question about the 007 BPV

Stock · Joined: 06 Oct 2005 Posts: 199 Location: outside philly PA

I was wondering if there are any negative effects on installing a different spring in the Bypass Valve then the green one? I am running about 9 psi on the TRD. How about any benefits in installing it?
For example taking the green (up to 15psi) and changing it to yellow (15-23psi)

Thanks in advance

kytc · Joined: 17 Jul 2005 Posts: 1056

I'm running the yellow on mine, no compressor surge or anything. If you're bpv is mounted slightly upside down it will leak some boost with the green so the yellow is good. The only thing I can say for the Forge with the yellow spring is it blows the bosch 110 away.

Stock · Joined: 06 Oct 2005 Posts: 199 Location: outside philly PA

thank you very much sir. how bout any changes in boost levels?

kytc · Joined: 17 Jul 2005 Posts: 1056

I don't have a boost gauge on my car yet but it's just as powerful at peak levels, the only difference is boost comes on sooner and the car feels stronger at the upper rpm's from the boost coming quicker

Simplyscion · Posted: 3/14/06 8:50PM Post subject:

put the red spring in if your running it upside down with a pulley. The Forge is known to leak boost unless the red spring is in there. I had the yellow and blue springs in with different washer combinations and the best ended up being just the regular old red spring.

tikbhoy · Joined: 30 Jul 2005 Posts: 2547 Location: Soh-Kal

dont forget that you can also use other brands than forge007

PghtC · Joined: 14 Jun 2005 Posts: 1509 Location: Bothell, WA

such as?

still learning before I buy.

Scion-ce · Posted: 3/15/06 11:08AM Post subject:

PghtC wrote: such as?

still learning before I buy.

I think Tikbhoy is talking about the hybrid valve from gofastbits.com

Stock · Joined: 06 Oct 2005 Posts: 199 Location: outside philly PA

but thats like $300

HighlanderMac · Joined: 11 Dec 2004 Posts: 948 Location: Keller, TX

OK, well, I am going to be looking for a new BPV soon, and was looking at the Gofastbits ones. How is it holding up tikhboy?

Also, I may look at getting the 007, the only problem is that I am probably going to be making a custom intercooler setup here in the next few weeks, so I am not sure how I am going to run the BPV tubing.

Stock · Joined: 06 Oct 2005 Posts: 199 Location: outside philly PA

one last question will you have higher boost at lower RPMs with an upgraded BPV?

kytc · Joined: 17 Jul 2005 Posts: 1056

You can't go any farther than your pulley will let you

Stock · Joined: 06 Oct 2005 Posts: 199 Location: outside philly PA

yes but i mean will you have a higher level of boost at, lets say, 3k RPMS? (from stock BPV to upgraded)

shuttlegoosecock · Joined: 17 Feb 2005 Posts: 210

yeah tik what size gofastbits valve and which one are you using

kytc · Joined: 17 Jul 2005 Posts: 1056

Yes considering the stock bpv leaks really bad

Scion-ce · Posted: 3/15/06 1:55PM Post subject:

Stock wrote: one last question will you have higher boost at lower RPMs with an upgraded BPV?

With an upgraded bpv, you will see boost sooner. The stock bpv leaks boost like crazy. By having a stiffer spring, you leak less boost, which in turn gives you more boost at a certain RPM than the stock bpv would give you at that same RPM

Scion-ce · Posted: 3/15/06 1:57PM Post subject:

shuttlegoosecock wrote: yeah tik what size gofastbits valve and which one are you using

I believe he is using this one

http://www.gofastbits.com.au/index.php?parentid=products&option=products&sub_option=bovs&sub_sub_option=hybrid

shuttlegoosecock · Joined: 17 Feb 2005 Posts: 210

yeah we just need to know what size to get thats all.

lundy · Joined: 05 Mar 2006 Posts: 163

http://www.stratmosphere.com/hyperboost.htm

This bypass valve is nearly the same as the forge except it uses a teflon coated piston as apposed to a bare aluminium one like the forge. This does nothing for the performance however there is less maitnence involved. Where they want you to grease the forge valve every 3-6 thousands miles the hyperboost valve is good for about 25-30k before you ever need to do maitnence it. That's what sold me. And the HX Compact has been tested up to about 23psi with no leaks.

Hope this helps.

Simplyscion · Posted: 3/15/06 3:46PM Post subject:

lundy wrote: http://www.stratmosphere.com/hyperboost.htm

This bypass valve is nearly the same as the forge except it uses a teflon coated piston as apposed to a bare aluminium one like the forge. This does nothing for the performance however there is less maitnence involved. Where they want you to grease the forge valve every 3-6 thousands miles the hyperboost valve is good for about 25-30k before you ever need to do maitnence it. That's what sold me. And the HX Compact has been tested up to about 23psi with no leaks.

Hope this helps.
my friend runs those in his S4 biturbo. They hold boost pretty good