Drivetrain BOV
#152
10-14-2008 | 12:00 PM
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Joined: Jun 2008
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From: Orlando, my house is in fortlauderdale and im originally from da bronx
You only need one. However today some of the cars come with a factory unit mounted directly on the turbo. They do work, however they dont cycle as fast as an aftermarket one which is why when you racey our car and shift you feel a slight hesitation after the shift. It is not worth the hassle on some to try to remove the factory one so i tell people just to leave it in, it does not hurt. By removing the factory one what you do get is a louder sound from the aftermarket one when it vents.
#153
10-16-2008 | 05:55 AM
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Joined: Oct 2008
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When you race indy cars, BOV's are installed by officials only at race time and locked into place. Winning cars have their BOV removed and tested after the race to make sure there was no tampering. This ensure that no matter what you do the engine, the BOV will keep the boost/power the same across all cars/engines (just a FYI). Drivers listen to the BOV via an air tube going to their helmets, when they here the start of the faint hissing sounds, they back off to prevent the valve from opening thus keep the boost at max .....
Hope that helps.
Your Mini BOV vents positive charge air out of the valve once the throttle body is shut. It keeps the turbo spinning with less resistance during this period and helps you to get back on boost quciker. That is all it does.
The BOV's in Indycar racing have more incommon with an exhaust wastegate. Basically they are fitted to the inlet plenum and bleed off positive air pressure once it goes above an agreed threshold. it stops teams running higher than allowed boost levels. This happens whilst you're on the throttle not during changes.
#154
10-16-2008 | 12:15 PM
Banned
Joined: Jun 2008
Posts: 470
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From: Orlando, my house is in fortlauderdale and im originally from da bronx
You're a little confused here. BOV's on our Mini and a the BOV you reference from Indy cars do a very different job.
The BOV's in Indycar racing have more incommon with an exhaust wastegate. Basically they are fitted to the inlet plenum and bleed off positive air pressure once it goes above an agreed threshold. it stops teams running higher than allowed boost levels. This happens whilst you're on the throttle not during changes.
The BOV's in Indycar racing have more incommon with an exhaust wastegate. Basically they are fitted to the inlet plenum and bleed off positive air pressure once it goes above an agreed threshold. it stops teams running higher than allowed boost levels. This happens whilst you're on the throttle not during changes.
"HKS Racing Bypass Valves function similar to the Standard Bypass Valves, but incorporate an additional pressurized port to aid under severe boost conditions. The Racing Bypass Valve can also be used as a safety "pop-off" valve if the second port is connected to a pressure source that does not see vacuum.
"
Dont follow indy much so I did not know they had these on there.
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