Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
10-04-2005, 03:01 PM
#81
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
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10-04-2005, 03:03 PM
#82
Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
Originally Posted by Audiofn
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10-04-2005, 03:52 PM
#83
Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
All of this mombo jumbo makes me want to go buy a stock mercruiser unit.
I understand competition, but this thread has made me loose respect for both sides.
I understand competition, but this thread has made me loose respect for both sides.
10-04-2005, 04:21 PM
#84
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
Originally Posted by WETTE VETTE
Here is another question. Depending on the type of pick-up being used does the pump even need to "pump" over a certain boat speed? Water pressure in a "pitot" type pick-up will be close to 1 psi / mph so in this case does it even need to pump at speeds over say 80 MPH in all cases? My IMCO drive grabs so much water at speed the pump probably isn't even doing anything compared to the ram created by the boat motion. At low speeds and idle is another story because the ram isn't high enough to adequately feed the motor. Try revving your motor up in neutral and see how much pressure these pumps generate. It ain't much. I would be more interested in GPM's at low RPM's and of course durability compared to the stock stuff. 
Last edited by articfriends; 10-04-2005 at 04:23 PM.
10-04-2005, 08:40 PM
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
Originally Posted by WETTE VETTE
Here is another question. Depending on the type of pick-up being used does the pump even need to "pump" over a certain boat speed? Water pressure in a "pitot" type pick-up will be close to 1 psi / mph so in this case does it even need to pump at speeds over say 80 MPH in all cases? My IMCO drive grabs so much water at speed the pump probably isn't even doing anything compared to the ram created by the boat motion. At low speeds and idle is another story because the ram isn't high enough to adequately feed the motor. Try revving your motor up in neutral and see how much pressure these pumps generate. It ain't much. I would be more interested in GPM's at low RPM's and of course durability compared to the stock stuff.
Most high speed boats are dumping off water to reduce high pressure.
10-04-2005, 08:50 PM
#86
Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
Originally Posted by WETTE VETTE
Below that specified pressure the clutch would be engaged allowing the pump to be running. Once there is adequate ram pressure to overcome the spring the cylinder would retract dis engaging the clutch and the pump will no longer be turning.
Craig
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10-05-2005, 04:48 PM
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
Originally Posted by articfriends
How does sucking water thru the pickup in outdrive compare to a regular pickup in a bravo housing? I have wondered about this in the past,I am still using the factory pickup in the drive,does it create the kind of pressure (or actually the term should be net positive suction head )mentioned in post # 71? Smitty
I still use the drive pickup since it is the most effective method. Hull mounted pick ups suffer from air ingested caviation.Some of This air goes to the pump and engine. The water lower down is less disturbed . KPM makes wtaer pickups and I do not have one on my own boat since i cannot improve with what I already have.
Jules Morgan
10-05-2005, 06:28 PM
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
First,how much water pressure will "MLS" or "O" ring head gaskets handle before leaking?Second,how water pressure are the cup cars running?Third,how much water pressure is required to encapsulate bubbles in aerated water?Fourth,what is the recommended method of scavenging air before it reaches the engine block?Fifth,can CMI or Stelling headers handle the water volume produced by the bypass pump design?If not,what is the plumbing recommendation?
10-05-2005, 06:47 PM
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
How about having your debates on email, or a test agreed by both parties or this thread will have to be deleted, this is getting out of hand
10-06-2005, 04:26 PM
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Re: Sea Pumps KPM vs. Keith Eickert vs. Hardin Marine - You be the judge
undefined
ok think its time to set the record straight .....i have had dealings for 6 years with kpm suplying high spec billet one off parts for race cars and think that you all need to get a life as we brits stick together .... KPM parts are all made in the uk and aint cheep crap ive been to the factory and had dealings with jules his a straight up guy and if you got any problems hes more tha willing to help anybody
thejackel
ok think its time to set the record straight .....i have had dealings for 6 years with kpm suplying high spec billet one off parts for race cars and think that you all need to get a life as we brits stick together .... KPM parts are all made in the uk and aint cheep crap ive been to the factory and had dealings with jules his a straight up guy and if you got any problems hes more tha willing to help anybody
thejackel
