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

Re: how much water pressure are you running?
 

idle.........less than 5
cruise.....about 20
WOT......about 25

Carbed 540

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.

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.

Re: how much water pressure are you running?
 

IT IS IF NO WATER PUMP OR STAT.

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.

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.

Re: how much water pressure are you running?
 

b/4 or after I installed the water pressure relief valves...BZ

Re: how much water pressure are you running?
 

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.

Re: how much water pressure are you running?
 

I dont have water pressure gauges. is it something i should add?