Get a engine to run at 8000 rpm?

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1

has anyone got a engine to run above 8000 rpm ?
Beau

2

I have a Ford DFV that runs up to 11,500rpm best engine to use is the V8 Flatplane

3

Yup, 12,000 is possible with a short stroke.

4

i was trying a v8 bore (4.7")/short stroke (~3.6")

5

That is the Bore and Stroke of a Ford DFV

Bore: 85.674 mm
Stroke: 64.8 mm

The Ford DFV I have runs a

Bore: 85.7 mm
Stroke: 64.8 mm

and that gets a good 12,000rpm if I let it rev up that high but I dont I rev limit it to 11,500rpm