z32 AFM

[hungry6]

Does anyone know how many HP one of these are supposely support? I've seem to run out of voltage range, and is there any aftermaket company who sell a higher resolution one?

[paulr33]

how much power are you maxing? are you maxing it out at 5volts or some other problem? what mods and car? the q45 afm taken from the vh41 is the next step up.

[hungry6]

It's gone 5 volts, there is no other probs, it just seems they don't support as much as alot of ppls claim or the dyno is out by a fair whack.

[Sumo]

Snippeet for Sydney Kid's post

------ ---- OD ---- RWKW ---- RWKW ---- BHP ------ BHP

No of AFM's ---- ------- 1 -------- 2 -------- 1 -------- 2

RB26 ------ 65 ------ 149 ------ 299 ------ 271 ------ 474

RB20/25 --- 80 ------ 226 ------ 453 ------ 376 ------ 683

Z32 ------- 80 ------ 255 ------ 511 ------ 415 ------ 763

Q45 ------- 90 ------ 302 ------ 605 ------ 479 ------ 890

http://sau.com.au/forums/showthread.php?mo...=hybrid&t=53284

Theres the thread

Cheers

Sumo

[R31Nismoid]

Z32 255rwkw? totally inaccurate.

ive had 369rwkw still using my single Z32 AFM

[Sumo]

No worries mate....

Well I thought I would do a search and posted the results.... Im not up on the resolutions of AFM's... yet

[R31Nismoid]

I lvoe seeing the search button being used.

excellent work

[hungry6]

I wonder why mine are maxing out so early then, Or is it that the individual tuner estimate fuel curve beyond the resolution of the AFM, that produces some of these higher power figures.

[Cubes]

How much power are you making Hungry?

Do you have a pod adaptor in front of it that isn't the full 80mm?

Making 176rwkw my RB20 AFM was hitting 4.9v, .2v left to make another 30rwkw or so.

Attaching the Z32 saw the AFM voltage drop to ~4v.

[Mr_G]

Im making 202 RWKW but was consider the z32 AFM as my series 2 r33 afm is maxying out @ 5volts according to the PFC hand controller

Anybody know if there will be a performance benefit upgrading to the z32 or any benefit what so ever???

R33 GTST Mods include: Full turbo back exhaust, 13psi boost, front mounted intercooler, exhaust cam gear, pfc, stock turbo, pod in box with CAI.

[R31Nismoid]

you shouldnt be maxin a stock AFM with the stock turbo by any means

[Mr_G]

you shouldnt be maxin a stock AFM with the stock turbo by any means

its reading 5115 on the hand controller tho ????

[Sumo]

Mr G, its a posibility that the AFM you have is a bit shonky. Have you got a mate you can swap with for a while and see how you go?

Cheers

Sumo

[hungry6]

Ahh , ok from the figures some of the members quoted, then I'm bang on the mark then.

Thanks for everyone post.

[gtr fan]

Can you get a nismo air flow meter? The nismo items for gtr's have higher resolution so maybe you can get one for your car.

[Cubes]

I've seen a Q45 hit 4.8v when only making 200rwkw.

That had a 70-80mm (I think) pod adaptor, so essentially it was blocking off the outer 10-20mm.

[Mr_G]

Mr G, its a posibility that the AFM you have is a bit shonky. Have you got a mate you can swap with for a while and see how you go?

Cheers

Sumo

You mean just finding another Series 2 AFM and trying that out??? Thats not a prob... So you recomend that and giving it a shot?

[paulr33]

mines the same as mr_g im maxing out at 5100 on series 2 with pfc and usual mods

you wont gain any power moving to a z32 i dont think its just hard to tune around if your car say reads 5volts max from like 4000rpm onwards orsomething crazy like that if its just a momentary spike then it should be ok

[paulr33]

maxing out and really maxing out are two different things im pretty sure. maxing out is where u momentarily just hit 5100 volts for a few seconds like full boost and going to redline you may max it out at 5600rpm for 1/2 a second whereas normally its just under. and "maxing it out" is like being on 5volts from 4500rpm onwards to redline, i think thats what r31nismoid meant by you shouldnt be "maxing it out"

[siksII]

i thought my afm (s2 rb25) was maxxing out too early, so assumed the afm was stuffed, it would max out at about 6500 in second gear with 10psi, and a lot less power than some others with afms that were not maxxing out.

i swapped it and tried it out today, the afm i swapped it with gives out the exact same readings as my original one. i dont know if both are stuffed or thats just how they are.

with the stock ecu at 10psi the afm must have been reading high as it went into r&r mode at about 4500rpm. i know of other cars with same mods as mine but stock ecu that dont go into r&r at 10psi at all.

so im not sure, afm or something else?