 Bypass Valve on Stock Oil Filter Console, Looking for relief pressure of bypass valve to help with design of remote oil filter and cooler |
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| Mr Beckstar |
 Jan 25 2025, 05:37 PM
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Newbie  Group: Members Posts: 44 Joined: 28-April 18 From: Australia Member No.: 22,082 Region Association: Australia and New Zealand  |
Hi all.
I have a 4 cylinder 2 litre and am adding a remote oil filter and oil cooler circuit via a spin on adaptor attached to the stock oil filter console mount. But I noticed the oil filter bypass valve in the stock oil filter mount (circled in photo below) and now I’m concerned that, at high rpm, I’ll be bypassing the remote cooler/filter circuit. Does anyone know the bypass valve relief pressure setting? Knowing that would at least allow me to judge whether it’s an issue.  |
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| Superhawk996 |
Mar 11 2025, 07:06 AM
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914 Guru Group: Members Posts: 7,028 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch 
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You’re in uncharted territory as far as I know.
I certainly have not done the data collection and in general I’m not a fan of external coolers and trying to keep oil at 180F so I have that built in bias. Here is a Samba thread on flow volumes for a T1 engine with a 26mm pump has oil flow volumes in the 6-7 GPM range that seem plausible to what I have previously seen published for Small Block Chevy circle track engines that want filters rated for 10 GPM. Samba https://www.thesamba.com/vw/forum/viewtopic.php?t=166608 Chevy https://www.chevrolet.com/content/dam/chevr...NAL-2-13-23.pdf I know this doesn’t answer your question about pressure drop across the external cooler and plumbing but may help with the magnitude of flow rate. Interesting side note: at 100C oil can be lower viscosity than water. Might be interesting to use your pressure drop calculations and see what your prediction is vs what you measure. |
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Posts in this topic
Mr Beckstar Bypass Valve on Stock Oil Filter Console Jan 25 2025, 05:37 PM
Montreal914 Good concern and already discussed here in the pas... Jan 25 2025, 06:09 PM
Mr Beckstar
Good concern and already discussed here in the pa... Jan 26 2025, 05:16 AM Montreal914 Looks like it is a couple of psi.
Read @[url=htt... Jan 26 2025, 09:55 AM Superhawk996 I hate chiming in on this because I don’t have a... Jan 26 2025, 12:38 PM technicalninja :agree:
I believe every single ICE engine with b... Jan 26 2025, 01:00 PM Mr Beckstar Thanks for the great responses everyone :D
If i... Jan 27 2025, 07:11 AM Superhawk996 Where in the world did you come up with 3 psi?
I ... Jan 27 2025, 07:44 AM Mr Beckstar
Where in the world did you come up with 3 psi?
M... Jan 27 2025, 07:17 PM Superhawk996
I’m also a mechanical engineer and done a fair... Jan 27 2025, 08:15 PM Mr Beckstar
I’m also a mechanical engineer and done a fai... Jan 28 2025, 01:31 AM Superhawk996
The spring will dictate the [force], the [area] i... Jan 28 2025, 07:54 AM Mr Beckstar
The spring will dictate the [force], the [area] ... Jan 29 2025, 04:00 AM emerygt350 And why on earth would you want to send cold oil t... Jan 27 2025, 06:22 PM Mr Beckstar
And why on earth would you want to send cold oil ... Jan 27 2025, 07:22 PM technicalninja
Where in the world did you come up with 3 psi?
... Jan 27 2025, 08:19 PM Mr Beckstar
Sadly, the old saying "if you want somethin... Jan 28 2025, 01:35 AM technicalninja
I’m also a mechanical engineer and done a fai... Jan 27 2025, 08:25 PM Mr Beckstar
[quote name='Superhawk996' post='3189070' date='J... Jan 28 2025, 01:38 AM GregAmy Can I insert just a couple basic questions here?
... Jan 28 2025, 08:11 AM Mr Beckstar
Can I insert just a couple basic questions here?
... Jan 29 2025, 04:16 AM Superhawk996 I don’t want to answer for OP but my understandi... Jan 28 2025, 10:15 AM GregAmy
I don’t want to answer for OP but my understand... Jan 28 2025, 10:23 AM Superhawk996
I suggest it's a non-issue. But if you're... Jan 28 2025, 10:27 AM Mr Beckstar
I don’t want to answer for OP but my understan... Jan 29 2025, 04:26 AM Mr Beckstar
…I view this discussion as largely theoretica... Mar 11 2025, 04:17 AM Mr Beckstar I looked at those two links and they’re not rele... Jan 29 2025, 04:24 AM Mr Beckstar The oil filter bypass valve piqued my interest so ... Feb 21 2025, 03:31 AM Mr Beckstar The above pressure readings were measured using th... Feb 21 2025, 04:10 AM Superhawk996 Interesting data points.
Food for thought on the ... Feb 21 2025, 08:40 AM Mr Beckstar Okay, I just used a brand new gauge with 0-15 PSI ... Mar 11 2025, 03:13 AM Mr Beckstar Next step is to fit the two pressure tappings into... Mar 11 2025, 03:29 AM Mr Beckstar
You’re in uncharted territory as far as I know.... Mar 12 2025, 02:29 AM Superhawk996 Food for thought
If you look at histograms of av... Mar 12 2025, 07:55 AM Mr Beckstar
Food for thought
If you look at histograms of a... Mar 13 2025, 01:49 AM Superhawk996
At 68 MPH, the engine’s doing 4,200 rpm. Bei... Mar 13 2025, 06:46 AM |
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