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Location:
sunny coast, qld
Registered:
October 2002
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external wastegate screamer pipe diameter
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Tue, 18 January 2005 09:31
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I have a 650hp turbo kit that uses a 50mm external wastegate. There isn't very much room to fit the screamer pipe off the wastegate. So I wondering what the affects of running a smaller than 50mm pipe off the wastegate would be?
I know that there is quite a difference in low boost handling between say a 35mm and 45mm wastegate so I am not sure if going from a 50mm wastegate to maybe a 25mm pipe would be a good idea. If anyone knows anything about this, that would be very helpful.
thanks
Chris
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I supported Toymods
Location:
melbourne
Registered:
June 2002
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Re: external wastegate screamer pipe diameter
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Tue, 18 January 2005 09:40
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im going to assume this car wont be street registered...
i higly recommend you uset he 50mm/2 inch piping all the way, if you go down in size to one inch it will cause a restriction, possibly not a great feal but i wouldnt take the risk. in my mind, if you can fit a one inch pip, you can fit a two inch pipe.
might require some redesign of the turbo manifold, but keep it 2 inch.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: external wastegate screamer pipe diameter
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Tue, 18 January 2005 21:45
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the car is registered but it will be mainly used for drag racing. The screamer pipe won't actually open for a long time with this turbo as well as the hiperboost wastegate control.
I thought this would be the answer but was just after some opinions to back that up  I can fit the 2" pipe but it has to avoid the steering rack which I though would be easier using a smaller diameter pipe. It goes to the mechanics in the next couple of weeks so I suppose he can work that one out.
Already had to get manifold shortened just to fit the wastegate in there! Not much more I can do.
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