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Old 06-03-2013, 06:49 PM
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Mr Cox
 
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Default RE: Cox .051 R/C Engine Hi-Perf Glow Head
A band from a Soda can will stop the leak around the muffler. The gap is too large to be an accident, it is possibly there to reduce the powerloss from adding a muffler. Might have been a first try before they decided to make it non SPI...

I have run a few different heads and they all sort of work, but I've had the best results with a head that takes a Turbo plug. The high compression ones do need a few extra head shims, while he low compression head is a little too low on compression for 10% nitro. Here is a little video of it on the regular low compression head and a graupner 6x3 prop;

[youtube]http://www.youtube.com/watch?v=xEGKeaqu8Go[/youtube]
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