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Old 06-12-2007, 12:23 PM   #11
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Quote:
Originally Posted by willwren
It doesn't matter much though. Think about how little heat the incoming air picks up from a hot TB at WOT air velocities. Thermal transfer is minimal compared to the rest of your internals.
I have a question about that. You mention little heat transfer at WOT, I believe you on that but what about a DD, for example, sitting idling in traffic, surely that has to heat it up more? Or the incoming air will still pick up tiny amount of heat but not a lot compared to other parts?
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Old 06-12-2007, 12:25 PM   #12
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When you're idling in traffic, your engine coolant will actually COOL the TB. So why would you want to block it off or isolate it?
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Old 06-12-2007, 12:27 PM   #13
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Quote:
Originally Posted by BillBoost37
What if we got back on topic?

I have my coolant blocked off from the TB. Drove all winter this way in New England and found no ill effects. Nor do I find any benefits.
Well, there may be ONE potential benefit for an L36 to blocking off coolant to the TB...

If you block it where it enters the UIM / exits the LIM (so that it never gets to the area around the EGR pipe), perhaps you can avoid "drinking the Dex-Cool-Aid" during the inevitable UIM meltdown.

But then again, does HAVING that coolant flow through there help prevent the UIM meltdown?

Opinions?
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Old 06-12-2007, 12:41 PM   #14
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If you consider the EGR temps in close proximity to the composite material of the L36 UIM, one would think that coolant under 200 F might prevent some breakdown. Is this necessary if your UIM is sleeved? Probably not.
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Old 06-12-2007, 02:40 PM   #15
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I think everyone can agree that no matter whether the coolant runs through the TB or not, there is no plausible way or reason to cool the TB from outside heat sources, as tested by willwren. Attempts to block the coolant seem to have no effect other than waste your time.

P.*. if you can afford to fabricate a 3 foot TB spacer, then you can afford to upgrade your supercharger.
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