First of all, THANKS for all the help this weekend, I sure have learned a
lot!
If I understand this correctly, a properly constructed (tuned) exhaust
actually pulls negative pressure on the cylinder before the exhaust valve
closes?
If this is the case, then the intake valve could be opened to fill the
cylinder, before the intake stroke - more gas, more power!
Oh well, at least the Cobras look good! (And in the big picture, the bike is
still fast)
Thanks again!
Jerry
-----Original Message-----
From: donald smith [mailto:[EMAIL PROTECTED]]
Sent: Sunday, September 10, 2000 7:30 PM
To: V-MAX TECH LIST
Subject: Re: Cobra exhaust and decreased HP - the reason?
Jerry, it takes more than that. You have to have a system that works,
not just looks good. A system that is designed correctly is free
horsepower. Its like a poor mans supercharger. Using the exhaust gases
to help scavange the intake. Only thing is you want the "wave" to
reverse direction at the right time. Thats why pipe ID, length, ect.
play a big part. Thatys why cobras don't work. Look over function!
Don "Old Man" Smith
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