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Is My Nistune Maxed Out At 310rwkw And Stock Afm Maxed Also?

boobeedoobee
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boobeedoobee Community Regular

boobeedoobee

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My 32 gtr has a Nistune running 310rwkw. It has e85 1000cc injectors hks gtss turbos dumps exhaust.. from what I have read I have now maxed out my afm. I was thinking of buying the nismo afm and getting a haltech ecu. Is this a good option or do I just need to upgrade my afm?

jay-rod Proficient

jay-rod

Posted
Posted (edited)

Tuner can tell you.

Once you know, get rid of AFM and go MAP.( adaptronic or haltech plug in )

That said, you can still go beyond the limits of AFM's

EDIT

I remember Matt saying from there testing the limit is around 370kw for a single z32
Could try a HPX maf, but i would just replace the ecu if you are looking for over 400kw

Edited by jay-rod
breaker1845 Community Regular

breaker1845

Posted
Posted

Either you upgrade the AFMs to Nismo and you retune and get a better result, probably to the point where you max out the injectors/turbos and other components become limited.

Or you get rid of the Nistune ECU and buy another ECU and go with a MAP based sensor and forget about AFMs all together and tune the new ECU to the point where injectors/turbos and what not will be limited.

jay-rod Proficient

jay-rod

Posted
Posted (edited)

Measures the absolute pressure, which in turn allows you to mitigate the negatives of a AFM.

Eg, reverbaration, dirty afm affecting the signal, removes pretty much any limit on max airflow.

Atmos based blow off valve will not stall an engine
Comming off throttle will be alot "Smoother"

A pressure line will run to a sensor ( think of it like a boost sensor ).

This sensor will either be external, or internal to the ECU.
Most plug in ECU's use internal map sensors, and would be what you want.

You then remove the need for a AFM, and take them completely out of your engine bay.

And run a single boost line to the map sensor

Edited by jay-rod
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boobeedoobee Community Regular

boobeedoobee

Posted
  • Author
Posted

Measures the absolute pressure, which in turn allows you to mitigate the negatives of a AFM.

Eg, reverbaration, dirty afm affecting the signal, removes pretty much any limit on max airflow.

Atmos based blow off valve will not stall an engine

Comming off throttle will be alot "Smoother"

A pressure line will run to a sensor ( think of it like a boost sensor ).

This sensor will either be external, or internal to the ECU.

Most plug in ECU's use internal map sensors, and would be what you want.

You then remove the need for a AFM, and take them completely out of your engine bay.

And run a single boost line to the map sensor

Thanks it seems like this is a common question as to which is better? Afm or a plug in ecu which eliminates the afm? The general consensus leads to deleting the afm and spending the money on an ecu? A pair of nismo afm is going to cost 800ish I'm thinking this could be money better spent on an aftermarket ecu
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

My 32 gtr has a Nistune running 310rwkw. It has e85 1000cc injectors hks gtss turbos dumps exhaust.. from what I have read I have now maxed out my afm. I was thinking of buying the nismo afm and getting a haltech ecu. Is this a good option or do I just need to upgrade my afm?

You can't tell that your AFM and Nistune is "maxed out" by reading. Your tuner will tell you when that happens. How many turbos and how many afms do you have? I doubt anything is "maxed out" at 310awkw..if your tuner can't tune it because of the afms get a couple of RB25 afms.

Yes a Link would be great if money is burning a hole in your pocket but the ecu, map sensor, temp sensor, installation and tune won't leave much change out of $3k

boobeedoobee Community Regular

boobeedoobee

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  • Author
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You can't tell that your AFM and Nistune is "maxed out" by reading. Your tuner will tell you when that happens. How many turbos and how many afms do you have? I doubt anything is "maxed out" at 310awkw..if your tuner can't tune it because of the afms get a couple of RB25 afms.

Yes a Link would be great if money is burning a hole in your pocket but the ecu, map sensor, temp sensor, installation and tune won't leave much change out of $3k

won't a haltech platinum pro plug and play eliminate the need for any of those?
boobeedoobee Community Regular

boobeedoobee

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  • Author
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Just bought a hpx airflow meter from Nistune. All going well it will be getting tuned on Friday. Nistune say its goo upto 800hp.

What did they cost for the pair if you don't mind me asking?

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