I was hoping someone with actual experience could tell me how much of a difference can you tell between a Tecumseh 5hp and a 8hp engine.I have a 5hp now with a Comet torque converter and want to upgrade to a 8hp.I would put the comet on the 8hp too.I'm really asking,are we talking a small or large or very large noticed difference in power,speed etc.The 8hp I was looking at was a HM-80 flat head with a non aluminum sleeve.Right now I have a 5hp powersport.Finally I have an oversized 1" tube frame so an 8hp would work well for fit.
Thanks so much....
5hp Tec is OHV? rated at about 3600/4000 rpm, powersports might be rated 4400 rpm. The old iron flathead is rated at 3200/3600 rpm and torque peak about 2000 rpm instead of 2500 or so rpm. Top speed will be about the same but acceleration will be noticably improved.
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