O.S. GT33 Tuning and Testing - Part 1 - Header Only
I'm working with the O.S. GT33 using a MACS Products header and tuned pipe. I ran the engine with an APC 18x12 racing prop and got over 7800 RPM. I'm using my new Spektrum telemetry test setup with a Spektrum RPM sensor for gas engines. Works great on almost any gas engine. Unfortunately David McAllister of MACS Products passed away recently and the header and pipe may not be available again. If testing goes well, I will talk to Dub Jett about a tuned muffler for DLE-30 compatible exhaust engines.
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O.S. GT33 Tuning and Performance - Part 2 - Tuned Pipe with APC 18x12
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