Dyno Tune

[AngryRB]

Have you read the thread? I'm struggling to understand why you'd ask that given the half a dozen posts so far...

All the replies clearly say you won't MAKE extra power, torque, or BOV noises swapping the AFM.

sorry just trying to figure out at what point the 20cells for example max out, say for example if the 20cells span from idle accross to 225kw and your making 250kw's, then i was wondering if the z32 then becomes better for tuning and better graph, or do you somehow guess what the voltage would be or somting, my knowledge is lacking here so thats why im asking.

[JonnoHR31]

your getting mixxed up. the ecu simply reads the afm voltage and uses this to determine load and therefore the correct amount of fuel and timing. all nissan AFM's max out at 5.1v, but they dont flow the same amount of air at 5.1v. the standard rb25 afm's hit 5.1v at around 200-240rwkw, depending on the car, and run out of resolution, the car can still make more power but having the afm maxxed out makes tuning above that rough and dangerous. a z32 afm is simply calibrated differently and flows more air before maxxing out, which allows the ecu to accurately measure load up to a higher power level.

the afm does not max out at the same point as the ecu's load cells, in the power fc example i gave the standard afm would max out around p15 or p16, just over half the load of the last load point of the map. the ecu uses the afm to determine load then uses the map (load vs rpm) to determine fuel and timing, they're seperate things.

[AngryRB]

your getting mixxed up. the ecu simply reads the afm voltage and uses this to determine load and therefore the correct amount of fuel and timing. all nissan AFM's max out at 5.1v, but they dont flow the same amount of air at 5.1v. the standard rb25 afm's hit 5.1v at around 200-240rwkw, depending on the car, and run out of resolution, the car can still make more power but having the afm maxxed out makes tuning above that rough and dangerous. a z32 afm is simply calibrated differently and flows more air before maxxing out, which allows the ecu to accurately measure load up to a higher power level.

the afm does not max out at the same point as the ecu's load cells, in the power fc example i gave the standard afm would max out around p15 or p16, just over half the load of the last load point of the map. the ecu uses the afm to determine load then uses the map (load vs rpm) to determine fuel and timing, they're seperate things.

thanks thats the answer i was looking for, good info..

[GD2ILA]

Sorry, my bad. Poor choice of wording on my part .

Lesson learnt.

[89CAL]

Sorry, my bad. Poor choice of wording on my part .

Lesson learnt.

Lol

BTW. did you forget how to count in your sig?