This is the Meziere I would use if I bought one myself. The 25Hrs of Thunderhill NASA SLC used one I believe.
Our line of cooling system products currently includes items such as: electric high flow water pumps, cooling system accessories, recovery tanks and radiators.
www.meziere.com
I should reiterate the points I was making above. Electric pumps have two very important advantages.
First, they can be run at a constant impeller speed that best suits the impeller design. This is a huge improvement over a mechanical pump run at the engine speed whose speed drops far below the optimal impeller speed at idle and slow cruise speeds and is spun far faster than the impeller is designed for causing cavitation at high redline engine speeds. So what do we do? We try and find a compromise pully ratio that works over the full rev range. This is very hard to do for a dual-use car (street and track).
Second, I cannot say it strongly enough. The pump impeller input location in relation to the coolant system height is very important. The standard location of a V8 in a front-engine application and its front-mounted mechanical water pump is a compromise at best. This configuration at least does not suffer from the extreme length of the cooling system in a mid-engined car and is designed for street driven cars and moderate engine rev ranges along with low average thermal loads.
When you add the elements of a low radiator and very long and low side pod tubing with several bends (3 or 4 nearly double the effective system tubing length and we are using that many on each side!) in them you begin to reach a point where everything is working against you.
Then if you place the pump a foot higher than necessary on the front of the engine you have just about made the perfect storm when it comes to a cooling system design. I would guess 80% of the coolant volume is below the pump inlet and the system length approaches 30-35 feet long!
That is completely wrong! The water needs to be above the pump!!!! The transit tubing from the pump to the radiator needs to as straight and short as possible, and the water pump needs to be run at the design speed of the impeller. AND you have to get the air out and keep it out!
No, don't replace the mechanical pump with an electric one in the standard front of the engine location. It really makes no sense.....................
Suffice to say every detail needs to be optimized.