raeser1300
Registered
Do i need to change rotor in my -99 gen1 motor when installing gen2 crank
You need the gen 1 rotor. The PC3 USB needs to setup on a dyno and you need to file a tooth of the idler gear otherwise it wont fit.
For the rest you are ok
Also you need gen 2 crank bearings. Rod bearings are the same.
Don;t forget to put a 1mm or 0.040" spacer plate under the cylinder block.
A spacer will get you by, but your playing with fire going about it this way. The extra stroke with the longer rods causes for more extreme rod angles that add unwanted stress to them. I know of several guys that have done this and have resulted in windowing engines due to broken rods.
For roughly the cost of that spacer, you can find a used set of gen2 pistons and rods for anywhere from free-$75. That way you'll have stock gen 2 geometry which will keep your engine happy, reliable, and together.
Hmmm good info for sure. Thanks 4 sharing this is 1 mod that I considered doing but the risk/reward factor swayed me to reconsider and find HP elsewhere