BOV yes or no
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From: Bossier City, LA
BOV yes or no
I'm nearing the end of installing my Greddy TT and had a couple of questions. Do I need to run a bov with the kit? If not, what are some of the drawbacks to not having one? If so, any suggestions on which one. Any help is appreciated.
Thanks,
Buddy
Thanks,
Buddy
Straight from Wikipedia...
Blowoff valves are used to prevent compressor surge. Compressor surge is a phenomenon that occurs when lifting off the throttle of a turbocharged car (with a non-existent or faulty bypass valve). When the throttle plate on a turbocharged engine running boost closes, high pressure in the intake system has nowhere to go. It is forced to travel back to the turbocharger in the form of a pressure wave. This results in the wheel rapidly decreasing speed and stalling. The driver will notice a fluttering air sound. In extreme cases the compressor wheel will stop completely or even go backwards. Compressor surge is very hard on the bearings in the turbocharger and can significantly decrease its lifespan. In addition, the now slower moving compressor wheel takes longer to spool (speed up) when throttle is applied. This is known as turbo lag.
With the implementation of either a bypass valve or a blowoff valve the pressurized air escapes, allowing the turbo to continue spinning. This allows the turbocharger to have less turbo lag when power is demanded next.
In short, it would be most benificial to buy one.
Blowoff valves are used to prevent compressor surge. Compressor surge is a phenomenon that occurs when lifting off the throttle of a turbocharged car (with a non-existent or faulty bypass valve). When the throttle plate on a turbocharged engine running boost closes, high pressure in the intake system has nowhere to go. It is forced to travel back to the turbocharger in the form of a pressure wave. This results in the wheel rapidly decreasing speed and stalling. The driver will notice a fluttering air sound. In extreme cases the compressor wheel will stop completely or even go backwards. Compressor surge is very hard on the bearings in the turbocharger and can significantly decrease its lifespan. In addition, the now slower moving compressor wheel takes longer to spool (speed up) when throttle is applied. This is known as turbo lag.
With the implementation of either a bypass valve or a blowoff valve the pressurized air escapes, allowing the turbo to continue spinning. This allows the turbocharger to have less turbo lag when power is demanded next.
In short, it would be most benificial to buy one.
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Originally Posted by LAz33
I'm nearing the end of installing my Greddy TT and had a couple of questions. Do I need to run a bov with the kit? If not, what are some of the drawbacks to not having one? If so, any suggestions on which one. Any help is appreciated.
Thanks,
Buddy
Thanks,
Buddy
FYI, GReddy doesn't recommend one, and they don't really run them in Japan. I know a few of the guys at GReddy and none of their personal cars have them and the G35 is over 500whp.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
Originally Posted by Beer Goggles
FYI, GReddy doesn't recommend one, and they don't really run them in Japan. I know a few of the guys at GReddy and none of their personal cars have them and the G35 is over 500whp.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
I take it, you've never driven a turbo car.
A. whether a turbo has ball bearings or not has nothing to do with BOVs B. Most People put them on simply for better performance.
Last edited by twenzel; Mar 20, 2007 at 07:21 PM.
Originally Posted by tonywenzel
I take it, you've never driven a turbo car.
A. whether a turbo has ball bearings or not has nothing to do with BOVs B. Most People put them on simply for better performance.
A. whether a turbo has ball bearings or not has nothing to do with BOVs B. Most People put them on simply for better performance.
Ummm yeah. I guess the twin turbo on my car installed by GReddy means nothing.
Everybody is an internet expert. BPVs are for performance, BOV are to sound cool.
Originally Posted by Beer Goggles
FYI, GReddy doesn't recommend one, and they don't really run them in Japan. I know a few of the guys at GReddy and none of their personal cars have them and the G35 is over 500whp.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
A. the turbos don't have bearings B. Most People put them on simply for sound.
Like I said I have a good friend at GReddy and I keep asking him if I need one...his answer in NO.
Take that for what it's worth.
LOL Bypass/recirculating valves are for performance and serve a function but BOV's dont? You are smoking crack, I dont care what your friend in Japan says. Ive seen countless Japanese tuner car vids and heard BOV's in all of them...
