how much water pressure are you running?
09-15-2005, 11:33 AM
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how much water pressure are you running?
pls let me knopw how much water perss you are running at idle speed , a good cruise, and wfo. thx, ratman
09-15-2005, 12:15 PM
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Re: how much water pressure are you running?
I'm running twin 500 HP Carbed. The water pressure shows 0 when idle, 10-12 cruising, and about 15 with wot. 32 fountain. Is this normal?
Water temp stays low.
Water temp stays low.
09-15-2005, 12:19 PM
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Re: how much water pressure are you running?
Idle-2psi
3500-15psi
WFO-25psi
Using a crossover on a Merlin block, Merlin head 540. Twin engine 29 Fountain, no steps.
3500-15psi
WFO-25psi
Using a crossover on a Merlin block, Merlin head 540. Twin engine 29 Fountain, no steps.
09-15-2005, 12:20 PM
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Re: how much water pressure are you running?
Originally Posted by 32Fever97
I'm running twin 500 HP Carbed. The water pressure shows 0 when idle, 10-12 cruising, and about 15 with wot. 32 fountain. Is this normal?
Water temp stays low.
Water temp stays low.
09-15-2005, 12:28 PM
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Re: how much water pressure are you running?
baja36, do you think I should worry about such low readings? I just had both impellers / seapumps replaced. Boat has ran perfect since I bought it about 3 months ago.
09-15-2005, 12:33 PM
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Re: how much water pressure are you running?
idle less than 5
cruise 14-18
WOT 22
I have a similar setup to you, crossover, no t-stat, raw water pump, and a through hull water p/u. I grinded the through hull p/u down until the water pressure dropped to 15ibs cruise. I also added a pressure relief valve off my sea strainer that dumps water over board at 22psi. Water temp stays at 130* unless I clog the sea strainer. Works like a charm.
cruise 14-18
WOT 22
I have a similar setup to you, crossover, no t-stat, raw water pump, and a through hull water p/u. I grinded the through hull p/u down until the water pressure dropped to 15ibs cruise. I also added a pressure relief valve off my sea strainer that dumps water over board at 22psi. Water temp stays at 130* unless I clog the sea strainer. Works like a charm.
09-15-2005, 01:18 PM
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Re: how much water pressure are you running?
Originally Posted by 32Fever97
baja36, do you think I should worry about such low readings? I just had both impellers / seapumps replaced. Boat has ran perfect since I bought it about 3 months ago.
Your h2o pressure is fine. Mine is almost the same and has been for 220 hrs without any problems. It did drop a couple lbs when I changed from Gils to CMI exhaust.
