Coorelation between oil temps and coolant temps in a typical SBC?

NewbVetteGuy

Well-Known Member
Does anyone have any insights into the typical range of coorelation between oil temps and coolant temps in a typical SBC?

I know that coolant temps tend to be highly coorelated to thermostat temp+ambient air temp+radiator efficency and oil temps are coorelated to load / hp being produced, but all the guidance on not running < a 180deg F thermostat to help ensure your oil temps get high enough to cook off any water, seems to indicate that the coolant and oil temps are very much coorelated.

I just haven't found any data to back that up that could clearly make a data-driven case that you really shouldn't be running anything lower than a 180F thermostat, because you're unlikely to get your oil up to 210F.

-I've been searching for it, but my search kung-fu has failed on this...


Adam
 
oil temps generally run 15F-25F higher than coolant temps
ideally oil temps should be in the 215F-235 f range,
coolant temps in the 190f-215F range as that oil temp range boils off most contaminants , acids & moisture in the oil
while were at this TRANS FLUID should not exceed 175F

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http://garage.grumpysperformance.co...sion-and-oil-cooler-increases-durability.176/

http://garage.grumpysperformance.co...n-cooler-info-and-derale-trans-cool-pans.662/

http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478

http://garage.grumpysperformance.co...y-in-building-a-good-engine.11682/#post-54682

http://garage.grumpysperformance.co...l-cooler-increases-durability.176/#post-12335
 
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Thanks @Grumpy that's exactly what I was looking for.


I've found similar information coorelating the temps differences between oil temperature going into the engine vs. the temp in the bearings and I've heard numbers that state that the oil in the bearings usually ends up between +40F and +75F warmer coming out of the bearings. (I'm assuming that's mostly dependent upon the load applied to the engine with the +75F temps being in a high hp engine highly loaded.)

Really interesting to think about how all the temps are coorelated.
No way I'd run less than a 180F thermostat any more and this almost makes me want to run a 190 thermostat...

I also don't think I'll ever buy another radiator with a built-in trans cooler, if I can avoid it. (Hard to find one without the trans cooler built in for a C3 Corvette radiator.)


Adam
 
yes a separate trans cooler that has a built in fan, and rated for at least a 24,000 lb vehicle has in my opinion always been and will continue to be a huge improvement to any car/truck in the engine and trans durability and it sure helps to have a separate oil cooler, the dual passage trans fluid/oil coolers generally just don't function very well, especially the coolers that use the 3/8" or an#6 fluid feed/return line sizes, the AN#8 coolant line sizes are in my opinion the minimum functional line size.

links and the sub links within, contain a wealth of related info

http://garage.grumpysperformance.co...sion-and-oil-cooler-increases-durability.176/


http://garage.grumpysperformance.co...n-cooler-info-and-derale-trans-cool-pans.662/




http://garage.grumpysperformance.co...n-cooler-info-and-derale-trans-cool-pans.662/

http://garage.grumpysperformance.co...ans-cooler-on-a-c4-corvette.10514/#post-44478

http://garage.grumpysperformance.co...y-in-building-a-good-engine.11682/#post-54682

http://garage.grumpysperformance.co...l-cooler-increases-durability.176/#post-12335
 
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