Triple K and N intake noise solutions ????

Bulletproof

.020 Over
Joined
Oct 23, 2010
Messages
25
Location
Georgetown, Ontario, Canada
Hi Guys

Enjoying the heck out of my 2007 Classic Tourer I bought from GRAYDOG last year. Predator pipes, triple K and N's, tuneboy. What a beast. I found the exhaust too loud running fully open so I installed the 12 plates on the Supertrapp muffler and now it's perfect. Now I'm noticing what sounds like pinging and knocking coming from the intake between 1800 and 2500 rpm's under light throttle. I did a search on this site and it looks like others with the same set up have noticed this as well. I'm satisfied it's not pinging or a dangerous lean condition after trying different fuels. My question is has anyone designed a custom intake cover which will eliminate or reduce the noise and allow me to enjoy those Predator pipes? Would going back to an under seat K and N require a different tune and result in a significant loss in top end power? If so I'll live with the clatter. Thanks guys
 
There will be intake noise wherever the openings are, if they are exposed like on the triples, the noise will be loudest. If you opt for the under-tank filter the noise will be suppressed and much less noticeable. Obviously the quietest is the under-yer-ars factory intake opening. It's pretty much all just a trade off for something ... mo-power makes mo-noise .... and so on.

Other than the bear claw covering the triples, I can't think of any other way to hide the sound. I got used to what the TOR's didn't cover up and just ignore it anymore, about the only noise I still notice is the chirping at partially open throttle. That goes away with just another twist of the wrist! ;)
 
i think HellFire pretty much covered it.
custom intake cover?
I've seen one or two, but not sure if it lessened the chirping and intake noise or not.
Just got use to it myself...
It's a big motor, you open it up where it can breath
and it makes a little noise.
 
I found the std cover is the best to cut noise, I lifted it up 25mm and out 25mm by modifying the mounts. Then I fitted a rubber D mold across the top. This mod enables you to get more air to the filters and you can leave the claw on with the tank up. It cuts the noise down to a nice level.
 
I found the std cover is the best to cut noise, I lifted it up 25mm and out 25mm by modifying the mounts. Then I fitted a rubber D mold across the top. This mod enables you to get more air to the filters and you can leave the claw on with the tank up. It cuts the noise down to a nice level.


That's interesting . Got any pictures ?
 
I covered the inside of my claw with 1/4" thick dense foam rubber with sticky backing. Also made a gasket out of it for in between the claw and gas tank. Got rid of 95% of the cricket sound. I got the stuff from a guy a work but I'm sure it must be available somewhere.
 
I covered the inside of my claw with 1/4" thick dense foam rubber with sticky backing. Also made a gasket out of it for in between the claw and gas tank. Got rid of 95% of the cricket sound. I got the stuff from a guy a work but I'm sure it must be available somewhere.

Rocket Scientist thanks for the tip this sounds like something that I should try.

cheers
 
DO NOT operate the R3 in high gear at 1800-2000 rpm with any amount of load!

The load on the engine can induce detonation, and this will damage the crank and rod bearings.
 
DO NOT operate the R3 in high gear at 1800-2000 rpm with any amount of load!

The load on the engine can induce detonation, and this will damage the crank and rod bearings.

Not trying to be argumentative here, just trying to learn, so please educate me: I always thought the risk with detonation was damage to pistions and/or valves - not to crank and bearings. It was my understanding that the detonation we hear is the sound of untimed "explosions" in the combustion chamber, with consequential risk of damage to the surfaces inside the combustion chamber: the piston, rings, valves, and the cylinder walls themselves. I can't visualize how/why detonation would affect the bearings and/or crank shaft, except as damage collateral to the combustion chamber components. Am I off base here? Again, I ask out of respect to the OP, and not in an attempt to debase anyone's comments. I am no kind of authority, that's for sure.

CW
 
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