SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: dunehooker_riverbooker on August 24, 2015, 01:54:13 PM
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I have a 502 in my ultra, my machinist told me to run a thermostat on my oil cooler to regulate flow and I was wondering if I even need a cooler. How many of you guys are running coolers?
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I bought one and never put it on. Was having a oil pressure and temp problem and it ended up being too much oil in the pan and it was getting foamy. Pulled 3 quarts and my oil temp dropped to 230. Most guys say jet boats run too cool and a cooler is not necessary. If u do end up getting one I have a brand new eddie marine cooler u can have for 100$
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I have a tunnel rammed BBC with the Dooley BBC marine pan that holds 10 quarts, but I only put in 9 quarts in it. With that pan it gave me the option of running a mechanical Auto Meter gauge for oil temp. Under normal cruising at 3,000 RPM (no hot dogging) the oil temp will hang around 180* to 195*, if I stand on it hard making a pass, I see oil temp rise to 220* really fast, but it also will dissipate heat quickly too. I have run it hard making some high RPM passes goofing off or racing a few people for fun, I have seen oil temp as high as 240*, but it will drop to 100* or less within an hour sitting in a cove. A jet boat application with the engine always being under a load will put some heat into the oil, but unless you’re really driving the piss out of it or racing an endurance application you shouldn’t need an oil cooler. If in doubt, install an oil temp gauge and see what kind of temp your getting under normal operation, if you were to see anything over 250*, I would consider a cooler.
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I have a tunnel rammed BBC with the Dooley BBC marine pan that holds 10 quarts, but I only put in 9 quarts in it. With that pan it gave me the option of running a mechanical Auto Meter gauge for oil temp. Under normal cruising at 3,000 RPM (no hot dogging) the oil temp will hang around 180* to 195*, if I stand on it hard making a pass, I see oil temp rise to 220* really fast, but it also will dissipate heat quickly too. I have run it hard making some high RPM passes goofing off or racing a few people for fun, I have seen oil temp as high as 240*, but it will drop to 100* or less within an hour sitting in a cove. A jet boat application with the engine always being under a load will put some heat into the oil, but unless you’re really driving the piss out of it or racing an endurance application you shouldn’t need an oil cooler. If in doubt, install an oil temp gauge and see what kind of temp your getting under normal operation, if you were to see anything over 250*, I would consider a cooler.
. I agree. I also don't run a cooler there is a need for a cooler but most of us don't fit into that category. If you going to run circle boat races endurance race by all means run one. Sand bar hoping does not require one IMO.
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Okay. I have an 8 qt. Canton oil pan on it,also have a 12 qt. Canton laying around but it doesn't fit between the rails haha. I'm just going to take all the oil cooler shit off and run it with a filter on the block and see how it does. Had really low pressure last time I ran it but I'm sure that's because of the lines.
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We had to run an oil cooler to heat the oil up in the race boat. Sounds stupid, but we ran the the dump water through the cooler, the oil was almost always 200-230°F. Happy as a tornado in a trailer park.
Unless your running for miles and miles, your fine.