well since the subject was brought up.

how come the v8 and 12 on the ferrari's don't rumble like a muscle v8.

they have a sweet sound to it, smooth and kind of sounds like gears whining from a distance.

just curious, i always wanted to know why. is it because of the layout of the engine.

anybody knows?

 

mmmmm couple years back i was rolling my friend's clients' Techart 993 Turbo and our buddy AJ was following us in his 355 Spyder which has Tubi....we rolled into the parking structure and the drone of that Ferrari was sooo sweet it almost made me forget i was driving the 700hp car Ferrari + Tubi = heaven

 

that's exactly what i'm trying to get at. not trying to replicate the sound exactly. just want a loud powerful tone that has the same impression as after hearing a ferrari. i want the sound to be somewhat close, but i'm not trying to copy it

 

ehhh... hks seems a little too quiet...?

On the sidenote... anyone want Herbalife Products??? i'm trying to clear them out so I can actually buy my exhaust!!! lol............ looks like it'll take 2 weeks bfore I'll have something installed....

 

It has to do with the angle the cylindars are set at, the stroke of the motor, the valve train layout, the exhaust design, etc. etc.

 

HKS sounds like any other 4 cylinder exhaust. Havent heard an exhaust on a S yet that made me think it wasnt a 4.

 

ruexp67 hit some of it, but there is a VERY big difference between a standard domestic pushrod V8 and a high-revving V8 from an exotic.

Your traditional V8 is a "cross-plane" design. what that means is that the engine fires every 90 degrees, thus the crank has 90 degree angles. This gives a perfectly balanced arragement, but in order to do so, large counterweights must be on the crank to do so. This limits the "revabiltiy" of the engine. Also, since the block is usually 90 degrees, too, the firing order is somewhat jumbled up (I think sometimes that the firing order can sometimes mean that 2 cylinders on the same bank fire in a row). That explains the burble-rumble somewhat.

your exotic V8 has a "flat plane" arrangement. This means that the crankshaft when viewed from the front looks flat; the angles are all 180 degrees apart. Basically, it looks like a 4-cyl crank from the front. There are no counterweigts and thus more "revability." Flat plane V8s have the same 2nd order vibration that I-4s have (a 90 degree V8 has 1.41 times the vibration as a I4 of half the size), but since performance is valued over smoothness, the sacrifice is made. The firing order on these engines is also more like a I4 (firings alternate between banks) and you have more of a raspier, racier sound.

hope that helps!

 

sooooo.......... how to get the "raspier racier" sound......

 

Add four more cylinders

 

ok..... i'll rephrase the question like this... i your opinion, what exhaust sounds the most exotic?