rerouting the BOV into intake benifit you for a/f ratio? what about sleepers?
05-21-2004, 09:14 PM
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rerouting the BOV into intake benifit you for a/f ratio? what about sleepers?
just two questions about blow off valves,
#1 ---> in a mag i read that if a m.a.f. equiped car uses a bov to the atmosphere it will cause the car to run rich for a second because all that air was compensated for with fuel and that air deemed "going thru the motor" was blown away. do ppl here ever have issues with that?
#2 ---> for a phat sleeper will rerouting the bov into the intake kill the sound completely? or just sound strange and muffled?
#1 ---> in a mag i read that if a m.a.f. equiped car uses a bov to the atmosphere it will cause the car to run rich for a second because all that air was compensated for with fuel and that air deemed "going thru the motor" was blown away. do ppl here ever have issues with that?
#2 ---> for a phat sleeper will rerouting the bov into the intake kill the sound completely? or just sound strange and muffled?
05-21-2004, 09:32 PM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (z6)
1) honda's run map sensors, so we don't have that problem.
2) it kills majority of the sound, you can still hear a little of it. If you're trying to hide the fact that you have a turbo, it's pretty hard to hide the spooling sound!
2) it kills majority of the sound, you can still hear a little of it. If you're trying to hide the fact that you have a turbo, it's pretty hard to hide the spooling sound!
05-21-2004, 10:01 PM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (sporkcrx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sporkcrx »</TD></TR><TR><TD CLASS="quote">2) it kills majority of the sound, you can still hear a little of it. If you're trying to hide the fact that you have a turbo, it's pretty hard to hide the spooling sound! </TD></TR></TABLE>
yup he's right
</TD></TR></TABLE>yup he's right
05-21-2004, 10:42 PM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (z6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6 »</TD></TR><TR><TD CLASS="quote">just two questions about blow off valves,
#1 ---> in a mag i read that if a m.a.f. equiped car uses a bov to the atmosphere it will cause the car to run rich for a second because all that air was compensated for with fuel and that air deemed "going thru the motor" was blown away. do ppl here ever have issues with that?
#2 ---> for a phat sleeper will rerouting the bov into the intake kill the sound completely? or just sound strange and muffled?</TD></TR></TABLE>
1: Hondas = not MAF cars (thank god) so we're not affected.
2: To say that it will muffle is a crock of ****. Rerouting will make the discharge sound echo within the pipes which definitely wouldn't help sleep apeal. The only thing to make a BOV quieter is a louder engine or more spring pressure. If it were an external WG then it'd muffle, but for a BOV, it definitely does not muffle.
#1 ---> in a mag i read that if a m.a.f. equiped car uses a bov to the atmosphere it will cause the car to run rich for a second because all that air was compensated for with fuel and that air deemed "going thru the motor" was blown away. do ppl here ever have issues with that?
#2 ---> for a phat sleeper will rerouting the bov into the intake kill the sound completely? or just sound strange and muffled?</TD></TR></TABLE>
1: Hondas = not MAF cars (thank god) so we're not affected.
2: To say that it will muffle is a crock of ****. Rerouting will make the discharge sound echo within the pipes which definitely wouldn't help sleep apeal. The only thing to make a BOV quieter is a louder engine or more spring pressure. If it were an external WG then it'd muffle, but for a BOV, it definitely does not muffle.
05-21-2004, 10:52 PM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (1316130057)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1316130057 »</TD></TR><TR><TD CLASS="quote">
2: To say that it will muffle is a crock of ****. Rerouting will make the discharge sound echo within the pipes which definitely wouldn't help sleep apeal. The only thing to make a BOV quieter is a louder engine or more spring pressure. If it were an external WG then it'd muffle, but for a BOV, it definitely does not muffle.</TD></TR></TABLE>
Is that why you can barely hear the diversion valve on my girlfriend's 9-3?
2: To say that it will muffle is a crock of ****. Rerouting will make the discharge sound echo within the pipes which definitely wouldn't help sleep apeal. The only thing to make a BOV quieter is a louder engine or more spring pressure. If it were an external WG then it'd muffle, but for a BOV, it definitely does not muffle.</TD></TR></TABLE>
Is that why you can barely hear the diversion valve on my girlfriend's 9-3?
05-22-2004, 10:20 AM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (Stu)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stu »</TD></TR><TR><TD CLASS="quote">
Is that why you can barely hear the diversion valve on my girlfriend's 9-3?</TD></TR></TABLE>
There's a billion factors that could affect that. For starters, the amount of boost, if it's a stock bosch BOV, and the size of the pipes. To illustrate, think of your exhaust, vs an open header. I'll put $$ on it that anyone with an open exhaust (no cat, no muffler) will have a higher dB reading than an open header. Those pipes do a great job of bouncing sound around and aiming them like a cannon, rather than let them go where ever they want like a grenade.
Is that why you can barely hear the diversion valve on my girlfriend's 9-3?</TD></TR></TABLE>
There's a billion factors that could affect that. For starters, the amount of boost, if it's a stock bosch BOV, and the size of the pipes. To illustrate, think of your exhaust, vs an open header. I'll put $$ on it that anyone with an open exhaust (no cat, no muffler) will have a higher dB reading than an open header. Those pipes do a great job of bouncing sound around and aiming them like a cannon, rather than let them go where ever they want like a grenade.
05-22-2004, 10:22 AM
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Re: rerouting the BOV into intake benifit you for a/f ratio? what about sleepers? (1316130057)
I own a stock 1.8T GTI.. couldn't hear the BOV stock.. put the GFB Hybrid on it .. (1/2 atmo, 1/2 Recirc).. and you can hear it 10X louder when it hits the atmosphere part.
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