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My complaint is that wiseco advertises their pistons to be 10.5:1 compression and they are actually no more than stock (around 9.7:1), so it's basically only an increase in bore size. Had I known, I would have gotten pistons with a higher compression.
If you want the scoop on the piston differences/ actual vs claimed compression just call fast fred he has difinite thoughts on this.
once I got the ignition timing controlled (so I could run on straight pump gas) my 12:1 engine runs really strong. Big difference from stock!
I do miss the exhaust smell of burning toluene though.
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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