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View Full Version : Ok Question, Blow-Off Vavle or Deverter Valve?



hwydemon
07-19-2004, 07:08 PM
Ok so I have this friend with a 1.8T and he has a Deverter Valve that sounds Sick as Hell. Will it work on my MSP and should I get one?



Or is this a Stupid ?

Let me know. (hand) (rofl) (rofl)

TiGrayMsp716
07-19-2004, 07:26 PM
What valve is it? BTW i'm pretty sure that diverter valve is just another name for a by pass valve....

hwydemon
07-19-2004, 07:29 PM
Dude All I know is that it Recycles the all the air back and it sounds like a Jet when he floors it. Trust me its wicked.

TiGrayMsp716
07-19-2004, 07:36 PM
Uh well the Diverter valve shouldn't make any noise when he floors it. That's just his turbo spooling up. The 1.8T's run higher boost than we do.....

hwydemon
07-19-2004, 07:40 PM
Oh No its It hiss's so loud it sounds like a Jet. It scares the Shit out of Pedestrians. LOL No Seriously.

TiGrayMsp716
07-19-2004, 07:46 PM
A friend of mine has the new GLI and stock you couldn't even hear the diverter valve. His turbo spools pretty loud. He has the forge diverter valve and that has very distinct sound but it doesn't hiss.

Diverter valve (DV, BOV, or BPV) should only make noise when you let off the gas when you let off the gas. Maybe i'm just not understanding you discription....

tekkie
07-19-2004, 07:46 PM
if you want to scare people just get the injen intake, the crazy turkey will scare the shit out of them ;)

hwydemon
07-19-2004, 07:48 PM
Tekkie That Ok, I heard your Turkey and it scary yes, but Retarded Scary.

tekkie
07-19-2004, 07:50 PM
lol yeah, I will fix that when I get my new one from ES

hwydemon
07-19-2004, 07:53 PM
Dude you getting another one from them. ES How much. Let me know.

tekkie
07-19-2004, 08:04 PM
I dont have one right now, mine is still stock,Tiwing has one though. I am not getting it yet I have many other mods before that. Is the guys capable of hooking to plastic like our crappy ones? or does it just work with hard pipes?

TiGrayMsp716
07-19-2004, 08:08 PM
Forge sells a BOV and BPV that both work with the factory pipes
http://http://www.forgemotorsport.com/vehicles.asp?cat=mazda

hwydemon
07-20-2004, 12:11 AM
Ok I understand but my Question is still not answered. Where can I go to get an Answer. Thanks for your help guys.

mspeed101
07-20-2004, 12:22 AM
Well our stock bypass valve leaks at 10psi so if your planning on boosting over that then get the dv. Thats why I got mine im running the forge diveter valve. Unfortunately you still get the turkey sound.

wicked
07-20-2004, 12:30 AM
Ok I understand but my Question is still not answered. Where can I go to get an Answer. Thanks for your help guys.
don't be a prick.
they can't answer your question cause your question may be wrong.
if the sound you here is when he is accelarating then it's the turbo spooling.
if it's when he shifts or lets of throttle the it's his diverter(BOV,BPV).
if it is his BOV then you need to find out what one it is then come back and tell us what one it is and them we can answer.

basicly you can run almost any BOV if you maintain your stock BPV at the same time.
if you want to get rid of your BPV then you need a recerculating BOV or a dual piston or dual chamber BOV.

if this don't answer your question then you shoutdn't have ever asked the damn question instead you should be spending time reading old post and learning some things.

hwydemon
07-20-2004, 03:55 PM
First thing First, Dude Wicked is your name. I said thank you and maybe I was asking the wrong Question. No need to be retarded. Not everyone is as knowledgable as you. Im not a Prick, I just asked the wrong F*#^@ ?.

Notorious
07-20-2004, 04:32 PM
like everyone said, the diverter valve doesn't make a sound when the car is floored. Only when the pressure from the pipes are released will the valve ever make a sound. If you want a whooosh of air sounds just get a larger bypass valve and modify to spring so the car won't surge.

Glowmunkey
07-20-2004, 05:18 PM
A lot of the 1.8T drivers use the Turbo XS type H25 bpv, that's what I run on my MSP. No angry turkey, no second bov/bpv or anything of the sort. You can make it work with the stock pipes or hardpipes. You'll need an open air filter to really hear it.

Maybe that helps?

wicked
07-20-2004, 10:25 PM
First thing First, Dude Wicked is your name. I said thank you and maybe I was asking the wrong Question. No need to be retarded. Not everyone is as knowledgable as you. Im not a Prick, I just asked the wrong F*#^@ ?.
ha,ha, what a dick.dosen't even realize when someone is trying to help.


any way if you want one that works wellwon't stall and sounds great,then you have few options.

turbosmart dual bypass/BOV
greddy type-s
forge dual piston
HKS SSQV
turbo XS type-h
or stock

the forge is awsome cause it was made for our car and it attaches to the stock pipes.

hwydemon
07-20-2004, 10:30 PM
Thanks for your help everyone. Now all I need to do is make a decision. Thanks Again. and Special Thanks to Wicked.

wicked
07-20-2004, 10:41 PM
my advise,get the forge.
I'll be ordering mine in a few days.

TiGrayMsp716
07-20-2004, 10:44 PM
The forge is a good unit and easy install.... bug them about the upper IC pipe they haven't released a date for sale yet though. The BOV sounds sooo much better with it....

hwydemon
07-21-2004, 03:57 PM
Ya Ok but how to install a Forged onto a stock plastic pipe.?

tekkie
07-21-2004, 07:33 PM
itse easy to do man ;) I think there is a how to here somewhere but I dont see it

this guy maybe still selling his http://www.msprotege.com/forum/showthread.php?t=71366&page=1&pp=15&highlight=forge

this shows how simple it is to install

http://www.msprotege.com/forum/showthread.php?t=67418&highlight=forge

here are some pics against the stock one
http://www.msprotege.com/forum/atta...achmentid=14199 (http://www.msprotege.com/forum/attachment.php?attachmentid=14199)
http://www.msprotege.com/forum/atta...achmentid=14200 (http://www.msprotege.com/forum/attachment.php?attachmentid=14200)
http://www.msprotege.com/forum/atta...achmentid=14201

but until you do some other upgrades I think its a waste of money :)

ICEMAN.2
07-21-2004, 07:57 PM
I have the FORGE BOV now , have minor stalling problem with it but running too rich and have some backfire sometimes :(

Will change for the TURBOSMART dual port so i will stop running rich !

sickspeed94
07-21-2004, 08:23 PM
A lot of the 1.8T drivers use the Turbo XS type H25 bpv, that's what I run on my MSP. No angry turkey, no second bov/bpv or anything of the sort. You can make it work with the stock pipes or hardpipes. You'll need an open air filter to really hear it.

Maybe that helps?

i have one as well, ran it for about 10 minutes on ghetto setup and it went great, all i need now is a hose to hook up to it and fopr my car to be repaired from the crash and i'll put it back on. BTW Glowmunky is it any louder since it's metal now and not plastic, i don't really remember.

Glowmunkey
07-22-2004, 10:54 PM
The Turbo XS on the metal pipes is louder than the stock BPV with plastic pipes, and louder than the Turbo XS on stock pipes. But I also didn't have my Injen installed with the stock pipes...