Just wondering, for these running bov before IC, do you place it right next to intercooler? somewhere in between? is there anything to worry about when it comes to driving in the rain?

 

i have mine on the pipe between the turbo and intercooler. never had a problem with rain or water going in there for over 25k boosted miles.

btw the bov gets louder before the intercooler.

 

Is it bad to have it there?? ive always heard it should be a foot or two infront of the throttle body

 

i don't understand either, i thought it was most effective near the TB as well....

what's the logic behind the pre IC placement? just louder? my Greddy type S is pretty loud as it is!

 

as long as its relieving the pressure it doesn't matter where it is

 

well in theory it would be better to place it near the TB cuz its the source of the high pressure that makes the BOV activate, but in real life I guess it dont really matter.

 

i see no real difference...other than the bov getting dirty

 

sound performance puts there bov before the intercooler on all there 1000+ hp supras so i guess a roughly 250hp civic should be all good lol


i asked them if it was better to have it near the tb and they said it realy doesnt matter although i always heared near the tb

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg racer 877 &raquo;</TD></TR><TR><TD CLASS="quote">well in theory it would be better to place it near the TB cuz its the source of the high pressure that makes the BOV activate, but in real life I guess it dont really matter. </TD></TR></TABLE>

Your theory is actually wrong. The whole point of a BOV is to relieve pressure in the pipes so that you dont get any compressor surge. The most effective place to put your BOV is closer to the turbo (aka before the intercooler) so that when the TB snaps shut, all that air will come out the BOV instead of the BOV and the turbo.

 

beat me to it.

But remember, a properly sized turbo wont experience any surge or harm because of.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigbadboy &raquo;</TD></TR><TR><TD CLASS="quote">as long as its relieving the pressure it doesn't matter where it is</TD></TR></TABLE>

I don't know about that.. when the throttle plate shuts, the pressure wave begins traveling back down the pipe, so it makes sense to stop the wave as close to its origin as possible, that way if you do immediately open the throttle plate back up, there is no chance for the two waves to collide that are traveling in different directions. I think by having the valve as close to the throttle plate as possible it will make throttle response better, and allow the turbo to spool quicker.

 

Another thing to consider is that air vented after the IC has been cooled. By venting it before the IC that's less heat the IC needs to remove. I know it's not much compaired to the amount of air going through the system but on a circuit car I bet you would see a difference.

 

i actually wanna put my BOV closer to the intercooler to be able to blow off under no load.... woild this work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboGoKart &raquo;</TD></TR><TR><TD CLASS="quote">Your theory is actually wrong. The whole point of a BOV is to relieve pressure in the pipes so that you dont get any compressor surge. The most effective place to put your BOV is closer to the turbo (aka before the intercooler) so that when the TB snaps shut, all that air will come out the BOV instead of the BOV and the turbo.</TD></TR></TABLE>

*ding ding ding

we have a winner.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89civic1.8T &raquo;</TD></TR><TR><TD CLASS="quote">Another thing to consider is that air vented after the IC has been cooled. By venting it before the IC that's less heat the IC needs to remove. I know it's not much compaired to the amount of air going through the system but on a circuit car I bet you would see a difference.</TD></TR></TABLE>

that's a good thought. never thought of it that way. but i have thought why get rid of the cold air when you can just get rid of the hot air in the pipes.