Does Any1 Have A Pfc Map For Rb25?

[T-u-R-b-O]

hello,

i am looking for a rouph map of people that run an RB25 with ~500 hp ( =~ 367kw -> ~330rwkw) ... this is my setup:

stock rebuilt engine

PFC PRO w/HC

550cc

FMIC with 2.5" piping

Full 3" exhaust

z32 AFM

T4 Turbo

upgraded plugs

upgraded pump and fuel filter

HKS air filter

twin plate clutch

would be great if some1 could send me a map that is running well and producing this kind of power, because I can take it from there and edit it using my wideband O2 and dyno to make it perfect...

thanks!

nico

ps: my email is nbzahariev@gmail.com

[no_name]

hello,

i am looking for a rouph map of people that run an RB25 with ~500 hp ( =~ 367kw -> ~330rwkw) ... this is my setup:

stock rebuilt engine

PFC PRO w/HC

550cc

FMIC with 2.5" piping

Full 3" exhaust

z32 AFM

T4 Turbo

upgraded plugs

upgraded pump and fuel filter

HKS air filter

twin plate clutch

would be great if some1 could send me a map that is running well and producing this kind of power, because I can take it from there and edit it using my wideband O2 and dyno to make it perfect...

thanks!

nico

ps: my email is nbzahariev@gmail.com

yeah. ive got some maps for z32 and 2530. no quite that spec but its a hell of a lot better than the planejane stock powerfc maps. il attach them tonite as xls's.

ive tuned SR20 with 2530 and gt-rs with various injector sizes aswell. several rb25 maps in various states. and 4 or 5 rb26 maps aswell in various states of tune with diferent turbos and fuel systems.

ok. a few questions.

- is your fuel pressure set correctly ?

- is your ignition timing set ?

- what cams are you using?

bare in mind these maps will get you into the ballpark as goes fuel map settings and full load ignition.

Edited March 22, 2006 by no_name

[paulr33]

it would just be quicker and probably easier and safer to just tune it from scratch rather than loading someone else's map. also you are (or aim to be) well beyond the limits for stock internals, hope it doesnt go bang.

[Al]

What do you mean by stock rebuilt engine?

Did you use forgies, race bearings, etc, with stock compression and std head.

OR

Did you rebuild it with stock pistons, etc.

Hopefully you rebuilt it properly, otherwise you will be soon due for another build, with that power.

[T-u-R-b-O]

man, u guys need to have more faith into our engines ... fact is that they are RB (RACE Breed ), have I-6 and are 2.5l and are turbo engines with a very strong iron block... i was recently reading on here a thread where a guy is pushing his stock RB25 close to the 500hp border or so...

i have seen maany BMW 525i with STOCK I-6, NON-turbo engines with same displacement running 500hp and are still holding together after 1+ year of racing every weekend...

my engine rebuild included stock bearings, stock new piston rings, etc... the only modded part is the 1.6mm head gasket to lower compression a bit... unfortunatley, the cams will be the limiting factors, but i hope to get some poncams soonish...

@no_name:

hmm... fuel pressure is slightly higher than stock due to z32 fuel filter and upgraded fuel pump

ignition i recently set using this round thing (dont know the name in english) that is on the crank

cams are unfortunately still stock

thanks!

nico

ps: what a funny smilie

EDIT - just wanted to also mention that the great advantage of the RB its short stroke is which can allow reasonably high HP figures, with minimized risk of bending a rod a easily...

and also, i think that the RB25 can hold 500hp, if tuned properly and i anyway have holidays soon, and plently of time to make that wideband and dyno pay off

Edited March 22, 2006 by T-u-R-b-O

[thommo]

research how much power people here are running on stock rb25's. it's possible 280-300kw may not last you very long at all, let alone 330kw.

comparing a bmw inline 6 race engine (for it to have 500hp, i'd suggest just a little work may have been done to it) with a stock rb25 is not relative. saying that because they have the same displacement and capacity so therefore they are comparable, is kinda like me saying i have two arms and legs so therefore would be able to hold my own in a boxing ring with mike tyson.

my suggestion would be to go and get a professional tune, and have a chat with a tuner who really knows the limits of your engine and setup. the couple of hundred bucks could save you a lot of money and pain in the long run.

[T-u-R-b-O]

hmm... i did research and people like LNEMUP are running these sort of figures... its only been a recent tune in his case, but there where others (on nicoclub for example) which have been running between 450-500 hp for a long while already without blowing the stock bottom end...

but come on man, i had a CA18DET with just cosmetic mods running 304 hp and that on only a 1.8l 4 cylinder engine... so i am sure that the RB25 can take that extra 150-200 hp without getting hurt in the long time...

but hey, i am just looking for a map, and not to discuss this topic... i will go through with it, but I still thank for your advice...

i dont mind whether the map is for an RB25 with forged or not forged bottom end, as long its in the 450-500 hp area, and running simular setup to mine (550cc, z32 afm, t3/t4 etc) ...

Noooo_naaame, where are yoou?

nico

ps: how did u come up with "comparing a bmw inline 6 race engine"?? the 525i engine has nothing to do with racing? here they just tune it up, cause its dirty cheap to get a new one cause we have so many... the M Power series on the other hand could be considered an atmospheric race engine...

[R31Nismoid]

If a tracked GTR standard motor cant handle more than 330-360rwkw for extended time.

What hope does a RB25 have is the question i have to ask

[T-u-R-b-O]

then i would have to answer with the question what makes the GTR engine soo much better and stronger than an RB25 ... i have researched this on forums all over the world for a long time by now and have found out on several occasions that it cant be because of the minimal difference of displacement, nor can it be the rods cause i have seen comparison pictures and read reports on the differences of rods, and there is no significant difference... possibly the pistons could be slightly better and maybe the head of the 26 can flow slightly more, but does that make it resist soo more HP and punishment??

but that doesnt matter, since i am on the lookout for a goood map

nico

[thommo]

ps: how did u come up with "comparing a bmw inline 6 race engine"?? the 525i engine has nothing to do with racing?

i didn't come up with it -

i have seen maany BMW 525i with STOCK I-6 , NON-turbo engines with same displacement running 500hp and are still holding together after 1+ year of racing every weekend...

cheers mate, all the best

[T-u-R-b-O]

Aaaaahhhhhhhhhhh ... ups, misunderstanding

thanks mate

[Al]

then i would have to answer with the question what makes the GTR engine soo much better and stronger than an RB25 ... i have researched this on forums all over the world for a long time by now and have found out on several occasions that it cant be because of the minimal difference of displacement, nor can it be the rods cause i have seen comparison pictures and read reports on the differences of rods, and there is no significant difference... possibly the pistons could be slightly better and maybe the head of the 26 can flow slightly more, but does that make it resist soo more HP and punishment??

but that doesnt matter, since i am on the lookout for a goood map

nico

With a silly response like that, i give -up on this thread and have now un-subscribed to it.

Good luck

[T-u-R-b-O]

u know, i like such comments, because they are really motivating... in case nobody is willing to share their maps, i will make the 450-500 myself during my 2 weeks holidays, and post my dyno result just to prove u wrong...

[paulr33]

what on earth are you talking about? its nothing to do with proving anyone wrong. its basically not a good idea to share maps. i mean have mine for all i care, its on my rb25 powerfc DIY tuning thread, but that still doesnt make it a good idea. it would be quicker to tune it yourself or have someone else do it than fix or bandaid someone else's tune