Supreme Tool Piston Driven Exhaust Valves

[mtn-doo]

The new Piston driven Rave Valve from Supreme Tool is finishing testing. They will begin production shortly. They are an all aluminum cylinder with an internal piston that is screwed on the Rave Valve shaft. An internal pressure port accesses the inside of the cylinder below the piston and pushes the piston "up" to open the valves. They are 100% boost proof. No bellows or springs etc. to fail under boost. They also do not require bleeding any pressure from your system which gives you the quick spool-up and throttle response you need.
I have been testing them for Supreme Tool for a month now on my Turbo Performance XP with the Garrett 2871 turbocharger and 12 to 14 lbs boost, with tremendous results. Give Mark a call at Supreme Tool, or feel free to shoot me any of your questions. Thanks

 

[Bendy]

Exhaust Valves

Does anyone offer an application like this for my 04 REV?

 

[mtn-doo]

Does anyone offer an application like this for my 04 REV?

I will find out for you. These will work on any model, bolt locations are the only question.
Is this an 800?

 

[Bendy]

800

Yes, 800 HO.

 

[mtn-doo]

Good news!!! They will cover both the 800R, and 800HO motors.

 

[Fireline]

Has Price been put on these yet

 

[Skyking]

Called them last week about them. Said they would be the same price as there other valves. $480.00. Would be a good month before they will be out as well. Hurry!!!!!!!

 

[mtn-doo]

Hey everybody, stopped riding long enough to post a couple pic's. Hit me with any questions, Thanks

 

[nuttyn01]

Hey Randy....does the tee coming off of the exhaust valves tie back into the pressure solenoid from the stock rave assembly?

Hey everybody, stopped riding long enough to post a couple pic's. Hit me with any questions, Thanks


View attachment 135741

 

[brycter]

no it just tees to the atompshere.

 

[mtn-doo]

Yes, it is just a vent to atmosphere. I ran it into the left shock tower. The purpose of that vent is to simply allow the piston to "up-stroke" in a sealed cylinder.

 

[lookup]

what would be the advantages of this system verses others if you don't mind me asking?

 

[brycter]

the advantage is there is no rubber bellows to come apart.

 

[lookup]

what performance gain do you get ?

 

[brycter]

the only performance that you gain is being able to run higher boost levels without bellows comming apart. or and bottom end throttle response if you have blown bellows right now.

 

[Jbest103]

do they make these for the turbo etec yet?

 

[nuttyn01]

Rate

It sounds to me like you have a little more control over the rate at which the valves open/close which should help the bottom end performance additionally over the stock valve.

 

[Bendy]

800 HO

I talked to Mark at Supreme Tool, and he will not be making these valves for the older Ski-doo 800 HO motors.

 

[mtn-doo]

They have huge gains over block-offs. The difference is totally a different sled. Bottom end and response is like a stock sled. The same as having stock bellows, but you can change the rate and NEVER tear or blow a bellow off.

 

[Bendy]

Brutal!

I'd rather repair a blown bellows on the trail than put block-offs in. Bottom end suffers immensely. Bryce (Turboboyz) gave me a great Idea to reduce boost pressure in the bellows and still have the valve function normally.