Daraji Posted February 27, 2013 Author Report Share Posted February 27, 2013 Can you tell us which octane number they use? RON= research octane number MON= motor octane number Typically as long as the MON is 92+ on a stocker you can run a 20-21 cc dome. If it is higher, give it timing to. We usually use the 95 octane on motorcycles,ATV's We have 3 types of fuel ( 91 Octane also know to us as "E-PLUS", Then we have the 95 Octane ( recomended by the dealer's) and we also have the 98 Octane for High End Vehicles ) now on my SHEE i have always used 95 cuz thats whats recommended to us ) what would you recommended 20 CC or 21 cc? and also one more thing DOES THE COOL HEAD IMPROVE MY PERFORMANCE? and which is the best cool head? because im convinced with the PRODESIGN! Quote Link to comment Share on other sites More sharing options...
Daraji Posted February 27, 2013 Author Report Share Posted February 27, 2013 OH and We use RON Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted February 27, 2013 Report Share Posted February 27, 2013 To continue using your 95, wich I assume is like our 93. I would stick with a 21cc dome. If you check it with a gauge and it says 130-140 psi get some 20cc. You will definitely notice a difference in a cool head but I will go ahead and tell ya there are better heads then the Pro Design. They just have way to many pieces and o-rings. Just more leak points that aren't nessacary. They just have more ad dollars making you think it's the way to go. Check out the NOSS machine head. Many colors and it uses your stock head studs and has less pieces. 1 Quote Link to comment Share on other sites More sharing options...
Daraji Posted February 27, 2013 Author Report Share Posted February 27, 2013 To continue using your 95, wich I assume is like our 93. I would stick with a 21cc dome. If you check it with a gauge and it says 130-140 psi get some 20cc. You will definitely notice a difference in a cool head but I will go ahead and tell ya there are better heads then the Pro Design. They just have way to many pieces and o-rings. Just more leak points that aren't nessacary. They just have more ad dollars making you think it's the way to go. Check out the NOSS machine head. Many colors and it uses your stock head studs and has less pieces. Nice all i gotta do now is check my engine pressure huh? sounds great but i have no clue on how to do that -,-, and i think the noss machine site is down! i think im gonna stick with 21cc's in mind + ill speak to dave from noss thanks again dude! Quote Link to comment Share on other sites More sharing options...
Glenyboy Posted February 28, 2013 Report Share Posted February 28, 2013 You check the 'pressure' with an engine compression tool, I'm pretty sure jsparky has a how to video on how to do this on YouTube Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted February 28, 2013 Report Share Posted February 28, 2013 Your fuel is measured in RON.....our fuel is measured and stated differently. Your 95 is equal to our 91 octane. I would not suggest going lower than a 21cc dome with any fuel lower than YOUR 98 octane. Quote Link to comment Share on other sites More sharing options...
Daraji Posted February 28, 2013 Author Report Share Posted February 28, 2013 You check the 'pressure' with an engine compression tool, I'm pretty sure jsparky has a how to video on how to do this on YouTube Im gonna Yuotube it RIGHT AWAY!! thanks! Your fuel is measured in RON.....our fuel is measured and stated differently. Your 95 is equal to our 91 octane. I would not suggest going lower than a 21cc dome with any fuel lower than YOUR 98 octane. Im satisfied with the 21 cc but i contacted ATV GALAXY on ebay and the guy said the 20CC dome would best fit my bike, but since a number of you said 21 then im gonna stick to it, just waiting on Dave from Noss machine head to reply me back! Quote Link to comment Share on other sites More sharing options...
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