Keihin vel. stacks and "power now"

Killerwhale · Post by **Killerwhale** » Fri Sep 21, 2007 6:43 pm

So, you with kehin FCRÃƒâ€šÃ‚Â´s....
Have you ever played around with different velocity stacks?

Anyone tried the "power now" kit??

http://www.cyclebuy.com/shopping/powernow/pn_system.htm

Post by **phuk72** » Fri Sep 21, 2007 8:05 pm

Can they be run with pod filters? I'd be interested in seeing before and after dyno runs

Killerwhale · Post by **Killerwhale** » Fri Sep 21, 2007 8:10 pm

phuk72 wrote:Can they be run with pod filters? I'd be interested in seeing before and after dyno runs

I havenÃƒâ€šÃ‚Â´t read up on it yet, but the theory is interesting!
...mostly used in the MX world though...

Quan-Time · Post by **Quan-Time** » Sat Sep 22, 2007 11:15 am

umm,, ok.. velocity stacks.. there's a HUGE science between all models.

id be VERY impressed if it provided 2hp on ANY bike.. let alone the TRX.

mental note... different chains provide up to 3hp on a TRX.. this means i think these power stacks or whatever they are,, are basically shit.
The aid in reducing "swirl" or "tumble" in the chamber.. by reducing tumble you DO increase HP.. but 2+ valve configs hardly ever suffer this.. thus, a 3v head ? ffs..

id be VERY interested to see the results.. my honest expectations.. 0hp, ~2-5% increased torque (i have a theory.. but i need to see the TRX one to get a final figgure..)

Killerwhale · Post by **Killerwhale** » Sat Sep 22, 2007 3:43 pm

Quan-Time wrote:umm,, ok.. velocity stacks.. there's a HUGE science between all models.

id be VERY impressed if it provided 2hp on ANY bike.. let alone the TRX.

mental note... different chains provide up to 3hp on a TRX.. this means i think these power stacks or whatever they are,, are basically shit.
The aid in reducing "swirl" or "tumble" in the chamber.. by reducing tumble you DO increase HP.. but 2+ valve configs hardly ever suffer this.. thus, a 3v head ? ffs..

id be VERY interested to see the results.. my honest expectations.. 0hp, ~2-5% increased torque (i have a theory.. but i need to see the TRX one to get a final figgure..)

Velocity stacks are used to change powerband....not to increase any HP....or have i missed something??