PorKen

Not exactly subtle, but not as loud as I thought. The mandrel bent close 90 probably cuts down the flow a bit.

Full throttle is sweet music - the sound winding up through each gear is tremendous.

I haven't weighed it, but it's got to be ~20lbs lighter than my 'quiet' rear section.

I'm going to try making an adjustable backpressure valve on the end of this pipe. My initial thought is to have a steel flap, covering most of the pipe ID, with an external spring holding it closed. I may put in a choke cable, in place of the fader switch, to adjust the spring tension of the exhaust valve from inside the car.

SharkSkin

Ken, you know that large hole in the floor behind the seat with the rubber plug that we don't talk about too much? Why don't you run the pipe up through there, run it vertical behind the seat, then have a mandrel bend to direct it out the window behind the headrest? Then you'll REALLY be able to hear it....

Something like this:



All kidding aside, I bet that really does sound sweet! You need to find a long narrow tunnel free of traffic so you can experience max BWWWWAAAAHHHH !

hacker-pschorr

Porken - What else is there? Cat's, factory manifolds, any mufflers?

I'm running open after the Cat on my car, only at 3/4 - full throttle is it loud at all.

PorKen

SharkSkin,

It should come out of a lexan rear quarter window, and it needs one of those truck flappy doors on top!

When I drive next to a barrier it sounds schweet. Even lifting off the throttle sounds cool, with the crackling and burbling.
...

Hacker-Pschorr,

The front section is factory manifolds with a 3" Flowmaster Delta 50 where the cat would be. It gets 'quieter' or more pleasant sounding, with higher rpms.(Here's the whole system.)

Normally I can go a week or so before I put the 3 resonnator section back on, because the noise gets to me. But it's nice to have when I feel like "makin' some noise, y'all".

Since I sync'ed my cams, it is a lot quieter at low rpms, I suppose with more even pulses for the muffler to work with, or just less pedal required to move. When I was building my system a year ago, and had just the muffler, it was unbearably loud (resonnance) accelerating slowly from a dead stop.

SharkSkin

Yah I know, but I was having a hard time finding one of those to photoshop in...

goliver

I think that looks pretty cool. Bet the sound is fun to play with as well.


Regards,

Randy V

What do you gain by exiting forward of the rear wheel with a flow-restricting 90* turn versus eliminating the final stage muffler and exiting straight out the rear?

Jim bailey - 928 International

Looks and sounds like a AAR Cuda from the 1970s including when you drive over speed bumps and it scrapes ...........

bcdavis

What do you gain?

What do you "gain" with a convertible?
Chassis stiffness? No...
Aerodynamics? No...

It's coolness!

That's what he gains...

Something that he thinks looks cool...

It's not all about performance.
It can be about looks, sound, etc...

Drewster67

I like the look. I'm planning on doing my track shark in the same manner except true duals. 40 Series Flowmasters - no cats - 3" pipe

Randy V

Uh, BC - I was asking Ken, not his designated alternate....

bcdavis

I think the "Triceratip" speaks for itself...

GoRideSno

Ken,
I think you should put the "triceratip" on the side exhaust but have it spin somehow. It may start a new trend like "spinners"
Andy K

bcdavis

Dual spinning triceratips on each side!

PorKen

Randy,

bcdavis is correct. Besides the weight, it's mainly for looks; I'm a closet 'Cuda fan, truth be told.

I'm making the backpressure dealy-flopper, so it's a test platform.

I'm also imagining what could be put in the large empty spot back there.
...

Drewster67,

I ran across these cool SpinTechs while researching:

click pic for site
...

Andy, bcdavis,

click pic for thread: Exhaust Tip