Vipera Russelli
Enthusiast
- Joined
- Mar 9, 2004
- Posts
- 679
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My side sills have always run hot until very recently. When the exhaust was stock, you could of course actually burn your bare leg getting out. After replacing the headers (Heffner), cats (RT-steel) and cat-backs (Corsa, no cross-over), the side sill temperature went WAY down, however, the sills were still hot enough to be uncomfortable against your bare leg and remained worth avoiding when existing the car. Recently, however, I’ve noticed that the sills are merely warm (as in lukewarm), and not hot at all, even after extended hard driving. It’s a HUGE difference. The car sounds and feels like it’s still running awesome, and all the gages are the same as before. So does anyone have any ideal what might have caused this dramatic change?
Admittedly the outside temperature has probably dropped 10 to 15 degrees since I last remember the side sills being really hot, but it’s certainly not cold here in VA and I just can’t imagine that a mere 10 to 15 drop in outside temperatures could make such a big difference on how hot my side sills are getting. Am I wrong on this?
Maybe I’m running leaner (did my computer make a change on its own?), or maybe my cats have slowly burned up (although there was never a period where my exhaust sounded or felt plugged). I did have my cooling fan module replaced recently, but the engine temperature didn’t change enough to register on the gages.
Any thoughts?
Admittedly the outside temperature has probably dropped 10 to 15 degrees since I last remember the side sills being really hot, but it’s certainly not cold here in VA and I just can’t imagine that a mere 10 to 15 drop in outside temperatures could make such a big difference on how hot my side sills are getting. Am I wrong on this?
Maybe I’m running leaner (did my computer make a change on its own?), or maybe my cats have slowly burned up (although there was never a period where my exhaust sounded or felt plugged). I did have my cooling fan module replaced recently, but the engine temperature didn’t change enough to register on the gages.
Any thoughts?
Would my computer change the fuel/air mixture significatly all on its own without modifications to the car? It's been over a year since I've had any modifications done affecting airflow, and the side sill temperature has only changed noticeably in the last month or so.
