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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 12-17-2007, 10:03 AM   #31
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Let me know your impressions, whoever tries this next. Post them here. Getting a very fine, tight wrinkle pattern is actually difficult. I'm hoping my recipe on page 1 works for all you guys. I came up with that by trial and error.

Even the nosedrive and SC on my car right now don't perfectly match. They're VERY close though.
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Old 12-17-2007, 10:19 AM   #32
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Well according to your two charts...I don't see a huge difference between the rate of cooling between the OEM and Wrinkle over OEM. Maybe in the first few minutes, it seems to drop off steeper, but ends up at the same temp (if not lower) at the same time as the wrinkle?

Also...you showed the picture of someone having used this wrinkle finish on a v-twin'* cooling fins...do you know what the maximum temperature that this finish can handle before separating? (chipping) Say for use over, or in place of ceramic coating on EMs? Possible better heat dissipation? Or is the trick to EMs to insulate them to keep the heat out of the engine bay...? I might be confusing my desired effects.
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Old 12-17-2007, 10:23 AM   #33
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One thing I'm wondering mainly is why we don't use thermal compound adhesive and processor heatsinks on our superchargers. That would be really interesting with a hood scoop. Has anyone done this?
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Old 12-17-2007, 10:36 AM   #34
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WJ, this stuff won't last on EM'*. Don't even try.

And my 'lab test' was without any natural airflow. Static. The stuff doesn't really come into it'* own until there'* a slight air movement over it. That was to prove that the coating itself wouldn't insulate. In real world tests, it'* FAR more capable than those two graphs show, simply because there'* always a slight breeze, forward motion, or fan override involved.

Radomir, why don't you just graft a quad-core processor in place of the SC? Nobody'* done that before.
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Old 12-17-2007, 10:37 AM   #35
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Quote:
Originally Posted by willwren
Radomir, why don't you just graft a quad-core processor in place of the SC? Nobody'* done that before.
You have no idea how cool I think that would be. But really. Heatsinks.
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Old 12-17-2007, 10:45 AM   #36
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You go ahead and butcher your supercharger and tell me what you think.


I've made several observations (but collected no data) between my two cars.

1. Both are running Gen3'*.
2. Both are running similar intakes.
3. The 93 typically ran a 2.3" pulley in the summer.
4. The 95 ran a 2.5" pulley in the summer. (should run cooler).

At idle without fan override, the 93 is typically 5-15 degrees cooler than the 95. Granted, I run a 160 degree thermostat in the 93 vs. a 180 in the 95, but I also run a 'slower' water pump in the 93. The 93 will STILL idle to the same temp as the 95.

(coolant temp actually isn't that great of a factor on the SC)

At idle with fan override, that temp differential climbs to 10-20 degrees difference.

After driving (typical around-town stuff) the average difference is typically 15-25 degrees difference. At the dragstrip, with or without ice, the cooldown period is FAR less between them, or the black SC compared to any other at WCBF. In fact, with ice involved, the black SC excels even more. Regardless of the fact that it SHOULD be creating more heat than any other SC out there. The temps are roughly the same (rather than hotter) than other SC'* at the end of a run, but cools down at a remarkably quicker rate.
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Old 12-17-2007, 12:14 PM   #37
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Quote:
Originally Posted by wjcollier07
...Say for use over, or in place of ceramic coating on EMs? Possible better heat dissipation? Or is the trick to EMs to insulate them to keep the heat out of the engine bay...? I might be confusing my desired effects.
A little OT but, the idea with the exhaust is to keep heat (energy) in; this keeps the gas velocity higher for better scavenging and flow, lower under hood temps are a side benefit.
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Old 12-17-2007, 12:39 PM   #38
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Quote:
Originally Posted by radomirthegreat
One thing I'm wondering mainly is why we don't use thermal compound adhesive and processor heatsinks on our superchargers. That would be really interesting with a hood scoop. Has anyone done this?
If you think about it, thats exactly what this wrinkle finish is...it is adding about twice the surface area to expose more to the air...basically the same exact concept of a heatsink...but of course, a modern processor heat sink has about 20 times the surface area of the top of the processor. And when I was asking about the OE coating being a good heat conductor...I had Arctic Silver 5 on the brain

If you could find a way to make the surface of the blower FLAT, filling in the spaces between the cooling fins with a sutable material able to transfer heat just as well as the blower'* metal (is it aluminum or iron?), and then bond a load of short fin heatsinks to the whole thing, you'd have one SERIOUSLY cool supercharger. especially if you modified the hood with a good size scoop for cooling. I'm not sure you'd see supercharger temps anywhere above 125-150F.

But could a problem arise from keeping one component of the engine this cool while its mating surface is significantly hotter?

Or maybe just intercooling would be less effort.

Also...question back for the experts...what else can you put this on besides aluminum valve covers?
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Old 12-18-2007, 05:34 AM   #39
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The superchargers already have fins on them. They're just there to increase surface area. So, why can't we put little heatsinks all over?
http://www.compumusic.com/p32591.htm
I think that one has the boron hold it firm, just like Miracle Gro has boron hold plant walls. Might you tell me what holds that paint so firm?
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Old 12-19-2007, 08:47 PM   #40
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Will, Nice to see such an old school solution. I was seriously expecting some hi-tech nugget type finish.

Have you put any work into seeing how cool you can run the */C housing w/o cooling the blower vanes (somehow) before clearance issue begin to arise? or wouldn't it be an issue?
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