power valve

[Wayne Miller]

The one that Marks used is a Rave2 Powervalve/blade its vacuum controlled. You turn the red part in or out to set when you want the powervalve to open. The tighter you screw it in the more revs you need to open the valve. Its a way round the electrics required to open a RAVE typeblade.



And yeah Seans obviously right about the tip of the blade, it needs to be on the cylinder wall to lower the port timings. I'll go grab a cylinder and a RAVE unit and take a few pics when I can

[Wayne Miller]

Ive just been down to the shed and cant find the spare blade that I have, I need to have a propper look at the weekend. I think I have the entire powervalve system from an Aprilia including the loom in the shed somewhere

Anyway I found some pics from my smallframe build that show my barrel with the RAVE type blade fitted:



Heres another one from a different angle with the cable fitted, you can see that it doesnt take up as much space as the RAVE2 unit



You would fit it in exactly the same manner as that Mark did but with this type you would get exact control of when you wanted the valve to open.

Heres a pic of an RD350 servo and an Ignitech control system:

[Wayne Miller]

If your thinking about giving it ago Martin I have a spare rotax cylinder and blade that I can get sent over to you to look at for a short while?

Let me know mate

[RICSPEED]

including the loom in the shed somewhere

and would that be spare ???

[Wayne Miller]

including the loom in the shed somewhere

and would that be spare ???

ha ha ha Ric you crack me up

Not with those new ignition systems knocking about my old mate

[RICSPEED]

including the loom in the shed somewhere

and would that be spare ???

ha ha ha Ric you crack me up

Not with those new ignition systems knocking about my old mate

well ..been given a ped on the condition i take all the s**t (his words ie spare parts..lots) ,theres a fair few looms there so can see if there are any connectors common the the aprilia one

[caspa2006]

got me thinking RB260 power valve yummy, I have an engine at JB's being done do you fancy doing an rb power valve barrel

[Wayne Miller]

got me thinking RB260 power valve yummy, I have an engine at JB's being done do you fancy doing an rb power valve barrel

I wouldnt give Martin your RB260 to practice on if I were you
Idealy I think he'd be looking for a f@@ked up TS cylinder or something

[caspa2006]

thats what i mean once he has had a practice on a few

[RICSPEED]

might find an rb barrel more suited due to exhaust exit angle