Either by a Dynoport pipe or clutch the wy it needs

 

Do you know what RPM that CPI pipe needs to run at? My HPD trail setup pulls close to 6800 rpm's with the HPD red/yellow spring and stock weights.

 

Try a HPD blue primary with the stock weights and a HPD violet secondary spring in the 2-2 position. That pipe revs pretty high. Let us know what you decide and give us a report.

 

I'm with wiscrambler a red yellow with stock wts, violet secondary spring. I have ran that setup with a cpi on sand too I liked it the best and I tried probably 5 or 6 different setups and I ride sand alot. The dynoport pipe is an absolute dog in sand. IMO Spins and digs down off the line then just dies up top.

 

ok boys speaking from first hand experience, hpd blue with s55 for trail/dune/recreational riding. violet secondary set at 1 to 1

i cant tell you what im runing 4 drag because some of my competition is getting on this site watching every move i make. if you wana know send me a pm. [img]i/expressions/face-icon-small-wink.gif[/img]

ross

 

obtw you need some portwork to really get the most out of that pipe

 

I talked to Mike at CPI and he said the pipe should run 7800-8000rpm.He said he ran the dk.blue primary in his.I guess I'll go through RCR and by what I need,plan on portwork,girdle kit,may set her up on alky!!