Haven't heard much about CSI or CSR brand pumps for a while. They were good. Did they go out of business?

 

You need to check the flow rate with the pump on an assembled engine. It'll be about 12-14% of the advertised rating.

Pump ratings are done in more of a "free flow" condition, not on an assembled engine with restrictor orifices in head gaskets, etc.

 

Good point. I had a 35 gallon rated generic brand one without cooling issues. Just figured the aerospace components one drawing only 4 amps was too good to be true. Dedenbear has a 3 1/2 amp one, but flow is lower. Figured here was where to ask. Many racers.

 

I have ran an aerospace components pump on my car for years and never had any issues.

 

Thanks for the input! That's what I'm looking for before buying.

 

I have had a meziere for many years. It has always worked very well. Even after sitting many times not being used.
Have always used it with an electric fan and a shroud.

 

Meziere is considered by many to be the premium pump for racing. Areospace products all have very good CNC machining, but the ones I have used, brake kits and vacuum pumps, did not live up to my expectations. I would use CSR if I could get them only because they were cheaper and did the job well. I am using Mezieri now and no issues.

 

I myself got four years use out of the proform one. It was used and I didn't know the age of it when I got the car. Even a low end one can last, but the low amp draw makes me interested in the aerospace comp one. I know meziere is the name for high flow ones, and considered the 42, or 55 gal ones. Anyone else use the Aerospace one?

 

I am using a meziere 55 on my 454 and love it. Dropped my temps 20 degrees.

 

Meziere here as well.

 

I have been running a 55 gpm Meziere for 14 years on a 496 and now on my 555 without a single problem. Cools great in a street/strip car!

Brent

 

My proform started leaking this yr at the block/motorplate, was using some o-ringed spacers so I tried gaskets and same issue ..... turns out the ends where a bit "pigeon toed" so to speak, so a small touch on surfacer trued it up and all good... Still in service

 

Previously I used the proform brand pump the car came with and it worked fine. (35 GPM, but no amp draw rating on summit).

From Proform's website:

The new Chevy big-block electric water pump features a durable 12-volt motor pumping up to 35+ gallons of water per minute. Each pump is made from durable but light-weight die-cast aluminum with epoxy powder coating for corrosion resistance. Comes with FREE billet aluminum inlet fitting, and mating weather-tight connector. Draws 6 amps.

http://www.proformparts.com/product..._B_ALUMINUM_ELECTRIC_WATER_PUMP_ALUMINUM_FITTING_INCLUDED_BLACK/category_id/289

 

Good info.
Thanks.

 

Drag race only, on E85, Just about any 35gpm pump is going to keep it cool at the track. If you have to drive it on the street you may want to go with the Meziere 55gpm(10amps).

Meziere pumps come with a 2 year warranty. Company has been in busisness in the same location for 30+ years.

https://www.summitracing.com/parts/mez-wp300s
https://www.summitracing.com/parts/mez-wp100s

 

any one know if the merize 42 gpm has inlets on both sides like the cheap ebay one? im using the 2nd inlet as a bypass for the thermostat tell the engine warms up i just dont think it flows enough under load car sits at 210 wile doing 2k rpms on the highway doing 65 let off the gas and at 1200 rpms it drops into the 190s quickly

 

They make a Dual port Chevy pump best to call them directly. or you can get the WP300 with the port on top. WP300SP for a black pump -08 ORB port. You can also have them drill a port on top on a WP100 but you might as well get the wp300,

 

I have a cheap pro comp 35 gpm on my 632 - not my first choice but it was the only last min option but its still holding strong a few years later on a 1000 hp street application

 

We've used a few of the Proform 35GPM units on our stuff. One of them is probably 8-9 years old. Never an issue on our street/strip setups on gas, and definitely not an issue after switching to E85.

 

I have not ran my car yet..still in build process. Its a 632 13:5.1 in a Nova. I was highly recommended the Meziere 55gph pump.

 

I ran a CSR 35GPM pump for awhile and had cooling issues, went to the 55 Mezerie and all my issues were gone!

 

Buy a Meziere and forget about it.

 

One thing that i dont think is a bad idea is to wire in a warning light, for sure a good idea if its a street car. Its on my list and they are like 30 bucks with the sender. I watch the gauges pretty close, but someday the water pump could give out and it wont take but a minute to overheat. That or if you forget to turn it or the fans on
I got mine on with the key, but the fans are on a switch.