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Old 07-19-2002, 01:13 AM   #1
alfriedesq
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Default Did anyone running a BOV on stock wrx consider the spool up hit of the stock bov?

It seems that Suabru put the BOV vent tube right before the turbo impeller for a reason - - when you release the gas - a blast of air heads right before the wheel - and thats got to help that wheel get spinning again when you shift fast and then hit the gas trying to build that boost back up

interesting idea - tap a vac gauge in the intake tube near the turbo inlet and see what that air comming through the bov tube does to the pressure in that tube

IF you think I am smkoing crack on this point - then look at Cris Rado's new Celica drag car and see where he vents his BOV to - - he sure ain't looking to impress anyone with loud sounds
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Old 07-19-2002, 12:36 PM   #2
Z1 Performance
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not sure how much it helps on a WRX given its ultra small turbo, but it certainly doesn't hurt!

Now on Chri's car, his turbo is the size of my head roughly, so it's a different ballgame when he shifts!

adam
www.z1auto.com
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Old 07-19-2002, 01:21 PM   #3
alfriedesq
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Quote:
Originally posted by Z1 Performance
not sure how much it helps on a WRX given its ultra small turbo, but it certainly doesn't hurt!

Now on Chri's car, his turbo is the size of my head roughly, so it's a different ballgame when he shifts!

adam
www.z1auto.com
Your prob rightg - - but i can feel that air comming off my HKS blow up valve - it should help at least to reduce the vacume in the intake hose when it releases air into it - and that must help the wheel to spind a bit quicker - (every little bit helps)??
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Old 07-19-2002, 03:07 PM   #4
dRu18
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Quote:
Originally posted by alfriedesq
Your prob rightg - - but i can feel that air comming off my HKS blow up valve - it should help at least to reduce the vacume in the intake hose when it releases air into it - and that must help the wheel to spind a bit quicker - (every little bit helps)??
i hope there isn't such a thing



-Andrew
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Old 07-20-2002, 05:29 PM   #5
WizardBlackWRX
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Al, the DSM guys actually modify their intake tract to dump the BOV closer to the turbo inlet, and at less of a right angle for optimum effect. There are other reasons they do it, but that is one.

http://users.erinet.com/40666/images...IP-1gB_blk.jpg

Last edited by WizardBlackWRX; 07-20-2002 at 05:38 PM.
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Old 07-20-2002, 05:38 PM   #6
ChrisW
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The 2nd gen DSM did something similar. The BOV dumped in the intake right before turbo. Unfortunetly, they put this dump tube inside the intake snorkel which inhibited air flow to the turbo.
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Old 07-22-2002, 01:26 PM   #7
Austin
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