This is the perfect example of a thread that needs to have the subject
changed!!! I keep clicking on it hoping to find out more information on my
Image Editing System only to find more about noise (I know, I'm guilty,
too!)
Tina
On Tue, Jun 18, 2013 at 12:50 PM, Ken Norton <ken@xxxxxxxxxxx> wrote:
> > Even the track announcer made a comment as to how painfully
> > loud they were....
>
> Yeah, essentially they are a two-stroke engine and the amount of
> continued combustion that occured in the exhaust pipes is unreal. It's
> actually important to have a little bit of back-pressure with those
> engines if you want any torque. If all you are after is horsepower,
> then open those pipes wide open. But an open and free exhaust knocks
> out the entire bottom end of the power range. When a lost the exhaust
> behind the second cat, I also lost about 1500 RPM worth of power
> range, but gained 10-15 hp on the top end.
>
> Yup, those engines are pretty much the equivalent to a huge
> displacement two-stroke. Sound and fury.
>
>
>
> --
> Ken Norton
> ken@xxxxxxxxxxx
> http://www.zone-10.com
> --
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>
>
--
Tina Manley
http://tina-manley.artistwebsites.com
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