S2000 Under The Hood S2000 Technical and Mechanical discussions.

Upper Radiator Hose Size

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Old 05-22-2004, 06:41 AM
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Default Upper Radiator Hose Size

Does anyone know the ID of the upper radiator hose? I need to order a GReddy water temperature sending adapter and they come in 30, 34, 36, and 38 mm sizes. Which one should I order?
Old 05-22-2004, 10:13 AM
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ttt
Old 05-22-2004, 01:15 PM
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and the sending unit is in the upper radiator hose?
Old 05-22-2004, 03:42 PM
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Well, the bottom ID then. Does it really make that much of a difference? All we are really interested is what the normal temperature range is and when it gets out of that range. Or am I missing something here?
Old 05-22-2004, 04:05 PM
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I think the one that you want is 50mm but I could be wrong...it's been a while since I did it.

I think you are better off tapping into this hose
http://forums.s2ki.com/forums/showthread.p...threadid=208676
for coolant temp. It will save you some $$$$ if you want to remove it later on.
Old 05-22-2004, 04:17 PM
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Can't tap into that hose because I have a Hondata gasket. Maybe I'll tap into the hose that goes to the oil cooler. Ant thoughts on this?
Old 05-22-2004, 04:31 PM
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Originally posted by fperra
Can't tap into that hose because I have a Hondata gasket. Maybe I'll tap into the hose that goes to the oil cooler. Ant thoughts on this?
That location sounds ok but you should double check it with other members

sorry I don't have my car at home with me atm..... otherwise I would have quickly dash out and measure it for you
I am pretty sure it's in the 50's mm (????52mm). I bought the 60mm and it was tooo big so I had to exchanged it a while ago.
Old 05-22-2004, 04:42 PM
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The water temp by the oil cooler will be hotter than the average water temp through-out the rest of the cooling system. That's not the best place to tap for accuracy.
Old 05-22-2004, 06:05 PM
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Originally posted by kane.s2k
The water temp by the oil cooler will be hotter than the average water temp through-out the rest of the cooling system. That's not the best place to tap for accuracy.
I'm thinking the line to the oil cooler, not the line out of the oil cooler.
Old 05-22-2004, 07:43 PM
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I put the sender in the coolant drain plug in the side of the block. No splicing of hoses or adapters required. It also shows block coolant temp versus the temp in the upper hose, which won't be accurate until the thermostat opens.


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