Jump to content
SAU Community

Recommended Posts

AFM guide from Paulr33

Rule of thumb for Air Flow meters RWKW & Engine BHP

------ ---- 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

Thats actually different from what Apexi state within their pfc pro commander manual.

As quoted from Apexi

80m RB25 airflow meter can measure up to approx. 300ps (221kW)

80mm VG30 airflow meter can measure up to approx. 500ps (368kW)

90mm VH41 airflow meter can measure up to approx. 400ps (294kW)

*Output is calculated off of measurable air volume

I have no idea which is correct. :S

before i get my turbo etc etc....im gonna get a simple tuned for just the standard turbo, cooler, zorst, around 12-13psi.....anyone done simular and know what sorta power im lookin at...it pulled a constant 205-207rwkw (with a bit of a flat spot before 4k, then kaboom she'd be off) with standard puter with 11psi. mad rich aswell 10.1:1 mixtures throughout. already the powerfc has eliminated that flat spot.

Edited by Ryanrb25

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Sharing results from recent Liberty Walk R35 GTR, since they are still considered as somesort of a V36 Skyline. We do them turbos too. This are high flowed SS-1 models with ball bearing conversion done.  Car have managed to pull 485awkws @ 20Psi so far pushing limitations of factory built engine. The build list for R35 GTR enthusiasts as follow : HyperGear high flowed stock turbos in SS1 (G25-660 specs) Custom titanium intake pipes. Vspec performance titanium front pipes. Vspec performance 4" titanium exhaust. Upgrade fuel pumps. 1200cc injectors. Ignition coilpacks Hks intake plenum. Hks intercooler piping. Greddy intercooler. Greddy bovs. Top-secret coolant reservoir. Emtron ecu. Straight E85. Built gear box.  
    • Nah no bearings, just slip fit.  Would be a reasonably challenging but not impossible job to modify it to run bearings but I'm hoping that's not necessary as I may have well built one myself if I end up spending hours modifying it!
    • Brumbys with good shells are bloody expensive, I've looked at 2 "cheaper" cars, and walked away from both,  plus after some research spare parts are fairly sparce I'm starting to think that I missed the boat on finding a clean one that is straight (ish) and without alot rust I'm starting to think about a old Hilux as panels and other parts are much more available as they sold tens of thousands of them I use to be indecisive but now I'm not sure
    • A Brumby would probably fit a big metal toolbox in the back... this is how it begins  
    • Picked up a new OEM boot seal for the MX5 today as the old one got ripped a bit by me being a idiot by seeing if I could fit a large metal tool box in it, it didn't fit, and ripped the seal with the corner of the tool box I am still waiting on time to get the cams and new balancer installed, as well as the repairs to the boot Time will not be an issue soon though
×
×
  • Create New...