 3.2 in a 914, CHT times 2? |
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| NARP74 |
 Oct 29 2022, 09:04 AM
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Senior Member  Group: Members Posts: 1,298 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains  |
The car I bought a little while ago had a 3.2 in it with stock FI and engine mgmt. That includes a CHT for the computer. At the last minute, the selling agent I was buying the car from decided to put in a center console with a CHT gauge. He did not have anything to drive the gauge so they hooked up a real fast solution just to get the gauge running. See the pic...
The problem is that where and how it is located, it pretty much just reads 0 or 350, nothing else. It never reads lower, never cools off. It is right by the exhaust manifold. The 3.2 has a built in CHT. Can I buy a new temp ring and tie it in under the factory CHT on cyl 3 like the factory? Is there room under the plugs on a 3.2 for the CHT ring like it would be hooked up on a 4 cyl? I have not looked into the plug area to see if there is any room. I don't think I can split the output of the factory CHT or it will change the resistance, I am guessing. What have others done to feed a CHT gauge on a 3.2?  |
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| Justinp71 |
Oct 31 2022, 04:34 PM
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Senior Member Group: Members Posts: 1,606 Joined: 11-October 04 From: Sacramento, CA Member No.: 2,922 Region Association: None 
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Is there a benefit to running a CHT and Oil temp on a six? I've always just seen oil temp as the main unit to monitor. Try to keep the oil temp under 210f on the regular, but I think up to 240 is ok.
I guess it would catch if you were running lean but the oil system was still able to keep you cool? |
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| NARP74 |
Oct 31 2022, 04:53 PM
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Senior Member Group: Members Posts: 1,298 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
QUOTE(Justinp71 @ Oct 31 2022, 04:34 PM)  Is there a benefit to running a CHT and Oil temp on a six? I've always just seen oil temp as the main unit to monitor. Try to keep the oil temp under 210f on the regular, but I think up to 240 is ok. I guess it would catch if you were running lean but the oil system was still able to keep you cool? Probably the more is better category. The car came with just about every gauge you can cram in to tight spaces. A few were not hooked up or I doubted their readings like this one, then I started to look into it. Definitely needs a better solution. |
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Posts in this topic
NARP74 3.2 in a 914 Oct 29 2022, 09:04 AM
barefoot Why not put a TC under one of the spark plugs like... Oct 29 2022, 09:14 AM Montreal914 On my /4 I have been using this one for many years... Oct 29 2022, 09:52 AM Krieger Put the sender under the spark plug. It's a t... Oct 29 2022, 10:01 AM emerygt350 You don't want to put it where the computer is... Oct 29 2022, 11:20 AM NARP74 Pretty sure the factory put the original in the bl... Oct 29 2022, 11:33 AM targa72e From the picture that is pretty much no sensor. Lo... Oct 30 2022, 10:55 PM
NARP74
From the picture that is pretty much no sensor. L... Oct 31 2022, 04:51 PM targa72e The standard Temperature sensor for 911 engines is... Nov 1 2022, 11:06 PM |
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