55EXX
08-01-2009, 10:10 PM
Who likes the bit of rasp to an exhaust note?
i think it sounds cool in some cases. like a buzzy 4 cyl toy car. i hate the sound of a hollow resonator rasp tho like those cheap cannons on stock exhausts. rasp with balls. deep with some lower notes. like the typical booooooBAAAHH but with rasp with the bahhhh part like its really screaming.
I have rasp in my current exhaust - d series twin cam stock header and cat then 2.25" press bent with only shallow angles to avoid too much pipe squish with 15" hotdog mid mounted and a 8x4x14" rear chambered muffler. the chambered rear gives a very deep note and at about 4500rpm when power kicks in and the rasp emerges. what i want to do is make the system quieter (well quieter at static cruising speeds don't care about heavy on or off throttle) but not lose these sounds characteristics. i want deep sound down low and a bit of rasp over 5k rpm i have got it booked in to get another hotdog put in tuesday but where in the system will be better to put it? straight after the cat/before the other hotdog or just bfore the axle back part. my demo pic black lines current red proposed spot for new resonator
http://img187.imageshack.us/img187/4145/exhaustmb2.png
i have a small understanding of exhaust note tuning but want other peoples educated input not guesses please.
i think it sounds cool in some cases. like a buzzy 4 cyl toy car. i hate the sound of a hollow resonator rasp tho like those cheap cannons on stock exhausts. rasp with balls. deep with some lower notes. like the typical booooooBAAAHH but with rasp with the bahhhh part like its really screaming.
I have rasp in my current exhaust - d series twin cam stock header and cat then 2.25" press bent with only shallow angles to avoid too much pipe squish with 15" hotdog mid mounted and a 8x4x14" rear chambered muffler. the chambered rear gives a very deep note and at about 4500rpm when power kicks in and the rasp emerges. what i want to do is make the system quieter (well quieter at static cruising speeds don't care about heavy on or off throttle) but not lose these sounds characteristics. i want deep sound down low and a bit of rasp over 5k rpm i have got it booked in to get another hotdog put in tuesday but where in the system will be better to put it? straight after the cat/before the other hotdog or just bfore the axle back part. my demo pic black lines current red proposed spot for new resonator
http://img187.imageshack.us/img187/4145/exhaustmb2.png
i have a small understanding of exhaust note tuning but want other peoples educated input not guesses please.