Yeah the blacktop quads are closer to 50mm inside diameter. I forget exactly, I'll have to check one day.
Even the silvertop ones I thought were more like 45mm.
There were actually two slightly different versions of the silvertop. I think the earlier one advanced the cam at 4400.
But the one after advanced it at 2000rpm or less, and largly depended on throttle position (as I found with mine).
Sounds like a pretty wicked na engine your building up - good luck with it.
Thu, 04 August 2005 00:07
