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| emerygt350 |
 Jul 23 2022, 05:24 PM
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#1
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Advanced Member  Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States  |
97 degrees, on the interstate, holding steady at 69, little bit of an incline. Been holding that speed for 20 minutes. Hottest the oil has been in ages but head temps stayed good. Little bit of town driving and oil temp dropped a bit, but not much.
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Replies(1 - 8)
| Rleog |
Jul 23 2022, 06:20 PM
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#2
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Senior Member Group: Members Posts: 608 Joined: 12-October 03 From: Middleton, MA Member No.: 1,239 Region Association: North East States 
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That A/F ratio is at what speed?
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| emerygt350 |
Jul 23 2022, 07:30 PM
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#3
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
70, slight incline, you can see the manifold vacuum is about 12ish. On flat cruise It's around 14.5 to 15. 3200 rpm.
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| rjames |
Jul 23 2022, 11:56 PM
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#4
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest
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QUOTE(emerygt350 @ Jul 23 2022, 06:30 PM)  70, slight incline, you can see the manifold vacuum is about 12ish. On flat cruise It's around 14.5 to 15. 3200 rpm. Isn’t 14.5-15 a bit lean? |
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| emerygt350 |
Jul 24 2022, 06:07 AM
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#5
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Not in a no load situation. People say these engines "like 13" but when under no load I have no fears of 14.7. I have been watching head temps under varying conditions to make sure my light cruise temps are ok and all seems good. Even at 97 degrees out.
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| StarBear |
Jul 24 2022, 06:33 AM
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#6
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Senior Member Group: Members Posts: 1,885 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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@emerygt350 That A/F gauge is most interesting and useful. What is it, how does it get hooked up, and would it work for a very stock 1.8 L-Jet?
I don’t race or do higher speeds; mostly just around town touring and occasional short highway road trips but constantly have temp/humidity idling issues. Thanks! |
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| emerygt350 |
Jul 24 2022, 07:31 AM
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#7
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
That is a autometer analog afr. They are not cheap but quite useful. You have to weld a bung in your exhaust for the wide band O2 sensor and then run the wire forward. When I took my car to the dyno they welded the bung for me as part of the dyno run. I had it put in the collector in the muffler component right after the join to cylinder 3 and 4 header. I didn't want to mess with the heat exchangers or damage the headers.
I find this gauge is a little persnickety so if I had it to do again I would probably go with an aem O2 gauge. I was trying to keep it all analog but the cht gauge ruined that for me. And the glowshift vacuum gauge is silly too. That's the problem when you look for cheap deals on Amazon. |
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| StarBear |
Jul 24 2022, 08:08 AM
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#8
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Senior Member Group: Members Posts: 1,885 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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Thanks! Not simple (for me). (IMG:style_emoticons/default/dry.gif)
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| emerygt350 |
Jul 24 2022, 09:18 AM
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#9
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
QUOTE(StarBear @ Jul 24 2022, 08:08 AM) Inexpensive and simple for a shop to do though. As long as they know not to put it in the header. You don't even need to run it into the dash if you want to only use it for a little while.  |
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