TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

What is better a blow off valve or bypass valve? HELP

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Old 07-30-2001, 02:03 PM
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Default The Turbo XS for our cars is a closed BOV or DV and works great....

The Forge was recently redesigned to have a aluminum piston because of sticking problems with the previous design's Nylon piston. The Turbo XS has a brass piston. The Forge uses O rings, spring tension and lubricant to hold pressure. The Turbo XS uses a spring and 10 washers making it more adjustable than the Forge that only has two springs of different tensions for adjustability. The Turbo XS is used in many turbo model applications German, Japanese, and American. Forge is not offered for as many. The Forge is omnidirectional for mounting. The Turbo XS is directional. The best advantage of the Turbo XS is the design doesn't use O rings and lubricant in a high thermal application. The advantage of the Forge is it is strongly endorsed by many who use it on this Forum. Pick your poison, but get as much info as possible on the Bailey as well to make an informed decision. Good luck.
Old 07-30-2001, 02:47 PM
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Default pic/function

<center><img src="http://pictureposter.audiworld.com/20566/turboxs_flow_orientation_copy.jpg"></center><p>
Old 07-30-2001, 04:00 PM
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Default Yeah you can run ablow off valve...but think you need to re-calibrate throttle and

also believe theres a boost loss....so unless ya gotta make the noise whats the point???
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