Ebay electric water pump
03-25-2010, 02:45 PM
#1
2nd Gear Member
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Join Date: Feb 2010
Location: Illinois
Posts: 364
Ebay electric water pump
I'm shopping around for an electric water pump for my 98 and was hoping I could get your thoughts one.
I found this one on ebay. How would it compare to higher dollar pumps? Will I have any fitment issues?
http://cgi.ebay.com/ebaymotors/Ford-...item3cab72688b
I found this one on ebay. How would it compare to higher dollar pumps? Will I have any fitment issues?
http://cgi.ebay.com/ebaymotors/Ford-...item3cab72688b
03-25-2010, 02:53 PM
#3
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I looked at the Meizer pumps, but they're like 4-6 hundred bucks. I'm hoping I can find something a lil cheaper.
03-25-2010, 05:10 PM
#4
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Join Date: Jul 2006
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na theyre expensive but they have to be reliable. edelbrock makes a nice mechanical pump for the 4.6
03-25-2010, 06:01 PM
#5
03-25-2010, 06:41 PM
#6
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03-25-2010, 07:09 PM
#7
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I am a firm believer in, " you get what you pay for", but I also know that the most expensive doesn't nessesarily mean better.
03-25-2010, 08:45 PM
#9
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Join Date: Dec 2006
Location: Saint Augustine, FL
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This link shows the results of running a built small block Chevy on an engine dyno with the overdrive pulleys (ODPs), UDPs, and an electric water pump.
Subtracting the ODP pulley HP from the electric pump numbers show that the water pump required 3 to 7HP between 3000 and 5800 RPM¹. This is of course the maximum gain to be realised. It's too bad they did not test the OEM pulleys.
The gain from the electric pump vs. the UDPs was only 1 to 4HP.
The +15HP claim may be true on some big block with a massive pump, but don't expect to see it on our engines...
----------------------------------------------
¹ - The chart on the website shows an 10HP difference at 6000 RPM, however the numbers (from 394HP to 406HP) indicate a 12HP change. I suspect there may be some number rounding issues involved.
Also, the HP requirement jump from 5.8k to 6.0k is too steep to be explained by a relatively small 200 RPM difference.
Subtracting the ODP pulley HP from the electric pump numbers show that the water pump required 3 to 7HP between 3000 and 5800 RPM¹. This is of course the maximum gain to be realised. It's too bad they did not test the OEM pulleys.
The gain from the electric pump vs. the UDPs was only 1 to 4HP.
The +15HP claim may be true on some big block with a massive pump, but don't expect to see it on our engines...
----------------------------------------------
¹ - The chart on the website shows an 10HP difference at 6000 RPM, however the numbers (from 394HP to 406HP) indicate a 12HP change. I suspect there may be some number rounding issues involved.
Also, the HP requirement jump from 5.8k to 6.0k is too steep to be explained by a relatively small 200 RPM difference.
03-25-2010, 10:31 PM
#10
2nd Gear Member
Thread Starter
Join Date: Feb 2010
Location: Illinois
Posts: 364
This link shows the results of running a built small block Chevy on an engine dyno with the overdrive pulleys (ODPs), UDPs, and an electric water pump.
Subtracting the ODP pulley HP from the electric pump numbers show that the water pump required 3 to 7HP between 3000 and 5800 RPM¹. This is of course the maximum gain to be realised. It's too bad they did not test the OEM pulleys.
The gain from the electric pump vs. the UDPs was only 1 to 4HP.
The +15HP claim may be true on some big block with a massive pump, but don't expect to see it on our engines...
----------------------------------------------
¹ - The chart on the website shows an 10HP difference at 6000 RPM, however the numbers (from 394HP to 406HP) indicate a 12HP change. I suspect there may be some number rounding issues involved.
Also, the HP requirement jump from 5.8k to 6.0k is too steep to be explained by a relatively small 200 RPM difference.
Subtracting the ODP pulley HP from the electric pump numbers show that the water pump required 3 to 7HP between 3000 and 5800 RPM¹. This is of course the maximum gain to be realised. It's too bad they did not test the OEM pulleys.
The gain from the electric pump vs. the UDPs was only 1 to 4HP.
The +15HP claim may be true on some big block with a massive pump, but don't expect to see it on our engines...
----------------------------------------------
¹ - The chart on the website shows an 10HP difference at 6000 RPM, however the numbers (from 394HP to 406HP) indicate a 12HP change. I suspect there may be some number rounding issues involved.
Also, the HP requirement jump from 5.8k to 6.0k is too steep to be explained by a relatively small 200 RPM difference.