Small block cooling
04-17-2017, 08:32 PM
#1
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Thread Starter
Small block cooling
I'm trying to decide if I spend the money on a closed cooling system or keep open. I have a Domzi Classic 18 and want to be able to run up to an hour at 5000-6000 rpm on a SBC (special build). Is the most efficient/effective cooling for oil etc best with an open system? Thank you
04-17-2017, 09:34 PM
#2
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iTrader: (1)
If you boat in fresh water, I'd use the trillion gallon water supply at your disposal. ie: open system.
10-20-2017, 06:03 PM
#3
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I've got a built 383 stroker with a closed loop system, manifolds also closed loop. In the 100+ degree heat and 80+ degree water temps it runs hotter than I'd like. I only do fresh water so I've actually thought about removing the system and going open system. Hope that helps.
10-20-2017, 06:47 PM
#4
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I've got a built 383 stroker with a closed loop system, manifolds also closed loop. In the 100+ degree heat and 80+ degree water temps it runs hotter than I'd like. I only do fresh water so I've actually thought about removing the system and going open system. Hope that helps.
10-23-2017, 10:48 AM
#5
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That's a cheap and easy solution, thanks underpsi68. I bet that would work just fine. I'll add that to my winter upgrades list.
10-23-2017, 06:45 PM
#7
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Thread Starter
Donzi cooling
Ultimately, I landed where you did which is an open cooling system. I did make some rough calculations and could not see any benefit to not leveraging the massive capacitance of an inland lake.
Regarding the Donzi, I will attach a link. My bad. The boat started out yellow... repaired the hull, applied new gel coat and striping, replace stringers and transom, built a splayed 388 engine and replaced Volvo outdrive with a MerCruiser bravo outdrive
The restomod is now complete and have had several thermal runs where I was able to maintain 65 mph on Lake Huron for almost an hour. I think that’s good enough for what I was I was after.
http://s750.photobucket.com/user/dav...=recent&page=1
Regarding the Donzi, I will attach a link. My bad. The boat started out yellow... repaired the hull, applied new gel coat and striping, replace stringers and transom, built a splayed 388 engine and replaced Volvo outdrive with a MerCruiser bravo outdrive
The restomod is now complete and have had several thermal runs where I was able to maintain 65 mph on Lake Huron for almost an hour. I think that’s good enough for what I was I was after.
http://s750.photobucket.com/user/dav...=recent&page=1
Last edited by sandslot; 10-23-2017 at 07:15 PM. Reason: URL broken
