Jump to content
SAU Community

Afm Location Benefits

johnblack33

By johnblack33,
in Engines & Forced Induction

 Share

Recommended Posts

johnblack33 Enthusiast

johnblack33

Posted
Posted

hey all, i was just reading up on how some people suggest installing the AFM in the cooler piping, i did a search and coulnd'nt find anything on this site, but i was wondering if anyone would know the benefits (if there were any) of having an AFM installed in the cooler piping (after throttle body apparently), as apposed on having it on the intake piping of the pod filter.

cheers JT

Link to comment
https://www.sau.com.au/forums/topic/96538-afm-location-benefits/
Share on other sites
Craved Grand Master

Craved

Posted
Posted

i've considered this myself ..

my conclusion was that it may be affected due to the temp of the air passig through it at any given point ..

IE . after the turbo the air would be hotter than ambient.

after the intercooler . the air would be cooler..but closer to ambient temp

i thought that this may affect it due to the AFM being a hot wire type..

if anyone would confirm that would be great..

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

search button is generally a good spot.

use alternative words etc etc.

although AFM will have it, you'll just have to spend 5-10mins loooking through everything thats all as it going to get a lot of threads of various natures

rob82 Mentor

rob82

Posted
Posted

We often use post intercooler AFM in supercharged AU falcons as the standard length between throttle and AFM is about 30-40 cm. So when you introduce a intercooler with 2 meters of piping with the AFM placed before the supercharger you get a lean acceleration condtion on rapid throttle transitions. This only comes about because the standard ECU is calculating the air to be only 30-40cm away. That said the standard nissan ECU is calibrated so it expects the the pipe length, IC volume etc,ect into its calculations. It will have minimal effect if the AFM is placed before or after the IC as the AFM calculates the mass of air entering a cylinder.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Marek
      Hi everyone.

      By Marek · Posted

      Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Marek
      WGNC34 - floor mats

      By Marek · Posted

      Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
    • ARB26
      S1 Autech 260RS Wiring Diagrams

      By ARB26 · Posted

      I've managed to find this: Nissan_Stagea_AutechVersion260RS (1).pdf
×
×
  • Create New...