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Unread 11-01-2009, 09:18 PM   #1
TJ4JT
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Backpressure normal on stock exhaust?

2004 TJ Sport, 242ci I6, 5sp man... The RPM drop after a rev is a little slow for my liking. I would think that the quicker it is able to drop back to idle would be better. I feel like I'm not getting as much power to the wheels or trans b/c of the back-pressure. I'm not a mechanic, that's why I'm asking. Am I right? Do most people upgrade the exhaust, or is it something that most of the time is overlooked?

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Unread 11-01-2009, 09:34 PM   #2
Max-Q
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Some backpressure on a normally aspirated engine is needed. The speed the engine revs up and down would be more related to the weight of the flywheel rather than the engine's backpressure.
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Unread 11-01-2009, 10:07 PM   #3
TJ4JT
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Hey, Thank you for the insight. On an unrelated note, how do you like the rhinoliner? How much was it to install? How long was the cure time, if any? Do you still use your floor mats? I want to do it, but it's kind of semi-permanent, and I don't want to do something I'll regret...
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Unread 11-01-2009, 10:32 PM   #4
dbbd1
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You really would not like my Taco. An '07 6-speed manual but the computer artificially keeps the RPM's hanging between shifts for some emissions reason. (yeah, if that really makes sense- burn more gas=lower emissions)
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Unread 11-01-2009, 10:39 PM   #5
Dmcastino
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You aren't going to see any real gains in power from exhaust mods if thats what you are asking. Oh and I have the Rhino liner too, and you definitely won't regret it! The only thing I regret is not doing it myself with U-POL Raptor. I paid $650 to have mine done and that included me tearing out the interior, where as I could have done it myself with the other kit for about $130 and I'm 100% sure my application would have looked more professional, which was unfortunately the entire reason I paid to have it done in the first place. Oh and to answer your other questions, I don't use floormats, or drain plugs for that matter and it was cure a day or two after they finished spraying, smell lasted a few days after that
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Unread 11-02-2009, 02:36 AM   #6
wushaw
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Quote:
Originally Posted by TJ4JT View Post
Hey, Thank you for the insight. On an unrelated note, how do you like the rhinoliner? How much was it to install? How long was the cure time, if any? Do you still use your floor mats? I want to do it, but it's kind of semi-permanent, and I don't want to do something I'll regret...
You must not be married
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