Forge Piston Diverter Valve and Forge Twin Piston Blow-Off valve - SaabCentral Forums
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NG900 & OG9-3 Performance, Mods & Tuning Covers Tuning & Performance modifications for the NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible

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  #1  
Old 2nd May 2011
condaddy condaddy is offline
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Default Forge Piston Diverter Valve and Forge Twin Piston Blow-Off valve

what is the differnce between Forge Piston Diverter Valve and Forge Twin Piston Blow-Off valve, and what exactly do they each do? and would use them together? any explantion would be awsome
sorry for the dumb question but answers would be appreciated
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  #2  
Old 3rd May 2011
SaabNineThree SaabNineThree is offline
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diverter for t7 cars, atmospheric for t5 cars
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Old 3rd May 2011
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The twin piston bov is meant to help with idle on our motors and was meant to be able to be used on t7 motors. But the only type of bov that can be used on a t7 motor is a forge split-r valve which is part atmospheric and part recirculating and is ajustable.
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Old 3rd May 2011
condaddy condaddy is offline
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so which one do i want for my car and what will it do
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Old 4th May 2011
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I'm guessing yours is a t5 as its a 99 like mine so you would be ok with a single piston valve. FMDV001GTI - Single Piston Ram Dump Valve . this is the 1 I use on mine m8 so take a look. Comes in different colours.
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Old 4th May 2011
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http://www.forgemotorsport.co.uk/con...uct=FMDV001GTI
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  #7  
Old 4th May 2011
condaddy condaddy is offline
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did this make ur pssssh sound louder than the stock one with an open air intake?
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Old 5th May 2011
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It makes a much louder noise than the stock valve. It's a definate head turner lol. Plus it makes mine smoother to drive, gear changes are smoother too. My valve was a good buy from ebay at 13 including postage.
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  #9  
Old 5th May 2011
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I'll post a pic when I get a chance.
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