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Changing AFM's and Injectors..

MidnightGTR

By MidnightGTR,
in Engines & Forced Induction

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MidnightGTR Community Regular

MidnightGTR

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Posted

I got a set of sard 700cc injectors and a pair of rb20 afm's for my gtr.

Im wondering if its safe/possible to change these 2 items without changing the data on the powerfc (injector/afm size), without making any other changes, wouldnt go trying to put more boost or anything into it.

Just wondering as I want to have all the parts on when it goes to the dyno, rather than paying the tuner to fit em on the dyno.

I dont have a hand controller for the pfc as the tuner just uses datalogit, so will the car still run or will I have to get hold of a hand controller just to change the 2 vaules? (no tuning)..

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https://www.sau.com.au/forums/topic/56442-changing-afms-and-injectors/
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MidnightGTR Community Regular

MidnightGTR

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You missed the point altogether... I know you CAN change it on the powerfc but I dont have a hand controller to do so, what im asking is will it be ok to put in these new afm's and injectors while leaving the settings on the powerfc same as it is now...

BHDave Grand Master

BHDave

Posted
Posted

It will probably run, though idle may be a bit ordinary and it will likely be a pig and like to stall every time you pull up. As long as you dont flog it you will probably be ok as long as you aren't driving too far as you will be getting a lot of extra fuel in and at the bottom end of the afm range the signals wont be too different from the rb26 afms.

Emre Proficient

Emre

Posted
Posted
Im wondering if its safe/possible to change these 2 items without changing the data on the powerfc (injector/afm size), without making any other changes, wouldnt go trying to put more boost or anything into it.

You have to change the values, the car wouldn't even start and idle.

Ideally, you need a fine tune on the dyno.

pnblight Mentor

pnblight

Posted
Posted
I got a set of sard 700cc injectors and a pair of rb20 afm's for my gtr.

Im wondering if its safe/possible to change these 2 items without changing the data on the powerfc (injector/afm size), without making any other changes, wouldnt go trying to put more boost or anything into it.

Just wondering as I want to have all the parts on when it goes to the dyno, rather than paying the tuner to fit em on the dyno.

I dont have a hand controller for the pfc as the tuner just uses datalogit, so will the car still run or will I have to get hold of a hand controller just to change the 2 vaules? (no tuning)..

ha the afms you must have handcontrol to change selection of afm used

and injectors you needed a dyno tune but mate its worth it trust me if you can find a good shop.

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