<VV> Selecting an oil

TimogensTurbo at aol.com TimogensTurbo at aol.com
Mon May 29 11:47:25 EDT 2006


In a message dated 5/29/06 8:21:00 AM Pacific Daylight Time, tonyu at roava.net 
writes:


> Maybe this is why it can get away with less 
> than 40 lbs of oil pressure to stay together when that 426 race 
> engine needs almost 100...  
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Interesting also!  Might be why you had the problem!  

My experience...and method of most all in So Cal. in the 60-80's, was to run 
a high volume oil pump,  low pressure...15-25psi MAX!  This was accompanied by 
LOOSE  clearances.....brought about by having the crank Polished until the 
desired clearance was attained....cheap and easy on NEW factory engines.  We 
also always opened up the Rod's "side clearances"  which made for a real SPRAY  
inside the crankcase...but was always negated by a windage tray...  Ahh, the 
good old DaZe...all this could be accomplished for a $100  if you did the engine 
teardown / buildup...

Then 50 wt  worked fine!   But, Yes,  I ran Castrol 20-50  or Valvoline 20-50 
 in my daily drivers.....but Castrol was the choice for any high revving  
smaller engines.  All the Brit, Japanese  and of course V W  air cooleds seemed 
to thrive on it!

Matt


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