Re: Eliminating Hot Spot?

Posted by Mike On 2011/5/26 11:58:34
Quote:
Why do you think cars have had thermostats to keep the temp UP to 160/180/195 degrees?? Without them they would 140 or so. That's because they run more efficiently (MPG) at higher temps and contaminants including water are "boiled out" of the crankcase oil.


Ok, now what i said:

Quote:

I'm not trying to run a 100 degree Packard, i want it to run smooth and the right heat range helps do that. However, we're not using the car as the factory intended in all weather types and temp, and i would attempt slight changes and modifications IF they provided more reliability for MY normal usage.


So you basically re-stated what i said, then called me wrong.


You CAN'T do enough to keep the car running cool, in it's correct range. I DON'T want one of the old cars that pukes coolant while idling all over town or that you can't idle into a car show with while the gauge creeps up. If that WAS acceptable then, it's NOT to me now, and i WOULD attempt changes that would prevent that IF they had a chance of working. I don't have that issue now, so i don't believe i need to work on the hot spot.


As for carb icing, i DO understand how it works. You may be confused and think i'm running a packard powered plane and not a 23rd series?

There would, for sure, would be enough heat if the exhaust manifold was still connected metal to metal, and with the intake tied to the 1000lb 200 degree cast iron block. You couldn't avoid it. That's not taking into account that the air intake is at the top of the hood, where the hottest temp air is in an engine bay design that pretty much produces a houshold oven in air temps.

Now, if i was planning on using a separated exhaust manifold like you described above, and the intake wasn't as conductive to block heat with insulators or something, and i removed the hood, i'd be buying that the carb could ice.

The xmas tree comment was meant to convey that, even in the coldest temps, it's just too damn hot under the hood and with all that metal bolted to it for carb icing to be LIKELY or something to worry about.


However, unless we test those theories, we'll not really KNOW, so we'll have to agree to disagree on that point as i don't have the time or desire to test it. Some of your ideas have lead me away from the hotspot as an issue, and i intend to let it go the way it is.

I'm sorry if i've offended you, and i know you do have a vast amount of knowledge or experience. I was merely stating that i didn't think the long shot that was carb icing could be an issue in this setup, even with the metal block off plate in place, and i didn't agree with your conclusion that i was too dumb to work on a simple WGD carb setup.

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