Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: Jacques Chitte who wrote (58270)	1/18/2001 1:24:17 PM
From: nasdaqian	Read Replies (2) \| Respond to of 71178

I guess your right about the total heat. I just think it's quite likely that the gas is very dry especially after having gone past the cat converter. Plus I don't think there's any byproduct of combustion that hydrates (slightly technical term used in the hopes of intimidating. The actual appropriateness of term secondary to its ability to obfuscate and impress, though futile in this case) the exhaust gas. So, even if the exhaust system is capable of cooling the gas by the time it gets to your muffler, all that dry, warm air passing by over the course of 60 miles (much less, I would think) would dehumidify the internal surfaces. But I gotta admit, I don't know it and I can't prove it. But now I'm outta gas. I'd be very curious to know how the even more efficient Honda Insight treats its exhaust tract. That's the hybrid, right? Aren't they rated around 80mpg and isn't it true that the engine doesn't run much of the time? I would think it would be somewhat hard on the internals of the exhaust tract, all that short term heating in between complete cooling. I want/need a hybrid.

To: Jacques Chitte who wrote (58270)	1/18/2001 3:52:14 PM
From: nihil	Read Replies (1) \| Respond to of 71178

short trips lead to the condensation of water vapor throughout the exhaust system. As time passes more and posterior (downstream) regions of the exhaust system heat up. First the downpipes get hot, the the head heats up, then the converter gets very hot all of this forces combustion moisture out the the system. A baffled muffler will heat up hot enough to evaporate condensates from previous short trips which had been busy corroding the muffler. Finally, the tail pipe heats up and the entire system is purged of new moisture and all past moisture. You will notice that an idling car will drip rusty water out of the tailpipe. This is what kills exhaust systems. You will rust out 4 exhaust systems and still have a sound pipe from the Cat Con after several years.