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Gtir Motorsport club » Tech room » Help and Advice » external wastegate and bleed valve

external wastegate and bleed valve

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1 external wastegate and bleed valve on Sat May 23, 2015 8:50 pm

Stu

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Is this plumbed in correct?

I cant get more than .8bar of boost Sad
I have wound the bleed valve right out and it still sits at .8bar.
I have removed the bleed valve and plumbed the vacuum into bottom of the wastegate and vented the top off and still only .8bar Sad
I was told it's a 1.4bar wastegate.


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2 Re: external wastegate and bleed valve on Sat May 23, 2015 9:03 pm

johnny gtir

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What turbo is it stu ? Actuator ?

3 Re: external wastegate and bleed valve on Sat May 23, 2015 9:06 pm

Stu

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Gt2871r turbo and was told it's a forge external actuator mate.


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4 Re: external wastegate and bleed valve on Sat May 23, 2015 9:10 pm

johnny gtir

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Don't take this as right stu should it not come off turbo into a tee into bottom into bleed valve out bleed valve into the side and pipe off top to plenum or am I getting mixed up

5 Re: external wastegate and bleed valve on Sat May 23, 2015 9:13 pm

Stu

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I have no idea mate lol the standard one does tho dosnt it?
I'm shit with the vacuum mate lol
This comes from the plenum to the external wastegate.


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6 Re: external wastegate and bleed valve on Sat May 23, 2015 9:14 pm

Stu

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Also my screamer doesn't scream Sad


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7 Re: external wastegate and bleed valve on Sat May 23, 2015 10:30 pm

Stu

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Is this nut done up to much?


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8 Re: external wastegate and bleed valve on Sun May 24, 2015 12:23 am

gtir_woody

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Not sure about the boost problem stu but from my understanding it's plumbed correctly

9 Re: external wastegate and bleed valve on Sun May 24, 2015 10:54 am

gtir_pimp

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Is that an actual bleed valve or is it a Dawes type device with ball and spring inside? The Dawes type devices with ball and spring work by winding them in for more boost, have you tried that?

10 Re: external wastegate and bleed valve on Sun May 24, 2015 11:13 am

Stu

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Thanks for replies. Yes it has ball and spring.
I will try winding it in fully then.
Has anyone else had to take the feed from the plenum? My turbo doesn't have a nipple..


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11 Re: external wastegate and bleed valve on Sun May 24, 2015 12:05 pm

gtir_woody

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I've had the feed from the plenum before without any problems. My turbo didn't have a port earlier so I drilled the intercooler pipe right before the turbo and put a fitting in

12 Re: external wastegate and bleed valve on Sun May 24, 2015 1:06 pm

Stu

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@gtir_woody wrote:I've had the feed from the plenum before without any problems. My turbo didn't have a port earlier so I drilled the intercooler pipe right before the turbo and put a fitting in
I was thinking of doing it this way.
Did you have better results like this Woody?


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13 Re: external wastegate and bleed valve on Sun May 24, 2015 9:42 pm

gtir_woody

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To be honest stu only had a run in tune with the feed in the intercooler pipe but there wasn't problems reported.

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