JaySmithRacing
Active Member
Bad advise!
Just tore down a 2005 280 with 80 hours showing on the DDT and to my amazment the bores were cut to pieces above the exhaust port. The top rings were stripped of all the TiN coating and the ring edge was sharp enough to shave.. I quized the owner what type/brand of oil he was using and he told me the dealer /Drag boat racer he bought the motor from NEW told him to mix 2 OZ to a gallon instead of the ROS ECU equipted factory required 4 OZ to a gallon.. VERY expensive lesson, when in dought the factory suggestions would be my choice of ratios on pre mix engines , can't go wrong that way.....
Jay @ JSRE
Just tore down a 2005 280 with 80 hours showing on the DDT and to my amazment the bores were cut to pieces above the exhaust port. The top rings were stripped of all the TiN coating and the ring edge was sharp enough to shave.. I quized the owner what type/brand of oil he was using and he told me the dealer /Drag boat racer he bought the motor from NEW told him to mix 2 OZ to a gallon instead of the ROS ECU equipted factory required 4 OZ to a gallon.. VERY expensive lesson, when in dought the factory suggestions would be my choice of ratios on pre mix engines , can't go wrong that way.....
Jay @ JSRE
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