Handyman Posted December 9, 2008 Report Posted December 9, 2008 I currently have 20cc domes in my powervalve motor running 174psi.. I'm thinking about dropping in my 17cc domes to help with the high altitude of 4500 ft(Sand Mountian Nv.) and power loss...I mainly ride at sand mountain and Pismo(when I can afford it). The question I have is what will I need to rejet to for both seal level and 4500ft above sea level?? I know my timing will have to be set and around +7 or +8. I'm currently at +4. I still have OEM bearings on the crank that was been trued and welded. I know the compressin will be at or above 200psi at seal level and I hope to have about 170-180 at 4500ft elevation. Any advise is greatly appreciated...Bansheeseat$$ is the engine builder and I hope he chimes in on this one... We have discussed this before but I have lost all the info he had given me. Thanks in advance Quote
MarineNYC Posted December 10, 2008 Report Posted December 10, 2008 Damn ur gonna drop to 17 and go +7. I could only imagine the smile on ur face on that first WOT. :biggrin: :biggrin: Quote
Handyman Posted December 10, 2008 Author Report Posted December 10, 2008 Damn ur gonna drop to 17 and go +7. I could only imagine the smile on ur face on that first WOT. :biggrin: :biggrin: i can only image the amount of strength it will take to keep me from going off the back end....I may the extra strength velcro Quote
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