Nismo Afm ,

[waxracing]

Can some one put to bed the rumors that a nismo afm for a rb26 is just a stock one with z32 internals ??

Im not sure how to go about my build and I have a set of stock 26 afm, I will just turn them into nismo if this is the case

[R31Nismoid]

They are not identical. The resolution/calibration is slightly different due to the housing size.

Think of putting a stock AFM element into a 100mm body - the AFM will give the same reading, but there is LOTS more air as it's calibration hasn't been altered to account for it.

If they simply put a Z32 into a stock housing, it wouldn't work and would read markedly different - hence Nismo are a tad different as they've been calibrated however they are set.

Someone a 3-4 years back did post a graph of the two against voltages, wasn't huge differences - but they were there.

(sorry i can't recall whom it was).

[Piggaz]

I have another one on my PC somewhere. I'll dig it out tomorrow.

[waxracing]

I understand that the flow in a z32 and the same sensor in a gtr sized afm would be different and the vq map would be different. I was just wondering if the z32 sensor in the rb26 afm gave the same vq map as the nismo units

[R31Nismoid]

That's the one Paul

Without actually going and testing it, I doubt anyone would know.

Not read anywhere about someone putting a Z32 into a stock housing, they just buy an adaptor kit to fit the AFM. Far easier and cheaper than chopping up 4 AFMs.

There is only around a $150 price difference between 2x Nismo and 2x Z32. Factory in adaptor kit & pods to suit a Z32 and there isn't much in it at all over going Nismo ones.

[waxracing]

Yeah fair enough when you put it that way.

I can use rb25 ones but I wanted to run the stock airbox ( gtr) and while I get the 25 ones into a stock airbox it makes it very tight

[R31Nismoid]

Ye there really isn't much in it by the time you get legit Z32 AFMs. Heaps of copy AFMs around that are about $100ea cheaper.

greenline.jp - cheapest place for Nismo items every time i dig around