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Old 07-22-2013, 06:10 AM
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HHH
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Default ZAC Project OS .12?
Does anyone know if ZAC Project has plans to, or in the past did make a .12 similar to this .21 engine?

http://www.dr-racing.com/zac-project-os-speed-21xz-r/

Any ideas why or why not?
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Old 07-22-2013, 10:55 AM
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Originally Posted by HHH
Does anyone know if ZAC Project has plans to, or in the past did make a .12 similar to this .21 engine?

http://www.dr-racing.com/zac-project-os-speed-21xz-r/

Any ideas why or why not?
I did asked before, nope they are not making one. I believe because they are more 8th-centric.
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Old 07-23-2013, 04:19 AM
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i have the 21, just finished run-in, but don't really tune it to run yet. any comment on this 21 machine?
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Old 07-23-2013, 06:32 AM
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Originally Posted by choisan
i have the 21, just finished run-in, but don't really tune it to run yet. any comment on this 21 machine?
It's excellent, superb value.
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Old 07-23-2013, 09:20 AM
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Originally Posted by choisan
i have the 21, just finished run-in, but don't really tune it to run yet. any comment on this 21 machine?
Good powerband.. smoother than the original OS Speed.
The main difference is the crankshaft, which is balanced
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Old 07-23-2013, 04:36 PM
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Thanks, really anticipating to see its performance
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Old 07-07-2014, 08:23 PM
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http://www.tabata-racing.com/zac/new.html#ENG-12XZ-3
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