Pics of the 4" Mufflex and panhard relocation kit

[Joe 1320]

Yeah, I think I'll stick with the LM lol

Wuss.

Had a Vette throw me a rev at a stoplight on my way home. He cringed when I let one rip. This does crank out some sound. Not bad when cruising but sure does open up on the throttle.

[Z Ya Later]

Wuss.

Had a Vette throw me a rev at a stoplight on my way home. He cringed when I let one rip. This does crank out some sound. Not bad when cruising but sure does open up on the throttle.

Pfffft to you too lol. I get dropped jaws too, so nah nah! lol

[Kevin - Blown 95 TA]

Whew..... took a 10 mile cruise to work this morning. This mufflex is not for the timid. It puts out some sound. With 3.73s, it's still a bit loud until you get to around 70. By then, it gets out of the rpms that tend to drone a little. My guess is with stock gears it would be a bit much.

So 70 should be considered minimum speed. No prob!

[Joe 1320]

So 70 should be considered minimum speed. No prob!

I agree, but here in Mayberry every Barney Fife is just looking to pull you over. The speed limits are 55 at best and that is only on the major highway (if you could call it that). There is no such thing as an interstate around here. On my 10 mile drive home on friday night, there were six (yes, 6! ) speed traps along the major highway and each one had someone pulled over. There is little leeway, I've even been pulled over for 60 in a 55 but was given a warning.

[Joe 1320]

After a couple of days of daily driving duties, I've found that it's very livable on a daily basis. It does get a bit loud at just over 2K rpms, below and above that it sounds sweet. WOT is awesome. I learned how to drive the car quieter too.

[Z Ya Later]

After a couple of days of daily driving duties, I've found that it's very livable on a daily basis. It does get a bit loud at just over 2K rpms, below and above that it sounds sweet. WOT is awesome. I learned how to drive the car quieter too.

That's what I had to learn when I put the LM on

[Joe 1320]

Originally, that 4" IM pipe was connected to this 4" outlet on my Y-pipe..... combine that with a 3.8" carbon fiber DS, and there wasn't much room left. It helps you understand just how big a 4" IM pipe is. Also give you an idea of the clearance issues with 3" branches on the Y-pipe.

I've been thinking about that. I don't know how you fit the 4" IM along with the driveshaft. I'm really suprised there wasn't some interferance, particularly on a launch.

[Injuneer]

I never got a chance to find out. That's the "brand new" ACPT CF DS that broke while the car was being driven with a "just enough to let it run" tune between the engine shop and a body shop to have the SLP hood put on it (a few days after the picture was taken at Mufflex). The front metal piece that carries the yoke and slider separated from the CF tube under virtually no load at all (no, it didn't hit the exhaust or TA : ). It was replaced 3 days later with a Mark Williams 3" chrome moly DS.

[Kevin - Blown 95 TA]

I agree, but here in Mayberry every Barney Fife is just looking to pull you over. The speed limits are 55 at best and that is only on the major highway (if you could call it that). There is no such thing as an interstate around here. On my 10 mile drive home on friday night, there were six (yes, 6! ) speed traps along the major highway and each one had someone pulled over. There is little leeway, I've even been pulled over for 60 in a 55 but was given a warning.

I believe you. I was just kidding.

[Joe 1320]

I believe you. I was just kidding.

I wish I were kidding.

[Joe 1320]

I don't know if it will actually hurt anything. Just thinking about the way the panhard bar works.

Given the fact that the bar is pivoting around the fixed height pin on the axle end, the amount of body offset is dependant on the angle the bar makes with the ground. If its perfectly horizontal when the car is at rest, moving the body end up or down will produce the same offset, moving the body to the left in both cases. With the bar starting below horizontal, as the body rises, the body moves to the right first, then if the body continues to rise, it will start to move to the left. And when the body drops from normal ride height, it will shift the body to the left at a faster rate.

Wonder why the factory set it up the way they did.... I think on a factory ride height setup, the bar is angled slightly up toward the body end of the bar.

Or maybe its not all that important.... I remember checking the body shift for dropping the body 1.25" and I calculated about a 0.10" movement to the side.

And here is why I really happen to be a fan of an independant rear. Not really for drag racing purposes, but for ultimate handling. No doubt this movement is one reason why our cars require constant course corrections. That's one thing where my Vettes had an obvious advantage when it came to carving precise lines.

[Injuneer]

There's an alternative to the Panhard Rod, called the Watts Linkage. It pivots around the centerline of the rear axle, and has independant horizontal bars to the body and the axle. That keeps the body centered over the axle at all times. But it costs more.

[DeWynter]

There's an alternative to the Panhard Rod, called the Watts Linkage. It pivots around the centerline of the rear axle, and has independant horizontal bars to the body and the axle. That keeps the body centered over the axle at all times. But it costs more.

So does the pivot point in the center attatch to the differential cover?

[Joe 1320]

No, it would have to be tied to the frame.

I'm going to see if I can figure it out but based on just that diagram, I'm not so sure.

[Joe 1320]

It appears to me to eliminate the lateral shift by making the panhard rod sectional, tied to the differential at it's centerline. The shift that would normally occur to the entire differential is transferred to the lever. At least that's my best stab at it. So no, the lever appears to attach to something that would be welded to the differential somewhere and a mount is fabricated just below the cover for the pivot point. I haven't seen that before. Hmmmm..... just might have to get me one of those things.