[DeTomaso] DeTomaso Digest, Vol 46, Issue 9- Oil Cooler

Tomas Gunnarsson guson at home.se
Sat May 10 16:14:07 EDT 2008


It would be interesting to know if Bob's cooler is mounted in the return line from the radiator or the hot line going to the radiator.

Tomas

----- Original Message ----- 
From: "John Taphorn" <jtaphorn at kingwoodcable.com>
To: "Julian Kift" <julian_kift at hotmail.com>; <thomas.tornblom at hax.se>; <rcbsons1 at aol.com>; <detomaso at realbig.com>
Sent: Saturday, May 10, 2008 9:35 PM
Subject: Re: [DeTomaso] DeTomaso Digest, Vol 46, Issue 9- Oil Cooler


> Julian
> 
> I had the opportunity to be a small part of a conversation with Bob in the 
> Hospitality Suite at Vegas regarding his high oil temp dilemma.
> 
> My positive experience with the Laminova cooler is based on keeping revs at 
> or under 6000RPM.  Bob commented that at those relatively lazy RPMs he has 
> no oil temp problems at all with the Water to oil style coolers.
> 
> However, the situation changes when he uses his 6800 RPM shift point.  It is 
> at this level the water to oil cooler alone has been unable to keep his high 
> temps at bay.
> 
> JT
> ----- Original Message ----- 
> From: "Julian Kift" <julian_kift at hotmail.com>
> To: <thomas.tornblom at hax.se>; <rcbsons1 at aol.com>; <detomaso at realbig.com>
> Sent: Saturday, May 10, 2008 10:21 AM
> Subject: Re: [DeTomaso] DeTomaso Digest, Vol 46, Issue 9- Oil Cooler
> 
> 
>>
>> Bob,
>>
>> It sounds like you've already experimented a lot, but most other people 
>> have had best success with the water-oil (laminova style) coolers, so the 
>> question is what is the underlying problem here?
>>
>> What is your water temperature? My oil temp stays at a pretty constant 35 
>> degrees above water temperature and I've heard similar deltas from others. 
>> a) Are you sure the readout you get from your oil temp gauge is a true 
>> temp? (I've seen mismatched senders and gauges i.e. a 280 degree sender 
>> rigged to 300 degree gauge, so full scale deflection when oil reaches 280 
>> tells you 300 on the gauge!) b) is your oil temp sender in the oil pan or 
>> in the block? I've heard of 40 degree higher temps if its measuring in the 
>> block.
>>
>> I'd be tempted to do a little more up front investigation and physically 
>> measure oil temp prior to spending more $$.
>>
>> Tomas: Now that is a bright idea and as you say can be done using off the 
>> shelf dry sump parts.
>>
>> Julian
>>
>>>> After my recent run at the Vegas Track event>> I have decided that the 
>>>> only way I can cool my>> oil down below 300 running at 6800 on most of>> 
>>>> the corners is to put a air to oil cooler up front >> as Charlie Puckett 
>>>> told me to do several years ago>> He and I have tried other locations, 
>>>> oil to water, fans>> etc... I give up so up front we go or I am going 
>>>> to>> eventually roast my motor.>> >> I think 5/8 hard lines under the 
>>>> car but as most>> have told me I will need to pump that far... I will>> 
>>>> leave the stat in the filter adapter and the only>> time I really need 
>>>> to use the cooler is when we>> track the car... put ithe pump on a 
>>>> switch would be best>> (electric).... now who... what size.... 
>>>> pressure???>> any thoughts???? maybe off the new vette, ford gt???>> >> 
>>>> Bob Benson
>>>Tomas Gunnarsson had what I think is a great idea. >Instead of running the 
>>>oil at full pressure to the front and back, >install a separate low 
>>>pressure oil pump and just circulate the oil >from the oilpan to the 
>>>cooler and back into the pan. >You could drive the oilpump from one of the 
>>>driveshaft flanges. I >guess a single stage drysump pump and a gilmer belt 
>>>drive would >work. Thomas
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