s200bym Posted November 17, 2018 Share Posted November 17, 2018 (edited) Hi all, If all goes well I will be in a 370z Nismo after Christmas. Could someone get a reading of the vacuum pressure at idle for me, please? I want to make an exhaust bypass valve that has an electronically controlled solenoid which in turn controls a vacuum valve Just like the Chinese exhaust cutouts. The valves work at -2psi to -6psi. I want to make sure the vacuum pressure at idle is high enough to open the valve. The electronic control unit will allow me to shut off the vacuum and keep the valve shut for those early morning starts or allow me to start the car with the valve open at a non-antisocial time lol. Thanks, Mike. Edited November 17, 2018 by s200bym Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted November 17, 2018 Share Posted November 17, 2018 20 -22 hg. on standard cams and standard pistons. Quote Link to comment Share on other sites More sharing options...
s200bym Posted November 17, 2018 Author Share Posted November 17, 2018 Brilliant, Thanks for that. Quote Link to comment Share on other sites More sharing options...
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