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Rb26 With Rb20/25 Afm's

OFENSV

By OFENSV,
in Engines & Forced Induction

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OFENSV Proficient

OFENSV

Posted
Posted

just wondering how much power rb20/25 afm's will support on a R32 gtr? I see most people use the z32 afm's but they are quite alot more expensive. Was reading an old zoom mag and they said to use the rb20/25 afm's. Im aiming for about 300 - 320awk. Will thse do the job? Also do the wires for the plugs need to be changed around or are they straight plug in?

Cheers

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tacker Mentor

tacker

Posted
Posted

plugs are the same but the flex hose will fit if you try really hards LOL. you will need a re map thought as i did this to find it was very lean on the air fuel ratio.

Cheers mate. looking at that then 2 rb20/25 is plenty for what im after. You know if the plug or wirring needs to be modified to fit to a rb26?
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Interesting people have not steered ytou on the straight line!!!

You'll be able to get away without changing the AFM's

Ferni did using GT-SS i believe, and im also gonna give it a whirl on my very similar setup :P

Munna's "rule of thumb" is totally wrong in its power readings.

Z32's/Q45's read a fark load more than 250/300rwkw respectively

Although its more about airflow than power anyway

OFENSV Proficient

OFENSV

Posted
  • Author
Posted

well maybe i should keep the cash and go for the tune straight away with the standard afm's. im running hks 2530's pfc and have a set of sard 700cc injectors to through in. Think i should invest in a pump then instead of afm's.

Is it possible to put an external 044 inline with the standard pump without using a surge tank?

32R Apprentice

32R

Posted
Posted
Hi, I have R32 GTR with standard afm's and 375 kw at the rears on 18psi. Havent tried to push them any further yet though. Hope this helps. :thumbsup:

Do you have a Power FC?

What is the max voltage you see, as i regularly see 5.1volts with 310hp(230kw?) at the wheels.

Anyone else maxing there AFM at similar power level?

OFENSV Proficient

OFENSV

Posted
  • Author
Posted
Do you have a Power FC?

What is the max voltage you see, as i regularly see 5.1volts with 310hp(230kw?) at the wheels.

Anyone else maxing there AFM at similar power level?

So you say you standard 26 afm's a maxing out at only 230rwk? something cant be right there. They both read that?

SCOOP Enthusiast

SCOOP

Posted
Posted
Do you have a Power FC?

What is the max voltage you see, as i regularly see 5.1volts with 310hp(230kw?) at the wheels.

Anyone else maxing there AFM at similar power level?

Hi, yes I do have power FC. Im not sure about the volts, I dont realy play with my FC, But Ill try to find out for you next time I drive it.

32R Apprentice

32R

Posted
Posted
So you say you standard 26 afm's a maxing out at only 230rwk? something cant be right there. They both read that?

Yeah mate I know, I"ve read the tables too,with 400hp atw apparently the limit on std AFM(or Scoop may prove us wrong)

But they both read roughly the same,using the sw check they seem to fluctuate within a few millivolts of each other.

Could also be due to the cold weather as I never noticed them sitting that high in the summer.

It would be interesting to see other peoples power and peak voltage..

SCOOP Enthusiast

SCOOP

Posted
Posted

Hi guy's, first up Im not a tuner and I dont claim to know much about tuning. Im trying to learn but its all beond me, give me a chev with a holly carb and I can tinker with that just fine. Anyway my AFM are maxed out [no tuneing resolution] but they still flow the air to support the power. That is the way it has been explained to me, and that is all I can go on. What power would I need to run 10.9 @ 127.4 mph? Fair bit of wheelspin through first gear. This was my first time out with the car as we'll. :(

OFENSV Proficient

OFENSV

Posted
  • Author
Posted
Hi guy's, first up Im not a tuner and I dont claim to know much about tuning. Im trying to learn but its all beond me, give me a chev with a holly carb and I can tinker with that just fine. Anyway my AFM are maxed out [no tuneing resolution] but they still flow the air to support the power. That is the way it has been explained to me, and that is all I can go on. What power would I need to run 10.9 @ 127.4 mph? Fair bit of wheelspin through first gear. This was my first time out with the car as we'll. :D

You ran a 10.9? or your asking how much power you would need? What turbos are you running?

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