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Bosch / Bypass Valves |
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01/04 |
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Early production vehicles had a Bosch
bypass valve with the number ending in 108 or Audi 710A which due to
problems would eventually be superceded by a Bosch 114 or Audi 710N.
This valve was far better in performance but still not completely
reliable especially under modified conditions.
MTM did extensive research on various bypass valves for their 400 -500HP kits and came up with the Bosch Sport Valve 110 being the best in performance and durability, even over more expensive aftermarket valves. At JHM we also tested various options and concur with MTM’s findings. With the Bosch Sport Valve the boost recovery and throttle response are enhanced significantly and since it is dimensionally the same as the original the installation is simple. As stated in Audi’s technical bulletin dated Dec. 8, 2000 the bypass valves should be replaced should the following occur: “Groaning or howling noise from engine compartment when accelerating during partial load between 2500-3000 RPM,” or “ Rattling noise when decelerating between 2000-3000 RPM,” which “may be caused by the internal diaphragm of the charge pressure bypass valve producing pulsating noises.” Now we offer the most appropriate and functional valve from Bosch for the Audi products.
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| Joe Hoppen Motorsport, Inc. 6245 Clark Center Avenue Unit M, Sarasota, FL 34238 Phone: (941) 924-6380 Fax: (941) 924-6980 Email: hoppen4mtm@aol.com |
