x-pipe exhaust pros and cons
Discussion
I would like to make me a second performance exhaust system, without cats and mufflers for show purposes. The idea is to have more or less a pipe from manifold to
end. I am thinking of including a XPIPE arrangement, how will that change the sound and performance.
Is there anybody who has done that before ?
thanks
end. I am thinking of including a XPIPE arrangement, how will that change the sound and performance.
Is there anybody who has done that before ?
thanks
It will change the sound but I doubt the X will change performance much and yes it has been done.
Not having any boxes will change the performance. I don't know much about exhaust design but believe our systems are already too short so reducing back pressure even further will make things worse.
Are you sure you want to make it that loud or do you like your ears bleeding?
Steve
Not having any boxes will change the performance. I don't know much about exhaust design but believe our systems are already too short so reducing back pressure even further will make things worse.
Are you sure you want to make it that loud or do you like your ears bleeding?
Steve
IMO the system that most of us have is quite restrictive and thus causes a good amount of back pressure. And please don't start on about an engine needing back pressure... but it will affect the tune and needs to be accounted for. Steve, I and a few others have cut open the boxes to make them repackable, if you do this you will see where most of the restrictions are and why on a video by canam dave you will see the two end sections glowing red!
As for a balance pipe, H pipe, X pipe or whatever the physics suggest that it is the way to go. I implemented an H pipe and it did not seem to make any real difference to noise or performance but then testing the results is pretty difficult anyway as any changes are likely to be small IMO.
As for a balance pipe, H pipe, X pipe or whatever the physics suggest that it is the way to go. I implemented an H pipe and it did not seem to make any real difference to noise or performance but then testing the results is pretty difficult anyway as any changes are likely to be small IMO.
as said this is for special purposes and not intended to be my regular exhaust, just liked the sound when I fired the engine with manifolds only.
I have listened to some straights of Corvettes on youtube and it is not too bad. It is just a try could easily be that it is too loud.
So how will the x-pipe change the sound ?
I have found an ebay guy that is selling flanges but they should match the ones that I have welded on the manifold but the only measure that they have available is 3" which I think refres to the tube diameter which is in my case approx 76 mm. I will have to call the guy and let him measure the outer flange diameter.
I have listened to some straights of Corvettes on youtube and it is not too bad. It is just a try could easily be that it is too loud.
So how will the x-pipe change the sound ?
I have found an ebay guy that is selling flanges but they should match the ones that I have welded on the manifold but the only measure that they have available is 3" which I think refres to the tube diameter which is in my case approx 76 mm. I will have to call the guy and let him measure the outer flange diameter.
I have some LS flanges if you are serious about having a go yourself, they are for a 2" primary?? I could get them re done for 1 7/8ths if that is more to your liking?? As Phil says the standard size(1 3/4) is way too restrictive!!
Pm me if you are interested
I will put up some pictures of our 2" system later today, it should work great with the ProCharger and powerful LS engined cars. It will be extensively tested in the next few weeks.
Pm me if you are interested
I will put up some pictures of our 2" system later today, it should work great with the ProCharger and powerful LS engined cars. It will be extensively tested in the next few weeks.
spatz said:
I would like to make me a second performance exhaust system, without cats and mufflers for show purposes. The idea is to have more or less a pipe from manifold to
end. I am thinking of including a XPIPE arrangement, how will that change the sound and performance.
Is there anybody who has done that before ?
thanks
Clive did this on his car, put a balance pipe in a removed the mufflers... it was quite increadibly loud.end. I am thinking of including a XPIPE arrangement, how will that change the sound and performance.
Is there anybody who has done that before ?
thanks
I had a nex exhaust made for mine with a balance chamber, I also lengthed the exhaust and had straight through silencers but this was to reduce noise and increase flow... worked very well in both respects.
I have a 3" system, that is the pipe diameter, so i need flanges and V-band clamps for that size, and yes I really want to do it, already found a company
that can weld me the x-pipe, the rest of the exhaust we could do ourselves, maybe we also do the x-pipe using 4 90 degree bends and weld them together and cut them in the angle we need in the car. Maybe easiest.
that can weld me the x-pipe, the rest of the exhaust we could do ourselves, maybe we also do the x-pipe using 4 90 degree bends and weld them together and cut them in the angle we need in the car. Maybe easiest.
ok talked to a tuner, he says the idea of the x-pipe it not so much the sound but the vaccum effect that when one cylinder bank is pushing the air out it is also sucking air from the other cylinder bank. Some engine have more power using this, especially the ones with big displacements.
I want to give it a try and see. looking for flanges 3" with approx 96 mm outer diameter and v-band clamps.
I want to give it a try and see. looking for flanges 3" with approx 96 mm outer diameter and v-band clamps.
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