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> Dry sump leakdown prevention?
gnomefabtech
post Mar 25 2024, 11:02 AM
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Hello!

So I'm running a dry-sump system on my 'teen and it's all great except if the car sits for a few days the oil in the tank slowly fills the motor. This wouldn't be a big deal except it floods the turbo and then there's smoke. So much smoke.

Does anyone have experience using a low cracking pressure check valve to hold the oil in the tank until the car is running? I see a selection of these on McMaster but I'm understandably nervous about restricting the flow into the engine from the tank. It's a -12 an line coming out of the tank. What did Porsche do about this on their dry-sump systems?

I'm running a Hayabusa engine (build thread to follow) so it's a pretty unconventional build but the oiling thing is common to all dry-sumps.

Thanks for answering these questions.
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gnomefabtech
post Mar 26 2024, 07:02 PM
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Thanks for the replies. My oil line is a -12 AN so I have to also adapt to use the Rothsport unit. DOes anyone know the diameter of the stock Porsche "S" hose the valve clamps into?
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gnomefabtech   Dry sump leakdown prevention?   Mar 25 2024, 11:02 AM
GregAmy   Edit: /4 or /6? Never mind I have dry sump in my ...   Mar 25 2024, 11:18 AM
gnomefabtech   Thanks for the suggestion. $300 is pretty st...   Mar 25 2024, 09:42 PM
fixer34   Rothsport. Is your engine worth more than $3...   Mar 25 2024, 09:54 PM
mepstein   You might be able to find a used one on pelican. N...   Mar 26 2024, 04:59 AM
mlindner   Rothsport is the way to go. A lot of 911 use them....   Mar 26 2024, 05:24 AM
gnomefabtech   Thanks for the replies. My oil line is a -12 AN s...   Mar 26 2024, 07:02 PM
sixnotfour   I have a rear mounted oil tank and going install a...   Mar 26 2024, 07:21 PM
gnomefabtech   SIXNOTFOUR- I like your resourcefulness there but ...   Mar 26 2024, 07:54 PM
yeahmag   I use a quarter turn valve at the tank as well.   Mar 27 2024, 10:11 AM
stownsen914   Depending on where the tank is mounted and how the...   Mar 27 2024, 10:44 AM
ClayPerrine   I'm not keen on putting something in the oil ...   Mar 27 2024, 03:14 PM
arbitrary   What pressure pump is the Hayabusa engine using? I...   Mar 27 2024, 03:40 PM
gnomefabtech   What pressure pump is the Hayabusa engine using? ...   Mar 27 2024, 06:32 PM
r_towle   Stock 84 3.2 911 here. Why does mine work? Mine i...   Mar 27 2024, 08:04 PM
arbitrary   I have a Hayabusa engine in a Caterham; it uses a ...   Mar 28 2024, 07:46 AM
gnomefabtech   I think it has to do with how good your valve seal...   Mar 28 2024, 10:03 AM
technicalninja   [quote name='arbitrary' post='3136290' date='Mar ...   Mar 28 2024, 01:28 PM
gnomefabtech   https://youtu.be/ZMesefymiTc It's still a wor...   Mar 28 2024, 09:21 PM
gnomefabtech   I solved it. I am using this valve here: https:/...   Apr 5 2024, 12:07 PM


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