914/V8 Fan Operation, Conversion Cooling |
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914/V8 Fan Operation, Conversion Cooling |
tyler |
Jul 22 2005, 08:01 AM
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#1
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Member Group: Members Posts: 335 Joined: 24-September 03 From: southern california Member No.: 1,192 |
Can you conversion guys tell me how your electric fans operate and if you've modified the air dam?
Put in my 15.5x28 Griffin radiator with 944 Turbo fans on a shroud. Crusin at 70 on the freeway the temp starts at 170 for 6 miles and creeps up to 195 when the fans come on and bring it back to 170. This continues to cycle like this both on the freeway and around town. I'm using a 160 Tsat until the cooling system is done. I ran with the lid off so I know the cuts in the wells are ok. So I figure I'm either blocking the airflow with the fans/shroud or the air dam need to channel the air in somehow. It doesn't seem to me like the temp should cycle like this. I'd like to hear how yours run. Thanks, Tyler '70 914/350/4 webers |
John2kx |
Jul 22 2005, 08:32 AM
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#2
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Senior Member Group: Members Posts: 502 Joined: 22-August 03 From: Augusta, Ga. Member No.: 1,066 |
Tyler,
It does not sound like you have a real overheating problem since your temps. are well within normal range, but I admire your desire to smooth things out. You may want to burp the system a few times to ensure all air is removed. This will help the temperature cycling if air is present. A 180F thermostat may keep temps more consistant as well. Of course anytime you break into the cooling system you will have to spend several days going through the burping procedure. A kinked hose can cause similar problems. Double check the inlet hose to water pump as well as the two smaller hoses from pump to inlet at engine. What temps. are you using to turn fans on and off? The attached pic shows what RH uses and should show the on and off trip points. Another factor may be where you have your sensor located. The optimum location is at the radiator with sensor actually making contact with coolant as opposed to being attached to a hose or radiator surface. John Attached image(s) |
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