MAFS Comparison

SON240sx Automotive
1

Hey guys,

Any idea on the stats of the following mafs?

  • Z32
  • Q45
  • S13 SR20
  • S13 KA24E
  • S14 KA24DE
  • R32 RB20DET
2

CA18DET= 190ps
S13 SR20DET= 210ps
S14 Sr20DET = 280ps
RNN14 SR20DET = 280ps
R32 RB20DET= 310ps
R33 RB25DET = 380ps?
R32 RB26DETT= 450ps
Z32 VG30DETT= 500ps

Hope this helps. 8)

3

Yeah, you’re right… That’s what I meant.

Thanks for those hp numbers up above. However, does anyone know anything about the S14 KA AFM? it looks black and similar to the 300zx.

Any idea if it flows more air?

4

Hey Phil,

If I get the Z32 MAFS, and use the SAFC to convert the signal, would that work?

5

Hey Denis,

Thanks for the stats. Any idea on the Q45 MAFS?

6

hey if i am running 7psi on my KA24DET with stock MAFS will it be ok? I never really read anything about the MAF maxing out?

7

hookup an SAFC to your car… and read the MAFS. See what it says. If you are reading 99.9 or 100% like mine, then it’s time to get a bigger MAFS.

8

[quote=“philip_240sx”]

The SR20 boys on Freshalloy do this all the time. I guess it’s a popular mod… that works.

Spend a few bucks and do a dyno run with a wideband O2 just to make sure the A/F is good. The S-AFC can be dangerous to your motor if improperly used/programmed.[/quote]

Thanks Phill!!

BTW, any idea where is a good shop to do the wideband O2 dyno?

9

thanks time to do more research. i would go with JWT but i dont wana wate for ever and i could pay the same and get dino charts hehe.