Pages: 1 [2]
Author Topic: What maf diameter for a 700 hp engine on a me7.5 controller?  (Read 4301 times)
sda2
Full Member
***

Karma: +19/-1
Offline Offline

Posts: 69


« Reply #15 on: January 20, 2023, 01:39:21 AM »

Yes on 4F 4.2 MPI BAT engine is M7.1.1 ECU with C167
And it use HFM6

EDIT: or maybe is not, I can't find MSHFMTPH in 4F file, but once when I tried to connect MAF signal from 2.7TT to 4.2 ECU I didn't read any airflow

When looking at parts list for 4F 4.2 BAT is find Bosch 0 280 218 069 which is HFM5 unfortunately Sad
Logged
BlackT
Hero Member
*****

Karma: +79/-40
Offline Offline

Posts: 1422



« Reply #16 on: January 20, 2023, 02:56:21 AM »

Yes that's right  Undecided
What about function for EGT, it read freq from EGT sensor
Maybe we can use that timer, I didn't look how function look and is this possible, only idea beacuse EGT output is Hz, and Maf is kHz
« Last Edit: January 20, 2023, 03:44:04 AM by BlackT » Logged
tao13
Sr. Member
****

Karma: +17/-46
Offline Offline

Posts: 460


« Reply #17 on: January 20, 2023, 11:48:12 AM »

I asked about map sensor for speed density not for stock file with maf.


No, a MAF is not useless, putting the stock MAF into a 90mm tube is useless because the tube is so big that the airflow won't be properly read there at idle anymore due to swirling.
Using something like a HPX element in a normal sized tube will work perfectly file.
Logged
prj
Hero Member
*****

Karma: +1021/-433
Offline Offline

Posts: 5871


« Reply #18 on: January 20, 2023, 05:34:09 PM »

I asked about map sensor for speed density not for stock file with maf.
Nobody was talking to you, and this topic is not about speed density.
Logged

PM's will not be answered, so don't even try.
Log your car properly.
tao13
Sr. Member
****

Karma: +17/-46
Offline Offline

Posts: 460


« Reply #19 on: January 21, 2023, 01:15:50 AM »

Yeah , yeah, ok genius!




« Last Edit: January 22, 2023, 04:21:01 AM by tao13 » Logged
Kejsi
Jr. Member
**

Karma: +1/-1
Offline Offline

Posts: 44


« Reply #20 on: January 21, 2023, 04:58:16 PM »

As the author of the topic, please calm down. Prj may not be the most polite forum user but he will always advise me
Logged
Pages: 1 [2]
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.02 seconds with 17 queries. (Pretty URLs adds 0s, 0q)