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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Dyna Muffler /cgi-bin/YaBB.pl?num=1390924332 Message started by pgambr on 01/28/14 at 07:52:12 |
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Title: Dyna Muffler Post by pgambr on 01/28/14 at 07:52:12 I'm looking to do the dyna muffler conversion. For anyone who may have done it do you know specifically which muffler to look for? Over the years they have made a number of different dyna models. Thanks and best regards. |
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Title: Re: Dyna Muffler Post by Dave on 01/28/14 at 08:44:51 The Technical Section and the Table of Contents with links can be very useful and informative. http://suzukisavage.com/cgi-bin/YaBB.pl?num=1298689417 |
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Title: Re: Dyna Muffler Post by seedubs1 on 01/28/14 at 09:39:34 Just try to find one of the older ones that doesn't have the cross pipe. Otherwise, you'll have to weld the hole shut. |
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Title: Re: Dyna Muffler Post by Dave on 01/28/14 at 09:44:27 And if you don't want a muffler with a catalytic convertor inside - be careful what you buy from the California area. The mufflers don't seem to hurt performance - but they to tend to turn blue and other heat related colors at the font of the pipe where the converter is located. The non-catalytic mufflers have a large 1-1/4" tube if you look into the entrance of the muffler - while the catalytic ones have a honeycomb looking mesh with small holes visible just inside the muffler intlet end. |
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Title: Re: Dyna Muffler Post by houstonbofh on 01/28/14 at 15:38:15 Aida's has a cat in it, and I love it! There is a cool orange glow from the pipe when I follow her. :) And it has a heat shield to hide the bluing. :) |
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Title: Re: Dyna Muffler Post by pgambr on 01/28/14 at 16:32:50 Yeah, I read that thread in the tech section. There is a whole lot of great info there. I went to ebay today and they had a bunch of different stuff. I don't want to order something to find out it isn't going to fit well. And then I'll have to figure out the proper jet settings and probably have to spend more extra $ than necessary. |
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Title: Re: Dyna Muffler Post by houstonbofh on 01/29/14 at 16:45:45 Go to a local Harley dealer and ask to buy a pull from the pile. They will have a big pile. I paid $20. |
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Title: Re: Dyna Muffler Post by pgambr on 01/29/14 at 17:05:25 Sounds good except finding a close dealer. I got a flat tire a 100 yards from the local hd and they wouldn't help me. >:( I'll have to go 1.5 hours to get to the next closest one. The real important part is that it has the baffles, is that correct? Did you have to rejet it to make it run right? HD 65747-94 |
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Title: Re: Dyna Muffler Post by bobert_FSO on 01/29/14 at 17:30:59 The "baffle" on these mufflers is merely a single plate the blocks the tube running through the muffler core. This forces the exhaust to go around the plate and into the baffles that are internally built into the muffler. Sometimes this plate (disk) can fall out or be knocked out via a broomstick and hammer by some enterprising owner seeking more noise. My understanding from others on this site is that if the plate is missing, it can be replaced by driving a proper sized auto engine freeze plug down the inlet of the muffler, thus restoring factory baffling. |
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Title: Re: Dyna Muffler Post by Kirill Timofeev on 01/29/14 at 20:56:25 Do I understand correctly, that since dyna differs from stock muffler overall performance would become worse? With stock muffler folks claim to have 50mpg, what mpg can be expected with dyna? |
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Title: Re: Dyna Muffler Post by Serowbot on 01/29/14 at 21:20:18 MPG is the same or better... performance gains from just a muffler change are minimal...(mostly just feels more powerful because of the nicer sound)... ...but, breathing is definitely not reduced... so, there may be some actual HP gain... Mostly,.. it's just a better made, nicer chrome, lighter, and better sounding muffler... that alone is worth the price... The stock muffler is restricted to meet required noise levels... it's not tuned to perform... Harley seems to get away with higher noise levels... I don't know how or why... |
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Title: Re: Dyna Muffler Post by Kirill Timofeev on 01/29/14 at 21:37:51 I'm confused. If after installing dyna I need to use bigger jet how I can get better mpg? |
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Title: Re: Dyna Muffler Post by verslagen1 on 01/29/14 at 21:44:35 if you change the muf to a lower back pressure, it'll lean out the fuel mix. this why you change the jet, to get it back to optimum. so done right, mpg will remain the same. |
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Title: Re: Dyna Muffler Post by Serowbot on 01/29/14 at 21:51:31 There is an optimal tune for MPG's,.. and a different one for HP,... and yet a different one for street performance... and another one to meet EPA emission and noise regulations... An open pipe would make max HP at full throttle and be good for drag racing with a high rev launch, but it would barely idle... A certain amount of tuning will remove EPA restrictions, and make the bike breathe better... without hurting MPG's or narrowing torque... all you are doing is correcting factory restrictions... Even with a bigger jet,... if you are making the engine more efficient by removing restrictions only intended to reduce noise and emissions, you can get better MPG and power... You will just use less throttle at a given speed... If you start to go further... you will begin trading MPG for power, and HP for torqueband width... You tune for how you ride... most of us, like stop and go, and curves and hills... so we tend to recommend mild changes that will retain good torque... Thumpers do well in that environment... |
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Title: Re: Dyna Muffler Post by Kirill Timofeev on 01/29/14 at 22:55:26 Thanks a lot for clarification Verslagen and Serowbot, this makes perfect sense. |
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Title: Re: Dyna Muffler Post by old_rider on 01/29/14 at 23:35:46 KT... I changed out the stock muff to a dyna muff and didn't have to rejet, bike ran exactly the same, no adjustment needed. |
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Title: Re: Dyna Muffler Post by Kirill Timofeev on 01/30/14 at 00:06:00 7271796F7479786F1D0 wrote:
Thanks for the info, my stock muffler is very rusty (with extra holes and something rattling inside), so I'm thinking of changing it in the nearest future. Have you checked color of spark plugs after upgrade? |
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Title: Re: Dyna Muffler Post by old_rider on 01/30/14 at 00:50:18 Nope, been running just like always so I'm leaving it alone.... however when it warms a bit, I am changing a leaky plug on the head, i'll pull the spark plug then and look at it, and probably adjust the tappy valvey thingies :). |
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Title: Re: Dyna Muffler Post by pgambr on 01/30/14 at 16:45:10 I contacted the hd dealership and unfortunately they said they didn't have any good deals to be had. They did offer a new one for $165. :D I suppose I will try ebay. |
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Title: Re: Dyna Muffler Post by bobert_FSO on 01/30/14 at 19:19:36 pqambr, that's what happened to me. My local HD dealer told me that they didn't sell used parts. I've been in there a couple of times and they are quite snobbish. I won't darken their door again, even if I happen to purchase a Harley in the future. I got a couple from Ebay at a decent price. Used one, gave other away on this forum after I sold the bike. |
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Title: Re: Dyna Muffler Post by pgambr on 01/30/14 at 19:36:29 I can't speak highly of hd from my experiences. I will always have a bad taste in my mouth after they wouldn't help me with a flat 100 yards down the road from there store. |
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Title: Re: Dyna Muffler Post by Duckman24 on 01/31/14 at 05:17:37 I just picked up a pair of Dyna muffs for $50. I placed a wanted ad on Kijiji and got a bunch of replies. I'm guessing there's a bunch of Harley owners that have their old pipes and don't think of selling them. Funny thing is I'm seeing ads now for used pipes and the prices are way too high. Now, bring on spring so I can get it installed :) . Will probably sell my spare for $25, assuming I don't screw up my install on the first one. :-/ |
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Title: Re: Dyna Muffler Post by justin_o_guy2 on 01/31/14 at 07:41:51 283F39353A2A580 wrote:
Thatd do it for me, too.. |
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Title: Re: Dyna Muffler Post by groupus on 01/31/14 at 07:50:44 Dealers always turn their nose up at me when I ask for their precious harley parts for my *gasp* dirty jap bike, even though they have a bin of take off mufflers waiting to get scrapped. Try to find a local independently owned shop, not a dealer; the kind of place called something like "Joe's Cycle Shop" that works mostly on older harleys. They will have a room full of old junk that you can dig through. Since every harley rider changes their mufflers, the take offs are usually in very nice condition. Now they might not know the model or year of any of the stock they have, you can probably just carry in your stock exhaust and find something that lines up with it. These guys are always happy to get rid of that old stock and will probably charge you $15-$25. Get a clamp too, they are $8 from a dealer. Make friends with these guys, as the savage can use many harley bars, grips, foot pegs, fenders, lights, shocks, etc... with very little effort. |
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Title: Re: Dyna Muffler Post by Arnold on 01/31/14 at 08:40:31 I change my muffler once a year, go to a huge classic car show with a flea market and always find harley mufflers there for 10 bucks. |
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Title: Re: Dyna Muffler Post by pgambr on 01/31/14 at 16:49:04 7E7D756378757463110 wrote:
Is that because you are at sea level? I did go and order one at ebay. |
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