zachscalais

yeah true, but at the same time there should be something in the curve that would show that happening? and we should also be able to alter the severity of it by changing the values, none of this changed the point at which it happened. There was no excessive unburnt fuel smoke around the point. We could have ran lower boost which would have helped fault find, but didn't think of it at the time.

yeah pretty confident with it, got super spark coilpacks. Its not breaking down or missing as it ramps up. It makes power nicely untill that one point. Plugs are brand new, gapped to .8. Pretty standard stuff. If it was blowing out spark it should be getting richer if anything?

i had it tuned at godzilla with the old 550cc's and old turbo setup, and had no issues using the same afm's and ecu. And he didnt mention that I was nearly maxing out the table then, so im assuming it was fine a year ago. (even though that turbo would have been flowing a heap less air, probably similar on WOT to this 35r at 5000rmp.) hey thanks for the offer, but im in Bundaberg QLD injectors are delphi 1000's. i cant rember the fuel table figures off the top of my head. in a different town to the car atm. We didnt rescale the afm reference table because we added fuel to every reference point corresponding with the 5v in the fuel map but even that didnt help, which is leading more towards an ecu error rather them afm/afm table setup

that sucks, I dont know of anyone with another pfc I can borrow unfortuantly. Slowly saving for another ecu though, the track car is getting most of the money at the moment, its much more fun. Thanks for the info though

Hi all, having a bit of a problem tuning my gtr. Both the tuner and I are stumped so would love any input. Ill try and give all relevant detail, but if I miss something feel free to ask. My main issue is that its leaning out around 5000rpm at 20psi. I'll go through and explain all the details. The Ecu is a pfc. When it first leaned out we pulled the fuel pump, and it was the stock one still. I had never bothered checking it because I was told it was a nismo item (the previous set up had a hks ta45, log mani ect and had always held fuel pressure fine) I replaced that with a walbro gss 342 that I had at home (recommended by the tuner over a 040, also personal preference, people say it will be to small, but when I see a pressure drop I'll believe it) – It still leaned out Put a fuel pressure gauge on the end of the fuel rail, pressure did not drop at all The injectors are only at 65% duty (so they're not the issue) I have twin 25afm's which are confirmed by part numbers, and both sending equalish voltage signals (have tested these, one reads 0.2v lower then the other at idle regardless of what branch of the Y-pipe its on, but under no load at 2000rmp the are close to equal voltages) – I'm confident that these are not the issue. The airflow map is maxed out at 5500rpm (5v) Now its easy to say "get bigger afm's", however its proven many times that twin 25's on a 26 with a 35r will have enough resolution up to making 400rwkw. Despite the afm map being maxed, we should have been able to tune around this using all the rpm axis cells to at least prove that it was the afm's fault. All the cells in the appropriate section were given an overall correction of 30%, (I think ended up trying even higher) and it still leaned out at the exact same point. I've searched the net for many hours and there's not one mention of any issue like this. I've seen numerous setup with the same afm's and a turbo that flow much more air then mine with no issues. so in short, -the afm's are reading correctly -the fuel pressure is remaining constant (meaning fuel pumps big enough, not blocks in the filter, the line is adequate diameter and the injectors aren't using more fuel then they are receiving) -the injectors are large enough The only idea we have at the moment is that there's an issue with the PFC. No one I know has an ecu that they are willing to lend to test this, so it seems my only option is to get a new ECU to try. If I do, I will be going down the map sensor route as well. Power wise, with a fair bit of timing pulled out and no work done to the fuel map, cam gears not set up, it still made 390hp atw at ~5000rpm. My set up

Item Summary: Turbosmart Vee Port BOV & RB adapter like new Location: QLD: Regional - Bundaberg Condition: Great condition, had had minimal use, sat in my cupboard most of the time. minor scuff mark on the top Reason for Selling: Don't need it anymore Asking Price: $150 Delivery Methods: PickUp Contact Info: pm Extra Information: Turbosmart Vee Port blow off valve and 90' Turbosmart adapter to suit rb20 and various other 2bolt flanges. don't have actual pics at the moment, but can get some if anyone's desperate (its exactly the same as what Ive posted, minus the gasket and lines) Pictures:

SSold

bump, just been cleaned up and boxed ready for collection if you organise a courier

only for a pair of bronze cr kai's, 17x9 +17. money will be going towards them so i dont rely want anything else

few in brissy lined up for when i trip down there on the 21st, just seeing if anyone will come pick them up first.

bump it up, make an offer! want these gone, more pics

hey yeah still got em

nah its in Queensland, like towards the southern region. they're only 13mm off +17 are you wanting then for a 32? they sit flush on the front of my 32gtst with around -3' camber

Item: Pair of Work xt7 wheels Location: Bundaberg/Maryborough Item Condition: near prefect condition with one minor mark Reason for Selling: I brought these for the front of my 32, however now that im starting to run rack spacers im after a bit narrower rims Price and Payment Conditions: $700 Extra Info: - high quality japanese rims, - 114.3 x5 stud pattern - 18x9.5 +30 offset. these are the 'deep concave' version of the xt7's - Work 'metal buff' finish - 235/40/18 tryres fitted however have camber wear and prob on/below legal limit. fine for track work - Manufacture date in 2009, so only a year old! *will swap for a pair of Bronze cr kai's either 17" or 18", no wider then 8.5" with offset less then +20 Contact Details: pm or email [email protected] Pictures:

manifold has been welded, the gate is sold. the pipe work is possibly sold, pending payment

ive done a similar thing, but using all rb26 stuff (bar I.T.B's). im guessing the end i have outlined will now have to plumb in before the single throttle body. seeing as it use to be on plenum side of the individual tb's and the other end connects to the vacuum chamber>vacuum bar on the head side of the old throttle bodies.

yes it will physically fit. ill pm with details

bump

sold

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Just to answer the question of how ive made it adjustable Ive attached some pictures. It uses the same method as other gates, the more you wind down the threaded shaft coming out the top the greater preload it puts on the spring, essentially making the spring stiffer and only opening at higher boost. I have it adjusted to 17psi at the moment.

will separate the gate and manifold. need them gone, make an offer!

bump

AFM's gone, $700 with no gate

finally found two pictures showing the bungs. I think ill just go ahead and use the top one. Would still be nice for someone who's done this to give a definite confirmation?