Originally Posted by dvu
Thanks for the advice. If I do get the MTX-4 clutch, which hole would I need to widen (the flywheel hole)?
I'm not sure if the MTX4 clutch fits, I was referring to the MTX3 clutch, and the holes you need to widen are the engine mount holes in the chassis. The MTX3 had 1.0 module gears so the pinions from it should be a direct fit, or you can upgrade to the R40 Hara/2005 lightweight 2 speed and use 0.8 mugen spurs which are tougher than the HPI ones with mugen pinions
All of this is pretty pricey, and then you've got to get the thing to handle, replace the rear camber links (the stock ball joints strip) AND find parts. Personally I think you'd be better off buying a 2nd hand MTX4