Jump to content
SAU Community

Recommended Posts

ill keep this short and easy to follow/read

car= r33 gtst (drift car)

problem= only 200rwkws when should have at least 240 (really need the extra 40 for my drifting). on the dyno it shows 18 psi then drops down to 13 around the 6000rpm mark.

things we (tuner) have tried = made all new cooler pipe, took front facing plenum off and machined it to make it fit nice and tight, tried 3 dif boost controllers 2 ebc and one bleed valve boost controller, i know the turbo is good cuz it came off my mates car working perfect giving him 240rwkws at 16psi with same set up as my car.

my tuner said it might be leaking boost from the head or something :wacko: i have no idea and this is giving me the shits.

my car has been like this for over a year now, please help me, im almost ready to give up!!!

Link to comment
https://www.sau.com.au/forums/topic/266307-need-help/
Share on other sites

weak actuator spring....

plenum gasket leak.....

and if ur running an aftermarket bov. depending on brand, it could be weak

Get a boost leak test done whilst uunder load on the dyno. tuner should have thought of that...

good luck

Edited by R33GOD
Link to comment
https://www.sau.com.au/forums/topic/266307-need-help/#findComment-4550321
Share on other sites

tried 2 actuators, he machined the plenum incase it was the gasket, he installed a stock plumb back bov so could be that but doubt it cuz it was doing the same thing when i was running no bov. yeh i need to get him to do the boost leak test for sure, this has got me stumped. thanx for the replies

Link to comment
https://www.sau.com.au/forums/topic/266307-need-help/#findComment-4550576
Share on other sites

  • 4 weeks later...

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

    • Just trying to get my head around this. At 5psi of boost, you turn on your wmi pump, and then you're using a 3000cc injector, to allow flow upto the actual engine, where you have your 6x200cc injectors and a 500cc injector. If the above is correct, what advantage are you obtaining by having the 3000cc injector blocking flow, is this just incase a line breaks between that injector and the motor you can stop flow immediately? Or are the 6x200cc and 500cc less injectors and just spray nozzle?
    • Welcome! New member myself, but I had an R33 back in 2002. Best advice I could give, based on my experience: if you're running the factory turbo, be very conservative with boost. I made the mistake of just fiddling around with the boost controller and cranking the boost for fun, and the end result was my intake pipes popping off frequently from the constant deluge of oil that was being blown into the recirc by the stressed-out turbo, which itself was siphoning oil from the engine and farting it out both sides of its centre bearing (or something to that effect). If I could do it all again, I would have gotten a new turbo and had a tune dialled in professionally and then just left it alone! Funny you mention the metal shavings in the gearbox, as I had the same thing - the probe plug (magnetic drain plug, essentially) would come out caked with shavings. At least it was doing its job. Not sure if that's just sacrificial wear and part of the deal, or if my gearbox was shagged, but I wasn't abusing it. Enjoy the R33 - they're a dying breed, and if they weren't $35k+ on CarSales in Queensland, I might have picked up one of those again, instead of the 370GT I own now (though I'm loving the 370GT, that big 3.7L V6 just hits different).
    • Howdy folks. I owned an R33 back in 2002, which was thoroughly beyond my capacity (financially speaking) to maintain/insure, so we parted ways in 2004. Fast forward 21 years (to literally yesterday, in fact) and I'm now the proud owner of a 2007 V36 370GT. I'm happily surprised by how much power the VQ37VHR makes, compared to the RB25DET, considering the latter is turbocharged. I had planned to add a turbo at some point but I'm on the fence about whether I'll even need it (though I do love the sudden onset of extra torque). Any other 370GT owners around the traps, I'd love to hear about your experiences with this car (good and bad).
    • Perhaps the answer is... more jacks!* *proper jacks must be used.  
    • I NEVER think about using a scissor jack unless there is absolutely no other alternative. f**king things are dangerous, annoying and stupid.
×
×
  • Create New...