2nd Gen Non-Engine/Transmission Different Exhaust Idea

[keimmmo]

You fellows who have had the resonator off your trucks, is the core directional? As in, can it be run backwards and still work? I am thinking about a modification on my '01.



I am an old muffler shop owner. Now, I would be the first to agree that gas and diesel motors flow differently and what works on one doesn't always work on the other. But, on a gas motor, the more volumn you can put between the manifold and the muffler, the better it will flow/perform.



Here is my idea. If it is practicle to turn the resonator backwards, move it to the rear and hook the small end to the tail pipe, eliminating the factory muffler. Fill the space between the factory down pipe and the resonator with 4 in. If the resonator is backwards, the now inlet will already be 4 in. This would not be difficult to build!



I guess my real question is if it would make the drone potential better or worse? I really do not see it as having a major performance difference over leaving the resonator in the stock position. What do you all think?

 

[RT66DOC]

Don't know about that but along the same lines I do know that the farther back the muffler is the deeper/lower the sound because that placement tends to cancel or diminish high frequency sound waves. A muffler placed way forward has the opposite effect, cancelling low frequencies and allowing annoying high frequencies thru. I read that in "Race Tuning MGBs" (OK everybody, stop laughing) and tried it on the MGB I had at the time. It worked - turned a nasty, raspy little sound into something nice. No Jag for sure (anybody ever hear an E-Type DOHC Six running flat out thru the gears?), but not bad for an MG. Don't know if the principle differs depending on how many cylinders but don't see how that could matter much.



I've thought more than once about fabbing up a system for the truck which would be straight 4" pipe from the turbo all the way back except for a straight thru muffler on the end with a chrome tip on the end of the muffler. Maybe not enough room back there next to the spare to fit it in. Would be interesting to hear what type sound that would produce.