HPI 12FE/15FE engine clean up and things you should know!
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LIVE The Classic Old HPI Racing Nitro RS4-2 Check and Test - Do we got Compression?
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HPI 15FE Rebuild!
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O.S. .15CVX nitro engine clean up and things you should know.
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HPI Racing 15Fe - Hidden Boost Port Revealed - Shuwa Toki Nitro Engine Overview
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HPI Nitro RS4 2 - 2 Speed Transmission
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NitroGang Live - Vintage HPI Nitro RS4-2 engine (seized) - wolfpack upgrades - comment responses.
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Todds Tips #4 nitro engine repair removing a stripped screw bolt by slotting it with a Dremel cutoff
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