Id think the more the pump flows the more stress it would put on the motor. Also your probably not cooling efficiently sence your coolent is just blasting through the radiator and not haveing time to cool down. That there is the reason I went with a smaller pump. If your sitting and idleing for a long period of time and the coolent isnt getting time to cool down in the rad its doesnt seem like its going to be as effective as a smaller pump. But someone please correct me if Im completely wrong.

Jeremy

 

According to Stewart Components you're wrong.

http://www.stewartcomponents.com/tec...ech_Tips_3.htm

 

anaik, Thanks for posting that. I guess I never really though about the coolent in the engine absorbing even more heat from staying in the engine longer. Like everyone always says you learn something new everyday.

Jeremy

 

Your wrong. Thanks for clearing that up for him

It does flow more, but it flows more for a reason the componets inside the pump are different from the smaller ones. It has a different motor in it, bigger, hence it has to work less That is why they are longer pumps which require you to clearance the fan shroud. IMO the larger electric motor would increase reliability. Then again I can't prove it, cause I have never done scientific testing with both--- I just assume it to be so.

 

My Summit pump has a black anodized body (just like the new Meziere and CSI units), but the front cover is black with the letters CVR on the center "nipple" section. The Summit instructions also have the word "Proflo" in the title. The Summit pump looks to be a CVR Proflo Billet Water Pump #6351. http://www.cvrproducts.com/

Can't find many sellers of this unit, but it retails for $170 to $210... defintely not a cheap piece. I picked up a brand new Summit labeled one for $100 even on ebay, and Summit has it for $138... not a bad deal.

All 3 pumps seem to have the same color power and ground wires wrapped in a black "shirkwrap" tube. The CSI and Summit pumps use the electrical connectors (2 spades in an "T" shape), while the Meziere uses a weather-proof ribbed plug style in some pictures, and the same 2-spade design as the others in others (look at Summit's pic of the Meziere).

My Summit pump has 8 curved-vanes on the impeller, just like the Meziere pump, but with a solid cylinder in the center... while the pics I've seen of the Meziere pumps show more machining to "cone" the center section more. (Summit has a good pic of this, but the vanes look identical). On the CVR website the pic of 6351 is named 6351v2.... so I'm thinking the original design actually had a cone and they decided to cut back on machining costs. Looking at CVR's Automotive Brocure (http://www.cvrproducts.com/CVR_AUTOMOTIVE.pdf) their original design has 8 curved vanes and one large cone in the middle (which is what I'd guess would be the best set up, but costly to machine).

I've considered "messaging" the summit pump center to a cone style, but it seems like a PITA. clamping the pump in a vise, hooking up a 12v source, and then dremmelling a bevel on the impeller may be an option though... but I don't want to ruin the pump motor by treating it like a laith.

I bought a new weather-proof, inline spade (ATC) style fuse holder to replace the cheesey Summit one, and a weather-proof 20 Amp relay from Painless wiring to finish my install. The Summit pic of the Meziere pump also uses the cheap in-line-twist fuse holder.

I have a sneaky good feeling that Meziere, CSI, and CVR (aka Summit) pumps all use the same electronics supplier. The only difference is probably packaging and impeller/main body design (as the shops probably all have their own CNC mills to punch those out). I'd wager its even possible to swap out the stator/windings in the 6 Amp units for the 8 Amp one Meziere calls the Heavy Duty model.

 

CVR Automotive Brochure