Quote:
Originally Posted by johngriff
This is worthless. You WILL lose power vs the stock exhaust, unless it is clogged, in which case something would be broken, and should be repaired.
Your Engine is designed and timed for an exhaust system over 10ft.
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His engine was also designed for 205HP but that dosn't mean anything. air flow has more to do with its volume than its actual length. Length is only one dimention in volume. Diameter can be substituted for length as far as flow and pressure goes. Obviously it'll change other variables such in the thermal dynamics and frequency department, but they dont really matter enough.
Loose power, really? Ever ran an open down pipe? Significantly higher top end vs having a oem catback. Same idea, except you can control exactly how much is opened. I see what your saying. The outlet is an over kill... kind of like having a 5" exhaust or something ridiculous. But again, you can control how much the valve opens. It all depends how much air there is going toflow. That means, its only most efficient at one point in the RPM range no matter what... for instance the stock 2.25" ID exhaust provides better low end power, where as if you switch to a 3", you imediately notice you loose that low end but you gain significant top end. As far as our cars are concerned, i would be pretty safe to say that we all would like an increase in the top end.
I had a Q-tec e-cut out and it worked great if you live in an area where exhaust is a big no no. I was getting pulled over about once a week (always Fri-Sat night) with my Apex N1 like 3 years ago until i switched to a cut out with an OEM cat back. Havn't been pulled over since for exhaust.
A friend of mine has a cut out in his 240 also. He has a funny story of him driving down some back roads real fast with the cut out open and passing a cop going in the opposite direction. He noticed the cop turned around to pull him over and he switched the cut out. The cop tries to argue that his stock S14 exhaust is aftermarket but dosnt give him a ticket. He was obviously in confusion after he forced him to rev up lol.
Anyways. I switched back to a ricer can only because my S13 is a drift car and tracks require a muffler. I have my cut out and my down pipe sitting in my garage. If your intersted in buying it, LMK. i'll give ua good deal.