engine / exhaust note

[dr_jekyll]

just a bit of bordum thinking from me but,

 

apart from the obvious exhaust tuning what determins the engine sound of a car.

 

for instance

 

a ferrari f430 v8 revs to around 8k i belive and has a high pitched truly awsome sound

 

a ls6 can rev to around 8k (with tuning) but has a completely different sound harsher almost more mechanical and pure.

 

so why do different engines with the same configuration that can rev to similar heights have so many different sounds.

[Ian C]

I imagine the Ferrari is a flat plane crank and the LS6 a cross plane crank

[dr_jekyll]

I imagine the Ferrari is a flat plane crank and the LS6 a cross plane crank

 

oh ofcorse.

 

 

 

whats a flat plain crank? and whats a cross plain crank?

[Swampy442]

All to do with degrees of revolution of the cranbk vs firing order. All you ever need to know

 

http://www.projectm71.com/Cross_FlatPlane.htm

[Chris Wilson]

Cam timing makes a big difference as does compression ratio. Induction noise, or lack of also affects overall sound.

[dr_jekyll]

so literally they are lots of factors apart from how much gas is being pushed down some pipe.

 

i was at silverstone on the weekend and those f1 engines sound insane as do the gp2 engines.