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Oil Temp at Turbos

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Old 01-25-09, 02:39 PM
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AB Oil Temp at Turbos

OK.

I've spent the last few hours searching and haven't been able to find the answers.

I have a rhd, almost exactly the same as lefts except in cockpit/steering ( i just look at all the interior pics in a mirror)

I'm throwing in Defi Racer gauges, water temp, oil temp and boost and AEM Uego AFR.

I think I've got water figured out. I'm doing the TB hose. A couple degree cooler reading than the block doesn't bother me as much as a stuck T-Stat along with kicking the crap out of the housing.

Boost is simple except getting through the firewall. I may use the hood release (on my turbo side) and poke through.
Does anyone know of a better way. The hole isn't that big and I'd rather find something else.

Oil temp sensor location is the tough one. Having the water temp gauge, I'm not so concerned with oil in the engine or pan. What I want to watch is the oil temp in my turbos. Has anyone done this?

The electrical part was fairly simple after doing some exploration. There's a large harness going through under my ABS on my passenger side that I ran a circuit from my battery, a fuse and relay later and I won't have to worry about overloading my radio.

Any good advice would be appreciated. There's so much conflicting opinion on here it's hard to seperate the crap from the good stuff.

Cheers
Matt
Old 01-26-09, 12:10 AM
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Originally Posted by efinni23
Oil temp sensor location is the tough one. Having the water temp gauge, I'm not so concerned with oil in the engine or pan. What I want to watch is the oil temp in my turbos. Has anyone done this?
Oil temp should be considered as an overall temp. The temps at one small point in one of the turbo lines won't give you an accurate assessment of the overall oil temp, which is what you really need.

You may find that the turbo oil temp is much higher or lower than the rest of the engine. Then what will you do? You can't try to compensate for it since you won't know if there is anything wrong.

I think it's a bad idea.
Old 01-26-09, 12:23 AM
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dumb idea. your oil temp does not change all of a sudden when it hits the turbos. they do assist in heating your overall temp, which is what you should be worried about.
Old 01-26-09, 07:30 PM
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I'm, by no streach of the imagination an expert nor all that experienced with cars but I'm learning more every day. My logic goes like this: If my engine over heats I'll hopefully notice it with the water temp.
My experience and what I've read tells me that the turbos are the hottest part of the car. If I'm watching for overheating of the turbos, what should I be looking at.
I don't want to coke them up or warp their fins so.....
They're oil cooled so I figure I can watch the oil temp, EGT, or maybe my manifold temp. Oil temp seems reasonable. I have a wideband AFR gauge so that puts off needing an EGT by my understanding.

A bad idea? If the oil temp is more or less the same all over the system then it shouldn't matter where I put the sensor. I'm unsure about the Gready adapter for the filter neck is there a conflict with the filter? I don't like the idea of putting any holes in anything, let alone the oil pan and that adapter for the drain plug seems dumb; twisting wires every oil change?

Obviously I wouldn't put a 5mm sensor into a 6mm line. Does anyone know where I can find lubrication diagrams that give an indication of line size?

If all the turbo lines are small than that'll nix that idea.
Old 01-26-09, 07:51 PM
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No idea why you would do this. Oil temp in the standard place is all you will need. Its like putting a EGT sensor at your muffler just to see how hot your exhaust is before it laves...
Old 01-26-09, 08:32 PM
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Originally Posted by efinni23
I'm, by no streach of the imagination an expert nor all that experienced with cars but I'm learning more every day. My logic goes like this: If my engine over heats I'll hopefully notice it with the water temp.
My experience and what I've read tells me that the turbos are the hottest part of the car. If I'm watching for overheating of the turbos, what should I be looking at.
I don't want to coke them up or warp their fins so.....
They're oil cooled so I figure I can watch the oil temp, EGT, or maybe my manifold temp. Oil temp seems reasonable. I have a wideband AFR gauge so that puts off needing an EGT by my understanding.

You should always monitor your oil temp. it is just as important as water temp.
A wideband does not put off the need for EGT's. If you want to moniter temps at the turbos, it's more useful to use EGT's.


A bad idea? If the oil temp is more or less the same all over the system then it shouldn't matter where I put the sensor. I'm unsure about the Gready adapter for the filter neck is there a conflict with the filter? I don't like the idea of putting any holes in anything, let alone the oil pan and that adapter for the drain plug seems dumb; twisting wires every oil change?

if you now agree that the temps the same all over, then why do you want to put it in the turbos so bad? Do what everyone else does. either run a sandwich plate or drill your pan. if you seal it properly you will have ZERO issues.


Obviously I wouldn't put a 5mm sensor into a 6mm line. Does anyone know where I can find lubrication diagrams that give an indication of line size?

If all the turbo lines are small than that'll nix that idea.

Line size is tiny. So that' kills your idea anyways.
.
Old 01-27-09, 10:48 PM
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Originally Posted by efinni23
...... and that adapter for the drain plug seems dumb; twisting wires every oil change?
It's not dumb at all. The wire to the sender is connected with a spade connector. Just slip it on or off to remove the plug. There is no twisting of any wiring.
Old 01-27-09, 11:39 PM
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Originally Posted by adam c
It's not dumb at all. The wire to the sender is connected with a spade connector. Just slip it on or off to remove the plug. There is no twisting of any wiring.
ive seen this done before, but yo uhave to be careful if your car is really low.
Old 02-01-09, 09:45 AM
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Cool guys

I'm convinced. It's goin in the pan. Now to get my car high enough to pull the pan......
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