Hi Taz / San
Some good points. I had thought about the balance probs, and was considering balancing the hub after. I just still am not sure about the ammount of vibration that may occur at this small radius campared to the tyre diameter. Maybe I need to do some testing.
As for 17" well the radial clearence is not the problem, I have about 5mm on 16" at the moment. The problem lies with the extra pistons on the outside of the brake caliper taking up the space between the wheel. I need wheels with a 25 or 28mm offset to clear it. At the moment i have a spacer which along with the v long wheel bolts is proving to be a real hassle, mainly because there is no longer any spigot to go into the wheel after the spacer. It all moves because they are three seperate items, and that caused the wheel to come loose just a couple of weeks ago. Each time you brake in reverse then brake forward it groinches(if thats a real word) and the movement allows the wheel bolts to work loose. I am torquing them up every 100 miles of so at the moment to keep a check on them.
I have some brake rotors that i was going to make up centre bells for with a thick face to act as the spacer, so it is not a loose part that can move seperately. However this still means having long wheel bolts, and the longer they are and the more spaced away the shear line is and so the more everything moves.
The ideal solution would be to find 4 bolt wheels pcd 98 that have a 25mm offset. Does the phrase rare as rocking horse s#1t sound familiar.
My idea was to use 5 bolt hubs, to allow me to use gtv 3l wheels that clear the caliper, or even use 156/147GTA wheels, both of which clear the same caliper. That would also allow me to use GTA brake discs and do away with the flappy bell device.
Maybe I wont drill the original hubs, i could look at machining up 164 ones to fit?
So the story continues.