|
Mike, I think both the '86 and '87 have 23.5mm TBs but it won't harm taking the later model ones. Hint: check the diameters and the stamp on the inner end (Links & Rechts) as it is not unknown for the TBs to get swapped out for the wrong one. They will be identical but will have been loaded differently so it is imperative to put them in on the correct side.
I understand your need for the stiff front spring rates and of course your static front weight is higher than originally(?). One thought that occurred to me is that if you are using front 2 1/4" coilovers then it would be worth investigating motorcycle monoshock hydraulic adjusters that appear on touring orientated bikes as they could provide an easy, convenient way of adding preload to get you away from the bumpstops.
As an aside, I was scanning some Porsche racing data on suspensions for their 935/76 race cars (as you do on a boring Sat night!) and came across the spring frequencies of 147CPM front and 137CPM rear - well stiff. I don't think they carried a front ar bar but the rear was variable but typically 22mm with a blade type adjuster that had a variation ratio of 8:1 and was adjustable by the driver to account for the reducing fuel load centred over the front axle. the weight distribution was a dry static 40/60 that increased to 47/53 with driver and full fuel load. Also, the brakes were identical front and rear with twin m/cs of 17mm dia front and 22mm dia rear that gives a front bias 1.67:1 although this could be adjusted through the balance bar arrangement.
I've raised these Porsche figures only because of the similarities in layout and weight distribution to a well sorted bug.
Clive
|
June 7th 2010, 07:56
Threaded Mode