Scat T4 pistons

[VW911]

I am far from being German, speaking it or reading it but someone help me out hear. I was looking in A.Knuf.PTP cat and I saw what I thnk was Scat 100mm Aluminum jugged type 4 pistons. Can someone help me out here for a 66mm crank. Any feedback?

[Pete S]

On page 70, type4 piston and jugs for the 1.7 and 1.8 (66mm stroke)are listed.

93mm and bigger require the heads to be machined.
94mm require the rods to be rebushed to 22mm.
100mm require the case and heads machined. 100mm pistons and cylinders are Scat cast aluminum.

Any other questions?
Don't forget, you can ask directly on the Knuf Performance Forum: http://www.insidetheweb.com/mbs.cgi/mb1084902

Pete S

[vw@micron.net]

I talked extensively to Oliver about this back in December. I was considering buying a used engine with the Al finned Scat 100 setup. Scat no longer sells these, they are only available NOS or used. I don't even know if Oliver still has them. You could potentially throw away the 66mm stroke pin height pistons which come with the set listed in his catalog and run some JE 4" pistons. It ends up costing about the same as a set of 103s and strong heads though. The Al fins are bitchen though. I wish we could fit late Carrera Al finned barrels to our engines Easily.

[VW911]

I have a set of the Aluminum jugs punched out to accommindate a 101.5mm piston. I will get JE or Venolia make me a set. I was thinking of going with a 74 or 76mm crank now after seeing the stretch weld job on a 71mm crank. It did not look too pretty. The part that has got me concerned about the 78.4mm is part of the journal is above the 71mm webs built up with weld. for a mere $500 for a stroker I would feel more more confident with all the journal welded to the stock webs. These jugs are awsome and will allow for better cooling along with my sodium filled valves in my heads.