Silvia Club of NSW

im plumbing my type s back. i used some holden radiator hose for $5

works a treat, but its kinda between the radiator and the throttle body but underneath. if i get a type r i think ill be getting a big ass bracket and some custom piping made to suit. this is a while off tho........

pity its so much bigger, but thats what you get for being better hehe

thanks Justin!

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M35 Stagea.info @ http://www.m35stagea.info/

Mine's mounted right down in the front of the engine bay on the passenger side.It's pretty tight.I'll try and get a pic of it.

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The Golf is like an 16-year-old girl with big boobs. You know it's wrong but you can't keep away from her.

if you have a good look you can pick up a type R for the same price of a type S, because they are discontinued

although i wouldnt bother swapping from type S to type R, the type S already flows quite well

mm old post but meh

if you really think about the way the air moves as a mass, it doesnt travel back through the piping - rather a pressure wave is sent back towards the turbo from the throttle plate - this pressure wave will travel at the speed of sound under normal atmospheric pressure, and slower under more pressure

so in effect the air that is where the bov is will be vented, not the air at the throttle plate - so the difference from having it at the TB to having it before the cooler will be the difference in time it takes the pressure wave to hit the bov at the TB over the bov at the hot pipe of the cooler, and when were talking a mere say 2 metres of piping and a pressure wave travelling at close to the speed of sound, it will be in the 1/100th's of a second if that

and nissan have it on the hot pipe of the cooler, probably because piping would be a bitch for the plumback - which is the same reason i would do it pre cooler

my bov is located before the TB, and is plumbed back into the intake via the stock plumbing. i have been asked lots of questions regarding this i dont know what all the fuss is about. Looks very neat.

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for s14/15 nissan have it next to the tb
whereas for s13 yes its on the hotpipe pre-cooler

i have an a/m bov on the hotpipe and u do notice the difference in time it takes to release compared to a bov near the tb.. sounds like the bov is lagging
ive noticed it on other cars too.. r33s, other s13s etc

your bov is faulty

ive been in 2 s13's mine and someone elses, mines on hot pipe - his on cold pipe - no difference what so ever

as soon as you back off it pops up

are comparing different bovs ? different springs, different preset tension will give differing results with it popping open

People have called me lots of things in my life.

This might be the first time "wise" has been used.

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Tips for being fooli sik:

Go chrome or go home
Sneezin's Pleasin'
Da flutta is bred and butta
NOS is boss
Try to be different, just like everyone else
No boost? Ya just loost

oh come now - surely someone has called you a wise arse before!

Nissan has them on the hot side of the cooler.

Now I have been thinking about this for a while.
Say you vent the hotter air from the turbo side of the cooler you are venting heated air back into the turbo only to be heated again.

However if you vent the cooled air back into the turbo you are heating it back up again. To what degree the air is being cooled and heated I am not sure but in theory if you vent the the hot air back in it will come out twice as hot the 2nd time. If you vent the cooled air back in it may come back out at the same temp as the first time??

Does any of this make sense?

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To live your dreams you must first face your fears...........

on S14/S15 arent they after the IC? that would be the 'cold' side of the IC.

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M35 Stagea.info @ http://www.m35stagea.info/

Yeh the Black tops have them on the cold side and the red tops on the Hot side.

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To live your dreams you must first face your fears...........

mmm interesting point risking, i dont think the volume of the air that gets vented, relative to the volume the turbo is pumping out would be much at all, and hence really affect temps

if anyone has a temp probe on the cold pipe of there IC and a bov on the hot pipe, they would be able to confirm what happens by seeing the what the temp does on gearshift

another thing to remember though is that the only time that its venting is on gearshift, when the turbo is running much slower rpm and making no boost, and thus the compression/heat factor doesnt apply so much, once it stops venting your sucking only cold air again

imo, the piping work needed to get the plumback pipe into the intake by having a bov on the cold pipe is just a waste of time and space - and those who dont vent back, well its just more rice then function. to have it on the cold pipe for 'performance' or 'lag' benefit but also have it venting externally... bit of a contradiction

has anyone actually seen any testing done by anyone that actually shows the benefits of having the bov either side ?!

before i put my front mount on i had my SSQ BOV fitted where the standard one is on the s14,

now, i've got it fabricated on the turbo side of the intercooler piping. Where the stock cooler was.. (you can see it through the front bar)It has changed the pitch of the BOV and it is really loud..

Is there a justifiable difference in the performance of the BOV, depending on which side of the coller it sits?

i wouldnt think so, i dont see any reason why it should

it may pop open .02 second later on the turbo side, but either way it does its job of stopping compressor surge