After reading instruction for the muffler mod I was wondering why you knocked out the rivets instead of drilling them out is there a specific reason for this?
You can drill them, you can also drill the pipes instead of the muffler mod as shown.
I drilled 2 holes opposite of each other, Jim drill one and made a video.
http://www.youtube.com/watch?v=NA5u9odI7Tg&feature=related
The thread is here, my photo has been axed or something I can take another if needed but where Jim drilled his I have another just opposite of that.
http://www.magnaownersoftexas.com/forums/index.php?topic=2590.0
I drilled two holes about 7/16 inch I like it, I have owned several VW in my lifetime and it diffently doesn't sound like a VW.
My 97 has two large holes drill with new end plates, much louder than my other, sounds good though.
I can shoot pics if needed.
Thanks Terry for the picture offer I am fairly sure I did mine the same way was only refering to the VW sound because of a remark the Greg had made in another thread.
Quote from: Jerry G Turner on May 08, 2009, 03:56:50 PM
Thanks Terry for the picture offer I am fairly sure I did mine the same way was only refering to the VW sound because of a remark the Greg had made in another thread.
That's what his new project will sound like! :lol:
drilled two holes in each pipe on mine this past monday - Still need to file it down and paint to make it look nice - however the the bike is louder and has a nice tone - granted I would like it to be louder - the louder the better for me - however with it being A. free and B. not having to re-jet the carbs its a fine alternative...
Quote from: knrhodes on May 27, 2009, 09:38:25 PM
drilled two holes in each pipe on mine this past monday - Still need to file it down and paint to make it look nice - however the the bike is louder and has a nice tone - granted I would like it to be louder - the louder the better for me - however with it being A. free and B. not having to re-jet the carbs its a fine alternative...
I can take a photo on another louder mod if you want, sounds great!
If Terry is talking about the two larger holes in the back plate it sounds really good.
Quote from: TLRam1 on May 27, 2009, 11:25:21 PM
Quote from: knrhodes on May 27, 2009, 09:38:25 PM
drilled two holes in each pipe on mine this past monday - Still need to file it down and paint to make it look nice - however the the bike is louder and has a nice tone - granted I would like it to be louder - the louder the better for me - however with it being A. free and B. not having to re-jet the carbs its a fine alternative...
I can take a photo on another louder mod if you want, sounds great!
Sure Terry - I'd like another louder option - would this mod involve having to redo the carbs?
A stock Magna will benefit from shimming the carb needles.... ANY back pressure relief you do (drilling the endplates will relieve backpressure) will only lean out the carb settings and thus creating a need for adjustments.
Quote from: Greg Cothern on May 28, 2009, 04:57:40 PM
A stock Magna will benefit from shimming the carb needles.... ANY back pressure relief you do (drilling the endplates will relieve backpressure) will only lean out the carb settings and thus creating a need for adjustments.
Yes, although nothing has been does to this bike, yet. I do have all the jets and shims but not the time.
Quote from: Magnum Magna on May 28, 2009, 01:56:35 AM
If Terry is talking about the two larger holes in the back plate it sounds really good.
Yep, Robert has heard them, sounds Real good! I will shoot photos this evening.
Quote from: Greg Cothern on May 28, 2009, 04:57:40 PM
A stock Magna will benefit from shimming the carb needles.... ANY back pressure relief you do (drilling the endplates will relieve backpressure) will only lean out the carb settings and thus creating a need for adjustments.
I see the walk through on the tips and tricks - but having the time to do it and do it correct worries me - and the local shop wanted $600 to do it - thats just nuts! I am not the most mechanically inclinde so it makes me nrvous thinking about doing it myself - I have a 02? goldwing that I need to put the carbs back in so I can sell it and dont even have the time to do that... :( (at least I get to ride to work!!)
Next wrench session I hold make sure you here and we will get your hands slightly dirty and your Magna running like it should be!
Quote from: Greg Cothern on May 28, 2009, 07:10:04 PM
Next wrench session I hold make sure you here and we will get your hands slightly dirty and your Magna running like it should be!
thanks!! I'll keep my eyes open for it and will do my best to make it!
First is the 7/16" drilled holes W/O the muffler mod. IMO sounds better than the muffler mod W/O being too loud, this is subjective to each individual. Yes, they can be drilled larger that bit is what I had on hand.
With this mod if you can drill a hole, you're good to go! No removing endcaps, no rivet gun needed, removing rivets, or re-riveting the end caps.
(http://i203.photobucket.com/albums/aa214/TLRam1/Motorcycles/Magnas/2001%20Magna/DSCN8598.jpg)
Next are a total end cap refabed with holes drilled 1, 1 1/8, 1 ΒΌ depending whether the metal underneath was cut to the size of the end cap hole. I have not pulled a cap but looks like they ran into difficult times possibly enlarging the hole several times.
There is a piece of muffler cloth between the end cap and the pipe to prevent rattles. The metal is shiny unpainted, when I have time I could clean up the cuts for a better look.
This sounds great, I like these the best, nice louder bite more like the Magna Muscle cruiser should sound like. What I do like about this mod is when on the road the sound levels off where as the Vance & Hines are loud on the road regardless if riding at a steady speed as far as communicating with someone. I do need more time since my V & H have not been installed on my 01 Magna to confirm. Anyway, This sounds Good!
(http://i203.photobucket.com/albums/aa214/TLRam1/Motorcycles/Magnas/97%20Magna/DSCN8604.jpg)
Nice - I have already done the two hole - 1/2 (I need to sand it down and paint to make it look pretty) - it louder but l would like it to be even louder - might look into the two larger holes - but curious wouldnt one larger hole be the same?
Quote from: knrhodes on May 29, 2009, 09:53:00 AM
Nice - I have already done the two hole - 1/2 (I need to sand it down and paint to make it look pretty) - it louder but l would like it to be even louder - might look into the two larger holes - but curious wouldnt one larger hole be the same?
I PMed you this but will post up for everyone.
Way back when I had the baffles pulled I didn't care for the sound and that was one big hole, seemed to have a hollow tinny sound maybe due to no back pressure.
I would have to pull them again for comparison sake, that's jut what I remember.
Terry,
Does it matter where the holes are located? You have yours at 1 and 7. Would it make any difference if they were at 2 and 8, or 10 and 4?
BA
Quote from: BA on May 30, 2009, 01:15:17 AM
Terry,
Does it matter where the holes are located? You have yours at 1 and 7. Would it make any difference if they were at 2 and 8, or 10 and 4?
BA
BA, I don't see that making a difference at all.
This is AWESOME!!!. I'm doing this tonight. I have been contemplating the muffler mod, but was scared it would sound tinny. The youtube video convinced me. Plus I'm thinking the holes, once drilled, could also be tapped and thread in some short bolts to turn the volume up or down. Not permanent and somewhat adjustable.
Quote from: gbrueggemann on June 03, 2009, 02:01:44 PM
This is AWESOME!!!. I'm doing this tonight. I have been contemplating the muffler mod, but was scared it would sound tinny. The youtube video convinced me. Plus I'm thinking the holes, once drilled, could also be tapped and thread in some short bolts to turn the volume up or down. Not permanent and somewhat adjustable.
Report back.
Quote
Report back.
I found the following product to attempt to use instead of tapping the holes.... http://www.hardwareandotherstuff.com/servlet/the-62/CHROME-7-fdsh-16-dsh-1-fdsh-2-INCH-(11.1MM-dsh-12.7MM)/Detail (http://www.hardwareandotherstuff.com/servlet/the-62/CHROME-7-fdsh-16-dsh-1-fdsh-2-INCH-(11.1MM-dsh-12.7MM)/Detail)
I looked at my local ace hardware for some bolts that could be fit into tapped holes and couldn't find anything that wouldn't look absolutely ridiculous. Then I found the link above.
However, after performing the mod, first drilling 1 hole per pipe and testing then following up with another hole, I love the effect so much I have absolutely no desire to plug one or both of the holes. In fact I have had to try my best to refrain from drilling more holes.
One of my fears about this job was it being really loud running down the road and that it would drive me nuts if I had to put up with it for an all day 400+ mile ride. After riding to work this morning with the mod I cannot even notice a difference at highway speeds so I have no plans to even try the plugs above, but thought someone here might.
Greg C drilled a bunch of small holes and did not like the sound, just be careful. The two I have heard are the two I have with varying sized holes. If you are close, by sometime you can listen to my other one.
It is a nice easy mod that sounds better to me than the other Magna exhaust mod.
You guys are going to make me look for stock mufflers and do the Mod. I know mine has aftermarket, but not sure what kind. A little to loud for my liking.
I am smack in the middle of Missouri, but would love to meet up with some other magna fans.
And the reason I have never done the other muffler mod is because I was scared it would sound like crap. I have never heard one though so I was uncertain. This one it was the youtube video that convinced me.
..what I really, really want to do is have custom exhaust made. My idea is a 4 into 2. take the front two cylinders together and the back two and bring them both out the right side. Then mount brake light and license plate on left side of the swing arm and clean up the back end. I have no idea how much this would cost, but I was hoping to sell some of my spare magna parts and start a custom exhaust fund and then go get some quotes.
Quote from: Dlcarrales on June 05, 2009, 03:04:33 PM
You guys are going to make me look for stock mufflers and do the Mod. I know mine has aftermarket, but not sure what kind. A little to loud for my liking.
I'll trade ya.
I'll trade ya
Maybe I find a way to get a sound clip of them for you, to see how different the sound would be. Wonder how much the shipping would set us back?
Quote from: Dlcarrales on June 05, 2009, 03:13:40 PM
I'll trade ya
Maybe I find a way to get a sound clip of them for you, to see how different the sound would be. Wonder how much the shipping would set us back?
This is a UPS quote guessing 25 pounds total (I'm guessing that they are slip-ons). I also would like to get you some sound clips if I could. I'd hate to have you get them and be disappointed.
UPS Ground By End of Day,
Tuesday
June 9, 2009 18.01 USD*
Ship
Days In Transit: 2 Billable Weight:
25.0 lbs.
im in michigan and i shipped my stock mufflers to wisconson and the shipping was about $45 i think. i could have broken it into two shipments, might have saved some money that way, but they (ups anyways) goes on the size of the box. the mufflers cost me just about as much as shipping a corbin seat due to the size of the box, and not the weight.
Terry,
I did the mod last night after work and road home, then did the round trip to work today. I like the aggressive sound as you accelerate, not much difference while cruising down the highway, but decelerating I get quite a bit of popping from the exhaust (more so from the left side). It seams a little raspy but not obnoxious, and they are no where near as loud as Chad's V&H pipes.
BA
Quote from: BA on June 05, 2009, 08:26:07 PM
Terry,
I did the mod last night after work and road home, then did the round trip to work today. I like the aggressive sound as you accelerate, not much difference while cruising down the highway, but decelerating I get quite a bit of popping from the exhaust (more so from the left side). It seams a little raspy but not obnoxious, and they are no where near as loud as Chad's V&H pipes.
BA
Great BA, I like the popping personally, you and Chad can get that out easy though. I also get more from the left side it seems, for one reason.... you hear the popping more now rather than stock because the stock are quiet and you might need to adjust your carbs.
I thought you and Chad did some work on them, a little popping is fine just not your big backfires. You have one of the guys in the know in MI. so you are in good hands.
Yes, popping is more on the left side of the bike. Another guy on the ride had done the original muffler mod and removed the rear baffle, etc., but I really didn't care for it. It just didn't sound right accelerating and quite a bit more popping.
I plan to sync the carbs then use the exhaust gas analyzer at school to set the mixture and run it on the dyno to check how the main jets/shims are. That'll be the best opportunity to get it right.
Quote from: knrhodes on May 29, 2009, 09:53:00 AM
Nice - I have already done the two hole - 1/2 (I need to sand it down and paint to make it look pretty) - it louder but l would like it to be even louder - might look into the two larger holes - but curious wouldnt one larger hole be the same?
Who has done one hole, then gone to two holes?
I presently have one and would like to go to two.. I would not mind it being even a bit louder. It would seem at some point it would might actually get quieter with less restriction and more places to escape..
Also back pressure changes.. I added 1 shim, but wonder if I might need to go to two if I add another shim.. Any opinions??
Does anyone know what the baffle looks like inside?? Would it be possible to weld a HSS drill to a rod and send it up the baffle and drill a single hole in the far end?? (assuming it is tapered and welded at the far end..) None of the Tips and tricks photos show the baffle..
Here are pics of the rear plate removed, the rear plate has a resonator which in this pic has been cut off. The actual baffles are farther up in the muffler as you can see in the next two pics, they are welded in.
(http://i110.photobucket.com/albums/n99/oldman_05/IMG_2471.jpg)
(http://i110.photobucket.com/albums/n99/oldman_05/IMG_2470.jpg)
(http://i110.photobucket.com/albums/n99/oldman_05/IMG_2469.jpg)
Thanx Charles.. So, do you think it would be possible to drill through the resonator with the method I suggested? (No picture looking into the resonator)
Anybody have an opinion on if that will give the exhaust a tinnier sound?
It should relieve backpressure, No?
In the top pic the middle section is the resonator and all three pieces are already open, You can start by cutting off the short piece in front of the resonator (far right in pic) if that's not loud enough, you can cut the resonator next, each cut it'll get a little louder. If you cut the pieces at a slight angle (so you can realign) the process is reversable with a little welding. The next step would be to enlarge the center hole in the end plate, after that Greg's suggestion to drill holes in the actual baffles with a long bit. Don't know if anyone has tried this yet, maybe someone else can answer that question. I stopped with removing the resonator, to me it sounds better than stock but not as good as Vance and Hines and a whole lot cheaper. It's my wife's bike now and she wants it louder, but rather than drill the baffles (which I consider erreversable) think I'm going to bolt on four Sportster shorty's. I can pick up pull-offs for about $20.00 a piece. Takes a little modifying but not bad.
Charles....about the Sportster pull offs....Are you referring to the stock mufflers and what year models?..I want to quieten mine down...It came with drag pipes that really "SUCK"...I want something to modify that has baffles...Thanks in advance......
Not sure what year models are alike. As far as being quieter I'm not sure they would be, even on the 883's each muffler is built to handle 440 cc's so 750cc's divided between four is probably not going to have much if any back pressure. I ran across these pull offs while looking for a muffler mod for a 650 Savage (thumper). The one I bought was straight thru, looked like a chrome glass pack. I will check for ones with baffles , but the one we put on the Savage was good looking but loud, Anyway I'll get more info and pics on the sporty mufflers first chance I get..
Are you interested in trading or selling your Drag pipes and what kind are they, wouldn't mind having a set of the straight style drag pipes , don't much care for the megaphone shaped ones.
Charles...Thanks for the info on the muffs....I would not sell the straight pipes to anyone...They would need to be re chromed...I will gladly give them to you when I get something else...I just got me shop built and I'm a small engine repair shop...lawnmowers,weed-eaters,chainsaws..ect..This is the busy time of year so it will probably be winter before I get to mod my bike....But you do have first grab on pipes if you want them...Thanks for your help...I believe I will build 4 into 2 when I make the mod..