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Hitting A Wall At 4K

kawasakirider

By kawasakirider,
in Engines & Forced Induction

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kawasakirider Grand Master

kawasakirider

Posted
Posted

Hey everyone, my mate has an R32 GTS-T that has been experiencing some problems.

In first gear especially, when it gets to 4,000 RPM it completely shits itself and feels like its hitting a wall. That's the best way I can describe it.

The only thing that has been done to it is a turbosmart boost tee. I think the problem may lay here.

Not sure of what it could be, but the car doesn't seem (to me) much more powerful with the boost tee. I may be wrong. One of the lines we fitted wasn't a turbo smart line, it was a slightly bigger one because it was in an awkward position and the turbo smart line didn't want to go on. The line is held tight with a zip tie but I'm out of ideas so I'm just thinking about it...

I am thinking that maybe in first when the turbo spools quickly, it might create a boost leak with the line sliding down the nipple because it's not tight enough.

Is there anything else you guys could think of that would make the car behave like this?

How much of a power increase could be expected on a stock GTST with a boost tee?

Thanks in advance.

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hypergear Grand Master

hypergear

Posted
Posted

You might want to see how much boost its hitting with the boost T. Might not be getting enough fuel, or air or knocked so hard that it went into leap mod?

Won't be getting much power increase running a fully stock r32 gtst with just a boost T. and you might be seeing me soon with a broken turbo :turned: .

Aks your mate to run it on stock boost or spend some $$$$ to have it modified properly.

kawasakirider Grand Master

kawasakirider

Posted
  • Author
Posted (edited)

Yes stock boost and ECU.

He has an adjustable FPR to go on.

So he's hitting the fuel cut of the stock ECU, is there a limit that he can wind it up to without hitting that fuel cut?

Thanks for the advice guys. And who knows mate, I might just tell him to wind it up as much as he can and then convince him to get a high flow through you, haha! Jokes.

Edited by kawasakirider
GTSBoy Grand Master

GTSBoy

Posted
Posted

There is no way you will hit the fuel cut on an R32 with the boost set to a safe level. By "safe level" I mean "safe for the turbo". If you run it at no more than 14 psi or so (considered to be the upper limit for stock turbo survival) then it will not be pulling enough air to hit the fuel cut. If, on the other hand, you have the boost wound up to 17+ psi, then it will quite possibly hit the fuel cut.

But...if you do wind it up to 17psi, it will go like a cut snake up 'til it cuts. You will know that it is fast. And then the turbo will die and you will stop going fast, and quite possibly stop going at all.

My money is on a stuffed coilpack.

  • 2 weeks later...
040122 Collaborator

040122

Posted
Posted

Hey I've had the same exact problem in my 32 I started out with a boost t n EVERYTHING went to shit, It was surging n bunny hopping under acceleration, it turned out that the fuel pump had shat itself, I replaced the coilpacks with splitfires n got nowhere. Also u should tune it before upping boost just my thoughts

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