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Agreed, i am not bragging about the output. The values are irrelevant. My question is, if you have an out of box motor running say 13HP and bring it into spec (10.5HP), would it perform any different from an out of box motor of about 11.6HP, reduced to same 10.5HP, Would the higher spec motor...

WOW!! What a lot of negative comments on a straight forward question! The lawnmower series was derived from our sons running these little clones (Hoffmann 212cc HY7) on Mini Go karts. Their series has a strict scrutineering process and yes, the engines are run on a Dyno (see attached), to get...

Hi, we have a Lawn Mower racing series, where we are limited on HP output through our rules. We use a standard Predator knock off 212cc engine, which pushes about 12+HP, with Govenor removed. To bring them all into spec, we add head gaskets, to reduce the power. My question is, if you have an...