which powervalves (poll)

[Thor_rdb]

i had kinda decided on using an rz350 enigine to build next year but after lookin around and askin questions i found their are a lot more powervalve kits for the banshee than i thought, im lookin for anyone that has had experiance with any of these and can offer input. itll be used for mx racing and hard play riding. so if anyone has any experince with these can you give me some info (especially on the PSI Genesis, even if you used the 250R Genesis, or the Trinity 410 kit) the change in thinkin cam when i seen these kits are controlled by exhaust pressure and springs whis seem more reliable (and cheaper to replace) than the rz350 servo and electronics. id hate to fork out the money just to turn around and think i shoulda spent it differently. also, if im usin banshee cases and gears, what rz parts can i use to help make the shiftin smoother

 

thanks again

[rzcolobanshee]

The cheapest option is going to be the rz, the others are more reliable, and more tuneable (you can change the springs in the powervalves to change when they open) you cant change when the rz valves open. If money is not an option go with one of the others. If you don't have much money the rz is the way to go, I know of 2 motors that come with all the electronics for $800. You can easily turn around and sell your banshee motor for the same if not alot more. For smoother shifting you just need to use the rz shift forks, definetly worth doing.

[Holyman]

I agree with the above. The other benefit of the RZ is the fact that if you blow a piston, you can get another jug pretty cheap as opposed to the mono block big bore powervalve jugs where you'd have to buy the whole thing all over again if it couldn't be resleeved.

By the way... if anyone can tell me or better yet show me how one of those exhaust powered valves work, I'd really appreciate it.

[Thor_rdb]

first off money is and isnt a concern. it is a concern to a point that im not gonna spend 5k in chrome and billet (dress up parts that arent functional performance wise, ok, maybe some shiny parts but its not a concern in the sense that im estimating this at a year long project (probably more since things rarely go on schedule) paid for slowly (very slowly) and i beleive in most cases you get what you pay for so im not agaisnt spendin more if it means better performin/reliable. and the way the exhaust power valves work is they use a diaphram and springs. the diphram is pressured by the exhaust gas and cotrols the powervavles. i found a good article on it awhile ago, it explains it a lot better than i do and ill post the link if i can find it again

 

this aint the one i was lookin for but it does discuss how they work

 

http://www.atvsource.com/articles/product_...ervalve_350.htm

[Meat]

I just picked up a set of RZ shift forks on Ebay for my RZ-shee project.

[Thor_rdb]

cool, how much were they? and can ya tell me hopw they work out when you're done

[Meat]

Here a nice RZ motor on ebay, 850 bucks

 

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...1871510136&rd=1

 

Here's the RZ shift fork auction I won. The forks are great, they are definitly RZ forks, they have the rollers on um.

 

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...1866433964&rd=1

 

Here some new content on my website i worked on tonight, its my RZ motor im building. http://www.thebansheezone.com/Bansheezone/...Motor-Juggs.htm