Question for Branson
1 - 12 of 12 Posts
For a basic Meg $30 as outlined here:
http://www.jrbranson.com/BikeParts/CDR-Parts.htm
Scott, I've never made a full system for sale. But if I did it would probably be in the area of $275-300. Depends on how "full" a system it is....SuperTrapp included? Mounting points specific to a bike? etc. Problem is everyone sets up their bikes different so mounting points change, clearance for pegs, bellypan etc are different. I'd need the bike in the shop to make the system.
I'd love to see pics of yours, is it a 2-1 system? The collector probably takes as much time as the rest of the system combined, I'm very picky about how the pipes come together. As seen here:
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I like the pipes to run almost parallel for a bit then join via nice curved collector pipes. Can't tell from the photo but the collector is made from four pieces of pipe.
JohnnyB
PS. I also set everything up with spring loaded slip fit joints so it can be taken apart or parts replaced seperately.
Edited by - jbranson on Mar 31 2005 8:25:19 PM
http://www.jrbranson.com/BikeParts/CDR-Parts.htm
Scott, I've never made a full system for sale. But if I did it would probably be in the area of $275-300. Depends on how "full" a system it is....SuperTrapp included? Mounting points specific to a bike? etc. Problem is everyone sets up their bikes different so mounting points change, clearance for pegs, bellypan etc are different. I'd need the bike in the shop to make the system.
I'd love to see pics of yours, is it a 2-1 system? The collector probably takes as much time as the rest of the system combined, I'm very picky about how the pipes come together. As seen here:
I like the pipes to run almost parallel for a bit then join via nice curved collector pipes. Can't tell from the photo but the collector is made from four pieces of pipe.
JohnnyB
PS. I also set everything up with spring loaded slip fit joints so it can be taken apart or parts replaced seperately.
Edited by - jbranson on Mar 31 2005 8:25:19 PM
ahhhh. You're up tonight. The bike is in the van, I'll try and take some photos. You're cheap. but you knew that.
Mine looks a lot different than yours, and when I started it up for the guys that made it, I was surprised at the difference it made in sound and punch. It's a lot more freer flowing, i think. I am actually thinking about leaving your pistons out for a while to see what this is like. Or wait till it blows up.
I kept the muffler that was on the bike, as it passed sound check. But now it's alot louder. interesting . . . .
s
Mine looks a lot different than yours, and when I started it up for the guys that made it, I was surprised at the difference it made in sound and punch. It's a lot more freer flowing, i think. I am actually thinking about leaving your pistons out for a while to see what this is like. Or wait till it blows up.
I kept the muffler that was on the bike, as it passed sound check. But now it's alot louder. interesting . . . .
s
I wanted mine off to the side more but was having trouble getting that to work with the primary length I wanted. These bikes respond well to a long slim megaphone too.
Unfortunately dyno work has shown that these bikes don't respond particularly well to any exhaust, either bad or good. Not as far a peak hp goes....there are good gains to be made in the mid-range with the right system.
The system in the photo is 1.25" OD pipe, the new systems will be 1.125" OD. I think the engine might benefit from higher exhaust gas velocity.
What'd you pay for your system if you don't mind me asking? Someday I want to try to bend one up out of Stainless.
No need to change pistons until something breaks really. Although you'd probably pick up a couple of hp. I just did the clearance checks on the Phase3 56mm you have and it all checks out good here, with enough clearance to run a .040" head gasket.
JohnnyB
Unfortunately dyno work has shown that these bikes don't respond particularly well to any exhaust, either bad or good. Not as far a peak hp goes....there are good gains to be made in the mid-range with the right system.
The system in the photo is 1.25" OD pipe, the new systems will be 1.125" OD. I think the engine might benefit from higher exhaust gas velocity.
What'd you pay for your system if you don't mind me asking? Someday I want to try to bend one up out of Stainless.
No need to change pistons until something breaks really. Although you'd probably pick up a couple of hp. I just did the clearance checks on the Phase3 56mm you have and it all checks out good here, with enough clearance to run a .040" head gasket.
JohnnyB
The photo is in the skulls photo section where the head photo used to be. Now don't go trashing my system . . . .
scott
http://photos.groups.yahoo.com/grou...lst?&.dir=/scotts+cb+350+head&.src=gr&.view=t
scott
http://photos.groups.yahoo.com/grou...lst?&.dir=/scotts+cb+350+head&.src=gr&.view=t
Hey, I've seen worse. Looks like it will work to me. Couldn't see how long the meg is. Looks like it may stick out past the rear wheel...if it does tech might give you a hassle about it but I doubt they will do anything.
Certainly have plenty of room between the pipes and engine...don't think they will drag on the left side do you?
I'd think you'd feel a difference on the track. What's that on the breather...one of the ultra trick one way valves?
JohnnyB
Certainly have plenty of room between the pipes and engine...don't think they will drag on the left side do you?
I'd think you'd feel a difference on the track. What's that on the breather...one of the ultra trick one way valves?
JohnnyB
right , , , Left? what's it matter? I dropped it down on the right side, and I'd start scraping the clip on before that puppy would hit the ground. It's actually tucked in pretty well. Guy told me he'd make a whole new exhaust if I touched the pavement with it.
The meg is about 2-3 inches from the end of the back of the tire, so I am safe. I told them that it was a necessity.
I am really surprised at the difference it made. I have been on the bike a lot, lots of laps, and maybe it was jsut that it was the first time on the bike in a few months, but man, it just seemed like a new animal when I ran it in the parking lot. Much stronger in the mid range. But maybe it's cause I lost 10 lbs.
The breather is one of those old time hi-tech PVC valves. Don't really know if it does any good. If I get some $$ soon, I'll take it to the dyno and try it with it on and off. I have not tried it with it off on the track. Don;t fix it if it ain;t broke.
My only concern so far is if the springs will be able to hold the pipe against the head. Then it's back to collars.
PARTY at Kennedy's tomorrow. Maine USCRA guys. Beer. Food. Rain. Bikes.
What did it cost? I ain;t telling. I'll see how well it works, but it was made by one of the most hi-end custom street rod shops on the east coast here in Maine. Unbelievable stuff. I always seem to choose folks that charge a lot . . . But I expect a lot. Beautiful welds, and good construction. I only have to decide if I want to switch the end of the meg to s supertrap to quiet it down. More disks more quiet, right?
Off to Home Despot.
PS. IN re the 350 engine. I am still trying to find the DEFINITIVE answer re O-rings and seals between head and barrels. Seems like an o ring over knock pins, and nothing over the other holes. I start re-assembly tomorrow, so we'll see.
s
The meg is about 2-3 inches from the end of the back of the tire, so I am safe. I told them that it was a necessity.
I am really surprised at the difference it made. I have been on the bike a lot, lots of laps, and maybe it was jsut that it was the first time on the bike in a few months, but man, it just seemed like a new animal when I ran it in the parking lot. Much stronger in the mid range. But maybe it's cause I lost 10 lbs.
The breather is one of those old time hi-tech PVC valves. Don't really know if it does any good. If I get some $$ soon, I'll take it to the dyno and try it with it on and off. I have not tried it with it off on the track. Don;t fix it if it ain;t broke.
My only concern so far is if the springs will be able to hold the pipe against the head. Then it's back to collars.
PARTY at Kennedy's tomorrow. Maine USCRA guys. Beer. Food. Rain. Bikes.
What did it cost? I ain;t telling. I'll see how well it works, but it was made by one of the most hi-end custom street rod shops on the east coast here in Maine. Unbelievable stuff. I always seem to choose folks that charge a lot . . . But I expect a lot. Beautiful welds, and good construction. I only have to decide if I want to switch the end of the meg to s supertrap to quiet it down. More disks more quiet, right?
Off to Home Despot.
PS. IN re the 350 engine. I am still trying to find the DEFINITIVE answer re O-rings and seals between head and barrels. Seems like an o ring over knock pins, and nothing over the other holes. I start re-assembly tomorrow, so we'll see.
s
Scott...if you added 12" then the additional mid range is not your imagination. All the exhausts I've tried do little to enhance peak hp but can do loads for mid range...usually the longer the better.
BTW...trapp disks...more = more noise....fewer = less noise.
I'd start at about six 4" disks, or nine 3" disks. What do you have for a silencer now? Because if it's open meg it will be way too loud by a very large margin. These engines make some serious noise at 10k rpm.
The part of my pipes that I drag is actually the trapp disks...will be raised up for this season and will be 3" disks instead of 4".
Your head pipes will need two springs on each pipe to stay on...couldn't tell from the photo if it has two or not. You don't want to develop a significant leak at the port...it will burn a piston pretty easy that way.
I'll be starting a new system soon for Hiroshi's bike...1.125" OD pipe and I have some new bending dies that are a tighter radius, should make it easier to put things where I want them.
The swarm of 175's should be getting tighter this year!
JohnnyB
BTW...trapp disks...more = more noise....fewer = less noise.
I'd start at about six 4" disks, or nine 3" disks. What do you have for a silencer now? Because if it's open meg it will be way too loud by a very large margin. These engines make some serious noise at 10k rpm.
The part of my pipes that I drag is actually the trapp disks...will be raised up for this season and will be 3" disks instead of 4".
Your head pipes will need two springs on each pipe to stay on...couldn't tell from the photo if it has two or not. You don't want to develop a significant leak at the port...it will burn a piston pretty easy that way.
I'll be starting a new system soon for Hiroshi's bike...1.125" OD pipe and I have some new bending dies that are a tighter radius, should make it easier to put things where I want them.
The swarm of 175's should be getting tighter this year!
JohnnyB
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