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Finished my Meziere electric water pump install
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<blockquote data-quote="Dingleweed" data-source="post: 3568653" data-attributes="member: 31218"><p>I haven't spent too much time over on corrat.net, but there are quite a few threads about this over on mach1registry.</p><p></p><p>It seems that on every board there is a little controversy about using electric water pumps. I'll summarize the <strong>arguments</strong> for everyone:</p><p></p><p>Pros:</p><p>1. reduces parasitic losses ==> more power to the wheels</p><p>2. engine temps are more stable, even with repeated 1/4 mile runs or high speed WOT runs</p><p>3. you can turn it on in the staging lanes between runs to cool your engine down while the motor is off</p><p>4. if you break or throw a belt, you could still drive home without killing your motor.</p><p></p><p>Cons:</p><p>1. You don't gain any power</p><p>2. Not reliable enough for daily use</p><p>3. Waste of money</p><p>4. If it malfunctions, you wouldn't know it and you'd kill your engine.</p><p></p><p>Those are the arguments for each side, but what about the <strong>facts</strong>? Here's what I found in doing my research before I bought it. (For a "fact" I look for personal experience by forum users and what they actually say themselves. I exclude second hand vague statements like "So-and-so got no gains", "I heard...", etc.)</p><p></p><p><strong>Power gains:</strong> Of the people that have dynoed just a water pump install over on mach1registry, Vic229, Chaucer, JDraper all gained 11 to 12 WHP <a href="http://www.mach1registry.org/forums/showthread.php?t=38133&highlight=electric+water+pump+dyno" target="_blank">in this thread</a>. There have been two people over there that dynoed and saw no gains or a loss: Jester and Shaken not Stir. Shaken not Stir saw no gains, but also added back rims and tires that wieghed 6lbs more each than the wheels and tires he had on the first time he dynoed. Jester also added the accufab TB and lost 7 WHP. But the consensus was that his baseline dyno was actually kind of high for the mods that he had.</p><p></p><p>Looking at those facts (more people saw gains around 11 to 12 WHP, than not) and the fact that any dyno can vary up to 5 to 10 WHP from day to day, if you actually gained no power to the wheels then the average gain should be zero with deviations equal on both sides. But the facts are that the average gain is closer to 7 to 8 WHP with all things considered.</p><p></p><p><strong>Reliability:</strong> The <em>only</em> issue I have read about was Vic229 <a href="http://www.mach1registry.org/forums/showthread.php?t=35609&highlight=electric+water+pump+rebuilt" target="_blank">in this thread</a> where after 38,700 miles the pulley bearings went out. Meziere rebuilt the whole thing and has since changed the design of the idler pulley and bearings.</p><p></p><p>As for "Con 3." (waste of money). That is just an opinion. Even if there were no gain, i would still be happy with it due to "pros 2 to 4". So it is definitely not a waste for me.</p><p></p><p>As for "Con 4." I would like to install a dummy warning buzzer that will go off if the engine temp rises above a certain set point.</p><p></p><p>Now for my experience, I can tell a very slight difference in the performance. It pulls just a little bit harder. I also like the temperature stability and the ability of turning the pump on in the staging lanes to cool down between runs. So, I am happy with the results :thumbsup:</p></blockquote><p></p>
[QUOTE="Dingleweed, post: 3568653, member: 31218"] I haven't spent too much time over on corrat.net, but there are quite a few threads about this over on mach1registry. It seems that on every board there is a little controversy about using electric water pumps. I'll summarize the [B]arguments[/B] for everyone: Pros: 1. reduces parasitic losses ==> more power to the wheels 2. engine temps are more stable, even with repeated 1/4 mile runs or high speed WOT runs 3. you can turn it on in the staging lanes between runs to cool your engine down while the motor is off 4. if you break or throw a belt, you could still drive home without killing your motor. Cons: 1. You don't gain any power 2. Not reliable enough for daily use 3. Waste of money 4. If it malfunctions, you wouldn't know it and you'd kill your engine. Those are the arguments for each side, but what about the [B]facts[/B]? Here's what I found in doing my research before I bought it. (For a "fact" I look for personal experience by forum users and what they actually say themselves. I exclude second hand vague statements like "So-and-so got no gains", "I heard...", etc.) [B]Power gains:[/B] Of the people that have dynoed just a water pump install over on mach1registry, Vic229, Chaucer, JDraper all gained 11 to 12 WHP [URL=http://www.mach1registry.org/forums/showthread.php?t=38133&highlight=electric+water+pump+dyno]in this thread[/URL]. There have been two people over there that dynoed and saw no gains or a loss: Jester and Shaken not Stir. Shaken not Stir saw no gains, but also added back rims and tires that wieghed 6lbs more each than the wheels and tires he had on the first time he dynoed. Jester also added the accufab TB and lost 7 WHP. But the consensus was that his baseline dyno was actually kind of high for the mods that he had. Looking at those facts (more people saw gains around 11 to 12 WHP, than not) and the fact that any dyno can vary up to 5 to 10 WHP from day to day, if you actually gained no power to the wheels then the average gain should be zero with deviations equal on both sides. But the facts are that the average gain is closer to 7 to 8 WHP with all things considered. [B]Reliability:[/B] The [I]only[/I] issue I have read about was Vic229 [URL=http://www.mach1registry.org/forums/showthread.php?t=35609&highlight=electric+water+pump+rebuilt]in this thread[/URL] where after 38,700 miles the pulley bearings went out. Meziere rebuilt the whole thing and has since changed the design of the idler pulley and bearings. As for "Con 3." (waste of money). That is just an opinion. Even if there were no gain, i would still be happy with it due to "pros 2 to 4". So it is definitely not a waste for me. As for "Con 4." I would like to install a dummy warning buzzer that will go off if the engine temp rises above a certain set point. Now for my experience, I can tell a very slight difference in the performance. It pulls just a little bit harder. I also like the temperature stability and the ability of turning the pump on in the staging lanes to cool down between runs. So, I am happy with the results :thumbsup: [/QUOTE]
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