Who Uses Rb26 Power Fc - Need Some Help

[want_33]

i need the gtr afm values from the afm voltage lookup table. if someone can help me with these i would be extremly gratefull

thankyou

[STATUS]

have you got fc-datalogit? if so i can email it.

[want_33]

Trent i dont, i didnt feel comfortable asking you for any more help as i understand your a buisness. Im assuming cause i dont have the software that i probly cant do this myself? Im more than happy to send the power FC to you and pay you if you are willing to help out? also if you could leave the basic rb26 map in it for me? as it currently has a tune for 260kw for a big single and 720cc injectors. the 26 going in will be stock for 6 months or so. Pm me if you can help out so we can sort out some payment. Wish i was closer to you id just drop the bloody car off to you and be done with it.

[paulr33]

if its going back to stock a simple DATA INIT will load the default maps, AFM ramps and all the settings

obviously you will loose your current tune if you do this, but thats the sure fire way

or do you just need to revert to stock AFM ramps and keep everything else modified as-is?

its a 5 minute task in datlaogit to load the stock AFM ramps

[want_33]

well its a rb20 power fc with a tune, and im converting it to run my new rb26....

[GTRNUR]

Have a look in the folder that you installed FC Edit universal and you will see there is a bunch of maps that get installed with it. There is an R34 GTR RB26 v8.0 something map there as well. You can use the software to open the map offline and get the data that you need that way. All the GTR maf sensors have the same scale so using the R34 map for reference will be fine.

Edited December 14, 2010 by GTRNUR

[STATUS]

Trent i dont, i didnt feel comfortable asking you for any more help as i understand your a buisness. Im assuming cause i dont have the software that i probly cant do this myself? Im more than happy to send the power FC to you and pay you if you are willing to help out? also if you could leave the basic rb26 map in it for me? as it currently has a tune for 260kw for a big single and 720cc injectors. the 26 going in will be stock for 6 months or so. Pm me if you can help out so we can sort out some payment. Wish i was closer to you id just drop the bloody car off to you and be done with it.

where are yo located?

i only ask as i am in and out atm. It would take 5mins to make something up map wise and would be happy to do it. how soon could you get it to me?

[blitzkreig]

Have a look in the folder that you installed FC Edit universal and you will see there is a bunch of maps that get installed with it. There is an R34 GTR RB26 v8.0 something map there as well. You can use the software to open the map offline and get the data that you need that way. All the GTR maf sensors have the same scale so using the R34 map for reference will be fine.

the fc datalogit base map for the rb26 is based on what octane fuel?

[DVS JEZ]

Loading the base map still isnt goin to be ideal. Needs to have a decent tune in it.

[GTRNUR]

Loading the base map still isnt goin to be ideal. Needs to have a decent tune in it.

+1

The base maps are enough to get your sensor calibrations correct and to drive off boost, but you certainly couldnt drive it on boost.

One other thought... If your going to use twin GTR maf sensors on an ecu with only one MAF sensor input you are going to have a tune stability issue. There is always some difference between the output voltages of both sensors.

The GTR ecu uses a mathmatical calculation that adds the two voltages (maf sensor values) together to work out the actual airflow. You can not do this with the RB20 pfc so the active load point will be off on occasion by at least 1-2 load cells.

Tieing the two maf output signals together will not work. Their values must be read independantly and then processed. Your only option will be to use a single maf sensor, and have a single air input path to the engine.

Edited December 14, 2010 by GTRNUR

[R31Nismoid]

if you are putting in a stock 26, simple...

use a factory 26 ECU. it'll be fine to drive around on and just out the PFC under your bed till you need it again

[want_33]

i was always planning to run the standard ecu, i just read something trent posted that i thought opened my options up a bit. if that much of a problem i will just run the stock ecu.

I was always planning to have it tuned after the power fc install. just assumed it wouldnt run with rb20 tune it... thus asking for the stock 26 map

[STATUS]

Tieing the two maf output signals together will not work. Their values must be read independantly and then processed. Your only option will be to use a single maf sensor, and have a single air input path to the engine.

ive dioded them up in the past on 1 car, not ideal but from a tune and driveability perspective you would never know. maybe i got lucky but as long as the afm curve is smooth it should be ok.

other option is to run one z32 in the cooler pipe.

[J - Rad]

Quick question to clarify.

The R32/R33 GT-R PFCs are the same item? Can I use the R34 GT-R PFC in my R32 GT-R? Been looking around for some answers some where but cannot seem to find any.

[R31Nismoid]

32/33 same.

34 = not same.

due to the coil setup i believe.

[Beer Baron]

yep nismoid has it. 32/33 same. 34 different.

[Don Dada]

^^^ Coils have internal ignitor , CAS is wired different and most important NATS - nissan anti theft system which will only allow it to work on the R34

[paulr33]

and the physical loom plug is different, so even if you decide to be super crazy and pin swap, the physical plugs are different

[J - Rad]

Cheers guys. I knew something was different about the 34R PFC, just couldn't quite remember what haha.

Also, worth paying that little bit extra for the new PFC and EL hand controller? Will that fix the missfire that the 32Rs get with the PFC?

[STATUS]

and the physical loom plug is different, so even if you decide to be super crazy and pin swap, the physical plugs are different

nah they are the same.

PFC negates nats

and cas wires need swapping.

EL Hand controller is the best marketing rort since since Y2k compliant calculators..... i hate them.