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Author Topic:   water pump
dtd_93
Member
posted April 05, 2004 04:12 PM
does an aftermarket water pump really make that big of a differnce over a stock one?? was think of gettin one.. i am not runnin that hot but i wanna make sure that i am not gonna get any hotter.....


joetaylor
Member
posted April 05, 2004 04:15 PM
wes it does get agood one and paint it if rules don't allow tech don't really look

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U LIFT U LOOSE


Dixon
Member
posted April 05, 2004 04:42 PM
In one of the most recent issues of Circle Track, there was an article about a new water pump design for the Dodge CUP engines.

Remember when Ryan Newman seemed to keep winning on fuel mileage? Well, apparently is was mostly attributed to the water pump. They said it was worth over 5 H.P. compared to anything else available, and at the CUP level, a 5 H.P. gain is pretty significant.

I can't remember the article right now but I'll find out. I don't remember the company that makes the water pump but they are supposed to have new designs for Chevy and Ford available.

So to answer your question, I'd say they are worth every penny.

Scoot
Member
posted April 05, 2004 08:20 PM
Page 103 of April 2004, water pump was made by EMP Stewart Components. Its a really good article.

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Scoot
Smith Racing Team
870-365-5989


dtd_93
Member
posted April 05, 2004 09:34 PM
ok so they help hp wise but how about for cooling? do they cool the motor any better?


outlawstock17
Member
posted April 06, 2004 05:57 AM
ryan newman was getting better mileage mainly because they were using a smaller carburetor.......let me guess.....EMP stewart components are an advertiser in circle track....lol...


Ego Racing
Member
posted April 06, 2004 08:29 AM
Outlaw is right about Newman. The biggest thing about stock waterpumps is the are not made to turn as many RPM's as a race motor.
An aftermarket pump uses better parts and will flow more water tham a stock pump and the impeller is designed not to cavitate the water as easy.
If you are not allowed to use an aftermarket pump there are several companies that make a disk you can pop rivet to the stock impeller to close the pump face and make it move more water. These work good as an alternative.
You didnt say if you are running a T-stat or a restrictor but if it is a restrictor you may try one with a smaller hole to allow the water to cool in the radiator longer and seap more heat from the block.


dtd_93
Member
posted April 06, 2004 04:55 PM
160 t-stat with 2 3/8 holes drilled on either side of it..

had to put t-stat in it cause it;s wouldn;t build up any heat with out it

[This message has been edited by dtd_93 (edited April 06, 2004).]

Dixon
Member
posted April 07, 2004 10:31 AM
Outlaw,

I bet you're right about EMP advertising. I've seen them do that before with a tech article about Enduratech valve springs (although I think they're pretty good).

However, I am interested to try the EMP pump, and will probably put it on the next engine I build. Call me a sucker for advertising!! lol

outlawstock17
Member
posted April 07, 2004 01:46 PM
dixon, i don't have any experience with stewart water pumps as i use a ford racing pump, but i'm sure they're a quality piece...

it's just irritating when those pencil pushin' magazine nerds "spin" information to peddle race parts...

dtd_93
Member
posted April 07, 2004 06:45 PM
well i am gonna try a stwert stage 1


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