Visit The Dirt Forum for More Information

Author Topic:   Water Pumps?
POrding
Member
posted November 30, 2003 08:21 AM
I wnated to ask what everyone recommends as far as water pump (aluminum or cast iron)? If aluminum what brand? Looking for inputs for a SB Chevy. Thanks for your time and suggestions.

Paul # 03

66jj
Member
posted November 30, 2003 09:05 AM
Deffinitely aluminum.


I would like to add to his question.

Is a Stewart water pump worth that much more than a 55.00 alum short pump??

I believe even the cheapies have a cast iron impellor rather than the stamped steel one?


blaney11
Member
posted November 30, 2003 12:41 PM
I run a plain ole stock sb chevy water pump,but my motor is on alochol too. I have a prolbem of getting heat into the motor. It runs around 180 degress, with a restrictor in the housing


rocket36
Member
posted November 30, 2003 01:28 PM
the stewart/weiand/edelbrock pumps all have a proper open vane type impellor which are far more effecient. They also feature larger shafts and bearings for durability.
whether they are worth the money is really up to the individual and the application.


joeltjen
Member
posted November 30, 2003 02:09 PM
i wouldn't run anything but a good pump. we run stewarts, dont know about the others but the plain cheapies don't do the job especially on gas. as far as on alcohol i'd rather cool the engine with water than with the fuel, much easier on guides and cylinder walls. john


zeroracing
Member
posted November 30, 2003 04:01 PM
My cousin, my uncle, and myself all run Corvette alum. water pumps. My uncle runs his on his 430 and 417. My cousin runs his on his 406 and I run mine on my 355.


socaldirtmod
Member
posted November 30, 2003 09:06 PM
i agree with zero... lots of low cost pumps out there... just make sure they have the oversized bearing, and a cast curved vane impeller, with 1:1 pulley you'll be fine?


sixwillwin
Member
posted November 30, 2003 10:14 PM
I switched to Stewart when a $60 pump came apart and sent the snout thru my $200 radiator, while leading the feature. I sold all my old used ones on Ebay and bought Stewarts, even the spare in the trailer is a Stewart. live and learn....


xhubby
Member
posted December 01, 2003 04:40 PM
The 1 to 1 pulleys are the way to go huh? We've been using a 25% reduction setup on gas, new rad.w/ shroud Stewart pump, & all different sizes of restricters,including no restricter & usually run around 230 degerees. Guess I better try the 1 to 1 pulleys. Thanks for the info.


66jj
Member
posted December 01, 2003 04:49 PM
x hubby 1-1 and distilled water. the water alone is on average 15-20 degrees lower.

I just bought a Adams from a used winston cup parts place, I put all the info in the parts classifieds on here, it was 100.00 and is all plumbed for hoses etc..

Jeff

mod4
Member
posted December 01, 2003 06:20 PM
I hear about "distilled water" lowering temps, whats the reasoning behind it ?


66jj
Member
posted December 01, 2003 06:40 PM
less impurities I guess, everyone I have told that has tried it has said minimum 15 degrees lower.



zeroracing
Member
posted December 01, 2003 06:55 PM
Its been tested a dozen documented times, that water wetter, 40 below etc. are good lube for your seals but offer no better heat dissipation.


irace74
Member
posted December 01, 2003 09:25 PM
Speaking engineeringese, there is no better heat transfer fluid then water (unless you wish to consider sodium or other truely exotic materials). Antifreeze and any other material only serves to lower the heat capacitance of the water therefore, you must push more water to get the same ammount of heat transfer. Throw the restrictors away, go online and do what Stewart tells you to do. The new problem that you will have is getting heat into the motor, not a bad problem to have.


ss#4
Member
posted December 02, 2003 10:51 AM
I had the same problem a "sixwillwin" with the snout coming off through the rad. Nothing a little tigging of the hub to the shaft didn't fix. There is also a huge difference in rads. When I replaced the brand new Griffin with a well used Afco, the temp dropped by 15 degrees. As far as "studies" of zero or water wetter. Save the cash and use Fabric softner. NO I am not drinking, my racing pals did not believe me either, but as sure as I am sitting here a Cup of downy or snuggle will lower the temp. I saw 10degs. and yes it smelled nice and fresh when the fan went through the radiator. just my 2cents.


ss#4
Member
posted December 02, 2003 10:52 AM
woa sorry about the big grin!!!!!


zeroracing
Member
posted December 02, 2003 01:56 PM
[QUOTE]Originally posted by POrding:
[B]I wnated to ask what everyone recommends as far as water pump (aluminum or cast iron)? If aluminum what brand? Looking for inputs for a SB Chevy.


Just wanted to provide more info on my set-up. I'm running alcohol. So getting heat into the engine is the concern. What pulley's should I look at running? Should I look to install restricters also? Thanks again for all the feedback.



Back to the Archives