I had my local muffler shop replace the suitcase with straight pipes today. They charged me $100, tax included. It's not as loud as I expected, but I like it. I kept the resonators because I like the tips.
I will reply back later if I can find a good way to show what I did on some sort of schematics...Randycat99- Where exactly are these holes supposed to be drilled? A friend of mine is interested, and I might be later.
How about a pic showing this for our members?This is pretty much expected (surprisingly not as loud as you expected), given those who have done the suitcase-only delete.
One thing you might consider trying (that could actually make it "just right") is to drill a moderate size hole on the inside face of each resonator. That will reduce the frequency-notch effect of the resonator (it's primary purpose). That means more of that good sound that is coming down the pipe (now that the suitcase is gone) will actually get to the tailpipe w/o being canceled out.
I'm experimenting with this myself (albeit, w/o the suitcase delete). I project you might consider trying a 1/4" size hole on the resonators (I went with a 1/8" size hole and experienced a subtle change in sound that was far from drastic, if that concerns you). Actually, I would still recommend the 1/8" hole at this location, since the whole point of doing it has more to do with introducing a resistive damping element, rather than size of the hole (which will shift the tuning). So in that case, you want a smallish hole that will get a little "winded". If it flows freely, then you won't get the damping.
If you would rather not fiddle with the resonator tuning, directly, you might consider drilling a hole on the rear face of the resonator about 1-2" over from where the final exhaust outlet is. The idea here is to provide an orifice (stop giggling there in the back) where a bit of direct sound can escape (which should be quite potent, given your resonator delete) before it gets gutted by the resonator interaction. Again, 1/4" hole might be a good starting point (I went with two 1/8" holes on each resonator).
Suitcase is the big squarish muffler just past the x pipe like you said. Thewhen you guys mean suitcase,do you mean the muffler after the x pipe or the ones in the back where the tips are connected to?does anyone know if it will be smog legal?
Glad you posted this!! I was wondering what would happen if this was tried. I run my 70 R/T through resonators only, and it has a great sound. Tell me, how does it sound at idle?I had my local muffler shop replace the suitcase with straight pipes today. They charged me $100, tax included. It's not as loud as I expected, but I like it. I kept the resonators because I like the tips.