Quote:
Originally Posted by Pho thit cho
I'm looking to get a kit also, I saw in your vid that instead of a blow off valve you have a bypass valve. Was that an option that you chose? I've been talking to a couple different dealers and they said I had the option of upgrading to a better blow off valve. Just curious if you had a choice and why you went with bypass valve instead of blow off. Thanks for posting up all this Info I've been waiting for the longest time for someone to post a review!
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A lot of 'blow offs' have a recirculating option, usually just a hose plumbed back in somewhere in the intake path.
I'm guessing all we have here is a slight difference in the very loose terminology for a blow off valve when it comes to car talk.
Some diverter/blow off changes can have operational benefits, but its most likely that 'upgrade' means louder or sounds cooler. Blowing off to the atmosphere is much louder than recirculating the pressure - note that after market intakes can make the recirculation louder as well.
PROCHARGER WITH TIAL BOV/ INSTALL! SOUNDS INSANE!! - YouTube
A waste gate is used to bleed of excess boost in a turbo setup, blow offs and diverters purge the pressure when the throttle body is closed which can cause problems with the turbine (you've probably heard turbo flutter before, google it)
Procharger actually has some definitions on their website:
ProCharger Bypass Valves | ProCharger
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BYPASS VALVES ARE NOT WASTE GATE RELIEF VALVES
Contrary to most perceptions a bypass valve is designed to relieve boost/pressure when the throttle blade is closed. Conditions such as idle, during shifts, and backing off throttle during tire slip conditions are very important to have a bypass valve. A bypass valve utilizes a vacuum line port behind the throttle blade and vents when detecting an immediate change in pressure. Bypass valves are different from a wastegate relief valve, which operates as a pressure relief valve and opens or vents excess pressure when a certain pressure is achieved.
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Wastegates can also make a noise, some external waste gates on like big single turbo GNs or Supras can be frightening.
It is to my understanding that a waste gate is not needed on a procharger as it's speed is driven by the engine speed