question on 2 into 1 pipe.
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Intermediate
Joined: Apr 2009
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From: sl,ut
question on 2 into 1 pipe.
so i have a basic idea on how they were. (drawing off pulses etc...) i saw a setup that i really liked. but i'm not sure it will give the improvement of normal 2 into 1. i'm going to try and post a pic. if anyone knows a lot about em. and could shed anylight on how to keep this look but improve it. (if this setup wouldnt work?) thatd be awesome.
Road Warrior
Joined: Aug 2006
Posts: 1,327
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From: S.E.PA
so i have a basic idea on how they were. (drawing off pulses etc...) i saw a setup that i really liked. but i'm not sure it will give the improvement of normal 2 into 1. i'm going to try and post a pic. if anyone knows a lot about em. and could shed anylight on how to keep this look but improve it. (if this setup wouldnt work?) thatd be awesome.
cj
LSR 2-1 Shovelhead
http://www.rbracing-rsr.com/lsr21/shovelhead.html
Shovels react to 2-1 collectors very well. The RB or the SuperTrapp, with the right cam, heads and carb can net you 20-25 horses, maybe a little more. A stocker with a great collector and a good tune can get you up to 10 horses, no other changes needed.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
Road Warrior
Joined: Aug 2006
Posts: 1,327
Likes: 0
From: S.E.PA
Shovels react to 2-1 collectors very well. The RB or the SuperTrapp, with the right cam, heads and carb can net you 20-25 horses, maybe a little more. A stocker with a great collector and a good tune can get you up to 10 horses, no other changes needed.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
"Al"
Shovels react to 2-1 collectors very well. The RB or the SuperTrapp, with the right cam, heads and carb can net you 20-25 horses, maybe a little more. A stocker with a great collector and a good tune can get you up to 10 horses, no other changes needed.
I would have loved to get a set of RB 2 into 1, but since I added a baker 6 speed I had to get the rear pipe modified had to have cut and add 2 inches of new pipe (under the heat shield) to clear the bottom side of the trans, (if I got the kicker option on the baker I would have most likely add 6 inches of new pipe : - ))) so glad I didnt get the kicker it just stuck out so freaking much !!!
So I called RB up got this older guy on the phone told him about my new set up engine and tranny, I offer to send him my set of pipes as a go buy to set up his set, he could care less, well you have to call back and talk to one (I think he said) sons, I called back never talk to his sons !
That is the only set of 2 into 1 I would even consider !!!!
Btw the only set that would fit my FXS was a set of Cycle Shack for a FL-FLH '66 to '69, this set instead of leaving the front cyl between the front engine and down the inside of the right front frame down tube, it went out a bit and around the front to clear the front mounted S&S oil filter mounted in front of the front jug !
Take care Al
cj
Road Master
Joined: Jul 2008
Posts: 907
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From: Ontario
Shovels react to 2-1 collectors very well. The RB or the SuperTrapp, with the right cam, heads and carb can net you 20-25 horses, maybe a little more. A stocker with a great collector and a good tune can get you up to 10 horses, no other changes needed.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
Sorry lowlife, your pipes are unique, but they do nothing for you. Length, diameter, and component compatability is everything.
Last edited by Zacharia_11; May 8, 2009 at 11:44 AM. Reason: Just making it English...
Thread Starter
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Intermediate
Joined: Apr 2009
Posts: 46
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From: sl,ut
thanks for all the input guys. sorry its been so long. ive been slammed at work. my main idea was something like dead reckonings. but couldnt find any pics. so would that type of set up be a waste of time and money??
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Joined: Apr 2009
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From: Daytona Beach
2 into 1
My opinion and an overlooked option is to build a 2 into one! On my wife's Evo, I took the stock dresser pipes and cut-em off where they crack at the stock 2 into 1 connection. Then took one of many stock Kerker mufflers I have, cut the nose off, cut it to about 8 inches long and welded the nose to the cutoff collector. Added a turnout end cap, and a set of torque cones, and some purple exhaust wrap.
It runs great, sounds terrific, and cost me almost nothing. Not the best picture.
andygears
It runs great, sounds terrific, and cost me almost nothing. Not the best picture.
andygears
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Thread Starter
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Intermediate
Joined: Apr 2009
Posts: 46
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From: sl,ut
My opinion and an overlooked option is to build a 2 into one! On my wife's Evo, I took the stock dresser pipes and cut-em off where they crack at the stock 2 into 1 connection. Then took one of many stock Kerker mufflers I have, cut the nose off, cut it to about 8 inches long and welded the nose to the cutoff collector. Added a turnout end cap, and a set of torque cones, and some purple exhaust wrap.
It runs great, sounds terrific, and cost me almost nothing. Not the best picture.
andygears
It runs great, sounds terrific, and cost me almost nothing. Not the best picture.
andygears
andy, thats my plan, build an exhaust. on the collector pipe or the headers either 1. do i need baffles to creat the right boost? i've heard some say yes, and others say that the pulses creat their own baffles.
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Joined: Apr 2009
Posts: 59
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From: Daytona Beach
Depending on the motor, cam, compression, condition, you may need baffles but I would definitly put a set of them power cones in first. To folks who haven't tried them..1)they work, probably can't see it on a dyno, like this: ridin along wind up a gear, close throttle, shift gear, open throttle. Your motor reacts like this: wind up rpms, fuel mix moves thru intake, combustion chamber, out exhaust, close throttle to shift, velocity thru motor drops to zero, open throttle again, motor has to suck mixture thru carb, push it down exhaust and get things flowing again. With the "cones" in there, mixture keeps flowing thru the cone venturi and sucks a vacume into the combustion chamber and intake, when you just crack the throttle open, mixture flows immediately, sucked in by the vacume. Like I said you probably can't see it on a dyno but in real world driving they work sweet. They create a little backpressure and with 2 into 1 exhaust help the uneven firing create a scavenge effect. I've found 2 into 1's can get away, noise wise, without baffles cause usually there is a quieter spot in the RPM's where you can sneak by the Man with the exhaust pulses kinda canceling one another. But in cold climates, cold air moving up a short exhaust is not good for your exhaust valve and may need a baffle for that reason. Look at the funny car draggers, they always cap the exhaust after a run.
andygears
andygears