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MM2death

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Posts posted by MM2death

    R32gts-t White Smoke Diagnosis - Need Help

    in Forced Induction Performance

    Posted

    I set it up so the catch can still is in operation, but its now plumbed in between the r/h rocker cover take of point and where the air gets sucked in before the turbo if that makes sense! The PCV valve is still hooked up, so on decel, light throttle etc the crankcase air is still being sucked into the motor. So it filters the crankcase air going in before the turbo, and the other hose from the other cam cover is as it was standard

    Okay Chris, thanks for the reply, but i'm a little confused as to how you have set yours up. Could you try to explain it a bit better. I'll post a pic of my current setup in a minute.

    Scott

    R32gts-t White Smoke Diagnosis - Need Help

    in Forced Induction Performance

    Posted · Edited by MM2death

    R32 GTS-T

    RB20DET w/ 105000km's on odometer. Major service done at 95000km's.

    About a week ago after coming back from a drive which had some hard driving i got a whole lot of white smoke (white smoke with blue tinge, pretty sure it smelt like oil) coming from the exhaust...it would mainly do it after backing off the throttle. And it would also do it on idle. I noticed that when on boost the turbo made a different whistle noise.

    So i thought it was the turbo (It isn't a std turbo...but it's about the size of a 2530) and i took it off. There was no oil in the exhaust manifold. I took the turbo in to be inspected and the report came back showing only bearing wear etc and slight scoring on the seal plate. The seals were all okay. The turbo wasn't the problem, but i got it rebuilt anyway since they took it apart.

    I have done a compression test which showed all cylinders having about 130psi except one which was at about 120psi. What is considered good compression?

    If the turbo is okay, then I think this problem could only be caused by 3 things.

    1. Oil pressure/flow is too great into the turbo?

    2. Oil return line from turbo is obstructed?

    3. Blowby?

    I have a one way catch can set up on the engine (non-recirculating) and it had not collected much oil at all (hardly any), but i had noticed in the last couple months that the dip stick was having a tendancy to be forced out a little bit. Pressurised sump maybe? Could that somehow stop the oil from the turbo returning to the sump and be pushing it past the seals in the turbo to burn into the exhaust?

    So how could i be getting a pressurised sump and not getting any oil back out through the rocker covers? Could there be something wrong with the crankcase ventilation system? Is there a valve or something which relieves the sump of pressure and directs the vapour up to the top of the engine?

    I have the turbo back now ($660 later) but have not put it back on the car yet.

    Some expert advice would be greatly appreciated!

    Regards,

    Scott

    Edit: Pretty sure it's oil burning, not water vapour

    SAU Queensland

    in Queensland

    Posted

    Where are the membership packs is what i've been asking myself for ages. We we told that they were coming but nothing.

    Well i don't care anymore. $50 for nothing. What a joke.

    Sticker comes off my car now...why would i support a club like this.

    She's Here!

    in Queensland

    Posted

    was that stimp's old rb25 u got it there?

    car looks great.. guess it won't be long before it is all fixed :cheers:

    It looks like it's stimps' old RB25 cuz of the stuff (i forget what it was) that he coated the penum with....turned out that icky colour.

    Good luck Gord with the 32. You got a good deal.

    Scott

    Too lean? Dyno Graph Pic Attached.

    in Forced Induction Performance

    Posted

    "What boost would be optimum for a GT2530?

    So with the ECU the way it is, my A/F is not dangerous? But if i wanna get better fuel economy, it's best that i get it remapped if i plan to run this sort of boost? But how can the graphs be so different before i hit any boost? Can the ECU automatically detect whether the boost has been turned up?"

    Anyone???

    And Cameron, i've got upgraded pump but still standard injectors.

    Scott

    Too lean? Dyno Graph Pic Attached.

    in Forced Induction Performance

    Posted

    The dyno printout was all done with the same ECU.

    I just added more boost.

    Red line = 1.0 bar

    Blue line = 1.3 bar

    Green line = 1.4 bar

    I thought it would have been making more topend power at higher boost. A few months ago i had the car on the same dyno and made 194 rwkw at around 1 bar i believe, but did not match the midrange of my latest dyno (pic) with the 1.3 & 1.4 bar runs (20 rwkw less through midrange but about the same up top).

    It's an R32 GTS-T w/ GT2530, FMIC, 3 inch full exhaust, pod filter, and remapped ECU. Everything else standard.

    Let me know what you think.

    Cheers,

    Scott

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