This may sound stupid...literally. But I have a chevy inline 6 and a thought occured to me, if it would fit what would it sound like with three way headers?? One header for 2 cylinders? May be awesome, may be really dumb. I don't know, what do you guys think?
I wouldnt say dumb at all, ppl have been splitting and running exhaust for each cylander for decades, im sure running the exhaust in a 3some has been done before also, just how would you run the collectors? make them come outa one side of the car
Sounds cool to me, I thought I had seen that before. If my memory serves right, it sounded pretty nice.
I like these, but a bit too pricey for me right now. http://www.classicinlines.com/proddetail.asp?prod=FSP%2D200%2DDOH
I am not sure how three pipes would sound....but split manifolds and twice pipes on a Chevy six with Smitty's may be the sweetest sound of them all!!!
it will be loud ! what we hear is sound pulses...v/8 single exhaust almost no muffler needed...= 8 pulses/ 1 pipe.. 6 cyl split duals kinda raspy, but cool sound...=3 pulses times 2... 4 cyl split dual ugly raspy, maybe what you want...= 2 pulses times 2..... think top fueler with individual pipes, almost painful... also, most turbo motors really do not need mufflers. the pulses are "chopped" up by the turbo impeller and are only slighty noisy at idle..(slow impeller, less chopping effect ) my 2 c..
not quite shure it works that way, i had a 305 car with single 2.5" exhaust and it was louder than my friends 350 with dual 2", and we had the same mufflers.
don't confuse volume with quality of sound. i run a 250 ford six with a 2/4 split and straight pipes, stone stock motor, yeah it's loud, but has the sweetest rap you've ever heard. the 4 cylinder side sounds like a 4 cylinder motor, while the 2 cylinder side goes POP POP POP.
hey I just had a brain fart. Instead of connecting pairs of cylinders together to give even pulses from each exhaust you connect cylinders together that fire one right after the other. Then would it sound like 3 harleys idling side by side?
I just had a idea about this type of setup... why not break from the traditional round tubing and, if you are going to put two cylinders together this way, why not use think wall rectangular tubing? It'd sure be different.
Don't know about the sound difference, re: the above suggestion, but if I wanted to create the lowest "extraction" pressure in the two pipe collector, I'd use adjoining cylinder pairs, if their timing was 360 degrees apart. Then you'd have the velocity of each cylinder's exhaust drawing out the next pulse, from it's neighbor. If you want to create torque, you can run a smaller diameter than the typical single manifold pipe, as the volume of gas is less, and scavenging can be enhanced by upping the velocity.
That's exactly what I did on my '69 fairlane with a 250 6cylinder. Look at the firing pattern and pair 'em up 360 degrees apart. I used 3 cherrybomb glasspacks. My uncle welded them up and it sounded pretty good.
Our Volvo S80 has twin turbos on an inline 6; 3 cylinders to each turbo. I think it works swell... Ben
...that's not so stupid,...how about this ?...since the old 216 Chevy sixes sound so good with split pipes and you can hardly give those things away; I thot it'd be neat to set one up on a test stand in the back corner of my shop and run dual strate pipes off of it down the length of my garage,...which is 46 feet long! I wonder what that would sound like?
pitman has the right idea, you need to group cylinders together to even out the pulses and create power, if you go about this haphazardly it could run worse. I cant offer advice on 6 cyl's youre using but did a lot of research on different exhaust systems using Kawasaki engines in carts, theres a lot to be gained if set up properly.
2-stroke motors are a totally different animal. With a 4-stroke engine, the only 2 factors are diameter of the exhaust tubes and the length. If you tune them (ie, use correct diameter to length proportion) you can group them up any way you like. Dave Vizard has an excellent book on exhaust systems.
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