Greddy Type S BOV
12-20-2003, 10:27 AM
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Re: Greddy Type S BOV (BG Boost)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BG Boost »</TD></TR><TR><TD CLASS="quote">For a filter?
I saw a BOV that had a pipe screwed into the outlet and then routed back into the intake </TD></TR></TABLE>
Yea, Im pretty sure thats why.
I saw a BOV that had a pipe screwed into the outlet and then routed back into the intake </TD></TR></TABLE>
Yea, Im pretty sure thats why.
12-22-2003, 10:54 PM
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Re: Greddy Type S BOV (BG Boost)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BG Boost »</TD></TR><TR><TD CLASS="quote">For a filter?
I saw a BOV that had a pipe screwed into the outlet and then routed back into the intake </TD></TR></TABLE>
I've seen this on DSM's
I also found this just incase we start a debate
If recirculating keeps the turbo spooled better, why do rally cars vent to atmosphere?
People have the impression that a recirculating valve keeps the turbo spooled better, but they forget to factor pumping losses into the equation hehe.
Truth is, BOV works better than recirculating valve, but manufacturers want quiet over that fraction of a second better turbo response time.
Stock EVO 8 bypass valve
Upgraded by Pass Value, see how its going back to the intake piping
I saw a BOV that had a pipe screwed into the outlet and then routed back into the intake </TD></TR></TABLE>
I've seen this on DSM's
I also found this just incase we start a debate
If recirculating keeps the turbo spooled better, why do rally cars vent to atmosphere?
People have the impression that a recirculating valve keeps the turbo spooled better, but they forget to factor pumping losses into the equation hehe.
Truth is, BOV works better than recirculating valve, but manufacturers want quiet over that fraction of a second better turbo response time.
Stock EVO 8 bypass valve
Upgraded by Pass Value, see how its going back to the intake piping
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12-22-2003, 11:19 PM
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Re: Greddy Type S BOV (FredoSP)
First off, rally cars use anti-lag, which in super simplified terms basically retards timing excessively, adds fuel (sometimes) and moves the combustion out of the motor and into the manifold. Rally cars do not have either a BOV or DV, they just let the turbo surge. With the advent of Sequential trannys, its not an issue.
Now, about that greddy-s, it has the threads in it so you are able to run it in recirculation mode. This is how I have mine installed on my 1.8t GTI. Note this is not my picture, but is how it is installed:
Now, about that greddy-s, it has the threads in it so you are able to run it in recirculation mode. This is how I have mine installed on my 1.8t GTI. Note this is not my picture, but is how it is installed:
12-22-2003, 11:27 PM
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Re: Greddy Type S BOV (Butcher)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Butcher »</TD></TR><TR><TD CLASS="quote"> Rally cars do not have either a BOV or DV, they just let the turbo surge. </TD></TR></TABLE>
I very much DISAGREE
I very much DISAGREE
12-22-2003, 11:30 PM
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Re: Greddy Type S BOV (FredoSP)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FredoSP »</TD></TR><TR><TD CLASS="quote">
I very much DISAGREE</TD></TR></TABLE>
proof?
edit, we are talking full fledged rally cars, FIA right?
I very much DISAGREE</TD></TR></TABLE>
proof?
edit, we are talking full fledged rally cars, FIA right?
12-22-2003, 11:33 PM
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12-22-2003, 11:42 PM
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Re: Greddy Type S BOV (Butcher)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Butcher »</TD></TR><TR><TD CLASS="quote">http://www.rallycars.com/Cars/bangbang.html</TD></TR></TABLE>
i have watched videos and on Speed vision have SEEN BOV's. I have also seen SCAA Rally cars, all have had BOV's. I dont know what to tell ya - anyways back to the topic.
i have watched videos and on Speed vision have SEEN BOV's. I have also seen SCAA Rally cars, all have had BOV's. I dont know what to tell ya - anyways back to the topic.
12-22-2003, 11:49 PM
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Re: Greddy Type S BOV (FredoSP)
I guess we are just comparing a few different levels of rally here 
SCCA cars do also produce more power than WRC cars, but there is a lot more technology in WRC then there is in SCCA. Antilag could not function if it had a BOV, it produces up to 1.5bar with the throttle closed!
SCCA cars do also produce more power than WRC cars, but there is a lot more technology in WRC then there is in SCCA. Antilag could not function if it had a BOV, it produces up to 1.5bar with the throttle closed!
12-22-2003, 11:57 PM
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Re: Greddy Type S BOV (jerseykid609)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">i second that there's for sure a BOV on wrc cars</TD></TR></TABLE>
NO.
THERES NOT.
NO.
THERES NOT.
12-23-2003, 03:15 AM
#16
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Re: Greddy Type S BOV (Butcher)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Butcher »</TD></TR><TR><TD CLASS="quote">
NO.
THERES NOT.</TD></TR></TABLE>
I sold my old HKS BOV to a SCCA PRO rally evo.
He has the evo on http://www.coloradorally.org/
liam
NO.
THERES NOT.</TD></TR></TABLE>
I sold my old HKS BOV to a SCCA PRO rally evo.
He has the evo on http://www.coloradorally.org/
liam
12-23-2003, 04:55 AM
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Re: Greddy Type S BOV (FredoSP)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FredoSP »</TD></TR><TR><TD CLASS="quote">
I've seen this on DSM's
I also found this just incase we start a debate
If recirculating keeps the turbo spooled better, why do rally cars vent to atmosphere?
People have the impression that a recirculating valve keeps the turbo spooled better, but they forget to factor pumping losses into the equation hehe.
Truth is, BOV works better than recirculating valve, but manufacturers want quiet over that fraction of a second better turbo response time.
Stock EVO 8 bypass valve
</TD></TR></TABLE>
The main reason manufacturers recirculate is because alot of these turbo cars run a MAF system. Venting can give you problems here because this air is measured and is fuel-compensated but is expelled at the bov so you get overly rich and possibly stall.
I've seen this on DSM's
I also found this just incase we start a debate
If recirculating keeps the turbo spooled better, why do rally cars vent to atmosphere?
People have the impression that a recirculating valve keeps the turbo spooled better, but they forget to factor pumping losses into the equation hehe.
Truth is, BOV works better than recirculating valve, but manufacturers want quiet over that fraction of a second better turbo response time.
Stock EVO 8 bypass valve
</TD></TR></TABLE>
The main reason manufacturers recirculate is because alot of these turbo cars run a MAF system. Venting can give you problems here because this air is measured and is fuel-compensated but is expelled at the bov so you get overly rich and possibly stall.
12-23-2003, 07:43 AM
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Re: Greddy Type S BOV (Pat)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pat »</TD></TR><TR><TD CLASS="quote">
The main reason manufacturers recirculate is because alot of these turbo cars run a MAF system. Venting can give you problems here because this air is measured and is fuel-compensated but is expelled at the bov so you get overly rich and possibly stall. </TD></TR></TABLE>
Another is they have to due to federal quidelines set by the EPA. Externally vented BOVs cannot come standard on new cars.
The main reason manufacturers recirculate is because alot of these turbo cars run a MAF system. Venting can give you problems here because this air is measured and is fuel-compensated but is expelled at the bov so you get overly rich and possibly stall. </TD></TR></TABLE>
Another is they have to due to federal quidelines set by the EPA. Externally vented BOVs cannot come standard on new cars.
12-23-2003, 07:58 AM
#21
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Re: Greddy Type S BOV (2K_TEG)
I have seen SEVERAL FIA WRC cars that have had BOV's. They Team Subaru 555 WRX that was on display here in Okinawa had a BOV but did not use ALS. I have seen a couple EVO's that didn't have it and a Puegot.
12-23-2003, 08:32 AM
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Re: (igo4bmx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igo4bmx »</TD></TR><TR><TD CLASS="quote">i always thought the recirculation of air was for emissions purposes....</TD></TR></TABLE>
it is
it is
12-23-2003, 12:01 PM
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Re: Greddy Type S BOV (TRUST8383)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TRUST8383 »</TD></TR><TR><TD CLASS="quote">or you could just use the threads to add more bling, hehehe..
</TD></TR></TABLE>
wholly **** i have the same horn on my type r greddy bov i love it makes it look cool and sounds awsome
</TD></TR></TABLE>wholly **** i have the same horn on my type r greddy bov i love it makes it look cool and sounds awsome
12-23-2003, 12:14 PM
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Re: Greddy Type S BOV (h22civic2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22civic2 »</TD></TR><TR><TD CLASS="quote">
wholly **** i have the same horn on my type r greddy bov i love it makes it look cool and sounds awsome </TD></TR></TABLE>
Does the horn just make it blow off louder or something?? I can understand having one on the compressor side of the turbo but not the BOV
wholly **** i have the same horn on my type r greddy bov i love it makes it look cool and sounds awsome </TD></TR></TABLE>
Does the horn just make it blow off louder or something?? I can understand having one on the compressor side of the turbo but not the BOV