S&S reed valve for Evo big twins

[Roger]

S&S claim their new reed valve for Evolution engines increases air flow and allows Evolution style engines to breathe more easily.
Designed to work on crankcase pressure rather than timing, the reed valve is an upgraded replacement. . It has three steel reeds that open on the downstroke of the piston, allowing improved cam chest venting. When the piston changes direction, the vacuum closes the reeds, preventing air from entering the crankcase and maintaining pressure, thus improving scavenging.

[kiwidave]

Interesting.....does this work best on late head breather bikes, the 84-92 crankcase breathers, or both?

[treborific]

To digress a little....
This 'peewee' also has a reedvalve induction system.
http://www.coxmodels.com/prodinfo.asp?number=C00100
Just a bit smaller is all! .020cu in

[S.T.Chapman]

Originally Posted by treborific

To digress a little....
This 'peewee' also has a reedvalve induction system.
http://www.coxmodels.com/prodinfo.asp?number=C00100
Just a bit smaller is all! .020cu in

I think you find thats a different application, along with belt driven go-cart engines and remember the yam version?

more importantly the EVO version follows the sucess of twim cam version.
A sensible method of curing puking.

http://www.jpcycles.com/footer/GenInfo/PDFs/32-33.pdf

I've had a look around for a supplier and can't find them anywhere? Maybe me just being stupid, do you have a link or site I could go to, price etc?

David

Roger

Where can you get one from, and what cost are we looking at?

David

[S.T.Chapman]

you could try headquarters, I had one for a twincam and a nice company to deal with.

[banquo]

It's on Page 54 of their EVO catalogue (which, bizarrely, is Page 56 when you select it from the on-line view option on the left of the screen).
http://www.sscycle.com/catalog17/Evo.../Evolution.htm

Thanks for the link, looks like a credit card damaging catalogue if ever i saw one. Any idea on cost anyone?

Regards

David

[girlyglide]

Originally Posted by Bowenman

Thanks for the link, looks like a credit card damaging catalogue if ever i saw one. Any idea on cost anyone?

Regards

David

Price to HDRCGB members £99.51 inc VAT