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9xx
Joined: 18 Jun 2006
Posts: 627
Location: Jarvenpaa, Finland
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 Posted: Wed Apr 01, 2009 2:44 am Post subject: Wastegate spring length |
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Do you have an extra 930/931 wastegate spring nearby on hand? Please measure the length of it accurately and maybe other dimension too.
Also report what kind of boost you know or think it produces.
The reason why I start this thread is because I have one spring on my hand at the moment but I have no idea what kind of boost pressure it produces. It is 169-170mm long. (6.65-6.69 inches)
length: 169-170mm / 6.65-6.69 inches
diameter: 68mm / 2.68 inches
boost: I'll tell you and edit it in here when I find out 
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Mikko
All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944 |
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morghen
Joined: 21 Jan 2005
Posts: 9102
Location: Romania
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| Posted: Wed Apr 01, 2009 3:22 am Post subject: |
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i remember there was a topic about this...ideola might have started it 
i can tell you that the stock euro spring makes the WG flush at 0.6bar of manifold pressure.
i dont know it's length but i will soon find out as i'm going to install a shim 
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Supercharger and EFI kits
https://www.the924.com |
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9xx
Joined: 18 Jun 2006
Posts: 627
Location: Jarvenpaa, Finland
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| Posted: Wed Apr 01, 2009 4:00 am Post subject: |
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| morghen wrote: | | i remember there was a topic about this...ideola might have started it |
Damn, I tried to search...
| morghen wrote: | i can tell you that the stock euro spring makes the WG flush at 0.6bar of manifold pressure.
i dont know it's length but i will soon find out as i'm going to install a shim |
I have the stock 0,65 bar spring in the car at the moment but I just played with the thought of having 0,8 bar spring (my extra spring). Please measure that spring you have, I'm interested in any information.
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Mikko
All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944 |
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morghen
Joined: 21 Jan 2005
Posts: 9102
Location: Romania
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| Posted: Wed Apr 01, 2009 5:36 am Post subject: |
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yea..i'm looking for a 0.8 bar spring myself...if you have one and want to sell it i'll buy it from you.
i'll let you know when i have mine measured.
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Supercharger and EFI kits
https://www.the924.com |
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