if you upgrade to a 210mm,,,,,make sure to re-mark the tdc mark cast in the flywheel ,,it wont/doesnt match anymore,,,,,make a piston stop,its sorta hard in a prechamber engine,,but,,,i stuffed a piece of stainless safetywire in,w/the injector out,, turn back+forth as fw. is marked,split the difference,etc,,,the orig.mark is at least 1 inch off,,so its no big deal ya think,right now,,,,,have fun when it comes time to do a timing belt :roll: ,you will be screwed,,,,,so remark the tdc mark on those 210 mm flywheels,if used on a diesel,,,,,,i did like the centerforce dual friction in my 1.6,,,it was about 250$us