With all due respect I think bearing width diameter and surface speed all
matter to clearance and oil..
Dave
----- Original Message -----
From: "Bryan Savage" <b.a.savage@wildblue.net>
To: "Skip Higginbotham" <saltrat@pahrump.com>
Cc: "LandSpeed List" <Land-speed@autox.team.net>
Sent: Monday, May 31, 2010 1:04 PM
Subject: Re: [Land-speed] Bearing clearance
> The closer you can get to 100% oil, the better your results will be.
> Excessive oil pressure just soaks up HP and heats the oil.
>
> Bryan
>
>
>
> Skip Higginbotham wrote:
>> More important than clearances is oil volume. If you run a dry sump
>> system, you're fine. But if you run a wet sump, be sure to have at least
>> 12 quarts of oil or one of the newer blocks that have priority oiling. I
>> have not so good experience...........
>> On the subject of clearance, with lower viscosity oil, reduce bearing
>> clearances. And piston skirt clearances. Depending on how light the oil
>> is, 2 to 3 thou on the rods and 3 to 4 thou on the mains. At least 50 psi
>> oil pressure and even better, 10 psi for each hundred HP. Doug Odom is a
>> good source of info on engine lower ends.
>>
>> It matters little the brand of engine....bearings are bearings.
>>
>> Good luck,
>> Skip
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