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firemanjim
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« on: December 30, 2006, 08:26:04 PM » |
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Jon,John,Joe,etc are you guys running BOV's on your turbo systems? And if so recommendations?
Building new set-up this year and want all pieces on hand before I start.
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Bonneville 2001,2002,2003,2004,and NO stinking 2005,DLRA 2006, next?
Well,sure can't complain about 2008--6 records over 200 and 5 hats from Bonneville,Bubs, and El Mirage for the team!
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Dakin Engineering
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« Reply #1 on: December 31, 2006, 05:22:20 PM » |
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Jim,
Are you running draw-thru or blow-thru?
Sam
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Turbo Sportsters
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hawkwind
Sr. Member
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Age: 56
Location: downunder
Posts: 385
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« Reply #2 on: December 31, 2006, 06:10:44 PM » |
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Jim Im using a bov simply as a safety precaution and I like the whooosh sound  bov's and drawthrough ,place a smalll pilot light at the exit to the bov and it can also serve as a portable BBQ  Gary |
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slower than most
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firemanjim
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« Reply #3 on: January 01, 2007, 01:47:55 AM » |
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Blow through.
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Bonneville 2001,2002,2003,2004,and NO stinking 2005,DLRA 2006, next?
Well,sure can't complain about 2008--6 records over 200 and 5 hats from Bonneville,Bubs, and El Mirage for the team!
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landracing
Guest
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« Reply #4 on: January 01, 2007, 01:58:41 AM » |
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No on the blow off valve here.
jon
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Dakin Engineering
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« Reply #5 on: January 04, 2007, 07:15:49 PM » |
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Jim,
First, let me direct you to my reference "Motorcycle Turbocharging, Supercharging & Nitrous Oxide" by Joe Haile (Whitehorse Press).
He states BOV's are needed (on blow thru systems) when the throttle is snapped shut. Keeps the carb from finding various places to leak when the pressure spikes.
I run draw thru and no BOV.
Sam
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Turbo Sportsters
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firemanjim
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« Reply #6 on: January 04, 2007, 07:40:21 PM » |
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Well, I sure don't see me snapping the throttle shut at any time at Bonneville so will have to do further investigation. Thanks all.
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Bonneville 2001,2002,2003,2004,and NO stinking 2005,DLRA 2006, next?
Well,sure can't complain about 2008--6 records over 200 and 5 hats from Bonneville,Bubs, and El Mirage for the team!
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Sumner
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Age: 69
Location: Blanding, Utah
Posts: 2840
Blanding, Ut..a small dot in the middle of nowhere
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« Reply #7 on: January 04, 2007, 11:44:48 PM » |
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Well, I sure don't see me snapping the throttle shut at any time at Bonneville so will have to do further investigation. Thanks all.
The BOV is there mainly to protect the turbo when the throttle is snapped shut. It wouldn't hurt you, but I agree with the others that it isn't needed at b'ville. c ya, Sum |
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1212FBGS
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« Reply #8 on: January 22, 2007, 02:51:03 AM » |
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bov's are used in drag and roadracing to help controll boost as the waist gate doesnt and cant react fast enough. I dont run bov's on the twin engined liner. but we do run one on randy's 500. couldnt get the waist gate opened faster than we could blow a hole in a piston. it solved the problem. if you want to controll boost do it on the cold side with a bov. a bov is the most accurate way to controll boost
my sugestion...no bov
kent
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