Porsche or VW flanges, 901 trans HELP!

[jmd]

so I have been told by my machinist that there is no way that he can drill these 901 output flanges, that the material is too hard?! How is this getting done? Trevor, any insights on this as you've had your's drilled? So now I am back to square one. Getting the 901 output flanges to mate up with the 944 turbo cv's? I am starting to hit a wall here, as this is the only thing keeping me from bolting this all together?

Anyone?

[evilC]

I find it difficult to comprehend that the material is too hard? the only problem that I can source is the fact that the 901 appears to have a 4 bolt/2 dowel arrangement - see http://www.aircooled.net/gnrlsite/re...he5spdconv.htm that gives a good build up of the installation.

Clive

[flat]

Originally Posted by jmd

so I have been told by my machinist that there is no way that he can drill these 901 output flange

I'ts easy breezy, press out the dowels, drill and tap for M8 keensert (I think it's M12x1.25 IIRC) and put in the keensert. It's not hard material and a standard HS drill does the trick.

Good luck..
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