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Old 05-07-2021, 11:35 AM   #26
Homemade WRX
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Anyone move the coolant temp sensor to the cylinder head? Curious on the results if so?
With what goal in mind? Where would you place it?

BTW, if mounted it the heads, the coolant still hasn't cooled the other have of the cylinder bore yet.
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Old 05-07-2021, 01:00 PM   #27
spoolinsti05
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Originally Posted by Homemade WRX View Post
With what goal in mind? Where would you place it?

BTW, if mounted it the heads, the coolant still hasn't cooled the other have of the cylinder bore yet.
I believe it will be a more accurate reading. I'd drill and tap it into the banjo bolt by the turbo on the cylinder head. Where the higher temperature is.
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Old 05-10-2021, 01:36 PM   #28
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I believe it will be a more accurate reading....Where the higher temperature is.
What makes you think you'll get a higher/more accurate reading of coolant temp when mounted in the head? It still won't have the head from the other half of the cylinder bore.

Do you suspect pore flow to certain pockets of the head? If so, I'd look at Dom's cylinder 4 cooling video where he actually tested and logged these temps.
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Old 05-13-2021, 03:43 PM   #29
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Originally Posted by Homemade WRX View Post
What makes you think you'll get a higher/more accurate reading of coolant temp when mounted in the head? It still won't have the head from the other half of the cylinder bore.

Do you suspect pore flow to certain pockets of the head? If so, I'd look at Dom's cylinder 4 cooling video where he actually tested and logged these temps.

Well I have and obviously he tested the higher temps in the area. So the sensor would be best in that location obviously!?.
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Old 05-25-2021, 03:55 AM   #30
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Hi....the admission for my 4.0 (and different styles) has no water section at the back. The head has a channel at one or the flip side, which permits widespread fit (left/right). However, this permits coolant to be at a "impasse" with no stream, making either a "hot pocket" or a region to trap "gas bubbles".

So I keep thinking about whether this plan over long haul permits additional warmth at the back, and adds to the HG issues around here. I would assume you could penetrate and string a few little line areolas and join tubing to course this over to the coolant container. The valley dish gasket as of now has a huge pattern for each.

pcb assembly

Last edited by JethTran; 07-23-2021 at 05:07 PM.
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Old 05-25-2021, 08:25 AM   #31
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Hi....the admission for my 4.0 (and different styles) has no water section at the back. The head has a channel at one or the flip side, which permits widespread fit (left/right). However, this permits coolant to be at a "impasse" with no stream, making either a "hot pocket" or a region to trap "gas bubbles".

So I keep thinking about whether this plan over long haul permits additional warmth at the back, and adds to the HG issues around here. I would assume you could penetrate and string a few little line areolas and join tubing to course this over to the coolant container. The valley dish gasket as of now has a huge pattern for each.

My brain hurt reading this
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