Yes WD, I'm back on the twin disc thing

[Iamjohnhayes]

ok so here's the deal.

My brother bought an Ogura Twin Disc for his car and he realized that something was a bit wrong with it. It had 6 holes for bolts and his RX-7 only uses one big flywheel nut. So wee do some research and on a few ogura sites we noticed it says it will work on an S13 with no adapters and it has 6 holes on the flywheel so it can't be for an sr20.

So...

Does anyone know what the distance between the bolts is (bolt pattern) on the flywheel? Also What is the overall diameter of the flywheel for a KA? If anyone has come across the exact number of teeth on the flywheel (which i doubt) that would be cool too.

And for all those who care it is an Ogura (ORC) 709 Twin Plate Clutch.

[deviousKA]

Sounds like it could be from an RB.

Im not sure of the ring gear count or the bolt spacing, not offhand anyways.

RB's use same ring gear count and attachment pattern as ka btw, its the only way to get a true OS Giken multidisk on there.

[Iamjohnhayes]

i just thought it was strange how it says on more than one site that thr ORC 709 is made for a bunch of cars including rx-7's a few skylines and then it also says s13 and s14 (w/o needing any adapters) yet it has the 6 bolt holes.