Re: [xj-s] Add'l Oil Cooler

["Kirbert" <palmk@mailer.gadcomm.net>]

> From:          "David Johnson" <davesjag@worldnet.att.net>
> 
> I installed a v6 in a lotus europa years ago...

Ooooh!  That sounds like a goer!  What kind of V6 were you 
shoehorning in, and how much did the car weigh when done?

> ...and needed to move the oil
> filter.  I bought one of the relocating kits from Whitney.  It worked
> perfectly.  Not so much as a leak.   I wasn't worried about cooling, just
> relocating.

I suspect they work fine, since I've never heard any bad reports.  
However, I was a little concerned about whether or not one could be 
had for the XJ-S.  I presume it must mate to the filter mount, and I 
think the XJ-S has a different thread than most.  Do you think this 
would pose a problem?

Also, I think it'd be ideal to leave the filter right where it is.  
Is that possible?  Just install the tap block and put the filter 
right back on over it?

>   They even have dual filters.

As in, a remote mount with two filters instead of one?  Series or 
parallel?

> I seem to remember reading somewhere about my motorcycle having to have an
> oil temp "thermostat"  which prevented "overcooled" oil?   For some reason I
> remember that it's "not good" to have the oil too cold?

Chad Bolles told me once that this was a serious problem on his 
Lamborghini, and that there were kits to install a standard cooling 
system thermostat in a housing to regulate the flow of oil to the oil 
cooler.  I wondered how well a standard thermostat held up immersed 
in hot oil, but I guess it shouldn't be a problem.

>   Maybe only problem for air cooled?

People who race air-cooled cars sometimes describe them as "oil 
cooled".  You have to have a LOT of oil cooling to keep them in check 
when racing, so I suppose it would be easy to overcool.

> Anyway we could use the existing cooler and plumb the remote filter through
> the cooler.  That's what you proposed isn't it?

Uhhhh, not necessarily.  When Jag went from bypass to full flow oil 
cooling, the cooler changed.  The only reasons I can think of are 
that the bypass cooler can't handle the pressure or it can't handle 
the flow, otherwise I'd have expected them to continue using the same 
cooler.  Either reason also causes concerns with a homemade full flow 
cooling scheme (which is what we're talking about, after all).  So, 
I'm kinda thinking of an ADDITIONAL cooler -- which are readily 
available.

 -- Kirbert      |     If anything is to be accomplished,
                 |     some rules must be broken.
                 |          - Palm's Postulate

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