Your turbo coolant lines are all f*cked up?
01-17-2014, 08:12 AM
#121
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The coolant never flowed right because one turbo is always warmer than the other, and once the warmer turbo cooled, the water flow would reverse, and back and forth and they would stay at operating temp for hours.
that's why I run a precision turbo now, no coolant lines.
that's why I run a precision turbo now, no coolant lines.
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01-17-2014, 08:29 AM
#122
Former Vendor
Join Date: Dec 2007
Location: Texas Hill Country
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Cooling the center section by whatever method one can devise is intended to reduce the operating temps right there to reduce the damage to the oil's high temp stability additives. This alone was intended to keep the oil alive considerably longer by vastly reducing the slow but sure damage to the oils high temp adatives that keep it from charing.
The entire scheme has worked very well.
Throw in the some better capability of synthetics and the oil issue of turbos is solved.
The entire problem came about because early OEM turbo (70's/80's) makers failed to mention the more frequent oil change intervals necessary.
With old mineral oils, no water cooling, no turbo timers, no nothin, except 2500 mile oil change intervals and all was ok then. Just as it would be today.
corky
The entire scheme has worked very well.
Throw in the some better capability of synthetics and the oil issue of turbos is solved.
The entire problem came about because early OEM turbo (70's/80's) makers failed to mention the more frequent oil change intervals necessary.
With old mineral oils, no water cooling, no turbo timers, no nothin, except 2500 mile oil change intervals and all was ok then. Just as it would be today.
corky
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01-17-2014, 09:01 AM
#123
Boost Czar
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Location: Chantilly, VA
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Cooling the center section by whatever method one can devise is intended to reduce the operating temps right there to reduce the damage to the oil's high temp stability additives. This alone was intended to keep the oil alive considerably longer by vastly reducing the slow but sure damage to the oils high temp adatives that keep it from charing.
The entire scheme has worked very well.
Throw in the some better capability of synthetics and the oil issue of turbos is solved.
The entire problem came about because early OEM turbo (70's/80's) makers failed to mention the more frequent oil change intervals necessary.
With old mineral oils, no water cooling, no turbo timers, no nothin, except 2500 mile oil change intervals and all was ok then. Just as it would be today.
corky
The entire scheme has worked very well.
Throw in the some better capability of synthetics and the oil issue of turbos is solved.
The entire problem came about because early OEM turbo (70's/80's) makers failed to mention the more frequent oil change intervals necessary.
With old mineral oils, no water cooling, no turbo timers, no nothin, except 2500 mile oil change intervals and all was ok then. Just as it would be today.
corky
Do you even 20°?
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01-17-2014, 09:22 AM
#127
mkturbo.com
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One of my good friends father in law owns a Covair and is currently a member of the Corvair club of America, or whatever it is named. He actively goes to meets on the east coast with it.
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01-17-2014, 09:29 AM
#130
i forgot water can't flow if it's not in a straight line hose from low to high. Probably why my garden hose never works unless i unravel it and stand on the roof.
this is also probably why normal siphoning never works either. I was never EVER able to siphon water out of my fish tank to clean it, or gas from a gas tank, because i never had a perfectly straight hose.
i also dont understand phsyics and thermal dynamics.
this is also probably why normal siphoning never works either. I was never EVER able to siphon water out of my fish tank to clean it, or gas from a gas tank, because i never had a perfectly straight hose.
i also dont understand phsyics and thermal dynamics.
exactly it all has to do with pressure like I was sayin at the begining. I notice when I turn off my car I can hear water moving through the turbo water lines. Im a firm believer that water will travel from the hottest point to a less hot point causing circulation in the cooling system. Hotter the water the faster the molecules move the higher the pressure. Just a side note I pretty much gave up on Garrett ever since I found out my 2560r has to be ported. Completely unrelated to the topic but I cant figure why the hell they sold the turbo without considering a free flowing exhaust.
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01-17-2014, 09:31 AM
#132
Boost Czar
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exactly it all has to do with pressure like I was sayin at the begining. I notice when I turn off my car I can hear water moving through the turbo water lines. Im a firm believer that water will travel from the hottest point to a less hot point causing circulation in the cooling system. Hotter the water the faster the molecules move the higher the pressure. Just a side note I pretty much gave up on Garrett ever since I found out my 2560r has to be ported. Completely unrelated to the topic but I cant figure why the hell they sold the turbo without considering a free flowing exhaust.
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01-17-2014, 12:03 PM
#136
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Join Date: Jul 2005
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Originally Posted by Braineack
i forgot water can't flow if it's not in a straight line hose from low to high. Probably why my garden hose never works unless i unravel it and stand on the roof.
Additionally boiling coolant absorbs a lot of heat. You want those steam bubbles to flow out; if there's a high spot near the turbo, the steam bubble may "grow" all the way down to the CHRA.
There's a reason the model T's convective flow has all-uphill flow.
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