01-03-2013, 09:26 PM
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#41 (permalink)
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EcoModding Lurker
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I was researching that Open P1 that got 376.59 miles per gallon in a 1973 and found that they also insulated the whole engine.
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01-03-2013, 09:38 PM
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#42 (permalink)
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That's because of extreme P&G where the engine was off more than it was on.
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01-04-2013, 05:27 AM
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#43 (permalink)
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Master EcoModder
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My CAT 322 Excavator has a insulated valve cover.
I believe they did it for sound deadening though. (clatterpillar)
The hood and engine compartment are also insulated.
If they thought heat would be a problem for the head components, they wouldn't have done it.
Your valve cover looks good. 
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01-05-2013, 03:06 AM
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#44 (permalink)
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It's all about Diesel
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Some heavy-duty Diesels are coming with compound-material valve covers, and occasionally also the oil sump, not just due to the balance of weight reduction, sound deadening and also the thermal properties, to reduce the heat losses. Diesels usually run better at a quite higher temperature, no wonder NOx emissions are their weakness...
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The Following User Says Thank You to cRiPpLe_rOoStEr For This Useful Post:
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02-12-2013, 07:55 PM
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#45 (permalink)
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Definately a Modder!
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I'm going outside right now to look at my ALH TDI engines valve cover to see if this might be easy to implement on it. I will post results if/when I do the mod.
__________________
 2002 VW Jetta TDI 5-speed(completed 01M-5-speed swap at 155K miles) 45 MPG City with the 01M, 5-speed 60+ MPG City. Nokian Entyre Low RR Tires. Experimenting with the "Hybrid" 205 Deg F T-stat:
http://forums.tdiclub.com/showthread...=306799&page=4
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02-15-2013, 06:28 PM
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#46 (permalink)
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It's all about Diesel
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I'm just waiting to see which vehicle I'll get this year. My dad is quite conservative, so he wouldn't want me to get an insulated valve cover into his ride...
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02-17-2013, 12:12 AM
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#47 (permalink)
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Quote:
Originally Posted by brucepick
I have some stiff foam insulation panels. My plan is to fasten them to the underside of hood. Also possibly make a removable "hat" for the valve cover, to go over the built up foam layers it has now.
I got some high temp silicone to USA as an adhesive. Also rivet nuts to attach it to ribs in the hood.
However the winter weather is working against me. I'm not sure if I'll get to these later stages of the project before winter's end.
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So what happens in the summer when temps are 90+ degrees in the shade, and much higher under the hood?
Or do you just rip all this stuff off and start gluing it back on in the fall?  |
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02-17-2013, 06:06 PM
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#48 (permalink)
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OCD Master EcoModder
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Quote:
Originally Posted by XYZ
So what happens in the summer when temps are 90+ degrees in the shade, and much higher under the hood?
Or do you just rip all this stuff off and start gluing it back on in the fall? |
Not sure how this would play out in summer. My plan was to use riv-nuts for the foam panels so removal would be reasonable.
I definitely think you need a digital engine temp display (ScanGauge has it) if you do any of these mods, also if you have a grill block.
That said, with Eco-driving , the problem isn't usually overheating, the concern becomes keeping the engine up to the desired temperature.
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Coast long and prosper.
Driving '00 Honda Insight, acquired Feb 2016.
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02-20-2013, 08:55 PM
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#49 (permalink)
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Definately a Modder!
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My valve cover and oil pan are now insulated. I am performing engine cool down tests now to see if it helps keep more heat in over time. One thing that was immediately noticeable was the lower engine noise. If nothing else is gained, the lower noise is good enough  Thanks to the OP for the idea and material useage!
__________________
2002 VW Jetta TDI 5-speed(completed 01M-5-speed swap at 155K miles) 45 MPG City with the 01M, 5-speed 60+ MPG City. Nokian Entyre Low RR Tires. Experimenting with the "Hybrid" 205 Deg F T-stat:
http://forums.tdiclub.com/showthread...=306799&page=4
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02-21-2013, 01:44 PM
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#50 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by Josh8loop
My valve cover and oil pan are now insulated. I am performing engine cool down tests now to see if it helps keep more heat in over time. One thing that was immediately noticeable was the lower engine noise. If nothing else is gained, the lower noise is good enough Thanks to the OP for the idea and material useage! |
What did you use for the insulation?
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