Electric Water Pump HP gain?
Heel & Toe
Joined: Sep 2006
Posts: 15
Likes: 0
From: SoCal SoCal
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
I was recently talking to Slowhawk about the elec pumps, they are worth the 4-8rwhp on the dyno
they really have an advantage when drag racing, in the staging lanes, flip the switch, the motor is cooled within minutes
they really have an advantage when drag racing, in the staging lanes, flip the switch, the motor is cooled within minutes
Le Mans Master
Joined: Jan 2000
Posts: 6,725
Likes: 0
From: South Bend IN
Melting Slicks
Joined: Jul 2004
Posts: 2,331
Likes: 2
From: Akron Ohio
That is where they shine, but too bad they don't flow well enough to handle big HP or if you want to road race later on.
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Pro
Joined: Dec 2004
Posts: 563
Likes: 1
From: Mission Viejo CA
I wouldn't swap to an electric, I hear from several people that have used them and they say they are good for Drag Racing but other than that they either can't keep up or fail in regular street applications. Stay with what you have. You can find the HP somewhere else.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
heard the same thing.
Burning Brakes
Joined: Aug 2006
Posts: 789
Likes: 38
From: Shreveport LA
The biggest deal with them is to take the belt completly off when you make a run which will net you an additional 14rwhp verified on the dyno. It is a way to just wring out all the power on a 1/4 track and have the oppertunity of cooling the car a lot easier and faster.
Burning Brakes
Joined: Aug 2006
Posts: 789
Likes: 38
From: Shreveport LA
If you don't drag race I wouldn't even consider one though.
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Most likely gains would be 5-6 HP....
No problems with an EWP on the street at all....my car actually ran cooler in traffic because the pump is always going 100% even when idling in traffic (versus a mechanical which is now turning very slow).
The higher the RPM you plan on turning the engine the greater the gains.
The only type of racing/driving I wouldn't consider/advise getting one is road racing where the RPM's are always high and alot of heat is being generated. At those typical engine speeds (3500-redline) the mechanical pumps move more coolant and do a better job.
They are also excellent for dyno testing because you wont get heat soak creeping into the picture....just keep the big fans on in front of the radiator, turn on the EWP, and watch the coolant temps drop. You can always test at the same coolant temp (better for evaluating small changes) and do so in a third of the time or less.
In short....GO FOR IT
Happy Holidays everyone...
Tony
No problems with an EWP on the street at all....my car actually ran cooler in traffic because the pump is always going 100% even when idling in traffic (versus a mechanical which is now turning very slow).
The higher the RPM you plan on turning the engine the greater the gains.
The only type of racing/driving I wouldn't consider/advise getting one is road racing where the RPM's are always high and alot of heat is being generated. At those typical engine speeds (3500-redline) the mechanical pumps move more coolant and do a better job.
They are also excellent for dyno testing because you wont get heat soak creeping into the picture....just keep the big fans on in front of the radiator, turn on the EWP, and watch the coolant temps drop. You can always test at the same coolant temp (better for evaluating small changes) and do so in a third of the time or less.
In short....GO FOR IT
Happy Holidays everyone...
Tony
