mroberts

Anyone tried these ?

http://cgi.ebay.com/ebaymotors/ws/eB...965019410&rd=1

I'm looking for something <$100 that's an imprevement over stock.

CPTdooberhead

Go with a 993TT or a Forge

Eyal 951

evo

lart951

Those valves look a lot like the Lindsey racing BOV, I paid $ 199.00 for the freaking thing 2 years ago.

mroberts

Is the 993 TT the 993.110.337.50 that Paragon sells ? Is the "stock" 993 one significantly better than the old ones ? I keep hearing how bad the stock ones are, but I'm wondering if the 993 one is good enough to not bother with an aftermarket one.

Can you get a Forge for under $100 - I've usually seen them for about $150

The Lindsey racing ones look nicer.

Eyal 951

the 993 one is the same thing, except it has a reinforcement in the diaphram, a bit better, still not adequate imo.
~Eyal

badass951

993TT valvle is going to break almost as easily. I say go with the Evolution Motorsports diverter valve. Much stronger unit that looks almost completely stock. I am not sure of anyone selling the Forge anymore.

dr pepper

Been very happy with it:

http://www.boostsciences.com/reflex.html

testarossa_td

993 has a brass insert, but can still go bad.
Mine has not but I know someone who's has.
Quick cheap replacement though that will take care of business until you have figured out which you want...or never need depending on your application.

pikey7

I've got a LR one, and never had a problem. Make sure you connect it the right way though.

special tool

The 993 valve does not hold 28 psi very well.

Eyal 951

Jim, all this is on a 993 valve? That means you will probably see some gains (albeit small) with a diverter valve that will seal well? replacing that soon?
~Eyal

special tool

Oh, no way man. I was just kidding around.
I use the Forge "R" - adjustable diaphragn with side vacuum port.
Tested about 7 of them - these are the best.

Eyal 951

hahaha! Should have known, you wouldn't do everything you do, and cheap out on a diverter valve! I'll just go sulk in the corner for a while now...
~Eyal

BoostSciences

mroberts:

The BOV you posted a link too uses high tolerance machining to achieve the seal. Essentially, it uses a metal on metal seal. As you can imagine, such a seal will wear away with time and short of a new piston, you cannot achieve good sealing again. People try to use excessive grease to "refresh" the valve, but that too fails just as quick. Look for a valve that uses replaceable o-ring seals. Also look for one that has more than 1 seal, to provide a degree of safety. Usually these can be found in the $120-$140 range. The extra 20 to 40 dollars is well worth it to ensure proper operation and a long service life. After all, when the BOV starts to leak, whats it worth to not have to regrease every few thousand miles ?

Here are some suggestions:

Forge
TurboXS
BoostSciences

Regards