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Old 05-25-2009 | 03:08 PM
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DarZeelon
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From: Rosh-HaAyin, ISRAEL
Default RE: os 61sf

ORIGINAL: tony0707

Hi, OS.61SF - Macs pipe cut down 1/2 inch (to remove the baffle) - on a 12-6 APC exhaust port on muffler ground out - always to match engine exhaust port - 12,600 RPM-on my 60 size Super Kaos - amazing performance - 15% Morgan Omega fuel - this engines is a powerhouse.
Tony,


That is a relatively lackluster 1.58 HP...

My MVVS .49, on the mini-pipe, showed 1.67 HP, on an 11.5x6 Bolly Clubman; spinning it at 13,600 RPM, on just 5% nitro...
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