Thread: Head porting...
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Old 07-01-2012, 05:20 AM
chuckorlando chuckorlando is offline
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Join Date: Apr 2010
Posts: 356
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I should be right at 70hp and right at 2k. But for 2k every single part is brand new. New 5mm stroker crank, new counterbalance, all new bearings, all new seals, trail ports adjusted for the crank, HPD billet head milled for the stroker(unfortunatly I have to run 50/50 108 race fuel), Girdle for the cylinder, case saver, machine carb to make it as big as god will allow(2+hp in a 40-42mm carb still on the table over the 2hp from a bored stocker35.5mm), v force 2 reeds, and trail pipe. And I had ritter put the bottom end together and send a new piston, rings, and gaskets and included a fresh bore.

Now I leave cheap power on the table as well. I can have my flywheel machined which will allow the engine to spool faster an is said to be as much gain as ports. Thats 60 bucks. Then the bigger carb as well. If a guy wanted a basic trail mod engine, basicly my engine minus a stroker, and is willing to split the case, clean it, and rebuild it, you can get 55-65hp for 1000-1500

Ports+250-300, head machined= 60, girdle = 150, rebuilt crank = 150, rebuilt counter=60, bored carb = 60, pipe = 300, case save = 60, bearings for the bottom with gaskets bout 200.

Basicly the 400 power levels are as follows... Stock engine 35hp. Trail mod is 55-65hp. Race engine is 75-85hp, drag engine is 85-95hp and a powermax or aaen with the sled reed cage welded on is in the 125hp range.

WELCOME TO THE WORLD OF THE 2 STROKE
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