RE: Re: oil cooler/oil heat exchanger combo?

[Jonas Karlsson <jkarlsso@metabolex.com>]

Scott F. Williams wrote:
>Jonas Karlsson wrote:
>
>> But the question arises; If you are going to shut it off 
>whenever the car
>> gets hot, how is it helping you cool the oil during hard 
>driving?
>
>It won't. That's what the air to oil cooler is for.

OK, but on that note, I would say that the air to oil cooler will work 
just fine by itself. Removing the heat exchanger will also allow the oil 
to heat faster to get into optimal operating temp faster. But read on...


>> You might be able to rig this electronically if you used
>> identical temp sensors, and a solenoid for the manual control (see
>> below). just a thought.
>
>See below? There's nothing there and I'm really interested to see 
>how this could be done.

>> Or you could control the valve with a solenoid mechanism and 
electronic
>> signals from the water and oil temp senders.
>>
>Yes, Jonas. You're on a roll, here. However, I'm a dunce with 
>this sort of thing so you ain't finished yet!


Unfortunately, I have never worked directly using solenoids and the 
temperature sensors in our cars, so this is really just a brainstorm. 

I was thinking of using a solenoid to open and close the relocated/inline 
heater core valve. I *think* the solenoid varies position as the voltage 
is varied, or at least you can get ones that do. Then you rig up the 
temperature sender(s) to vary this voltage. 

You might be able to use just one sender and set a temp at which to 
trigger the whole thing, and it would probably work fine. 

However, I had the idea of using both the water and the oil temps and rig 
them (through some "box") so that whenever the water temp was lower than 
the oil temp, the solenoid would be open, and vice versa. 

IF i was doing this major effort myself I would first wire up oil and 
water temp gauges, so I could see exactly what the water and oil temp 
relationship is at various temps and driving styles. 

I have a meeting to go to so I gotta go, but I'll think some more about 
it, and we can try to explore this further. I'm excited about such an 
innovative system, and if I can help, I'm happy. 

Jonas
85 Scirocco




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