnt really need one unless your planning to run over 200rwkw.