I have 2 super G chasis. How would I hop them up for drag racing? Thank you. Jody

I'm not really a drag racer.
But you can start with a BSRT 31 wire spinner armature, BSRT 8/20 poly gears,
and .250 double flange rear hubs with Supertires.

That will make them go fast.
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http://www.sloganizer.net/en/style8,SuperFist.png

Also you would need the neo drag motor magnets to get the performance out of the 31 arm. Plan on $100 to $200 in additional parts per car. Also you need a decent power supply for it all to work.

With that 31 spinner and Neo motor magnets you will also need brass and or metal gears as the plastic ones won't hold up long.