May 11, 2007

O.S. Speed 12TZ Spec II

O.S. Speed 12TZ Spec II

O.S. Speed of Japan have announced their engines line up for Summer / Autumn this year and among other non car related engines was the Spec II version of the 12TZ motor. A very popular engine for 200mm class racing in Japan the new version of the O.S. Speed 12TZ looks like a very nice engine, with teardrop work on the liner, a lightened, balanced and coated crankshaft and other new features but i cant give you specifics as the site is made in flash and so i cant translate it.

Source: O.S. Speed [osspeed.com]

December 5, 2006

GR Racing tuned OS12TZ

GR Racing OS12TZ

Engine tuners seem to be a dime a dozen these days with anyone who can use a dremel and who has ever taken their engine apart claiming to be a motor maestro. That said, i was impressed with work done by GR Racing, a Korean tuner that takes his dremel and know how to many different types of engines including this OS12TZ 3-port. This engine has had tear dropping done to the liner, ceramic main bearing, crankshaft lightened and modified, crankcase work and even has a job done on the combustion chamber, definitely looks good, the proof of course is on the track.

Check out all the work done in the full picture set on RC Forum who have the scoop.

Source: RC Forum [rcforum.co.kr]

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