Jump to content
SAU Community

Recommended Posts

  • Replies 89
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Dale's silver 33 gtst came off the rollers last night. standard engine with gtrs turbo, 550 jectors, gtr fuel pump, plenum, fmic and zorst.

255 rwkw at only 1 bar of boost and an excellent delivery.

Unfortunately dale wont get to enjoy it for a bit as his hicas crapped itself on the way home and the car is steering like a drunk on stilts. could be a good thing too with greasy roads and an extra 100 hp. :thumbsup:

  • 2 weeks later...

hahah yea :P, Well managed to fix the hicas up abit, but the suspension is still stuffed :unsure:

Lost the internet for a while so was unable to update. Tune went very well, as Noel said. Car has a very linear powercurve. very nice to drive, As said also Suprisingly with only 14 psi made 255rwkw, on a safe tune.

highly Recommend Mick from Signature. :)

chucked it on a dyno down here in bris and it reads 10kw higher. So I doubt Micks dyno is happy at all. Infact i think its smack on accurate.

regards,

dale.

RB25 stock ecu cannot be edited, I think however the R34 neo rb25's can recieve the "dr drift" style remap chip...

You could however use something like an apexi safc to map the afm's which can be quite benificial, however it depends on how far you wanta go with your car in the future.

R33 owners/RB25 users go for aftermarket ECU's, must commonlly the apexi powerfc as its easy to use and very cheap in compairson to others on the market.

However that said, its a bit hard finding them at the right price these days as apexi have stopped production of the ecu due to lack of supply of a certain chip from Nec.

yeh i knew all that, thats common knowledge these days, i can get pfc tomorrow if i wanted but iv got the car where i want it, but iv heard that production of the chips that can be used for rb25 ecu's has started again, well you could always get them but they were way to expensive equaled roughly same as install n tune of a pfc plus alot o dikin round..

anyways i went there today n hittin up a power run tomorrow to check my afr's n shit.. car isnt in ideal dyno state at the moment but iv got parts here waiting to put on so would like to se before and after runs

There are options for tuning the stock R33 ECU but they require working 3 chips at once and not many tuners do that. About the only I know that might is Dr Drift, but that isn't a recommendation.

Take a look at the ways some guys are approaching using a GTR32/33 PFC to overcome the lack of supply. There is info around the forum.

Yeah Geoff "Dr Drift" did have a solution for the stock R33 ECU however it was easier and cheaper to buy a pfc and tune it.

So in short it was deemed a non-practical exercise, plus most tuners know the pfc and can tune them well with a datalog as where the dr drift stuff is not distributed all that well.

You have limited options to getting that tuned in QLD, I believe Mercury is the only place that can as they bought the rights/software to it in QLD or something like that.

2gceffy, so your just dyno'ing to check where you at before you play with it yes? So what are you asking when you say "Does anyone know about stock ECU's?

As I must have missunderstood what your asking when giving my first responce.

just curious to see what he is knowledgable in, i started makin a 300zx ecu into rb25 but couldnt be bothered ay i lost interest, you only need to swap round some pins and piss off a heap. the 300zx runs vct so you can tune it to rb25 very easily and you can rom tune them like r32,s13 ect im lookin to running a high flow again n that so might try it again one day......

prob should start back up on that ahahah

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Probably too late to reply to this, but worth a try. It's not calliper flex, the calliper as a whole is moving so it has to be calliper mounting bracket flex.  Calliper mounting brackets are designed to stop the calliper rotating, they don't need to be designed heavy duty to stop the calliper moving in and out.  Whatever it is is not the major cause of poor pedal feel, the outer pistons are moving towards the disc rotor the same amount as the inner pistons are moving away from the disc rotor.  Hence no change in fluid usage, what extra fluid is needed to move the outer pistons is recovered from the inner pistons. For a calliper to move as a whole by far the most common reason is the rotor is not perfectly centred in the calliper.  The first thing I check is that hub face is perfectly clean, bare metal, where the rotor hats contacts it.  Then I check the that rotor is firmly held in place by at least 3 wheel nuts (or equivalent). If all of the above are confirmed to be in perfect alignment then I would check the piston sizes and ensure that the 3 inner pistons and 3 outer pistons have matching diameters (eg; 28/32/36mm).  I have seen a no name 4 spot calliper that had 1 of the 4 pistons a different diameter. Maybe I missed it, are both the callipers exhibiting the same problem? I would remove the transfer pipe and inspect it to make sure that there are no restrictions. Maybe you already have but if not I would return them with the video and have them confirm all of the above.   Hope that helps Cheers Gary    
    • If you have the original log book and it didn't have a chassis number quoted, then no money required.  I have "rechassied" a number of race cars, no problem as long as you have the original log book.   Cheers Gary
    • Well the good news is that it won't run any worse with an atmo bov than it does with no bov, I've owned a few Nissans over the years (r32, s15 and now r33), the stalling issue caused by a bov or no bov while still having an afm is easy enough to live with, most people get used to driving them and just feathering the throttle when you come to a stop to avoid it stalling. Changing to a proper ecu with a map sensor is ideal but in the short term I'd just slap in the bov if you really want the whoosh sound. I looked into the pass through type maf like the R35 one above but decided against it as the amount of oil and crap flowing through the hot side would mean you'd have to clean it often to keep it working.
    • Build an 800hp motor. Make it as bullet proof as you want, you WILL still break things. Like, the rest of the car. Heck, even as a dead stock car, things will still break, but the more power, the more everything else will let go easier. From gearbox gear sets, to extra stress on the chassis/mounts, more stress on diff, axles, tailshaft, even the suspension mounts. Check out the motorsport build that last year went to a Bosch motor sport ABS setup, and now can brake so damn hard it's twisting mounts for suspension/subframe etc. Now if the brakes can do it, imagine what happens with super grippy tyres and 800hp in a low gear...   Shit, I'm presently out fixing the girlfriends daily driver that rarely sees past 3,000rpm and is used to cart the dogs around in. Everything WILL break. If you don't want it to break, don't drive it. And then laugh, as it will still break without even being driven!
×
×
  • Create New...