http://www.sound-performance.com/p19...duct_info.html


Interesting but the plate is a restriction even in closed position.

 

I know a couple guys who have used those, Im doing one in a Supra in a couple weeks. I really wanna get one in an Evo with a 4088.

 

looks interesting.... does anyone think this actually works? anyone got any real world experience with one?

 

I'm not understanding how that helps spool a larger turbo; it looks like more of a restriction that would slow down the ability of a bigger turbo to spool. Wouldn't you want all your exhaust flow on the turbine wheel and not restrict it to 1/2?

 

could you imagine if that thing failed and the butterfly dropped?

 

^^ Exactly what I was thinking! That is alot of heat in there!

 

Creamo3, concept is pretty simple. Use an undivided manifold, twin scroll turbo. All of the exhaust is directed through half of the manifold which means increased exhaust velocity making the turbo spool quicker. The valve opens at certain a certain pressure and increases flow at high RPM.

They do in fact work, Ive seen them on the dyno. I saw one that on a bigger turbo, spool was about 5-600 RPM better than non valved.

 

Chris/Larry have done testing, it spools a LARGE turbo supra apparently ~500rpms quicker, its all about velocity.

 

would it be easier to just use a twin scroll manifold or are the gains still better ?

 

What's interesting if you use a standalone to control the valve and vary the position, it might be beneficial.

 

It'll theoretically "spool" the turbo a little better than a twin scroll manifold would, because you're technically turing the turbine housing into one half it's normal size. Once spooled, however, a proper twin scroll manifold would have the advantage by properly pulsing the exhaust. Add in the possiblity of the blade/shaft seizing up or breaking off, and I'll stick to a real twin scroll setup any day.

 

Anyone here tested them and/or have a dynosheet before and after?

 

This is in fact the only way this would work well. open manifold feeding a twin scroll turbine housing. In this configuration it would have to work. A 1.06 TS housing would in affect become a .53 while the valve was closed.

The 64 million dollar question is. would it spool faster than twin scroll mani feeding a twin scroll turbine housing. That would be an interesting test. I wonder if anyone has done this type of testing on it.

 

This valve is a very cool concept. I would love to see more testing aside from whats shone by the company who makes the product. It seems like its much more beneficial for large turbos. I wonder how it would preform on a much smaller turbo...

 

Meh, id have to see some prove that it works....theoretically it does seem like it could be beneficial.