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rb25 power FC basemap

zinkrb250

By zinkrb250,
in Engines & Forced Induction

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zinkrb250 Enthusiast

zinkrb250

Posted
Posted

Hey fellas... I've been doing some searching and have come up with a very vague answer to my question...

I'm in the market for a PowerFC+Commander for my rb25 powered s14.....

I've found a company on ebay who sells them for (us) 870+45(shipping).. this is the ecu and the commander.

My problem however... is I'm in the States.. And no one... NO ONE around here has datalogit software to tune the FC....

I have located a few shops that can tune using the software... but it is something that i will have to buy in order to be tuned... Money is an issue in this circumstance because i'm inbetween jobs right now...

Therefore, I am toying with the idea of purchasing the power FC... and waiting until i have the funds to get the software+converter and a dyno tune session..

Which brings me to my question... How does the rb25 run with the set basemap? I have read that it's actually quite conservative... Also, how would these basemaps perform if I were to run them for over a period of 6-8 weeks with out tuning?

Thanx for your knowledge gentleman it's been a pleasure.

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tang0 Proficient

tang0

Posted
Posted

you dont need the datalogit to tune the pfc, it can be done with teh handcontroller without any issues, datalogit makes it easier to read and a has a few little extras the h/c does not - these are not really needed for a full on tune tho ...

looking at your sig, you have yet to upgrade injectors ??? with the rest of those mods, i'd make it the next mod over a pfc, dont want to run too lean now !

personally i had my pfc sat on my desk at some for a number of months before i was ready for a tune - needed to get all the mods i wanted done before the pfc was tuned ..

thats just imho anyway

zinkrb250 Enthusiast

zinkrb250

Posted
  • Author
Posted

You are correct, i am still running with the original injectors... I thought it was neccessary to upgrade the computer to even run bigger injectors. I'm not sure of the path i want to take...

save more money... get powerfc, injectors, 90mm maf, bigger turbo +dyno tuning...

It would make more sense to save myself some money in the long run to wait until i can buy all of these at once. That way i wouldn't have to keep being retuned with each individaul upgrade.

I'm currently suffering from MOD-ILLNESS.... i can't stop even if i don't have money!

Any opinions? suggestions? insults? Everything is welcome!

bangahh Community Regular

bangahh

Posted
Posted

hmmmmmmmmmm

i drove 6000k on base map power fc. did 600k per tank. however i had to fill up on 95 ron petrol, the car knocked alot when acellerating from 3000 - 3500rpm or when i droped it into 4th to overtake and knocked alot at about 4000 rpm.

being in america you will be using 91 ron or 95, so i might wait to get it tuned properly first before you put the powerfc in. so they can tune it to your petrol as it was originally meant to be run on japan petrol of 100 ron.

the stock cpu will just make your car run rich to stop it from knocking. Im back on the stock cpu until i can afford to get a proper tune.

:-)

my 2 cents

Sydneykid Grand Master

Sydneykid

Posted
Posted

Stick the PFC in on the base maps, it should be fine. You prety much have the usual mods that Apexi set the base maps for. I would suggest 95 ron fuel plus some octane booster (cheap in the US). Watch the knock, if it gets too high, simply retard the static ignition timing. If it looks a little lean on the plugs or exhaust pipe, you have an adjustable fuel pressure regualtor and a capable pump, turn up the rail fuel pressure a bit. That will fix any leanness.

I have run many RB25DET's on the PFC default maps, just be careful, watch the knock levels and the spark plug colouration. :)

zinkrb250 Enthusiast

zinkrb250

Posted
  • Author
Posted
Stick the PFC in on the base maps, it should be fine.  You prety much have the usual mods that Apexi set the base maps for.  I would suggest 95 ron fuel plus some octane booster (cheap in the US).  Watch the knock, if it gets too high, simply retard the static ignition timing.   If it looks a little lean on the plugs or exhaust pipe, you have an adjustable fuel pressure regualtor and a capable pump, turn up the rail fuel pressure a bit.  That will fix any leanness.

I have run many RB25DET's on the PFC default maps, just be careful, watch the knock levels and the spark plug colouration.  :rofl:

So injectors wouldn't be a neccesity at this point in time? I would like to get the PFC since it's going for such a great deal on ebay right now... There is a fuel station 15 miles away from my home that supplies race fuel (100-110 octane) But it's probably $4.50/gallon (US). Octane booster is cheap here in the states... If i did install the pfc prior tuning, ect.... would you reccommend booster every tank of fuel?

How can i tell if it looks lean on the plugs or exhaust pipe??

What knock levels would i need to be running in and what levels should i look out for?

Thanx mates i appreciate it! :cheers:

USRB25S13 Enthusiast

USRB25S13

Posted
Posted
So injectors wouldn't be a neccesity at this point in time?  I would like to get the PFC since it's going for such a great deal on ebay right now...  There is a fuel station 15 miles away from my home that supplies race fuel (100-110 octane) But it's probably $4.50/gallon (US).  Octane booster is cheap here in the states... If i did install the pfc prior tuning, ect.... would you reccommend booster every tank of fuel?  

How can i tell if it looks lean on the plugs or exhaust pipe??

What knock levels would i need to be running in and what levels should i look out for?

Thanx mates i appreciate it! :rofl:

I have been running Sunoco 94 on my RB25 with the PFC. I did back off the timing on the maps and riched them up a bit but other then that car runs ok considering I haven't dyno tuned it yet.

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