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Water Pump question

Started by TruckDriver, January 27, 2006, 08:10:26 PM

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TruckDriver

January 27, 2006, 08:10:26 PM
If I put a high volume water pump on my car, would it really be worth it. I mean, I know it will help cool better, but does it really matter for a car that is going to be street driven most of the time? Right now the air conditioning stuff is not on the car, but I do plan on hooking it up eventually.
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

694spdRT

#1
January 27, 2006, 08:39:50 PM
I would just get a standard water pump for a A/C equipped car in a mild buildup. The fan shroud and radiator are what I watch out for if you worried about overheating.
1968 Charger 383 auto
1969 Charger R/T 440 4 speed
1970 Charger 500 440 auto
1972 Challenger 318
1976 W200 Club Cab 4x4 400 auto 
1978 Ramcharger 360 auto
2001 Durango SLT 4.7L (daily driver)
2005 Ram 2500 4x4 Big Horn Cummins Diesel 6 speed
2005 Jeep Grand Cherokee Limited 5.7 Hemi

TruckDriver

#2
January 27, 2006, 09:49:39 PM
Well, I am going to pump the engine up to about 300-350hp. So standard will be enough?
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

Plumcrazy

#3
January 27, 2006, 10:42:49 PM
Chrysler used the high volume pump on most vehicles with A/C.
If you are planning to reinstall A/C the I would use a high volume pump.

It's not a midlife crisis, it's my second adolescence.

TruckDriver

#4
January 27, 2006, 10:48:51 PM
Quote from: Plumcrazy on January 27, 2006, 10:42:49 PM
Chrysler used the high volume pump on most vehicles with A/C.
If you are planning to reinstall A/C the I would use a high volume pump.

Ok, I didn't know that either, so it's good I asked. That is what I will do then. Thanks!
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

Blown70

#5
January 27, 2006, 10:50:57 PM
If you are really worried run a ALUM rad?  Or a reason that you do not want to?

Tom

TruckDriver

#6
January 27, 2006, 11:01:24 PM
Quote from: Blown70 on January 27, 2006, 10:50:57 PM
If you are really worried run a ALUM rad?  Or a reason that you do not want to?

Tom

No reasons for either. But I am going to put a new water pump, and I figured it wouldn't hurt to see what you guys would say. I just wanna do it right.
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

471_Magnum

#7
January 28, 2006, 08:29:12 AM
What ever you decide, don't buy a Flow Kooler pump.  :down:
"I can fix it... my old man is a television repairman... he's got the ultimate set of tools... I can fix it."

RECHRGD

#8
January 28, 2006, 09:42:59 AM
When I first got my car on the road (mild 440), it would heat up in traffic.  I went the aluminum radiator route, then a shroud, then an electric auxilary pusher fan.  Although they helped, nothing stopped the problem until I got a Milodin (sp?) high volume water pump.  Bob
13.53 @ 105.32

694spdRT

#9
January 28, 2006, 10:22:50 AM
When I said get the standard water pump in my first post I was talking about the higher volume standard A/C water pump. It has more fins than a non A/C pump. I have used the A/C pump in both 383 and 440's without any overheating issues as long as the radiator is sized right and the shroud is in place.

What size radiator does your '72 have? I looked at a '74 big block car with the 28" radiator and shroud. That made me realize how undersized the 22" radiator w/o shroud originally in my '68 383 Charger actually was.   
1968 Charger 383 auto
1969 Charger R/T 440 4 speed
1970 Charger 500 440 auto
1972 Challenger 318
1976 W200 Club Cab 4x4 400 auto 
1978 Ramcharger 360 auto
2001 Durango SLT 4.7L (daily driver)
2005 Ram 2500 4x4 Big Horn Cummins Diesel 6 speed
2005 Jeep Grand Cherokee Limited 5.7 Hemi

Headrope

#10
January 28, 2006, 11:40:20 AM
Everyone I've ever asked suggested I go with a waterpump for a Hemi with AC.
Supposedly there is horsepower gain as well as additional cooling ... who knows. I do know that I run a mildly built 383 and have never had a problem with the pump.
Sixty-eights look great and the '69 is fine.
But before the General Lee there was me - Headrope.

Johnny SixPack

#11
January 28, 2006, 12:13:04 PM
Quote from: RECHRGD on January 28, 2006, 09:42:59 AM
When I first got my car on the road (mild 440), it would heat up in traffic.  I went the aluminum radiator route, then a shroud, then an electric auxilary pusher fan.  Although they helped, nothing stopped the problem until I got a Milodin (sp?) high volume water pump.  Bob

Yep!

Awesome unit.

Use one on both my Chargers.

Just make sure to swap out the old thermostat for the corresponding hi-flow piece.
Johnny's Herd:
'69 Charger SE, '70 Charger R/T SE 496 Six Pack, '72 Chrysler Imperial LeBaron, '74 International Scout II, '85 Ford F-250 Diesel, '97 Lincoln Town Car Signature Series

"If everyone is thinking alike, then someone isn't thinking." - Gen. George S. Patton Jr.

"If its got tits or tires, you're going to have trouble with it." - Unknown

Got Dodge Fever? There's only one cure.....Charger!

firefighter3931

#12
January 28, 2006, 02:07:31 PM
Another vote for the Milidon HV pump with a high flow stat. Like Jim (471Magnum) says....stay away from the flowcooler pumps. I've heard/read from several sources of the impeller falling off within a couple thousand miles....not good.  :icon_smile_dead:

Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

TruckDriver

#13
January 28, 2006, 03:43:33 PM
Where can I get the Milidon HV pump? I never heard of it.
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

deathcharger71

#14
January 28, 2006, 04:17:04 PM
does a shroud make a big difference, like if i added a shroud would it be possible to get my engine temp down from 190 to 180? or on hot summer days 200 to 190?

John_Kunkel

#15
January 28, 2006, 06:24:47 PM
Quote from: Headrope on January 28, 2006, 11:40:20 AM
Everyone I've ever asked suggested I go with a waterpump for a Hemi with AC.
Supposedly there is horsepower gain as well as additional cooling ... who knows.

First off, the Hemi was never available with AC.

The AC water pumps actuallly have smaller diameter impellers and less vanes (6) than the non-AC pumps (8 vanes). The AC pumps are driven faster (typically 140% of crank speed) due to the overdrive ratio on the drive pullies, so installing an AC pump with non-AC pullies will actually result in moving less water. The AC pumps should only be used with the corresponding pullies.

The reason the AC pumps have smaller impellers and less vanes is to prevent cavitation at the higher speeds.
Pardon me but my karma just ran over your dogma.

Johnny SixPack

#16
January 28, 2006, 07:15:48 PM
Quote from: DodgeChargerGuy on January 28, 2006, 03:43:33 PM
Where can I get the Milidon HV pump? I never heard of it.

I picked mine up from Summit:

Milodon High-Volume Mechanical Water Pump @ Summit Racing

Johnny's Herd:
'69 Charger SE, '70 Charger R/T SE 496 Six Pack, '72 Chrysler Imperial LeBaron, '74 International Scout II, '85 Ford F-250 Diesel, '97 Lincoln Town Car Signature Series

"If everyone is thinking alike, then someone isn't thinking." - Gen. George S. Patton Jr.

"If its got tits or tires, you're going to have trouble with it." - Unknown

Got Dodge Fever? There's only one cure.....Charger!

TruckDriver

#17
January 28, 2006, 08:33:12 PM
Thanks, I'll just add that to the list I already got going at Summit.
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

694spdRT

#18
January 29, 2006, 12:22:18 AM
Quote from: John_Kunkel on January 28, 2006, 06:24:47 PM
Quote from: Headrope on January 28, 2006, 11:40:20 AM
Everyone I've ever asked suggested I go with a waterpump for a Hemi with AC.
Supposedly there is horsepower gain as well as additional cooling ... who knows.

First off, the Hemi was never available with AC.

The AC water pumps actuallly have smaller diameter impellers and less vanes (6) than the non-AC pumps (8). The AC pumps are driven faster (typically 140% of crank speed) due to the overdrive ratio on the drive pullies, so installing an AC pump with non-AC pullies will actually result in moving less water. The AC pumps should only be used with the corresponding pullies.

The reason the AC pumps have smaller impellers and less vanes is to prevent cavitation at the higher speeds.

Well I guess I had that backwards then. I am running the standard non A/C pump. I pulled out the water pump on my '68 and it was apparently the A/C style pump on a non A/C car. The parts store brought out the non A/C type and I bought it because it looked like it would move more water than the one I had.

Thanks for the info. Learned something new today. 
1968 Charger 383 auto
1969 Charger R/T 440 4 speed
1970 Charger 500 440 auto
1972 Challenger 318
1976 W200 Club Cab 4x4 400 auto 
1978 Ramcharger 360 auto
2001 Durango SLT 4.7L (daily driver)
2005 Ram 2500 4x4 Big Horn Cummins Diesel 6 speed
2005 Jeep Grand Cherokee Limited 5.7 Hemi

John_Kunkel

#19
January 29, 2006, 05:30:27 PM
A lot of parts stores' catalogs nowadays don't show a difference between AC and non-AC pumps on older Mopars, they just sell you the 6-vane pump as a "one type fits all".
Pardon me but my karma just ran over your dogma.

is_it_EVER_done?

#20
January 29, 2006, 07:14:06 PM
To Deathcharger71:  Nothing will make more difference than adding a shroud. If you are having cooling problems, this is the first place you need to address if your not running one. All the radiator capacity in the world won't help if the air is not being pulled through it.

TruckDriver

#21
January 29, 2006, 07:52:05 PM
That sucks too cause Mine was missing when I bought the car. And I cant seem to find a good used one.
PETE

My Dad taught me about TIME TRAVEL.
"If you don't straighten up, I'm going to knock you into the middle of next week!" :P

deathcharger71

#22
January 29, 2006, 08:44:01 PM
Quote from: is_it_EVER_done? on January 29, 2006, 07:14:06 PM
To Deathcharger71:  Nothing will make more difference than adding a shroud. If you are having cooling problems, this is the first place you need to address if your not running one. All the radiator capacity in the world won't help if the air is not being pulled through it.

thanks! ill put one up right now. i should kick myself in the balls for not buying one earlier, i spent all summer running warm and having to shut her down if i was at a light too long.
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