Does anyone have a guess what adding an H-pipe to the exhaust does to the sound of the exhaust? The engine in question is a 292 that's stock except for .080 overbore,59 distributor with Pertronix and 57 4 barrel intake and 4100 Ford carb.Exhaust manifolds are 56.The exhaust is 2 inch all the way with Thrush mufflers.Will an H-pipe make it louder,quieter,sharper,more mellow or what?Right now it is very loud and has a sharp tone,not the mellow sound a stock Y-block has.

 

Paul,

Boonville,MO

It will take some of the sharp/ harsh sound away. Also adds low end power and HP to the car. I really think most of the mellow sound we heard was caused by the loadamatic distributors and their retarded timing. They sound neat with the crossovers, but not as mellow as you remember.

Frank/Rebop

Bristol, In ( by Elkhart) 

Thanks Frank,

I thought that would probably be the case.I'll try it and see what happens.

 

Paul,

Boonville,MO

Paul,

    Frank is correct on that. The key to doing the H pipe is to put it as close to the motor as possible, thats where is does the most good. When I bent up pipes for a while, that would make quite a difference. A lot of times it was also a cheaper way to improve you overall exhaust system with out having to go with a larget diameter pipe. And it will defintely quite things down.

                         Michael

Michael

Sandy Valley, NV

Thanks Michael,

Does the size of the H-pipe make any difference?I'm thinking of using pipe a little smaller than the exhaust pipe because it would be easier to weld.

 

Paul,

Boonville,MO

There's no "magic formula" that says the pipe has to be a certain size. Close to the original is probably best but anything is better than nothing. All you are really doing is allowing each cylinder to exhaust into two mufflers and an exhaust system with twice the volume. The larger volume helps dissapate the pressure spikes that create the harsh sounds, with less restriction. Actually the X pipe thing seems to be the best of all. My F code et's and MPH's the same with the caps on or off. I run an X pipe and Flowmasters.

Frank/Rebop

Bristol, In ( by Elkhart) 

Thanks for the help Frank.The X-pipe is a lot more involved than I want to get.Just getting a single pipe welded up under the car will be quite a chore for me anymore.Hard to get the bifocals where they need to be,you understand!

 

Paul,

Boonville,MO

Paul:

I've been through the bifocal thing with welding.  It dawned on me one day while arc welding that I was trying to peer through the narrow window in the helmet and could only use the top of my glasses.  A helmet with the large window was a big help.  Also, I bought a pair of drugstore reading glasses and use them instead of the bifocals, er now trifocals.  For gas welding, I use the reading glasses and a full face shield with a tint.  Still not as good as it was 30 years ago without glasses.  And now I find that my eyes don't react to light change very well, I start with the hood up and it's light.  Then put the hood down and it's dark.  Then strike an arc, and it's light again.  Takes me a couple seconds to be able to see where I'm weldiing, and it's usually not where I want to be.

John in Selma, IN

John - "The Hoosier Hurricane"

John,

I know what you mean. I compounded the problem by having Cataract surgery on both eyes. I can see a LOT better but no matter how dark I adjust my shield I can't seem to see the point where the work and arc meet. Now I spot weld and have a friend do the finish work. My welds tend to "drift" around! Chuck in NH

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Y-Guys Paul & John:    You guys are telling you're(our) age with the glasses

                          thing. One, of my sons, helped me correct this "problem"

                          of not being able to see above while working and welding;

                          He said Dad, turn your glasses over!!!  I did and it's worked

                          for me since....   Nothing to do with your H-pipe, Paul.

                                               See Ya'll in Columbus, hopefully

                                                               Bill

Bill

Pelham,Al