R33 ECU's - What to choose?

[Guest INASNT]

Originally posted by DJ_L3ThAL

yer i got my powerfc done by ice, and nigel spent ages fine tuing it on ther dyno but still on cold nights and under differnt loads etc i got some pinging, i just noted when this happened and went back as i found new areas that needed fine tuning and we ironed them out within a week, think i onloy went back twice which was awesome considering now my car is 100%

ho did u know it was pinging?? was the knock reading over 60% on the h/c ?

[DJ_L3ThAL]

yer over 60% and the check engine light was flashing, around 60 isnt bad though, up near 80+ is bad, but i was sometimes getting up to 90, but thats all sorted now, i usually get 10-20 on stock boost (fanging it) and 30ish on high boost (fanging it)

[Jetdat]

this powerfc sounds interesting....

i have not owned or study it at all....although i did test drive an r33 which had one installed... it went nice and hard....

can you tell me how much they cost and where i can find technical info on them?

after using LINK, Wolf 3d, Haltech, seeing what motec can do and studying autronic, i would love to compare.

[Guest INASNT]

www.apexi.com

[rs73]

If u buy brand new powerFC , does it come with a base map that will prevent pinging, etc? Then you just plug it in and start from there to fine tune?

[Jay95R33]

rs73 - yepp, that's my understanding.

I've heard 'stories' of people pluging in a new PFC and gaining 15rwkw just from the base map it comes with..

Not sure how true this is, but sounds tempting.

J

[Al]

Originally posted by king_kw13

what are big power mods Al? Is big power mods defined as

- Larger Injectors?

- Aftermarket Cam Shafts?

- Aftermarket Turbo?

- FMIC?

- Big NISMO Sticker?

First three. Forth can be delt with by the apexi, and the fifth by the wanky ricers .

The best programmable ecu, is the one your trusted mechanic can tune. No use having a Wolf if he has only delt with a Pfc and isn't able to extract and use all features :uh-huh:.

But if you plan to change the first three items listed above, do the ecu first, as this alone will give you a noticable differance.

my 2c

Good luck with your decision

[rs73]

Al,

why you wouldn't wanna change factory IC with FMIC, considering with afm injectors, cam, & turbo?

what would be the factory IC efficiency is, don't think it will be effective for boost above 12 psi.

[Guest INASNT]

Originally posted by Jay95R33

rs73 - yepp, that's my understanding.

I've heard 'stories' of people pluging in a new PFC and gaining 15rwkw just from the base map it comes with..

Not sure how true this is, but sounds tempting.

J

u may get a slight power increase but the car will be pining off it tits as the fuel maps r based on jap 104 RON fuel

[Jetdat]

Originally posted by Al

The best programmable ecu, is the one your trusted mechanic can tune. No use having a Wolf if he has only delt with a Pfc and isn't able to extract and use all features :uh-huh:.

i wish it was that simple that the best ecu is the one your mechanic can tune the best.

Personally i would, and have always had my cars tuned by the workshop the particular ECU company recommended to tune, supply and fit.

[Al]

Originally posted by rs73

Al,  

why you wouldn't wanna change factory IC with FMIC, considering with afm injectors, cam, & turbo?

what would be the factory IC efficiency is, don't think it will be effective for boost above 12 psi.

The original question was: what do i consider big mods to justify a ecu replacement. If you only plan to go as far as a fmic i am suggesting to use a apexi safc to trim the fuel curve. Of course you need to replace that shitty factory ic. If you are planning a turbo upgrade, etc. than a replacement ecu is a priority.

my 2c