very curious engine question

[vtechkiller]

I was looking at a few other v6s today everything from BMW to Pontiacs. I noticed all of the engines had a different note and tone, and not from the exhaust. for example you can get a l67 and a ford probe gts 2.5 and 1.8 litter and then put the same exhaust set up and the 3800 will be high and raspy and the gt will be low toned to high tone in a continuous hum with no rasp. Why is that? theoretically wouldn't all v6s have the same low tone or on the flip side all the same high tone? for its the exhaust that makes the rasp by back pressure.

[stealthee]

No. Valve overlap difference, overhead cam vs in block cam, cam difference itself (valve overlap), even the intake set up causes changes in sound.

Hell a SOHC Stealth/3000GT has a mean deep exhaust note, whereas the DOHC NA sounds high pitched, and the DOHC TT sounds completely different. Those are 3 different 3.0 Mitsusibishi V6's that sound nothing alike.

[Toms04compg]

They sound better stock IMO not to mention your not getting any real gains if any with an exhaust system on these. And some reasons stated above is why not all vehicles with 4, 6 or 8 cylinders sound alike.

[Slick2500]

Hell look at the 3100 compared to the 3800. Anything above idle and the 3800 sounds like ass on pretty much any exhaust setup other than stock. Too much drone and too much rasp.

[BillBoost37]

Hell look at the 3100 compared to the 3800. Anything above idle and the 3800 sounds like ass on pretty much any exhaust setup other than stock. Too much drone and too much rasp.

Not with a Bonnie muffler