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Oil cooler size?

https://cimg6.ibsrv.net/gimg/www.off...795a248fa1.jpg
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I got these oil coolers with the motors i purchased. Are they going to be adequate, if not what size should i look at. Engines are 572 ci.675 hp dyno no accesorries, closed cooling. Gil 10 qt oil pan.
they are revolution marine. Part # 1022007.
3"x 13"
thanks appreciate any info

Typo 13". That's plenty of cooler. Just make sure and run oil stat.

the last five inches is another cooler......... ps cooler ^^^^

What is the typical water temp you run in? Without a thermostat it may take a while to warm up the oil. I run a smaller cooler with about the same HP, but I run in Northern Lake Huron where water temps don't get above 78 and can be as cold as 34. My oil does get to 280-290 when I'm running hard. When I'm idling down the river my oil drops to 130-150 when the water is warm. I run Amsoil 15w-50 racing oil which handles the heat real well so no issues so far.

In texas water temps 55 to 90

Quote:

Originally Posted by ThisIsLivin (Post 4660960)

280 is way to hot, too much of that will kill the engine stone dead..J

Quote:

Originally Posted by ecuchips (Post 4661582)

280 is way to hot, too much of that will kill the engine stone dead..J

I’ve talked to the techs at Amsoil and they said for the racing oil I’m running it’s no problem. They told me I’m good even at 350. I’ve scoped out the engine and no varnish buildup from running the oil to hot. Engine still looks brand new inside even after 100 hrs since the rebuild. Oil comes out at the end of the season clean as a whistle. As a matter of fact I use the old oil as bar oil in my chainsaw. That’s a story for another forum.

Quote:

Originally Posted by chris302 (Post 4660896)

i run 3 x 20 hardin oil coolers with a thermostat. about the same hp as you, oil never gets over 210. there is no way id run a motor with 290 oil temps.

Quote:

Originally Posted by ThisIsLivin (Post 4661969)

I think 280 is way too high, Why even take the risk, You know the jet-boat guys run way down like 150f and get better reliability. I wouldn't run a degree over 210 ever...My engine guy made engines for a racing CAT some time ago, and they had engine failures with oil at 280, the guys that rigged the boat had the oil and water running the same way through the cooler, as soon the they reversed the water direction in the cooler so its moving left to right and the oil moving right to left, the problem was solved...

I reversed my cooler lines to see what effect it would have and there was no change. Personal experience only so may be different in your boat. Oil temps are 230-235 wide open at the pan with a cooler your size on a closed cooled 540. 200-210 at fast cruise but I boat in Florida and the water is piss hot here.