Need a sound/video clip--dual flows with X-over.

I keep hearing that an X-pipe will make it sound like a v6. I have kept true duals all this time so it would NOT sound like that. But now that I am getting close to redoing my exhaust, it is time to consider X-ing it up this time.

Anyone have sound or video clips of a smallblock pushrod ford with dual flows and an X-pipe?

 

that was the set up on my car. i dont think it sounded like anything but a v8. i think compression ration plays alot into sound. my motor had 11.5-1 so it had a deep rumble noise. ive heard fox mustangs with x pipes and flow masters and was not impressed by the sound.

i think long tube headers help too. shortys on the foxes may have something to do with it too

 

New exhaust will be shorties, into super44s, most likely over the axle and dumping out back.

I like the growl of the super44s, but not the drone, so if X-ing it and dumping behind the axles will help, I am fine with that.

Getting old, too, so I don't need it as loud and obnoxious as I used to.

 

X-pipes are over-rated. They will not make a V-8 sound like a six, but the tone will definitely be different from an H-pipe or no crossover.

In Dyno testing, X-pipes don't produce any more power than an H-pipe.

I suggest going with whatever sounds best to your ears.

 

I really like the true dual, no H or X. Gives it that nice lopey sound, engine rocking the car side to side at red lights. BUT, I have to live with that drone, which the X-pipe is supposed to reduce.

I was able to eliminate most of the drone by hanging the pipes from modern rubber hangers and putting a flex-pipe at the front just after the headers. This eliminated the solid pipe-to-frame noise transfer which made the drone horrible. I might still put in an 18" chunk of flex up front just to help minimize that sound transfer.

I made an H-pipe and moved it to various locations, and all it did was take the drone and move it up or down a few RPMs. I think a decent built X-pipe will make those waves cross and cancel reducing it more.

I should be able to get an aggressive super44 sound, but lose the drone and noise at the same time, if I think it through and find a decent installer.

 

Getting rid of the Flowmasters, is where you should start.

 

I like the sound of the Flowmasters.

Damn, dude, you have 15,000 posts!!!

Where have I been these past few months?

 

Pretty sad, considering I was MIA from around 2002, until 2005 or 2006..

 

I thought you got the "drone" problem solved. I'd never run flex pipe. It you have good, rubber-isolated hangers and run full tail-pipes out the back, there really shouldn't be a major drone. If all else fails, I'd go with different mufflers, like turbos or something.

You're gonna find that the X-pipe won't get rid of a drone. It will only change the tone.

 

I just put Flowmaster 40s and an x-pipe on my Maverick with turn downs at the differential. It has a dead stock 302 short block with Hooker 6901 headers, an Edelbrock Performer RPM and Edelbrock 600 cfm carburetor. I can assure you that it does not sound in any way, shape or form like a six cylinder. It just loud. But since it's not a daily driver I'm going to live with it for a time.

Bruce

 

is how I stopped my drone...tried H/X pipe...shorties/longtube headers...

 

Frank, what mufflers did you end up using on your setup?

 

Turbos

"Turbo mufflers" are a variation on OEM style mufflers, but are less restrictive, so they are in the performance category. Turbo mufflers consist primarily of a pair of parallel, perforated dead-end tubes, sometimes with a baffle in between. The exhaust escapes from the holes in the inlet tube, and exits through the holes in the outlet tube. Noise cancellation is by restriction, which slows down the exhaust gasses, and by some noise cancellation as sound waves get reflected among the many inside surfaces.

Chambers

Noise canceling is the principle used in chambered mufflers. A well known manufacturer of chambered mufflers is FlowMaster. (Although they externally resemble "turbo" mufflers, their internal construction is quite a bit different.) Chambered mufflers have a series of compartments that are designed to cause the sound waves to be reflected back on each other. Low frequency sound is much less irritating than high frequency sound and that is why these mufflers are often described as "mellow". Another characteristic of chambered mufflers is interior resonance. The sound within the muffler tends to vibrate the muffler case, turning it into what is, in effect, a speaker. This amplifies the sound inside the car .

 

I don't have a sound clip, but I went with 2.5" pipe with a H crossover into Magnaflow mufflers.. Went over the axles and exit at the bottom of my quarter panels... I can now talk to the person next to me with out yelling, and the drone is gone... They wake up when you get on it, but quiet when just crusing...

 

Cool! Thanks for the feedback!

I dont want to reuse the old super44s since they have been welded on at least 3 times while i experimented with various setups. So i am open to using different mufflers.