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Dave in MN · 03-17-2011, 04:26 PM

Dave,
Yes..wide open question. (Did you intend the pun?)

These are my practices and many will not agree.
Stock: 45-52 Max 55 (in my '28 pickup) with stock engine with high speed rear end assuming stock gravity oiling (This would equate to about 52mph with a standard ring and pinion)
With inserts: I do not have an inserted non-counterweighted but I would suggest the same as babbitt assuming gravity oiling for the inserts
Babbitt and Balanced crank: Same as below
Inserts with counterweighted and balanced crank: 60 (in my '29 Phaeton) with standard rear end and 65 with overdrive assuming again standard gravity oiling.

One more you did not mention: Pressure oil to mains and rods...more pressure...more rpms...

Brakes: The best you can build if you are pushing modern highway speeds!

Speed is fun once in awhile but 35 to 45 is much more pleasant!

Just my opinions....others will have their own.

Good Day!
Dave in MN

03-17-2011, 04:26 PM	#2
Dave in MN Senior Member Join Date: May 2010 Location: Jordan, MN Posts: 1,411	Re: Standard engine "Redline"? Dave, Yes..wide open question. (Did you intend the pun?) These are my practices and many will not agree. Stock: 45-52 Max 55 (in my '28 pickup) with stock engine with high speed rear end assuming stock gravity oiling (This would equate to about 52mph with a standard ring and pinion) With inserts: I do not have an inserted non-counterweighted but I would suggest the same as babbitt assuming gravity oiling for the inserts Babbitt and Balanced crank: Same as below Inserts with counterweighted and balanced crank: 60 (in my '29 Phaeton) with standard rear end and 65 with overdrive assuming again standard gravity oiling. One more you did not mention: Pressure oil to mains and rods...more pressure...more rpms... Brakes: The best you can build if you are pushing modern highway speeds! Speed is fun once in awhile but 35 to 45 is much more pleasant! Just my opinions....others will have their own. Good Day! Dave in MN Last edited by Dave in MN; 03-21-2011 at 03:28 PM.