Electric water pump
Burning Brakes
Joined: Jun 2000
Posts: 913
Likes: 17
From: Chatsworth, Ga.
Water pump
Why Meziere over CSI? I am at a place where I can either go electric or new stock pump. Is it that Meziere is a better all around product? More reliable? Meziere does cost more then CSI.
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Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Mez HD in my DD for a few years now. Mez rates it for 10,000 hours thats a lot of driving time. Another bonus is MEZ HD flows more water than regular mez or the CSI LT1 pumps.
MIke
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
I'd like to get these electric pumps to have their motor speed responsive to engine rpm instead of just running constantly at same rpm. I'm thinking of a frequency to voltage convertor that uses a signal from splicing into the opti. I've got a circuit schematic and can build it but maybe someone knows if a vendor supplies such a fan controller ?
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
I'd like to get these electric pumps to have their motor speed responsive to engine rpm instead of just running constantly at same rpm. I'm thinking of a frequency to voltage convertor that uses a signal from splicing into the opti. I've got a circuit schematic and can build it but maybe someone knows if a vendor supplies such a fan controller ?
Lowering the load on the alternator probably wont help add any power either. Maybe you will get a little longer life out of the pump but 10,000 hrs is a long time.
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
Would there really be any benefit though? It's not going to spin faster than the electric motor can handle. It's at max all the time now. If it runs at a lower rpm at idle and lower speed then you are reducing the cooling benefit of the pump in traffic or between runs.
Lowering the load on the alternator probably wont help add any power either. Maybe you will get a little longer life out of the pump but 10,000 hrs is a long time.
Lowering the load on the alternator probably wont help add any power either. Maybe you will get a little longer life out of the pump but 10,000 hrs is a long time.
Burning Brakes
Joined: Apr 2006
Posts: 1,218
Likes: 7
From: Burleson Texas
I would think that reducing its power consumption would reduce its capability. Maybe it was designed to run at one speed for simplicity or maybe it was due to the design of the pump itself. I foresee lots of 'what ifs'
What if the pump is horribly inefficient at any other rpm than what it runs at now?
What if your pwm (pulse width modulation) circuit fails and sticks you with less flow?
Are you really worried about 8 amps?
(in my 86 diesel suburban, modified using the cs144 alternator) My stereo system draws almost 47 amps at full volume and I have never had an issue with the alt, dimming lights or any ill effects. I dont think you will have any issue whatso ever, and probably wouldn't even notice unless your alt or batteries are in bad shape.
What if the pump is horribly inefficient at any other rpm than what it runs at now?
What if your pwm (pulse width modulation) circuit fails and sticks you with less flow?
Are you really worried about 8 amps?
(in my 86 diesel suburban, modified using the cs144 alternator) My stereo system draws almost 47 amps at full volume and I have never had an issue with the alt, dimming lights or any ill effects. I dont think you will have any issue whatso ever, and probably wouldn't even notice unless your alt or batteries are in bad shape.
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
I would think that reducing its power consumption would reduce its capability. Maybe it was designed to run at one speed for simplicity or maybe it was due to the design of the pump itself. I foresee lots of 'what ifs'
What if the pump is horribly inefficient at any other rpm than what it runs at now?
What if your pwm (pulse width modulation) circuit fails and sticks you with less flow?
Are you really worried about 8 amps?
(in my 86 diesel suburban, modified using the cs144 alternator) My stereo system draws almost 47 amps at full volume and I have never had an issue with the alt, dimming lights or any ill effects. I dont think you will have any issue whatso ever, and probably wouldn't even notice unless your alt or batteries are in bad shape.
What if the pump is horribly inefficient at any other rpm than what it runs at now?
What if your pwm (pulse width modulation) circuit fails and sticks you with less flow?
Are you really worried about 8 amps?
(in my 86 diesel suburban, modified using the cs144 alternator) My stereo system draws almost 47 amps at full volume and I have never had an issue with the alt, dimming lights or any ill effects. I dont think you will have any issue whatso ever, and probably wouldn't even notice unless your alt or batteries are in bad shape.
Racer
Joined: Oct 2006
Posts: 403
Likes: 1
From: Merritt Island Florida
It would seem to me that you would want the water to move through the system as fast as the pump can move it. Let the variation in cooling come from the fans.
I have my fans kick on at 160 for one fan and 170 for the other, to get a jump on the heat buildup. Yesterday, it was in the 90s here in Florida and with some serious humidity. With the Hypertech 160 mod and with the A/C on high, I never got over 185 water temp, although the oil was at 192. Before the hypertech mod, my car would get to 225+ and that is too hot in my opinion. It's my belief that heat accelerates decomposition of components in and around the engine.
There is a ton of controversy here about this mod. I believe the Mez HD augments this mod a lot, in my experience, to keep the car running cooler. Now, I can cruize around town in the great comfort of cold A/C and with the car not even coming close to overheating.
Billy
I have my fans kick on at 160 for one fan and 170 for the other, to get a jump on the heat buildup. Yesterday, it was in the 90s here in Florida and with some serious humidity. With the Hypertech 160 mod and with the A/C on high, I never got over 185 water temp, although the oil was at 192. Before the hypertech mod, my car would get to 225+ and that is too hot in my opinion. It's my belief that heat accelerates decomposition of components in and around the engine.
There is a ton of controversy here about this mod. I believe the Mez HD augments this mod a lot, in my experience, to keep the car running cooler. Now, I can cruize around town in the great comfort of cold A/C and with the car not even coming close to overheating.
Billy
Last edited by wilsonbh; May 17, 2009 at 04:33 AM.
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
It would seem to me that you would want the water to move through the system as fast as the pump can move it. Let the variation in cooling come from the fans.
I have my fans kick on at 160 for one fan and 170 for the other, to get a jump on the heat buildup. Yesterday, it was in the 90s here in Florida and with some serious humidity. With the Hypertech 160 mod and with the A/C on high, I never got over 185 water temp, although the oil was at 192. Before the hypertech mod, my car would get to 225+ and that is too hot in my opinion. It's my belief that heat accelerates decomposition of components in and around the engine.
There is a ton of controversy here about this mod. I believe the Mez HD augments this mod a lot, in my experience, to keep the car running cooler. Now, I can cruize around town in the great comfort of cold A/C and with the car not even coming close to overheating.
Billy
I have my fans kick on at 160 for one fan and 170 for the other, to get a jump on the heat buildup. Yesterday, it was in the 90s here in Florida and with some serious humidity. With the Hypertech 160 mod and with the A/C on high, I never got over 185 water temp, although the oil was at 192. Before the hypertech mod, my car would get to 225+ and that is too hot in my opinion. It's my belief that heat accelerates decomposition of components in and around the engine.
There is a ton of controversy here about this mod. I believe the Mez HD augments this mod a lot, in my experience, to keep the car running cooler. Now, I can cruize around town in the great comfort of cold A/C and with the car not even coming close to overheating.
Billy
Last edited by ChrisWhewell; May 17, 2009 at 09:30 AM.