Oil Flow confusion?
#31
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Remember? --> https://rennlist.com/forums/968-foru...l#post15076676
#32
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If I only knew how Porsche did it with the 968 Turbo I would be happy since they should know but I have no access to any of these super rare cars nor have I found any pictures of how they routed the lines between the coolers.
#33
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You could try contacting one of the owners of the original cars. Pretty sure one of them is a sponsor on Rennlist, no?
#34
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#36
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#37
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Running two coolers in a series will likely work fine. Yes, there will be some pressure loss relative to a parallel arrangement, but T-fittings also result in a pressure loss. Some of the fluid dynamics guys have suggested that every 90 degree turn in fluid results in a 5psi drop in pressure. (Use Y-fittings if you're going to do it.) Further, the series arrangement keeps the oil line routing simple.
A very important consideration often missed is airflow to and from the cooler. Air, like liquid, will seek the path of least restriction which is often AROUND the cooler. To ensure air passes THROUGH, a sealed inlet duct needs to be fashioned. An exit for the air is just as important. Be sure there's an outlet path too. Coolers are often seen with clever inlet ducts, but with the cooler mounted against a bulkhead with no path for air to exit. It's really not rocket science, but many get it wrong.
A very important consideration often missed is airflow to and from the cooler. Air, like liquid, will seek the path of least restriction which is often AROUND the cooler. To ensure air passes THROUGH, a sealed inlet duct needs to be fashioned. An exit for the air is just as important. Be sure there's an outlet path too. Coolers are often seen with clever inlet ducts, but with the cooler mounted against a bulkhead with no path for air to exit. It's really not rocket science, but many get it wrong.
#38
Rennlist Member
Thread Starter
Running two coolers in a series will likely work fine. Yes, there will be some pressure loss relative to a parallel arrangement, but T-fittings also result in a pressure loss. Some of the fluid dynamics guys have suggested that every 90 degree turn in fluid results in a 5psi drop in pressure. (Use Y-fittings if you're going to do it.) Further, the series arrangement keeps the oil line routing simple.
A very important consideration often missed is airflow to and from the cooler. Air, like liquid, will seek the path of least restriction which is often AROUND the cooler. To ensure air passes THROUGH, a sealed inlet duct needs to be fashioned. An exit for the air is just as important. Be sure there's an outlet path too. Coolers are often seen with clever inlet ducts, but with the cooler mounted against a bulkhead with no path for air to exit. It's really not rocket science, but many get it wrong.
A very important consideration often missed is airflow to and from the cooler. Air, like liquid, will seek the path of least restriction which is often AROUND the cooler. To ensure air passes THROUGH, a sealed inlet duct needs to be fashioned. An exit for the air is just as important. Be sure there's an outlet path too. Coolers are often seen with clever inlet ducts, but with the cooler mounted against a bulkhead with no path for air to exit. It's really not rocket science, but many get it wrong.
I will look in to air exit ducts. As you see I have the "fancy" factory air inlet ducts already 😉. I can probably manufacture something in glasfiber as exit ducts.
//PF
#40
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/PF
#41
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Finished the cooler setup
I finally finalized the dual oilcooler setup. There was many small issues to adress to get it all to fit properly but I am happy with the end result.
Thanks for everyones input!
Thanks for everyones input!
#42
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#43
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