[Healeys] oil choices

[Chris Dimmock]

Ha!!!
I'll quote you on that, because you live in the Netherlands.
You missed my reference to "a hot climate".
LMFAO.
Yep. On a cold winters day, somewhere in Australia, you're probably
right......
;-)
Chris

Sent from my iPhone

On 01/07/2012, at 1:53 AM, Oudesluys <coudesluijs at chello.nl> wrote:

> Chris,
> It has nothing to do with the type of engine, modern or old, cast iron or
alloy, more with resistance in the internal oil ways of the engine. Some
engines have long and/or precious small diameter oil ways. These kind of
engines are at risk. It is not all pressure you need. You also want flow.
> Kees Oudesluijs
> NL
>
> Op 29-6-2012 14:14, Chris Dimmock schreef:
>> Kees, with all due respect, the theory is correct, if you are talking about
a modern twin cam, aluminium, multivalve engine.
>> But It isn't if you are talking about 500 plus pounds of cast iron heatsink
with a single flat tappet cam in the block. In a hot climate,
>> I've been running HPR40 or HPR50 - depending on the season, and the cars
use - for 12 years, with no problems to date. Head hasn't been off, just
plugs, points, timing, tappets. Usual maintenance stuff.
>> Oil pressure today was 55- 60 lbs at cold idle. 60 lbs at 4,500rpm. 40 lbs
at hot idle. That's today - I just drove to Wakefield Park from Sydney - with
HPR40.
>> My engine was rebuilt in 1998.
http://www.myaustinhealey.com/dyno_sheet.html