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| The Conversation Pit This is where EVERYTHING else goes. No subject is too mundane. How's the weather in your area? Did your kid cut his first tooth? Really, what do you think about the President? And don't get me started on Cummins and Duramaxes. Have at it! |
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#1
Wed, December 16th, 2009, 09:46 PM
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Superchips 1705
Read that if you have a bigger downpipe it will hurt the performance. Designed to work well with cai and cat back. Why would this be? BTW if anyone wants one, I can make you a heck of a deal!
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#2
Wed, December 16th, 2009, 09:58 PM
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I'd like it. How much?
As far as bigger downpipes go, it all has to do with the flow dynamics in the pipe. Gasses expand as they cool and the transition to a larger downpipe actually causes the exhaust to cool too quickly and lose momentum in the pipe. This forces the engine to work harder to force exhaust out of the pipe as well as through the turbocharger so there is more restriction at low engine speeds and cooler EGT. Is it something you'll feel in your "seat of the pants dyno"? Not likely.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
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