Recent content by Charlie Brown

Doug, This is a great explanation. Simplified and easy to understand. Thanks for this.

My water pump pulley is about 1/8 inch out of alignment from the crank pulley - should I worry about this? I could shim water pump pulley out, but fan to rad space is tight. Will 1/8 inch out of alignment cause issues?

It does not matter where the 1/4 wave resonators are placed in the system - before or after mufflers - makes no difference. The added pipe length may differ though. Location is mostly a function of where it fits the best.

It can cancel all drone if you get the right combo. In my 62, I've been able to get 100% elimination, my 64 is at about 90% - that's why I haven't finished the final permanent weld. I need to drive the 64 a bit more to fine tune it. I will get it to 100%.

No. You are trying to reduce drone from 100% to 0% at the same rpm.

You're probably right, although there is no direct exhaust flow through these pipes.

My system WILL work. Cherry bombs or other mufflers MAY work.

I've changed mufflers before, but with limited effect. Seems like each car is different. A person could go through a bunch of mufflers before they find the right fit - and that is expensive.

Doing the internet search thing, it seemed that the lengths were all over the map. Most were between 20 and 40 inches. There are formulas to follow, but there are all sort of variables, so I decided to design my system to be variable via an adjustable sleeve / length of pipe. I test drove the...

Total length is about 30 inches - which includes the "J" bend

Dual exhaust, cross over, 2.5 inch tubing, headers and Magnaflow mufflers. Drone at 1400 - 1800 was irritating. Had a similar issue with my 62 Chrysler. Made these cars no fun to drive. Fixed the Chrysler drone 15 years ago, now it was time to tackle the Polara. 1/4 wave resonator is the key...

After 54 weeks away at the body shop, she's finally back home.

When I built my shop, 1000 sq. ft. foot print with 2 levels - I super insulated the entire build. R60 in the ceiling, R40 in the walls and R20 under the slab. The complete building envelope was covered with used 4 inch styrofoam insulation sourced from commercial roofers. All seams taped. I heat...

The box is fine. It's the pumps that were no good. What are the odds that both rebuilt pumps were toast - or I messed up the rebuilds.

Well, found the problem. It was the pump(s) all along. I had several old pumps lying around and put one on and all is well. Thanks to all who responded.