Quote:
Originally Posted by Okierider
Freaking A man, looks good!
I just contacted Joe Henner about a big bore kit, cam and head work. Will report back when I hear from him.
Mr. Henner is having trouble sourcing pistons.
His kit is a true 300-or rather 289cc kit. Last quote I got for it was $350. If he has any pistons left after filling his current orders I’ll grab one.
He also offers a cam to go with the kit ($165+core exchange) and cylinder head porting ($150+shipping).
I’ve asked about just shipping the whole motor to him and having him do the work, but we need to have pistons first.
In passing he mentioned that his big bore kit with supporting mods makes 3-4 more horse. That would put us around 23 horse. For that engine output the Mikuni manual charts say a 26mm carb is the sweet spot, but a 28(like the stock unit) would work.
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Only 3-4hp? I guess that is something anyway. The Zongshen NC300 (4 valve, liquid jacket) engine has 74mm x 64mm (279cc) and it is rated at ~25hp. That is stock, with not ported head. I guess the 4 valve head helps.
This suggest that my OTM 265 kit might make 2-3hp, but only if I get a cam and port the head. Hmmm.
289cc kit- $350
cam- $165
head porting- $150
That is about $700 with shipping.