Questions about SHORTY Headers
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2nd Gear Member
Joined: Nov 2005
Posts: 182
From:
Questions about SHORTY Headers
Are shorty headers any better than stock manifold?
Will the outlet positions of shorty headers come anywhere close to mating up with standard H pipe (factory) setups? If not, how far off, and how much effort to get it all hooked up and working?
Will the outlet positions of shorty headers come anywhere close to mating up with standard H pipe (factory) setups? If not, how far off, and how much effort to get it all hooked up and working?
3rd Gear Member
Joined: Feb 2005
Posts: 576
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RE: Questions about SHORTY Headers
ORIGINAL: ebluekeys
Are shorty headers any better than stock manifold?
Are shorty headers any better than stock manifold?
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: Questions about SHORTY Headers
I had long tube headers but as the car kept getting lower to the ground the flange began to drag on stuff like the road. So I went to shorty headers so i could tuck the pipes up nice and close to the frame. I couldnt tell a difference between the two. Noting drags on the ground now however. Probably 3hp difference between the two if that much.
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Joined: Oct 2004
Posts: 17,565
From:
RE: Questions about SHORTY Headers
ORIGINAL: Gun Jam
I had long tube headers but as the car kept getting lower to the ground the flange began to drag on stuff like the road. So I went to shorty headers so i could tuck the pipes up nice and close to the frame. I couldnt tell a difference between the two. Noting drags on the ground now however. Probably 3hp difference between the two if that much.
Gun
I had long tube headers but as the car kept getting lower to the ground the flange began to drag on stuff like the road. So I went to shorty headers so i could tuck the pipes up nice and close to the frame. I couldnt tell a difference between the two. Noting drags on the ground now however. Probably 3hp difference between the two if that much.
Gun
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Joined: May 2006
Posts: 1,845
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RE: Questions about SHORTY Headers
ya i have been told the same thing but guess what you won't really notice it cause shorties flow better but the longtube give you the Scavenge effect which is the diff on stock heads really but shorties will do better with ported heads comapred to a manifold so thats where the diff is
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: Questions about SHORTY Headers
-Soaring
Im not sure I totally understand your question but ill give it a shot. We will use the Crankshaft as a reference point.
I have the ceramic coated headman shortys the left side is not identical to the right side. the right side exit of the header (where the primary pipe couples to) is almost parallel to the crankshaft. the left side intersects the crankshaft line at about 45 degress. it must do this to clear the steering gear and transmission. In both cases the coupling where the primary pipe meets header is above the crankshaft more so on the right side. Of course this requires a trip to the muffler shop. These headers fit up well to the heads no problems.
Im not sure if dyno results would show = performance to stock exhaust manifold. I would GUESS the shorty headers would show more hp (3 or so) improvement simply because the exhaust gas makes a nice sweeping smooth bend on the way out. With stock it makes a 90 degree bend slams into a wall then gets forced out. As BHP increases I would bet headers start to work better. If you have 90BHP then headers prolly wont do you any good.
I hope this is was you were asking.
Gun
Im not sure I totally understand your question but ill give it a shot. We will use the Crankshaft as a reference point.
I have the ceramic coated headman shortys the left side is not identical to the right side. the right side exit of the header (where the primary pipe couples to) is almost parallel to the crankshaft. the left side intersects the crankshaft line at about 45 degress. it must do this to clear the steering gear and transmission. In both cases the coupling where the primary pipe meets header is above the crankshaft more so on the right side. Of course this requires a trip to the muffler shop. These headers fit up well to the heads no problems.
Im not sure if dyno results would show = performance to stock exhaust manifold. I would GUESS the shorty headers would show more hp (3 or so) improvement simply because the exhaust gas makes a nice sweeping smooth bend on the way out. With stock it makes a 90 degree bend slams into a wall then gets forced out. As BHP increases I would bet headers start to work better. If you have 90BHP then headers prolly wont do you any good.
I hope this is was you were asking.
Gun
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: Questions about SHORTY Headers
ORIGINAL: Gun Jam
-Soaring
Im not sure I totally understand your question but ill give it a shot. We will use the Crankshaft as a reference point.
I have the ceramic coated headman shortys the left side is not identical to the right side. the right side exit of the header (where the primary pipe couples to) is almost parallel to the crankshaft. the left side intersects the crankshaft line at about 45 degress. it must do this to clear the steering gear and transmission. In both cases the coupling where the primary pipe meets header is above the crankshaft more so on the right side. Of course this requires a trip to the muffler shop. These headers fit up well to the heads no problems.
Im not sure if dyno results would show = performance to stock exhaust manifold. I would GUESS the shorty headers would show more hp (3 or so) improvement simply because the exhaust gas makes a nice sweeping smooth bend on the way out. With stock it makes a 90 degree bend slams into a wall then gets forced out. As BHP increases I would bet headers start to work better. If you have 90BHP then headers prolly wont do you any good.
I hope this is was you were asking.
Gun
-Soaring
Im not sure I totally understand your question but ill give it a shot. We will use the Crankshaft as a reference point.
I have the ceramic coated headman shortys the left side is not identical to the right side. the right side exit of the header (where the primary pipe couples to) is almost parallel to the crankshaft. the left side intersects the crankshaft line at about 45 degress. it must do this to clear the steering gear and transmission. In both cases the coupling where the primary pipe meets header is above the crankshaft more so on the right side. Of course this requires a trip to the muffler shop. These headers fit up well to the heads no problems.
Im not sure if dyno results would show = performance to stock exhaust manifold. I would GUESS the shorty headers would show more hp (3 or so) improvement simply because the exhaust gas makes a nice sweeping smooth bend on the way out. With stock it makes a 90 degree bend slams into a wall then gets forced out. As BHP increases I would bet headers start to work better. If you have 90BHP then headers prolly wont do you any good.
I hope this is was you were asking.
Gun
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: Questions about SHORTY Headers
Not sure about the JBA never seen one. I was told that shorty headers as well as long tube get their advantage over stock by the smooth bends, I was also told that shortys do not work quite as well as the long tube because the header pipes are different lengths on the shortys. If you look, all the pipes on the long tubes should be the same length and that’s the advantage over the short ones. Or so they say, umm sounds plausible to me.
Gun
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