|
|
Post by headcase on Apr 17, 2011 21:55:48 GMT -5
I have the stocker mufflers on my 79 and they're still in decent enough shape to last a few more seasons, although the outer casing on one has a small rust hole and a few bubbles coming from the inside. Someone drilled 6 amateur holes in the end plates and they sounded like a** (I covered them back up with fabbed aluminum plates) returning to the original single outlet, and patched the rust hole. I'm not out to impress with noise, and I do respect the neighbors, so I like that it's pretty quiet at idle. The bike is plenty quick for me as it is, but I wouldn't mind some bigger sounding nads under heavy throttle. Loud and raspy is a nono. Semi-quiet and raspy is more what I'm going for.
I saw a Youtube vid recently of a Guzzi Centauro that has about the exact sound I'm looking for. (Please don't ban me for liking a GOOOOZEEE!) I know this is a totally different bike with roughly twice the engine, so it sounds pretty narsty, but are there any mufflers out there that would give the same mellow idle and muted roar at WOT? I don't know what kind they are, and since it's a Guzzi they're probably too pricey for my meager means.
Almost like an automotive equivalent of a mellow turbo muffler at idle, and a full boogie Series 40 Flowmaster under power. Does Mike's offer anything with this tone? Thanks in advance - Dan
|
|
|
|
Post by Tom Graham on Apr 17, 2011 22:55:17 GMT -5
I suppose you have the special but if you have the standard mufflers you are in luck. There is a plate welded onto the outlet tube. This is inside about ten inches from the outlet. Knock this plate off so the exhaust can come through. The engine will be semi quiet at idle and sound off when the throttle is opened but not neighbor disturbing loud. The sound is deep and gives a muted throaty sound. It's not raspy or sharp but deep and mellow. The sound of an engine is important to me and I give the modified stock standard muffler an A.
Tom Graham
|
|
|
|
Post by headcase on Apr 18, 2011 19:16:24 GMT -5
Special it is, there's no getting in there unless I start cutting. Eventually they'll be replaced anyways from rusting out, so I figured I'd start asking about this thing now before it happens. Then again, if I do cut the mufflers off at the factory weld point, is it still possible to install aftermarkets to the headpipes? They're the original double-wall tubes, and seem to be in pretty solid shape still. I've seen/read all the posts on how to do that...adapters, sizes, press-fit etc. Just a matter of slicing them in the right spot I would think.
|
|
|
|
Post by richard on Apr 18, 2011 21:40:12 GMT -5
I have reverse cones on mine. I really like them. The only problem is the seal between the head pipe and the mufflers it one of those compressible sleeves which isn’t a perfect seal but, the sound I like.
This is a little out of tune but you get the idea. there's a couple more videos of the bike running that I posted too.
|
|
|
|
Post by headcase on Apr 19, 2011 17:36:48 GMT -5
Certainly a purrrty one that is. Sounds as good as it looks too. I may take a short vid of mine at some point, but who really wants to see another stock looking Special, right? Maybe I'll post it if it doesn't embarrass me too bad by misbehaving. If I can fab up a camera mount that doesn't shake the guts out of the cam, and make a mic cover to shield it from wind noise then I'll do a backroad blast video and be in business. The cones just might work, thanks Richard  |
|
|
|
Post by richard on Apr 19, 2011 21:27:11 GMT -5
|
|
|
|
Post by headcase on Apr 20, 2011 17:14:07 GMT -5
I tend towards stock or near-stock appearing machines, bikes or cars. I don't mind throwing mechanical upgrades and improvements at them as long as everything looks relatively original (I rarely cut or customize except for the occasional bracket etc). Mine came with black plastic Honda rear signals, aftermarket seat cover and HD front pegs, so I'll leave those. Other than that, the only non-stock things I've added are a shield, soft bag set, and a smallish NOS 80's crash bar and it looks fine for what I intend to use it for. All that comes off if I ever want to go 100% purist someday. It looks almost respectable now, compared to the crust bunny that showed up on my lawn 2 years ago...except for the dents in the tank. Maybe once it's all back together again I'll cave in and post a handful of pics for an Esteemed Elder Guru critique.
|
|
|
|
Post by headcase on Jan 26, 2012 23:11:02 GMT -5
Fart-Can update: A few new rust holes have popped up and the exhaust is starting to sound a bit ratty now. Flipping through the library of street rod mags at the shop, I saw an ad for Porter mufflers and heard an audible 'dinggg' in my head. Could have been I was too close to the microwave when it was in use, but I digress. I like that they're made in the U.S., available in stainless, also available with angled ins and outs, and can be had as small as 1-3/4". I talked to a tech there and basically what they are is a heavy duty, high quality cherry bomb/glasspack muffler. At roughly $150 a piece they're not cheap but about the same as new stock replacements that are chromed steel (meaning they will be toast eventually as well.) For about the same price I can do the Porters and be done for the life of the bike. My question to those of you less unexperienced individuals out there is...have any of you adapted similar automotive mufflers to their bike? I plan to fab an end cap for each muffler with a smallish exit similar to the stockers to keep the idle racket down, and still use a crossover pipe underneath. I'm thinking this would do the trick and give me the sound I'm looking for, but I've been told a few times that I think too much. What say ye? Website----> www.ravenworksllc.com/browse.cfm/porter-mufflers/2,33.html Dan |
|
