Turbosmart Blow Off Valve
01-01-05, 07:46 PM
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Slow RX-7
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Turbosmart Blow Off Valve
I have been searching some threads about them, couldn't find many, but in a couple it said they were the loudest ones. Is this true, because I just bought this one.
http://www.turbosmart.com.au/ , the BOV Type I.
I didn't really want a loud one, but I got this one now so, whatever. Anyone have one and what do you think?
http://www.turbosmart.com.au/ , the BOV Type I.
I didn't really want a loud one, but I got this one now so, whatever. Anyone have one and what do you think?
01-03-05, 10:32 AM
#4
RX-7 Bad Ass
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They are quite loud - I've installed a few on FC's. My only worry with the Type 1 is if it can flow enough air to not surge.
Still, the amount of sound that you're comfortable with is hard to say. Most aftermarket BOV's are relatively loud by nature.
The HKS Super Sequential is a damn nice BOV that's pretty quiet. Had one on my old FC. The stock FD blowoff valve works SO well though that it's hard to get an aftermarket
. But, it is actually pretty damn loud!
Dale
Still, the amount of sound that you're comfortable with is hard to say. Most aftermarket BOV's are relatively loud by nature.
The HKS Super Sequential is a damn nice BOV that's pretty quiet. Had one on my old FC. The stock FD blowoff valve works SO well though that it's hard to get an aftermarket
. But, it is actually pretty damn loud!Dale
01-03-05, 12:59 PM
#6
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The purpose of a blowoff valve is to release pressure so you don't get compressor surge. If you had no blowoff valve, you'd get surge - the throttle plates close when you let off the gas, the compressed air from the turbo hits the throttle plates, and it creates pressure waves that hit the compressor wheel of the turbo and slow it down drastically. The effect is very harsh on the turbo, and can damage a turbo over time, not to mention it slows the turbo WAY down VERY quickly so you get a lot more lag in the next gear.
The blowoff valve gives a route for the extra pressure to go so it's vented out of the system. If a blowoff valve is too small and can't dump a lot of air, you get surging. If you shift and you see the boost gauge flutter and hear a weird fluttering sound, that's surge.
Considering that BOV is the smallest they have, that's what led to my concern. I dunno, it may be plenty - you'd have to try it to know for sure. I'm really just guessing if it could be too small to tell you the truth - might be just fine.
Dale
The blowoff valve gives a route for the extra pressure to go so it's vented out of the system. If a blowoff valve is too small and can't dump a lot of air, you get surging. If you shift and you see the boost gauge flutter and hear a weird fluttering sound, that's surge.
Considering that BOV is the smallest they have, that's what led to my concern. I dunno, it may be plenty - you'd have to try it to know for sure. I'm really just guessing if it could be too small to tell you the truth - might be just fine.
Dale
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01-04-05, 11:06 PM
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A while ago I put a type1 bov similar to that in my FD, I think it was Turbosmart. I took off my stock bov and managed to fit and squeeze the type1 into the stock hose without any clamps! Had a little fluttering sound but was damn quiet so I put my stock bov back on which is vented and damn the stocker sounds way louder and better! If you were to get a turbosmart bov, get the type II vee-port, sounds good on my friends supra and 32gts-t, dunno about rotors...
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