ST1100Y
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Yep, sorry for the typo up there...He meant venturi(s).
Yep, sorry for the typo up there...He meant venturi(s).
You'll get louder, but you're poking at the wrong end for more throttle response. Opening up the exhaust nets you some additional horsepower, but the laws of physics extract a penalty by stealing torque from the low end.2. My goal is to make it a bit louder and maybe find some more throttle response.
Well....to your surpise, what you can 'see thru',( if your referring to a stock exhaust, and not 'holed' rusted thru) is NOT the same as expansion pressures. My friend, with a statement like that....you got a whole lot of learnin' ahead of you as far as exhaust systems back pressures. No offense intended, just the facts as I see them as this thread has progressed and your responses.Ok, so i got these things yesterday. Unlike other attempts of just drilling a hole through them i think i will take a different approach. I think my best plan of attack is to cut the factory welds that hold them together and take the guts out. Then reassemble with a generic perforated baffle tube and test. I will post pics of what i find.
A few side notes....
How is a muffler that you can see straight through ever tuned to a specific motor?
Why would i spend more money on hollow pipes that need removed every 3,000 miles for tire changes when for $100 i can have essentially the same thing that wont need removed?
Reminds me of the chemistry set I got for Christmas once when I was a kid..........:wasntme.....have fun, it's only a hundred bucks....keep us posted..........ffGood luck on your experiment - you only learn by trying!
Easy to explain with a few differential equations. It's about the pressure reflection that occur when the exhaust gasses exit the pipe. Some of the various parameters have been mentioned above. Also ; RPM, intake port & ram tube length,How is a muffler that you can see straight through ever tuned to a specific motor?
NO NO Don't sell them dude. The best way to learn is mess with stuff. I say get rid of the cats & AIR system just to piss off the tree huggers and reduce heat. You may need to fiddle with carbs if doing this creates a flat spot. Post some pics !!! PLUS worry more about how the bike rides when your done. We are not talking about a track bike here LOLI guess then i have a serviceable set, though pretty rashed up, of mufflers for sale. Who wants em?
Usually its about the diameter and length of the perforated pipe equalling air flow. For most its about obtaining a flat torque curve which is a combo of tuning & opening up the exhaust or intake.How is a muffler that you can see straight through ever tuned to a specific motor?
+1 :clap2:....
I like the quiet exhaust on my ST1100. If the exhaust was any louder, I wouldn't be able to hear the cool straight-cut camshaft gear whine.
I bet in 29 years, you may think differently. Re-post then , please.I for one would like to see/hear the results of your mod. The only real complaint is the grandpa mufflers quiet the engine too much. Just don't want to drop the coin on a set of mufflers I've never physically heard or suffer the inconvenience of having to remove them for rear wheel maintenance. If the mod works I would do this to mine.
I had Kerker slip ons on my old VFR with no baffles. Let the V4 roar! Sounds like a hotted up Chevy small block.
I agree.I bet in 29 years, you may think differently. Re-post then , please.
However, I doubt by that time many of us will still be around ...I bet in 29 years, you may think differently. Re-post then , please.