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

[Julian Kift]

John,
 
Interesting, as the Laminova is supposed to be 3 times more efficient than an equivalent air-air cooler and virtually speed independent, but it now looks like that may only be valid up to a specific speed (air flow). I have the EDC-54 329 (largest dual core Laminova) which is quoted to be equivalent to a 25-30 row air to air cooler, so I'll be interested to follow how this works out as I was going to use it on my new 393C stroker motor, which was built to spin out to 7,850 rpm. I had toyed with the idea of locating it somewhere it was easy to duct some additoional air over it, from this it sounds like I definitely need to consider carefully. I just don't like the idea/risk of all that extra hosing up to the front of the car to carry oil, although I'm guessing with thhe necessary extra oil in the system that in itself will aid oil cooling.
 
>From what I understand the NASCAR units are a combination radiator having oil-coolant-air, so maybe the airflow aspect comes into it's own at elevated speed and rpm.
 
Julian
 
> From: jtaphorn at kingwoodcable.com> To: julian_kift at hotmail.com; thomas.tornblom at hax.se; rcbsons1 at aol.com; detomaso at realbig.com> Subject: Re: [DeTomaso] DeTomaso Digest, Vol 46, Issue 9- Oil Cooler> Date: Sat, 10 May 2008 14:35:11 -0500> > 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> > _________________________________________________________________> > With Windows Live for mobile, your contacts travel with you.> > http://www.windowslive.com/mobile/overview.html?ocid=TXT_TAGLM_WL_Refresh_mobile_052008> > _______________________________________________> >> > Detomaso Forum Managed by POCA> >> > Archive Search Engine Now Available at http://www.realbig.com/detomaso/> >> > DeTomaso mailing list> > DeTomaso at list.realbig.com> > http://list.realbig.com/mailman/listinfo/detomaso > > 
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