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Message started by Rocco on 07/12/09 at 16:53:21

Title: muffler ?
Post by Rocco on 07/12/09 at 16:53:21

SO!!! the stock muffler on my ravage has holes drilled in the end, i love how ratty the stock joint looks with the chrome cover removed, but i'd like a little more noise.

can i drill a couple more holes? do i have to worry about back pressure or anything? what are your thoughts on this my fellow thumpers?!

Title: Re: muffler ?
Post by justin_o_guy2 on 07/13/09 at 08:40:06

Rocco, how long you been around here? There are all kinds of muffler threads,Hoss. More holes = less restriction = mo Noise.
Less restriction = Mo air flow = lean = Need to rejet. Savage ( later models) come out lean anyway.

If you like a ratty look, get a dyna muffler & scrape it up, but its a lot nicer looking, weighs about a 1,000 pounds less, so improves performance twice( better breathing & less weight) & looks better.

Or, go to a muffler shop & have a pipe bent & welded to the end of the header & slap a glass pack on it for a small tractor. That'd keep the rat look alive, sound good & look way better than the stock muffler.

Title: Re: muffler ?
Post by bill67 on 07/13/09 at 09:39:21

Rocco get a long bit and drill up in the hole of the muffler theres 2 plates up in there you can drill threw.About 12 inches up in there.

Title: Re: muffler ?
Post by Rocco on 07/13/09 at 13:09:35

that sounds like a plan! i figured it'd be easier to wreck the stock muffler then get a new one! i'll do just that & get a long bit! louder is better !!!

Title: Re: muffler ?
Post by texsam on 07/22/09 at 11:25:12

i want to drill holes in my muffler but i'm not cause idon't want to reget,i was thing if i took the bafffle out an weilded the 2 plates back in place it would be louder and i don't think it affect it but i don't know if the backpressure would change or even have to rejet opinions anyone??

Title: Re: muffler ?
Post by Serowbot on 07/22/09 at 12:24:09

Drilling the stocker will change the sound from a sewing machine,... to a really big sewing machine....
Get a Sportster muffler.... it'll sound like a motorcycle...
Well worth the $20 or $30 dollars....

Title: Re: muffler ?
Post by texsam on 07/23/09 at 09:37:20

will i have to rejet if i get a sportster muff, would i have to rejet if i were to take out baffle on my stock muffler and put the plates back in place????????

Title: Re: muffler ?
Post by Serowbot on 07/23/09 at 09:46:34

4A55565A5251584B4D390 wrote:

will i have to rejet if i get a sportster muff, would i have to rejet if i were to take out baffle on my stock muffler and put the plates back in place????????

Not sure how you take out the baffles and put back the plates, but basically, if you make it breath, you will need to rejet for best performance.
Same holds for Sporty or anything else..
How much, depends....

Don't worry so much about rejetting, if you are capable enough to de-baffle or convert to a sporty,... ballpark jetting is easy....

Title: Re: muffler ?
Post by texsam on 07/23/09 at 11:13:47

right on thanx for the info i guess i need ti find a jet kit just gotta find one thats one or two sizes uo