will no mufflers hurt performance if i have pipes out the back

[rx7speed]

time for some reading


http://www.hondacivicforum.com/m_39893/tm.htm
don't bash it just cause it is from a honda site.

http://www.thirdgen.org/techboard/exhaust/77859-3-true-duals-daily.html?highlight=back+pressure
another one with lots of info.

I might be able to come up with more just give me some time

 

[TMX]

I would say the article on the Honda forums was the best thing I've seen to date honestly. But not only does it apply to exhaust, it also applies to the intake stream, velocity of the intake is extremely important, and that is why larger throttle bodies and larger MAF's can lower torque.

Another article I would like to see/write (but I am such a HORRIBLE writer) is to explain how horsepower means nothing at all in racing physics, besides how much gasoline you are burning off. I know everything about it, I just can't write worth crap to explain it in a language everyone can understand. I even got source code in C++ that I wrote on drag racing physics.