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How big can you go with a 07K?

PostPosted: Fri Mar 08, 2013 7:29 pm
by paracaidista2.7t
Displacement wise? I know there aren't any stroker cranks, but how big can you bore it, realistically, for a turbo motor? Also, has anyone tried this swap in a B5 or C5? I am intrigued by the VR6, but the 5cyl. just freaking sounds cool.

Re: How big can you go with a 07K?

PostPosted: Fri Mar 08, 2013 7:32 pm
by alxdgr8
I don't think there's any room to bore, maybe 0.5-1mm from when I was looking at it at Iroz. Maybe offset grind the crank but not sure about block clearances.

Re: How big can you go with a 07K?

PostPosted: Fri Mar 08, 2013 8:33 pm
by glibobbo21
def .5. 1mm is getting sketchy.

Re: How big can you go with a 07K?

PostPosted: Fri Mar 08, 2013 9:45 pm
by Hank
These are still short deck 220mm blocks, so 2.5L is probably as big as it gets. As others have said, 83mm is as big as I would want to go.

Re: How big can you go with a 07K?

PostPosted: Fri Mar 08, 2013 10:18 pm
by paracaidista2.7t
So, about 2540cc. I doubt that the extra 60cc or so would be worth the compromise, IMHO.

Re: How big can you go with a 07K?

PostPosted: Sat Mar 09, 2013 12:02 am
by All_Euro
Eurospec says this about their 5 Cylinder Billet Crankshafts, "Fits all inline 5 Cyl Audi and VW Petrol engines."

http://www.eurospecsport.com/products/c ... shafts.htm

True in this case?

Re: How big can you go with a 07K?

PostPosted: Sat Mar 09, 2013 12:40 am
by Hank
No, the old five cranks would not work.