340 Vs 360

273 said
Piston speed, Would you use a cast cranks for 10,000 rpm motor even a 8,000 rpm ?

Good morning! Sipping the first cup of coffee….

It’s not would I or not but can it be done.
The short answer is yes it can be done.
To answer your direct question to me, no I will not be using a cast crankshaft. Current cast cranks in house need machining while the forged ones are ready to go.

273 said
If your building above 1.3 lbs-ft per cid your doing something right, 1:15-1.29:1 is decent average guy above 1.2:1 should be proud.

Gotta agree there! Though the pride level …. Dangerous word pride.

273 said
Nope Justinp61

:thumbsup: