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Posted (edited)

Just fitted external wastegate and its always open? Building no boost. Left the top nipple open? Think its a ebay special

Edited by Ollieh17
Posted

yeah thats the ring , i fitted mine without it when i bought it and i wondered why i couldn't get any boost lol :D


Posted

Got the sealing ring and the wastegate appears to have stopped leaking. However can only get 0.2 bar boost flooring it in 3rd and above. I've had a look and tightened up all the intercooler pipes. Not sure if its a boost leak or leak before the turbo meaning no boost is made? Nothing seems to be blowing though? Getting a bit annoyed. Now:(

Posted

Its a ebay one. Before it was obvious the wastegate was open as it sounded like a tractor. Now it sounds normally. Tried it with vac hose connected and unconnected

Posted

Thinking if it was a boost leak though i'd hear it? It would have to be pretty big to get no boost? If anything before the turbo was blowing surely that would make a obvious noise also? Other option is I only welded the actuator bracket shut not the actually wastegate flap on the turbo. Could it be this is leaking massively (previously ported)?

Posted

Thinking if it was a boost leak though i'd hear it? It would have to be pretty big to get no boost? If anything before the turbo was blowing surely that would make a obvious noise also? Other option is I only welded the actuator bracket shut not the actually wastegate flap on the turbo. Could it be this is leaking massively (previously ported)?

IT would be a fairly sizeable one yeah, so id probably say you would hear it

It could be a leaky flap. whip the decat off and have a look how well it seems to be sealed.

Posted

It appeared to be sealed well while off the car. With the wastegate fully open previously and the creep on ct9s id thought it still boost high partly shut!

Posted

8-9psi one. Yup vac hose from the turbo housing to bottom port of wastegate. Have tried it with and without the vac hose

Have you got the missing ring the correct way around? Unsure if would change anything...

And you have got thewastage on the right way? The ring which you bought and installed should be connecting to the manifold end.. scream end is the other

Posted

yup, put it on the wrong way round the first time, but swapped it. The ring is tapered, with the smaller end in the wastegate and the larger end flush with the manifold.

Posted

yup, put it on the wrong way round the first time, but swapped it. The ring is tapered, with the smaller end in the wastegate and the larger end flush with the manifold.

Im baffled.......

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