Nistune, Power Fc, Z32 Maf Questions

[Carthik]

I am in the process of rebuilding my RB26 and think i am going to go with Garett 2860R/2860RS and have a few questions. I want to use the cheapest engine management possible but I do want to use the FULL potential of the 2860R/2860RS. I was hoping to go with Nistune as its the cheapest option. My question is do I need to upgrade to Z32 MAFs to max out the 2860/2860RS? How many Z32 MAFs are needed (1 or 2)? Reason I ask because I believe the cost of new Z32 MAFs are around 300 each, so at 600+500 for nistune that would put me at 1100 when Apexi Power FC is only 1000. And if I use the Power FC will I still need the Z32 MAFs because my next option would be to run an AEM EMS plug and play ECU with a map sensor for 1700.

TIA

Carthik

[DVS JEZ]

Nistune with tune will be 1000ish + 600 for

Z32s

Power fc 1000+ 700 tune + z32s

Ems, haltech etc 1700 + 700 tune and any wiring changes etc

[paulr33]

you need to upgrade the airflow meters when you max the std GTR items

from memory this is just over 300awkw on the GTR (someone else could correct me)

you have options of

djetro map sensor

twin nismo AFM's

twin Z32's

djetro map sensor will read pressure to guess "air volume" and work off that

nismo AFM is z32 hotwire sensor inside GTR AFM shell, so its still 65mm, to make it easier to mate up to std pipework and ducting

Z32 AFM is z32 hotwire sensor inside 80mm (GTST style shell) so its 80mm, you will have to get adapters etc and pipework to suit 80mm instead of 65mm

both Z32 and nismo's should give you same power level, however twin nismo's gives more resolution down lower as the snout is smaller (better low load resolution)

nistune or powerfc should give you same results if tuned properly

ie the powerfc wont make more power or less

ask your tuners how long and how much to tune either and more importantly, what they prefer

the GTR djetro is pretty bulletproof from memory and a well supported setup

but it still requires twin map sensors, so its costly as well

single MAF or single map sensor on GTR is not recommended

in actual fact the GTR ecu uses averge from both sensors, so you could dummy up the signal wire

but its average for a reason and recommended to run twin of whichever to get best accurate result

why mac-gyver something up so important to save 200?

[Carthik]

Thanks for the replies, cleared up all my questions! So Nistune with either z32 MAFs or Nismo Mafs should be able to give me the full potential of the 2860Rs right?

I will probably go with the Nismo MAFs. What is the cost of the Nismo MAFs? Good place to purchase them?

For future reference if I decide to upgrade my turbo(s), what amount of power would the Nismo MAFs limit me to?

Thanks again,

Carthik

Edited May 3, 2011 by Carthik