Jump to content
SAU Community

Recommended Posts

  • Replies 103.8k
  • Created
  • Last Reply

Top Posters In This Topic

  • GTS-t VSPEC

    20904

  • Nizmo

    13582

  • SHUTO-BOY

    6636

  • skyzerr33

    5353

MrGTST - don't worry man - I'd way be in the same boat.. thats why I'm still thinking of if I should compete or not...

What say I bring down a few helmets and we see what happens?

Anyone got a plan/where to meet worked out? Maybe we should meet up south perth way and all head in together?

"Don't be soft, it's easy.." I've heard and followed that advice before.. hehe.... tends to hurt...

But seriously - I'll be running with a 14, maybe 13.8 second car.. nothing flash so I can't see how I'm going to do anything cept for hurt my stock clutch some more..

OK fair enough.... Another question.... Is there a BP nearby that sells BP Ultimate??? I ask because since I boosted my car really chews through the petrol quickly... To the extent I am concerned about getting there and back on one tank of fuel!!! The cruise to Yanchep should be interesting too!!!

I dunno about that... Maybe its my lead foot but I use about a quarter of a tank just going to Scarborough and back and I live near Warwick so its not very far at all.... Dare I even try to drive the 40 plus K's one way to the Motorplex drag and try to get home :P

I think you could put it down to my lead foot and the fact that I am still enjoying the novelty of high boost all the time.... even when its not needed.....

"I think I will go to the shops .... that will require high boost for sure" :P

Guest
This topic is now closed to further replies.



  • Latest Posts

    • So I'll put filler past the repair area a bit to make sure I don't miss anything. Then I'll block it until it's almost level, put the guidecoat, then keep blocking until it's gone. Then it's still wavy.  In regards to hitting the panel, I saw this video might give more context - Skip to 0:47 he knocks it down. But yeah I'm sanding until the guidecoat is gone then checking because otherwise my filler is still well above the bodyline. Unless what you're saying is I should put guidecoat around it early, surrounding the filler then stip once it's gone?
    • I refreshed the OEM injectors with the kit and connected it up. It now ideals okay even with the IACV removed. Driving still has the same cutoff issue like the 550cc injectors so the issue is somewhere else. I bought FPG's Fuel Pump Hanger. I will be installing it next, but it is not as straightforward as I thought it was with my limited wiring knowledge and no instruction on the specific model I purchased (FPG-089). I also got the incorrect billet clamp as I could not find info on the OEM sizing.
    • Stop looking at the garage floor, and turn the radio up a bit louder if there's any strange noises...
    • No. Turbo shuffle and surge/flutter are not the same thing. Specifically, on a GTR, turbo shuffle has a definite meaning. On a GTR, the twin turbos are assumed to be the same thing and to operate the same way, exactly. In reality, they do not. Their exhaust sides are fed and exhaust a little differently, to each other. Their inlet sides are fed and exhausted a little differently, to each other. Consequently, when they are "working" they are often at slightly different points on the compressor map compared to each other. What this means, particularly when coming on boost, is that one of them will spool up and start producing extra flow compared to the other, which will put back pressure on that other compressor, which will push the operating point on that other compressor up (vertically). This will generally result in it bumping up against the surge line on the map, but even if it doesn't, it upsets the compressor and you get this surging shuffle back and forth between them That is "turbo shuffle" on a GTR. It is related to other flutter effects heard on other turbo systems, but it is a particular feature of the somewhat crappy outlet piping arrangement on RB26s. There are plenty of mods that have been attempted with varying levels of success. People have ground out and/or welded more material into the twin turbo pipe to try to prevent it. Extending the divider inside it works, removing material doesn't. There are aftermarket replacement twin turbo pipes available, and these exist pretty mush purely because of this shuffle problem.
    • You can temporarily* use lock collars to keep it in place until you can do the bushes, back the nuts off, slide them in, snug back up. *temporarily is often for ever
×
×
  • Create New...