Rb26 With Rb20/25 Afm's

[OFENSV]

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

[Munna1]

http://nissanskyline.6te.net/AFM.htm

[OFENSV]

  Munna1 said:

http://nissanskyline.6te.net/AFM.htm

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?

[Munna1]

Not sure sorry mate

[tacker]

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.

  OFENSV said:

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?

[OFENSV]

cool. was just going to use a reducer to fit them. now all i need is to find a pair.

[R31Nismoid]

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

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

[The Dan]

A pair of 20/25's are usually good for 400rwkw

Z32's are tunable up to around 600hp each from what Bosch tell me

[SCOOP]

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.

[OFENSV]

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]

  SCOOP said:

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.

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]

  32R said:

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]

  32R said:

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]

  OFENSV said:

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]

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]

  SCOOP said:

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.

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

[SCOOP]

Yes, And Im saying I did it on standard AFM's and what power would I have to be making to run that time. Im running GTR-S turbo's.

[GTR-Ben]

A friends car is running the stock twin afm's with a split pipe on a T88. This car has made over 400kw and ran a best of 10.6 so it's possible.

[OFENSV]

they may be able to flow that amount of air for that power, but does anyone know when the scale/volts max out at what sort of power? 32R says his afm's see 5volts and is only producing 230wk.

[R31Nismoid]

i'd say his AFMs are dirty