[QUOTE=johnvk7;816779]
Where is your sensor? Between the oil cooler and the block?[/QUOTE] Nope, it's in the blocks upper rear right hand main oil gallery - fitted via an OEM oil gallery adapter. I'll find the pics |
Whats everyones oil pressure then, ie cold isle, hot idle, hot max? I only have a defi pressure gauge, sensor at stock oil light hole.
using the Perth-WRX mobile app |
Here's a pic of where my Defi oil Temp sensor is located.
[IMG]https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xpf1/v/t1.0-9/1931518_150859110072_4945160_n.jpg?oh=6dc4e3cfa86e6fd7a5b48f4faf4ff1f2&oe=5551DB3C&__gda__=1432224101_0f6a3c84474c5c2b7fea1520e9955c5f[/IMG] Top left of the pic is the turbo compressor outlet, on the right is the Throttle body. This gallery feeds the RH head & turbo. Temp sensors in sandwhich plates only give you the oil temp after the heat exchanger (oil 'cooler') which is a false reading..........Info care of Crawford Motorsport. |
[QUOTE=s20525xxx;816794]Whats everyones oil pressure then, ie cold isle, hot idle, hot max? I only have a defi pressure gauge, sensor at stock oil light hole.[/QUOTE]
Cold idle 600kpa (87Psi) 200kpa (30 psi) at idle @ Operating temp - 700kpa (101Psi) from 1500 rpm to redline (8400rpm) - Defi sensor in factory position too. On 5w40 United GX Racing PAO Synthetic. |
650kpa cold idle. 210kpa hot idle @750rpm. 710kpa @~5300+rpm. Penrite racing 10w40.
I was told thats too thick? using the Perth-WRX mobile app |
Oil pressure doesn't keep an engine alive (as opposed to popular belief) oil flow does.
Why? because it removes heat from the bearings & keeps you oil below the temp at which it loses film strength - it's the oils film strength that prevents metal/metal contact. |
[QUOTE=Rossco;816807]Oil pressure doesn't keep an engine alive (as opposed to popular belief) oil flow does.
Why? because it removes heat from the bearings & keeps you oil below the temp at which it loses film strength - it's the oils film strength that prevents metal/metal contact.[/QUOTE] So what oil analysis data represent heat transfer ability? Thx using the Perth-WRX mobile app |
Conventional used oil analysis tests do not measure film strength.
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[QUOTE=johnvk7;816677]Engine oil should be around 80 to 90 degC depending how hard your driving. Sounds like your gauge or sensor is faulty[/QUOTE]
WHS^^ on normal driving, however I have a sandwich plate instead of connecting it to the oil gallery Coolant temp is 90 deg +2/-~4 degs connected to the top rad hose both using Defi link BF gauges |
THe oil pressure and flow rates given in the workshop manual are given at an oil temp of 120degC, so I would say that an oil temp of between 40 and 60 degC is less then optimum for fuel economy and performance
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