BOV help keep spooled?
04-20-07, 12:29 AM
#1
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BOV help keep spooled?
hey guys. I got a greddy FMIC setuo and it did not come with a flange for a BOV. I will be adding one ina bit, but my question is if it will help keep my TUrbo spooled better gear to gear? It seems my turbo always needs to respoolup gear to gear.
04-20-07, 12:34 AM
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The turbo will always have to respool between shifts, its because you've fallen out of boost range, or just lower in it.
I've heard a BOV can help reduce spool times, but that's about it.
(First post. Lurked for a while though)
I've heard a BOV can help reduce spool times, but that's about it.
(First post. Lurked for a while though)
04-20-07, 12:40 AM
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Originally Posted by RETed
Actually, no, the BOV hurts spool.
The BOV's primary responsibility is to prevent turbo damage from compressor surge.
-Ted
The BOV's primary responsibility is to prevent turbo damage from compressor surge.
-Ted
04-20-07, 12:48 AM
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Originally Posted by RETed
Actually, no, the BOV hurts spool.
The BOV's primary responsibility is to prevent turbo damage from compressor surge.
-Ted
The BOV's primary responsibility is to prevent turbo damage from compressor surge.
-Ted
04-20-07, 12:54 AM
#6
Banned. I got OWNED!!!
Yes it'll slow it down to the point where the compressor wheel actually reverses rotation, hence the "compressor surge" Ted mentioned. It also has another benefit, in that while relieving the pressure in the charge pipes, it also reduces manifold pressure, avoiding a potential lean condition between shifts.
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04-20-07, 06:19 AM
#9
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Stock recirculating BOV's are for reducing noise. Open-vented aftermarket BOV's are for attracting attention.
If you really needed a BOV to prevent turbo damage, professional endurance race teams would need to use them, and yet they don't...
If you really needed a BOV to prevent turbo damage, professional endurance race teams would need to use them, and yet they don't...
04-20-07, 02:43 PM
#11
Banned. I got OWNED!!!
I've also been learned 
that the less than 1/4 second shift time most of those cars have coupled with the pop-off valve keeps the surge from ever reaching the compressor.
that the less than 1/4 second shift time most of those cars have coupled with the pop-off valve keeps the surge from ever reaching the compressor.
04-20-07, 03:17 PM
#13
Banned. I got OWNED!!!
Originally Posted by classicauto
Then you'd see them on transport trucks that drive for millions of miles 
04-21-07, 08:16 PM
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Originally Posted by 13b4me
No but they do use popoff valves.
Originally Posted by classicauto
Then you'd see them on transport trucks that drive for millions of miles
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