Subaru Tech All We'll Drive

Synchronic BOV

Old Sep 10, 2008 | 10:23 AM
  #11 (permalink)  
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Originally Posted by Alizarin
warning...

Not quite. They're not forced to spin backwards, it has to do with pressure waves coming back off the closed throttle plate and striking the compressor blades. Some of that pressurized air also passed back through the compressor and out the inlet of the turbo. This combination is what causes the dreaded "surge" noise. Sure, the compressor wheel slows down, but it won't reverse.

Or, think about it another way. You have the shaft with the turbine and compressor wheels spinning at almost 1667 revolutions per second (assuming 100k rpm which isn't a bad assumption at full bore, some turbos spin over 200k rpm). That's a whole mess of inertia to overcome to make it spin backwards in a fraction of a second. Which means a very large force is needed. I have a feeling if you do the math, you'll likely snap the shaft or totally destroy the blades before that happens. Not only that, but you still have exhaust passing through the turbine wheel, causing "forward" motion.


Also, ryan, you provide no links. The lazy among us won't search for it if you're going to shill it.
ok it tries to spin it back wards which slows it down and destroys shaft style turbos... the synapse bov lets the air out way faster eliminating surge

if you can take the time to type all of that im sure typing synapse bov in google isnt too hard
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Old Sep 10, 2008 | 10:23 AM
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sorry but i can find there website. weird.....
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Old Sep 10, 2008 | 10:25 AM
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Originally Posted by -faded-
i had the Tial and liked it much better than any bolt on BOV. car ran much cleaner and smoother.
yea i was gonna get a tial but ss recommended getting the hks at the time because he said tial leaks under vacuum
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Old Sep 10, 2008 | 10:26 AM
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Originally Posted by ryan_west06
sorry but i can find there website. weird.....
Synapse Engineering

google is youre friend haha hey did you show glenn the link i sent you
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Old Sep 10, 2008 | 10:28 AM
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they also have amazing wastegates
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Old Sep 10, 2008 | 10:36 AM
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ya i showed him! he figured it out!
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Old Sep 11, 2008 | 10:08 AM
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Originally Posted by blacksti
if you can take the time to type all of that im sure typing synapse bov in google isnt too hard
Of course it's not hard to search. However, my point was that if he was going to pimp it to us, and offer a possible group buy, that he could post up a link.

While I'm being pedantic, his original post isn't quite clear what BOV-related problem this particular model solves. He appears to imply it corrects the "running rich during shifts" problem, which it will not.


/surl
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Old Sep 11, 2008 | 10:17 AM
  #18 (permalink)  
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Originally Posted by Alizarin
Of course it's not hard to search. However, my point was that if he was going to pimp it to us, and offer a possible group buy, that he could post up a link.

While I'm being pedantic, his original post isn't quite clear what BOV-related problem this particular model solves. He appears to imply it corrects the "running rich during shifts" problem, which it will not.


/surl
well if you think about it... this bov lets the air out faster so wouldnt that allow less time in between shirts where the engine has lack of air? in the end making it not rich because the air is actually going into the tb instead of being let out of the bov slowly?
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Old Sep 11, 2008 | 10:20 AM
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Originally Posted by Alizarin
Of course it's not hard to search. However, my point was that if he was going to pimp it to us, and offer a possible group buy, that he could post up a link.

While I'm being pedantic, his original post isn't quite clear what BOV-related problem this particular model solves. He appears to imply it corrects the "running rich during shifts" problem, which it will not.


/surl
What i was trying to say is, it should eliminate the running rich because its fast response time.
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Old Sep 11, 2008 | 11:50 AM
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Go fast bits stealth was the best one I hever had. IMHO
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