My special Optima Mid

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Hello , at first this project was to build a runner from a stock Optima Mid i picked up from Ebay .

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let's start with a complete disassembly

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All parts cleaned and polished



I milled the stock chassis

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I put the right screws on the wing mount



The buggy will be fully equipped with some optional parts that i already had.
Front universal shafts


Steel center gear (OT85) and rear ball diff

[coxbros1]

Look'n good!

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LiteSink motor plate, carbon fiber mounts and home made anti sway bar



Robinson Racing 48p main gear and Parma slip clutch system

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Front ball diff



c/f mounts - anti sway bar


Robinson adjustable rear toe-in system

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After polishing ...


Rc10 repro wing (trimed)



Optima Pro repro body

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Tamiya PS49 sky blue , amazing color !

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The aluminium chassis was not to my taste , luckily i found something unique to replace it




2nd strip down I took the opportunity to swap the ball diffs with gear diffs and install a new front bumper

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Trinity Pure Gold 18x2



Completed !


As you can guess it's too clean to race , now the runner project turned into a winner contest (botm July 2020).
All comments or questions are welcome !

[Coelacanth]

Beautiful build, blast! I really like your color choices for the paint, quite original! I see you mounted your LiteSink the same way I did with one of my builds, mounting it inboard instead of outboard. I think it's meant to be mounted outboard so the heatsink is outside the body where it will get some airflow. It's definitely cleaner mounted inboard, but you might have to consider that cooling ability will be reduced with almost no airflow passing over the heatsink when it's mounted inboard. I addressed that issue by cutting a hole in the front window and an exit hole at the back...at least if you'll be running it.

[XLR8]

Wow, what an awesome build!
Thank you for posting it here.
It's great to see how this car came together.