Author Topic: boring (Read 3905 times)

scott kunz · « **Reply #50 on:** August 16, 2015, 04:12:28 am »

added holes to help lube the bearings

scott kunz · « **Reply #51 on:** August 16, 2015, 04:54:54 am »

385 crank had a bad crank pin, bearing, rod
rod and bearing from a Brocken 066 crank
crank pin from a 365 crank that was removed from the case with a hammer

using a 288 piston, did a little clearance work

scott kunz · « **Reply #52 on:** August 16, 2015, 06:09:39 am »

stock base gasket gave me .010 squish
ex 176
in 161

cut the base .040, no gasket
ex 168
in 170
bd 22
tr 124

I think i'm going to raise the in floor with epoxy, put the thing together and see how it runs, check comp and go from there

Cut4fun . · « **Reply #53 on:** August 16, 2015, 09:54:53 am »

Very neat project. Be interesting to see how she does in the cut.

Thanks for sharing pics etc.

adam32 · « **Reply #54 on:** August 16, 2015, 01:08:09 pm »

How are you going to balance the crank?

mdavlee . · « **Reply #55 on:** August 16, 2015, 06:13:22 pm »

I bet it would scream with 176° of exhaust. The 168 sounds more better though.

3000 FPS · « **Reply #56 on:** August 16, 2015, 11:11:53 pm »

Yes I found it all very interesting thanks for taking the time to show what your doing.

scott kunz · « **Reply #57 on:** August 17, 2015, 12:56:07 am »

true the crank, yes. balance the crank, no need too. it's a experiment, race saw. otherwise it would be done on the flywheel.

aclarke · « **Reply #58 on:** August 17, 2015, 10:09:18 am »

Full circle crank like Scott's will have a lower rpm "balance factor" as the effective opposing weight is reduced with the addition of the material opposite the original bell.