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Old 10-02-2001, 02:34 PM   #1
STiShawn
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Question BOV Placement?

Where is the most effective BOV placement on the turbo ducting?
Is mounting it to the IC best?
Or is mounting it to the charge pipe before the IC the best?
I have the option to do either, which is better..


6psi, Ludespeed stage 2
Supersequential BOV
N1 IC from Larry Ganz
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Old 10-03-2001, 01:55 AM   #2
Jewbaru
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Shawn, was your BOV the Apex or HKS I forgot.

I can't really answer this, since we've talked about it, so I'm just gonna give you a bump and one quick advantage of the IC mount.

IC: closer to the TB so it would vent faster before it had a chance to surge.

Also, take a look at some different turbocharged cars out there, see where the BOV is mounted in relation to the IC, before or after. That should help out.
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Old 10-03-2001, 03:48 AM   #3
HndaTch627
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as close to the TB as possible

Jeremy
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Old 10-03-2001, 10:28 AM   #4
RacerinLSL
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Joel and Jeremy are right. On most cars, attached to the intercooler wouldn't be optimal, but since the intercooler is directly attached to the TB, it's definately the best choice.

Chad
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Old 10-03-2001, 11:28 AM   #5
STiShawn
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Its going to have to on the charge pipe, but I will have it as close to the IC as possible..thanks guys
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Old 10-03-2001, 11:34 AM   #6
subachad
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Mine is on the tubing before my freshly installed intercooler.

How is it advantages to have it close to the throttle body? As soon as you let off the gas and close the butterflies, the entire line between the TB and turbo is pressurized. As soon as the BOV detects vacuum it opens up allowing it to expel the air. The entire point of the BOV is to release the pressure so the air doesn't force itself back through the turbo causing a lot of pressure on the compressor wheel and an almost immediate stop of the wheel which contributes to gear shifting lag and a lower life expectancy of the turbo seals.

So all that said, how is it advantages to have it close to the throttle body?

hondatch: You say close to the TB, but why? What's your reasoning?

I understand if you have a weld on BOV, then it's a good idea to have it on the IC just as a place to weld it, but otherwise it shouldn't matter.

My$.02
Chad
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Old 10-03-2001, 12:36 PM   #7
HndaTch627
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subachad-
THis is to prevent excess pressure from hitting the throttle plate and keep the air pulsation against it down. the closer your BOV is to teh throttle body the better off you are. It's alost easier to force the air out at the end of the tube rather then in the middle w/ a T in it. Just think of it in velocity, the air is already moving that direction, it is almost at it's run thru the intake(before the throttle plate) and coming out of hte biggest storage chamber in the system. Best spot to vent, the end of the storage tank. It just keeps for a smoother air pattern into the throttle plate.

Dunno if that made sense

jeremy
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Old 10-03-2001, 01:02 PM   #8
subachad
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Thanks Jeremy, that makes perfect sense.

Chad
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Old 10-03-2001, 02:40 PM   #9
STiShawn
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Thanks Jeremy
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Old 10-04-2001, 02:29 AM   #10
HndaTch627
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no problem guys, my pleasure

with any luck i'll have my kit installed and being produced by next spring

Jeremy
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