88crxhfb16

HKS SSQV

blow off valve is not working at all. im worried about damaging my turbo. car is running an open down pipe and thats it no exhaust right now. is this why??? no backpressure?? I took rpms up to about 7k and let off. nothing. any ideas.

mamaboy

has nothing to do with your backpressure or exhaust, but has everything to do with manifold pressure. do you have the vac line hooked up? check if there is any tears in the line? that's where i'd start

red_crx

iTrader: (2)

you might have a leak in your vac line

Thurman Merman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crxhfb16 &raquo;</TD></TR><TR><TD CLASS="quote"> I took rpms up to about 7k and let off. nothing. any ideas.
</TD></TR></TABLE>

did you actually drive the car and put load on the motor or just sat and revved to 7k?

specv5150

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Thurman_Merman &raquo;</TD></TR><TR><TD CLASS="quote">

did you actually drive the car and put load on the motor or just sat and revved to 7k?</TD></TR></TABLE>

Just what I was going to ask. When I had a greddy kti with greddy typoe S BOV, I tired that and no sound. HOWEVER, on my RB20 swapped 240sx, you could hear it in neutral. Take a drive and test it then.

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Thurman_Merman &raquo;</TD></TR><TR><TD CLASS="quote">

did you actually drive the car and put load on the motor or just sat and revved to 7k?</TD></TR></TABLE>both does nothing, driving i only took it to about 5k. but still its a hks ssqv so the smaller relief valve should have opened at least.

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by red_crx &raquo;</TD></TR><TR><TD CLASS="quote">you might have a leak in your vac line</TD></TR></TABLE>

im pretty sure there is no leak in the hoses. i will pull it off and double check the brass T and hoses. is it ok to hook it where it is on the manifold?????(its that T sitting right on the last coupler on the throttle body) or should I use a different source????? I ordered a Golden Eagle vacuum rail, so i will be moving everything to the firewall eventually.

bubs

Where is the vac. line hooked into? It should be on your intake manifold after the throttle body. Could it be the fact that your exhaust is too loud to be able to hear the BOV?

EgLsTurbo

your vac line dont look right

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bubs &raquo;</TD></TR><TR><TD CLASS="quote">Where is the vac. line hooked into? It should be on your intake manifold after the throttle body. Could it be the fact that your exhaust is too loud to be able to hear the BOV?</TD></TR></TABLE>OK maybe thats it, this is the first turbo setup i have done. its hooked up to the throttle body vacuum source, the one going over to the MAP on the firewall. should I move it??? and no the exhaust isnt that loud, i can hear the turbo spooling, i know i should be able to hear the BOV and its doing nothing.

EgLsTurbo

on my car my BOV has a hose that goes all the way to the bottom left corner on the manifold and have a t bracket there and have 3 tube come out of it 1 go to back of manifold 1 go to boost gauge and 1 go to forgot haha gotta look

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EgLsTurbo &raquo;</TD></TR><TR><TD CLASS="quote">on my car my BOV has a hose that goes all the way to the bottom left corner on the manifold and have a t bracket there and have 3 tube come out of it 1 go to back of manifold 1 go to boost gauge and 1 go to forgot haha gotta look</TD></TR></TABLE>

bottom left, looking from the front of the car????? or bottom right??

does it go to the brake booster on the firewall???

bubs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crxhfb16 &raquo;</TD></TR><TR><TD CLASS="quote">OK maybe thats it, this is the first turbo setup i have done. its hooked up to the throttle body vacuum source, the one going over to the MAP on the firewall. should I move it??? and no the exhaust isnt that loud, i can hear the turbo spooling, i know i should be able to hear the BOV and its doing nothing.</TD></TR></TABLE>

Yeah, you should move it. The source needs to be after the throttle body/plate, so that when it closes, it stops the positive pressure in the intake manifold and creates a vacuum, which in turn opens the BOV.

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bubs &raquo;</TD></TR><TR><TD CLASS="quote">

Yeah, you should move it. The source needs to be after the throttle body/plate, so that when it closes, it stops the positive pressure in the intake manifold and creates a vacuum, which in turn opens the BOV.
</TD></TR></TABLE>thanks, Im a NOOB, i will try that tonight and see if gets the BOV releasing.

bubs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crxhfb16 &raquo;</TD></TR><TR><TD CLASS="quote">thanks, Im a NOOB, i will try that tonight and see if gets the BOV releasing. </TD></TR></TABLE>

Good luck, let us know how it turns out.

lightcrx

putting it inline with the map is probley the worst place to put it, try putting it where the pcv valve gets its vac from

no2unenolife

my bov is teed to the brake booster

88crxhfb16

OK now, while in neutral 5 to 6k rev's yeild small Blow offs. put my hand in front of the BOV and can feel the air come out as soon as the throttle is released. I'm guessing while driving it will be alot more.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by no2unenolife &raquo;</TD></TR><TR><TD CLASS="quote">my bov is teed to the brake booster
</TD></TR></TABLE>

mine is going there to. just got this in the mail. gonna mount it to the firewall and run BOV, gauges, FMU, and wastegate to it.

AspectIndustries

You probably cant hear it, due to loud exhaust noise. It may be working, yet your exhaust ( open downpipe ) is toooo loud. Little whistle at 5k rpm is pretty quiet.

0bd1_Kanobe

Can i see a pic on how to t it to the brake booster?

88crxhfb16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BseriesHybrid &raquo;</TD></TR><TR><TD CLASS="quote">Can i see a pic on how to t it to the brake booster?</TD></TR></TABLE>

JDM EJ1 95

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88crxhfb16 &raquo;</TD></TR><TR><TD CLASS="quote">OK maybe thats it, this is the first turbo setup i have done. its hooked up to the throttle body vacuum source, the one going over to the MAP on the firewall. should I move it??? and no the exhaust isnt that loud, i can hear the turbo spooling, i know i should be able to hear the BOV and its doing nothing.</TD></TR></TABLE>

thats a source of boost... tee it off your fuel pressure regulator/brake booster or anything AFTER!!! the throttle body

GWInquisitor14

sorry to jack ur thread, but i have my HSK BOV's vacuum line teed off the map sensor vacuum line, is it really that bad? Its kinda quiet and flutters, which has been debated to be correct or not.

JDM EJ1 95

dont tee it off the map sensor!.... tee it off after the throttle body itll work better

GWInquisitor14

okay thanx, i dunno why but i was under the impression that the map sensor was after the throttle plate, guess i just didn't look hard enough.