No oil temp sender take off on EDA engine?

[pcoghlan]

I have an EDA supplied engine but for some reason that Ken explained way back last year there is no blank for an oil temperatur sender above the oil filter take-off.

I think from memory it was that the block used didnt have one etc or something.

Anyway, Ken has proposed me sending him my oil coller take-off and he will tap it for a sender unit.

Does it make send for it to go there or better to stick a sender into the sump which someone else suggested?

Paul

[Steve]

you can tap the sump, or tap the oil drain bung,

Steve
GDEuro/LS6/T56 in progress
sgullick@waverider.co.uk

[robert]

The sump isn't going to give you a true temp reading, you need it directly from a feed by the filter.

Some engines did have them, others didn't, just depends on where the engine came from.

Send the take off back to Ken and at least he will do it properly. :tu :tu

[Happy Jim]

>The sump isn't going to give you a true temp reading, you
>need it directly from a feed by the filter.

Would there be any difference ? if so why

Rgds

Jim

I went for the sump plug option as it was easier than taping the remote filter housing.

[kdavies3]

The sump is where the oil is at it's hottest during hard running.
This is because the oil has done it's work of lubricating and cooling the engine and is draining back.
Lighter running the oil will be cooler in the sump due to air flow etc. The gallery is going to give you the true temperature of the oil as it enters the engine to do it's work.
HTH
So bottom line sump or gallery is OK, down to personal choice really.

http://www.woodoouk.eclipse.co.uk/Wales.gif

Kev Davies
Dax, 383ci Chevy Stroker, Tremec TKO
South Wales

[Happy Jim]

Kev,

That makes sense

Many thanks

Jim

[robert]

>The sump is where the oil is at it's hottest during hard
>running.

Not if you are running an oil cooler as it will have passed through the cooler to get back to the sump. The oil cooler will be used on hard running, and hard running is where you need to keep an eye on the oil temp.

>This is because the oil has done it's work of lubricating and
>cooling the engine and is draining back.

Yes, but it is being mixed with lower temperature oil.

>Lighter running the oil will be cooler in the sump due to air
>flow etc. The gallery is going to give you the true
>temperature of the oil as it enters the engine to do it's
>work.

I disagree, you want the oil temp AFTER it has done its work, there will be a high difference in the temp from the galley to the oil cooler take off, you need the end temp as a worst possible case to know when you need to back off to prevent engine damage due to over cooked oil not lubricating anymore.

>HTH
>So bottom line sump or gallery is OK, down to personal choice
>really.
>
>http://www.woodoouk.eclipse.co.uk/Wales.gif
>
>Kev Davies
>Dax, 383ci Chevy Stroker, Tremec TKO
>South Wales

[mikey]

If you are not doing serious competition, do you actually need an oil temperature gauge?
Mike

[kdavies3]

>>The sump is where the oil is at it's hottest during hard
>>running.
>
>Not if you are running an oil cooler as it will have passed
>through the cooler to get back to the sump. The oil cooler
>will be used on hard running, and hard running is where you
>need to keep an eye on the oil temp.

Which as I said is in the sump, the oil is pumped from the sump through the cooler and back into the oil gallery, through the engine and drains back into the sump.
>
>>This is because the oil has done it's work of lubricating
>and
>>cooling the engine and is draining back.
>
>Yes, but it is being mixed with lower temperature oil.

Nope! the hottest oil is in the sump at this point
Take a look at the power curve attached.
>
>>Lighter running the oil will be cooler in the sump due to
>air
>>flow etc. The gallery is going to give you the true
>>temperature of the oil as it enters the engine to do it's
>>work.
>
>I disagree, you want the oil temp AFTER it has done its work,

Yes! in the sump when driving hard.
>there will be a high difference in the temp from the galley to
>the oil cooler take off, you need the end temp as a worst
>possible case to know when you need to back off to prevent
>engine damage due to over cooked oil not lubricating anymore.
>
>>HTH
>>So bottom line sump or gallery is OK, down to personal
>choice
>>really.
>>
>>
http://www.woodoouk.eclipse.co.uk/Wales.gif

Kev Davies
Dax, 383ci Chevy Stroker, Tremec TKO
South Wales

[kdavies3]

The power curve is from a V8 running on one of our dynos, it clearly shows that the oil is hotter in the sump at the top end. At the lower speeds the oil is hotter in the gallery.
The only way you could keep the oil colder in the sump at those speeds and loads is to have an oil cooler the size of a small African country.
(not always practical)

http://www.woodoouk.eclipse.co.uk/Wales.gif

Kev Davies
Dax, 383ci Chevy Stroker, Tremec TKO
South Wales