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Z32 Afm With Stock Ecu?

taiphan

By taiphan,
in Engines & Forced Induction

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Cubes Grand Master

Cubes

Posted
Posted
or remap your ECU...

Which is pricey when all you are doing it for is an AFM.

You will then require another remap later down the track and by that time you may as well have bought a pfc.

ECU remaps are only worth it if all mods are done and you will only require 1 tune. If you are doing mods in stages with multiple remaps then the pfc is the only and cheapest way to go.

The absolute cheapest way around it. Grab a second hand SAFC for a couple hundred, wire it in yourself, select 4 (z32) in 2 (std rb) out (from memory) start it and drive it off.

A stock afm is worth around $80-$100. You can use either an R32 or R33 S1 AFM.

MKDR33 Mentor

MKDR33

Posted
Posted (edited)
Unless you run an safc that converts the signal back to that of what the stock afm would read.

I have a SAFC II, does this mean I can install a z32 AFM ? i always thought u need an aftermarket ecu for this..

Edited by MKDR33
MKDR33 Mentor

MKDR33

Posted
Posted
why do you want to change AFMs?

there's no power gain to be had from a z32 AFM...

this i simply don't understand

so you can run more boost, and be able to get over 230-240rwkw.. dont think this can be achieved with the stock afm..

700HP-GTR33 Mentor

700HP-GTR33

Posted
Posted
WazR32GTSt

because my stock is stuffed..the car runs like shit sometimes and really nice at other times..

so instead of getting a stock ecu.. i thought it would be better to get a Z32 to power proof it..

Get your old one fixed...its cheaper and less fuss

:D

Cubes Grand Master

Cubes

Posted
Posted
I have a SAFC II, does this mean I can install a z32 AFM ? i always thought u need an aftermarket ecu for this..

Yes you can run a Z32 with your SAFC. There's an option that allows you to select HW4 IN HW2 OUT. Read the manual its something along those lines.

All this essentially does as I stated before is modify the Z32's afm signal to read what the stock afm would have under those airflow conditions.

So no the Z32 with an SAFC won't allow you to make more power due to having a higher airflow/volt ceiling.

You will need a remap or pfc for that one. :D

Cubes Grand Master

Cubes

Posted
Posted

Power proof to me means to me; if you have to buy another afm why waste the money on a stock item when you can buy a z32 now and get it working with what you have; later on down the track when you throw a bigger turbo on with an ecu remap or pfc its power proofed. :yes:

MKDR33 Mentor

MKDR33

Posted
Posted (edited)
Yes you can run a Z32 with your SAFC. There's an option that allows you to select HW4 IN HW2 OUT. Read the manual its something along those lines.

All this essentially does as I stated before is modify the Z32's afm signal to read what the stock afm would have under those airflow conditions.

So no the Z32 with an SAFC won't allow you to make more power due to having a higher airflow/volt ceiling.

You will need a remap or pfc for that one. :(

im aware that i wont get anymore power, the reason id get one is to resolve my fuel cut issue with the stock afm.. i cant boost any higher then 16psi..

Edited by MKDR33
Cubes Grand Master

Cubes

Posted
Posted
im aware that i wont get anymore power, the reason id get one is to resolve my fuel cut issue with the stock afm.. i cant boost any higher then 16psi..

*sighs*

Have another read of my post. If you are getting a fuel cut issue with the stock afm the Z32 isn't going to do sh*t IF you don't remap the ecu or run a PFC/aftermarket ecu.

As I said... The SAFC.

HW4 IN (Z32)

Convert to

HW2 OUT (RB AFM)

This essentially modifies the signal back to what it would read at that airflow level with the stock afm. SO you WILL NOT get around the fuel cut issue at 16psi.

MKDR33 Mentor

MKDR33

Posted
Posted
*sighs*

Have another read of my post. If you are getting a fuel cut issue with the stock afm the Z32 isn't going to do sh*t IF you don't remap the ecu or run a PFC/aftermarket ecu.

As I said... The SAFC.

HW4 IN (Z32)

Convert to

HW2 OUT (RB AFM)

This essentially modifies the signal back to what it would read at that airflow level with the stock afm. SO you WILL NOT get around the fuel cut issue at 16psi.

ive been told by a tuner that i can get around it with the SAFC II, this is why i was asking..

Cubes Grand Master

Cubes

Posted
Posted

Poviding there is enough scope you could set the afm to HW2 IN HW2 Out. This won't manipulate the afm's signal and cause the car to run mega lean across the board.

IF you were to richen it up via the safc it may give you a tad more head room but do remember as you use lesser load points the ign. values used are also higher. As a result its a receipt for detonation and a broken motor.

If you do go ahead with this be sure to throw it on the dyno when summer hits to ensure its not detonating as it will be very very close to the edge of detonation.

I wasn't going to mention you could do this and put the idea in to ppls heads as its a very bodgy way to squeeze a little more power out of the stock ecu. I believe this method to squeeze a little more out of their stock ecu has been covered some time ago. I also believe the bloke had rather dissapointing results. But its all setup dependant.

No doubt if you were to fit up an ITC and an adj. fuel pressure some decent gains could be made.

For the sake of slightly under $1000 for a pfc is it really worth the risk.

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