negro_banshee Posted February 25, 2010 Report Share Posted February 25, 2010 HELLO DOES ANY HAVE A 12 MILL CUB HOW DOES IT RUN AND WHT HP DID YOU GET OFF IT . Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted February 25, 2010 Report Share Posted February 25, 2010 12mm cub? you mean 10mm cub? not that a 12mm cant be done, but its just not a common setup. the 10mm cub is a very common setup with parts readily available. i think on gas theyll make about 110hp. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted February 26, 2010 Report Share Posted February 26, 2010 Stock stroke, 4 mil, 7 mil, 10 mil and 14 mil are the common castings. Then you have stock rod length, 115 and 120 rods. 12 mil is odd...but of course it could be built. Unless you came up with a STEAL on one or you were building a purpose built bike for a certain cc class and the 12 mil put you at the limit of the class...a 10 mil would be financially better. I'd say 10 or 12 mil. In a properly tuned setup and ported by a pro, on methanol you could see 115 to 125HP... Again, depending on the dyno, etc. You'll never see two dynos pull the same number... I won't even comment on track times. That varies even more than the dyno HP numbers. Quote Link to comment Share on other sites More sharing options...
negro_banshee Posted February 26, 2010 Author Report Share Posted February 26, 2010 Stock stroke, 4 mil, 7 mil, 10 mil and 14 mil are the common castings. Then you have stock rod length, 115 and 120 rods. 12 mil is odd...but of course it could be built. Unless you came up with a STEAL on one or you were building a purpose built bike for a certain cc class and the 12 mil put you at the limit of the class...a 10 mil would be financially better. I'd say 10 or 12 mil. In a properly tuned setup and ported by a pro, on methanol you could see 115 to 125HP... Again, depending on the dyno, etc. You'll never see two dynos pull the same number... I won't even comment on track times. That varies even more than the dyno HP numbers. THANKS Quote Link to comment Share on other sites More sharing options...
kolb02 Posted February 26, 2010 Report Share Posted February 26, 2010 (edited) Both the guys I ride with run 12mils on alky and I have never scene them lose! They are very fast. We have not dynoed them but like stated above I bet they make in 125-130hp range. HeavyMod and 686raptor are there screen names. I'm sure they will chime in soon! Edited February 26, 2010 by kolb02 Quote Link to comment Share on other sites More sharing options...
Wheelman Chassis Posted February 27, 2010 Report Share Posted February 27, 2010 so how is it that a well built 4mil cub on alky, can make 100 hp fairly simply and a 12 mil only goes 115-120 hp???but i guess your only changing the arm.. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted February 27, 2010 Report Share Posted February 27, 2010 Both the guys I ride with run 12mils on alky and I have never scene them lose! They are very fast. We have not dynoed them but like stated above I bet they make in 125-130hp range. HeavyMod and 686raptor are there screen names. I'm sure they will chime in soon! It's not that simple to just get 100HP out of a 4 mil cub. Can it be done? Sure...but not "fairly easy". What are the guys with 12 mil cubs racing? There's a reason you have cc classes in racing. The most organized sand/dirt racing sanction has a 0-475cc class. the 12 cubs are just over that at 479 ccs. The next class is 550cc... Dynos are good for tuning...that's it. A smart man here said when a dyno passes me on the track then I'll worry about it's numbers. Quote Link to comment Share on other sites More sharing options...
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