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R32 Gtr Hks T04z Power Loss

godzl4
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godzl4 Rookie

godzl4

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Hi guys I've been having some problems with my gtr I have a hks t04z on a stock rb26.

The turbo makes boost (18psi) but there's no punch from the car anymore. When I first did the conversion it was super fast an put u back into your seat but lately it doesn't put u into your seat at all.

The boost gauge an greddy boost controller both say that 18psi of boost is made when driving but the car just does nothing.

I've checked all over for boost leak/vacuum loss all ok

I've replaced the clutch with a new twin plate.

Engine has 175-180 psi of compression

Wastegate seems to be working it's not stuck an vac lines R ok

The turbo has some play in the compressor shaft has some forward an backwards movement 1-2mm max an has some up an down too.

It does blow some white smoke from time to time.

Can anyone please help with a possible test or check I can do it sort the problem out I've done about all I can think of.

Thanks

Guys

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godzl4 Rookie

godzl4

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Yeah I have a haltech platinum pro with the wideband O2 kit.

I'm taking vac readings from the fuel reg port, stock boost gauge port an where the stock boost solenoid went.

An it's down on power to the point a stock v5 golf gti can pull away from me

( mine had 450hp 3 months ago )

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