Increase water flow at idle question.....
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 5,419
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From: Are you the bug or are you the windshield.....
Increase water flow at idle question.....
What is a good way to increase the amount of water flow through the engine while the car is at idle while stopped in traffic?????
The temps for the engine are fine during driving conditions, but while stopped at a light the temp just climbs, and I'm thinking if there is a way to get more flow through the motor it would stay cooler.......
The fan cools it off, but I'm looking for something that will help when the AC is running, and the fan is on constantly......
The temps for the engine are fine during driving conditions, but while stopped at a light the temp just climbs, and I'm thinking if there is a way to get more flow through the motor it would stay cooler.......
The fan cools it off, but I'm looking for something that will help when the AC is running, and the fan is on constantly......
Race Director
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Re: Increase water flow at idle question..... (Husker Vette)
http://www.stewartcomponents.com/ :yesnod: I have one on my car and it is great..
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 5,419
Likes: 0
From: Are you the bug or are you the windshield.....
Re: Increase water flow at idle question..... (corvette0096)
http://www.stewartcomponents.com/ :yesnod: I have one on my car and it is great..
Race Director
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Re: Increase water flow at idle question..... (corvette0096)
Here is some more good reading..
http://www.stewartcomponents.com/ede...comparison.htm
http://www.stewartcomponents.com/ede...comparison.htm
Melting Slicks
Joined: Jun 2000
Posts: 3,215
Likes: 6
From: Tampa Florida
Re: Increase water flow at idle question..... (Husker Vette)
If you are stopped in traffic and your fans aren't on...there will be no air going past the radiator...hence the reason you car get hot (and all other C4's). Older cars had engine driven fans that turned all the time...
Adding a high flow waterpump will help to a point (how much?) but you will still be in same boat. The engine will get warm when parked...not overheat, just hot like it was designed.
:)
Adding a high flow waterpump will help to a point (how much?) but you will still be in same boat. The engine will get warm when parked...not overheat, just hot like it was designed.
:)
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Re: Increase water flow at idle question..... (Husker Vette)
Two months ago I had a head gasket fail in my 87 vette and did a lot of work on the engine as it had 177k miles on it and I didn't want to go back in it later. The water pump was just starting a slow leak at the weep hole so I replaced it with a Stewart , $104 delivered, because of its higher coolant flow (41% by their ads). With 90's temps and sitting at a light and with the stock 195 thermostat, I use my manual switch to force the fan on and the coolant temp goes to 200 F and drops to 195 when I get underway. With the GM pump, same conditions, my coolant temps went to 220 F and would slowly drop when I got underway. I knew I needed more coolant flow when I had the GM pump because I could lower the temperature at a stop light by racing the engine , proving that the GM pump flow is inadequite at idle. I highly recommend installing a Stewart water pump. After all the engine work, I watched as my mechanic left my 87 idle and the temp went to 238 F , the fan came on and the coolant temp dropped to 211 F and the fan shut off and it would repeat this cycle.
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Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 5,419
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From: Are you the bug or are you the windshield.....
Re: Increase water flow at idle question..... (jfb)
I could lower the temperature at a stop light by racing the engine , proving that the GM pump flow is inadequite at idle.
When the AC is not running, it follows the normal path of up to 227, fans kick on, down to 212, fans off but it seems to want to run up high while the AC is running and wont drop until the RPM's are increased....
Hopefully I can get through the summer, and I can make this a fall project when it is cooler outside.....
[Modified by Husker Vette, 5:21 AM 7/11/2002]
Safety Car
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Re: Increase water flow at idle question..... (corvette0096)
Not saying anything bad about Stewart, but being as I am a cheap skate....I think the only real benefit of a stewart pump is this:
Of course, that impeller back plate was only $10.00 last time I bought one from Summit.
I'm not too worried about the quality of a GM pump...heck the one on my 87 has been there for 117K miles and still works fine, so I don't think I need better bearings or anything.
Stewart High Flow impeller offers a closed back machine iron installed with .015" clearance for greater flow and pressure
Of course, that impeller back plate was only $10.00 last time I bought one from Summit.
I'm not too worried about the quality of a GM pump...heck the one on my 87 has been there for 117K miles and still works fine, so I don't think I need better bearings or anything.
Thread Starter
Le Mans Master
Joined: Jun 2001
Posts: 5,419
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From: Are you the bug or are you the windshield.....
Re: Increase water flow at idle question..... (TIMSPEED)
What year is your vette Husker?
Another vote for the Stewart High Flow, I'm getting on ASAP. They're AWESOME pumps for the L98!
Another vote for the Stewart High Flow, I'm getting on ASAP. They're AWESOME pumps for the L98!
I think getting a Stewart Water Pump for Christmas sounds like a plan..... Glad Christmas is whenever I decide to buy it...... :D
