how to crush sti bpv?

325boi · 03-19-2007, 07:44 PM

wanted to find out how to crush the sti bpv.... my friend is going to boost more and herd that this helps him out.... thanks

crystal_Imprezav · 03-20-2007, 06:59 AM

Hammer plus a 12 or 14mm socket. Or a clamp plus socket. You will need a micrometer to measure how much you crush.

325boi · 03-20-2007, 07:04 PM

but what part do you crush... dose anyone have a wright up on this?

FlyinbySTi · 03-21-2007, 05:10 AM

how much boost is he going to be running through the stock BPV.

I have heard good an bad things about crushed bpv's.

This brings back mermory's of the DSM guys, this seems to be a common mod among 1st gen DSM's.

mgsm666 · 03-21-2007, 06:40 AM

Here's the write up: check out a forge recirculating valve...

TraSTi · 03-21-2007, 12:32 PM

crush the golden part... how much?? I would depend on boost but have any ball park numbers

***QuickSilverSTi*** · 03-21-2007, 02:33 PM

Quote:

Originally Posted by mgsm666

Here's the write up: check out an APS BOV

Fixed

325boi · 03-21-2007, 03:00 PM

around 22-24 pounds.... ya i told him to get a forge recirculating valve but he wants to keep the stock one

FlyinbySTi · 03-22-2007, 05:52 AM

I would think the stock BPV is good to hold 22-24psi. I think around 26 is there he may want to head another direction. Mind hold 21psi with no problem.

I'm curious to see what others are running with stock bpv.

WolfPlayer · 03-22-2007, 06:16 AM

http://www.bescaredracing.com/sti/in...v/stock/crush/

t

325boi · 03-22-2007, 10:21 AM

^ thanks.... but what dose it actualy do to the bpv? just wondering....

FlyinbySTi · 03-22-2007, 10:37 AM

when you crush the top it compress's the spring more

With the spring requiring more pressure to move it; it takes more in order for the diaphram in there to open up.

325boi · 03-22-2007, 12:39 PM

now i get it.... what if your on stock boost?

FlyinbySTi · 03-22-2007, 06:22 PM

don't know for sure. I am on 19psi with my bpv stock and have no problems.

I can't say for sure this isn't really my area of expertise.

calisti · 05-14-2007, 10:03 PM

I used a 3/8" ratchet extension with the female side down and a rubber mallet. Just a couple of light blows in the center of the cap should do it.

03-19-2007, 07:44 PM	#1
325boi Junior STI Driver Car: 04 sti Fav Mod: STI radiator hoses Location: san bernardino, CA Posts: 190 Join Date: Oct 2006 Trader Rating: (1)	how to crush sti bpv? wanted to find out how to crush the sti bpv.... my friend is going to boost more and herd that this helps him out.... thanks This ad is not endorsed by this member. Please register or login to hide this ad.

05-14-2007, 10:03 PM	#15
calisti Professional STI Racer Car: 04 WRB STI Fav Mod: vf36 Location: 315 awhp 371 ft/lbs Posts: 764 Join Date: Jul 2004 Trader Rating: (3)	Re: how to crush sti bpv? I used a 3/8" ratchet extension with the female side down and a rubber mallet. Just a couple of light blows in the center of the cap should do it. This ad is not endorsed by this member. Please register or login to hide this ad.

03-20-2007, 06:59 AM	#2
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	Hammer plus a 12 or 14mm socket. Or a clamp plus socket. You will need a micrometer to measure how much you crush.

03-20-2007, 07:04 PM	#3
325boi Junior STI Driver Car: 04 sti Fav Mod: STI radiator hoses Location: san bernardino, CA Posts: 190 Join Date: Oct 2006 Trader Rating: (1)	but what part do you crush... dose anyone have a wright up on this?

03-21-2007, 05:10 AM	#4
FlyinbySTi Silver Member Car: 05' STi Fav Mod: JDM Fogs Posts: 2,317 Join Date: Dec 2005 Trader Rating: (6)	how much boost is he going to be running through the stock BPV. I have heard good an bad things about crushed bpv's. This brings back mermory's of the DSM guys, this seems to be a common mod among 1st gen DSM's.

03-21-2007, 06:40 AM	#5
mgsm666 Spec C Club Car: 05 Aspen Wingless Fav Mod: Driving School / Trunk swap (no attention ftw) Location: NYC/Boston 4 school Posts: 999 Join Date: Sep 2006 Trader Rating: (2)	Here's the write up: check out a forge recirculating valve...

03-21-2007, 12:32 PM	#6
TraSTi Professional STI Racer Posts: 830 Join Date: Apr 2006 Trader Rating: (2)	crush the golden part... how much?? I would depend on boost but have any ball park numbers

03-21-2007, 03:00 PM	#8
325boi Junior STI Driver Car: 04 sti Fav Mod: STI radiator hoses Location: san bernardino, CA Posts: 190 Join Date: Oct 2006 Trader Rating: (1)	around 22-24 pounds.... ya i told him to get a forge recirculating valve but he wants to keep the stock one

03-22-2007, 05:52 AM	#9
FlyinbySTi Silver Member Car: 05' STi Fav Mod: JDM Fogs Posts: 2,317 Join Date: Dec 2005 Trader Rating: (6)	I would think the stock BPV is good to hold 22-24psi. I think around 26 is there he may want to head another direction. Mind hold 21psi with no problem. I'm curious to see what others are running with stock bpv.

03-22-2007, 06:16 AM	#10
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,542 Join Date: Jun 2004 Trader Rating: (6)	http://www.bescaredracing.com/sti/in...v/stock/crush/ t

03-22-2007, 10:21 AM	#11
325boi Junior STI Driver Car: 04 sti Fav Mod: STI radiator hoses Location: san bernardino, CA Posts: 190 Join Date: Oct 2006 Trader Rating: (1)	^ thanks.... but what dose it actualy do to the bpv? just wondering....

03-22-2007, 10:37 AM	#12
FlyinbySTi Silver Member Car: 05' STi Fav Mod: JDM Fogs Posts: 2,317 Join Date: Dec 2005 Trader Rating: (6)	when you crush the top it compress's the spring more With the spring requiring more pressure to move it; it takes more in order for the diaphram in there to open up.

03-22-2007, 12:39 PM	#13
325boi Junior STI Driver Car: 04 sti Fav Mod: STI radiator hoses Location: san bernardino, CA Posts: 190 Join Date: Oct 2006 Trader Rating: (1)	now i get it.... what if your on stock boost?

03-22-2007, 06:22 PM	#14
FlyinbySTi Silver Member Car: 05' STi Fav Mod: JDM Fogs Posts: 2,317 Join Date: Dec 2005 Trader Rating: (6)	don't know for sure. I am on 19psi with my bpv stock and have no problems. I can't say for sure this isn't really my area of expertise.