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Hej!

Lite konstig fråga kanske, men vad är rekommenderat max varvtal på en 2-bultad 428 -69?

Borrad .030
2282P kolvar
Ohio Crankshaft vevaxel
Summit 2802 kamaxel
Pontiac #13 toppar

Tack på förhand!

Engine RPM Limits
There are two engine rpm limits that are important to consider. These are the rpm levels for continuous safe cruising and the maximum rpm that the short block can safely handle. The specific maximum rpm is determined by:

where:
R = Rod strength
M = mass of reciprocating parts
S = Stroke
ILF = Inertial loading factor
F = Factor of safety
For a reciprocating mass consisting of 830 gm. for piston, pin, and rings plus the rod. small end weight as noted ( i.e.. 1252 gm. for 541000 rod), the following chart lists the maximum rpm limits for a factor of safety of 2.0 : 1.
Stock 541000
Rod Small End Wt. 422 gm.
Stroke Rpm
3.750 6116
4.000 5881
4.210 5700

Oj, blir lite uträkning...!

Ähh kanske 4500-4800 som maxvarv?