blow off valves?? - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 04-30-2009, 09:08 AM Thread Starter
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blow off valves??

Does anyone know if and where I could get blow off valves for my PSD?
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post #2 of 12 Old 04-30-2009, 09:10 AM
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why do you want a bov? bov's are for ricers

05 Single Cab Short Bed
*03 Turbo*Stroked Injectors*AFE Stage 2*Small mouth Intake*SCT With Eric's Extreme Race*4.30 Gear*Best ET 13.5@99MPH*
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post #3 of 12 Old 04-30-2009, 09:12 AM
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uh-oh... It begins again...

Kyle

2008 F250 Lariat CC/SB 4X4
COBRA 29LX, Firestiks, Ranch Hands, AmsOil EABP90 bypass filter x 2, Flo-Pro 5" stainless w/ DEI wrapped 4" downpipe, S&B CAI, SCT LiveWire

To install still-AutoMeter 60psi boost gauge, AeroForce Interceptor scan gauge, Flo-Pro EGR delete with stainless elbow with custom welded 1/8 NPT bung, racor ccv4500



***BEATER***1976 F100 Ranger
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post #4 of 12 Old 04-30-2009, 09:15 AM
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and to contribute something useful. Yes, there are BOV's for these trucks. The ones you'd want to look at are on the pricey side, but it's worth the money to have a quality piece. ALSO, if you have an auto tranny, its not gonna have the effect you want, unless you want to let off the gas whenever the tranny shifts

Kyle

2008 F250 Lariat CC/SB 4X4
COBRA 29LX, Firestiks, Ranch Hands, AmsOil EABP90 bypass filter x 2, Flo-Pro 5" stainless w/ DEI wrapped 4" downpipe, S&B CAI, SCT LiveWire

To install still-AutoMeter 60psi boost gauge, AeroForce Interceptor scan gauge, Flo-Pro EGR delete with stainless elbow with custom welded 1/8 NPT bung, racor ccv4500



***BEATER***1976 F100 Ranger
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post #5 of 12 Old 04-30-2009, 09:27 AM
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This may be a dumb question but what exactly does a bov do? I thought they were usually only used on higher hp trucks

99.5 F-250 Lariat 4x4 CC
-Isspro's in A-pillar
-5" TB into 6" miter
-Recon smoked cab lights
-Bullydog "mileage" chip *Matts tunes in 2 weeks*
-Warn hubs
-DIY intake, Foil delete
-Hankook MT 285's
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post #6 of 12 Old 04-30-2009, 09:29 AM
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I think that when you reach a certain boost pressure it just blows the valve and releases the extra pressure

Early 99 f250, automatic, 3 inch dp, 4 inch exhaust, autometer gauges, torque coverter lockup switch, boost fooler, zoodad, 2.7 in leveling kit, 3 inch rear blocks, mickey thompson wheels, Dp tuned
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post #7 of 12 Old 04-30-2009, 09:33 AM
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Quote:
Originally Posted by blowinsmoke7.3 View Post
This may be a dumb question but what exactly does a bov do? I thought they were usually only used on higher hp trucks

it releases boost pressure between shifts so you don't damage your turbo. Cause if you let off the gas too shift, your throttle will be closed so the boost will hit the closed throttle and go back at the turbo, the BOV releases the pressure to avoid turbo damage from the boost hitting it and either causing it to stop or spin the other direction which is bad for it, leads to increased wear

Kyle

2008 F250 Lariat CC/SB 4X4
COBRA 29LX, Firestiks, Ranch Hands, AmsOil EABP90 bypass filter x 2, Flo-Pro 5" stainless w/ DEI wrapped 4" downpipe, S&B CAI, SCT LiveWire

To install still-AutoMeter 60psi boost gauge, AeroForce Interceptor scan gauge, Flo-Pro EGR delete with stainless elbow with custom welded 1/8 NPT bung, racor ccv4500



***BEATER***1976 F100 Ranger

Last edited by 6point0damn2004; 04-30-2009 at 09:36 AM.
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post #8 of 12 Old 04-30-2009, 09:36 AM
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Quote:
Originally Posted by 6point0damn2004 View Post
it releases boost pressure between shifts so you don't damage your turbo. Cause if you let off the gas too shift, your throttle will be closed so the boost will hit the closed throttle and go back at the turbo, the BOV releases the pressure to avoid turbo damage.
ah ok makes sense now

99.5 F-250 Lariat 4x4 CC
-Isspro's in A-pillar
-5" TB into 6" miter
-Recon smoked cab lights
-Bullydog "mileage" chip *Matts tunes in 2 weeks*
-Warn hubs
-DIY intake, Foil delete
-Hankook MT 285's
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post #9 of 12 Old 04-30-2009, 09:39 AM
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BLOW OFF VALVE!!!

blow off

blow-off valve

Happy reading

Dale

99.5 F 350 Totaled
2000 F350 Lariate
CC
SB
4x4
4" turbo back
cold air. Zoodad
Banks big head
Wicked wheel
4" BDS lift. With Bilstein's
all brought together by TW
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post #10 of 12 Old 04-30-2009, 09:49 AM
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Quote:
Originally Posted by 6point0damn2004 View Post
it releases boost pressure between shifts so you don't damage your turbo. Cause if you let off the gas too shift, your throttle will be closed so the boost will hit the closed throttle and go back at the turbo, the BOV releases the pressure to avoid turbo damage from the boost hitting it and either causing it to stop or spin the other direction which is bad for it, leads to increased wear
Thanks for clearing that up, wasnt exactly sure because i have never wanted one and im not a ricer

Early 99 f250, automatic, 3 inch dp, 4 inch exhaust, autometer gauges, torque coverter lockup switch, boost fooler, zoodad, 2.7 in leveling kit, 3 inch rear blocks, mickey thompson wheels, Dp tuned
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