Air Filter - Too Noisy By Doug in San Diego (Read 3,990 times)

[Doug in San Diego]

Hi Guys

Is there another option for air filter?

I have and have had a UNI filter. But I get a quite a bit of extra noise coming from that side of the engine.

A real WAHHHHHHHHHH when you open it up.

I have seen more solid enclosed looking filters. Is it possible to get a good filter that would reduce that sound coming from the engine?

Perhpas something like this

.hdbright.com/scooter-cold-air-intake-filter-kit-4t-pi-34.html?image=0" rel="nofollow" target="_blank">.hdbright.com/scooter-cold-air-intake-filter-kit-4t-pi-34.html?image=0

Follow-up question - Is the UNI free flow filter even worth it? (perfomance-wise)

If not I could just buy a stock airbox. Which was much quieter

Doug

[jhbietz]

I believe you will find that any type of aftermarket filter is going to be noisier. There are small performance gains if you up jet the carb to match the increased airflow. This is more true for the 50cc scoots then the 150's.

[sprocket]

I have never seen any performance gains in just changing to a K&N or UNI. You need to change the exhaust as well and up jet 4 or 6 sizes.. then you will see a gain, but the gas miles will also drop....

Some people use an oiled UNI inside the stock air box...still fairly free flowing and cuts the noise as well....just remove the stock filter and add some more intake holes in the stock box with a 1/4 drill

[Bong]

Hey Doug, I agree with everything Sprocket said but I will add this-- That looks VERY COOL!!!! Not much gain in performance without other mods and tuning but, If I could find one, that would be my next mod!!! Way cooler than an UNI and most likely a bit more quiet. I just wonder about the price tag. One with leds would look very cool even if performance is negligible.

[sprocket]

Does look COOL you could probably stick a UNI inside that puppy as well. Do you know what they are using as a filter?

[problemchild]

i like the look aswell where do you get them at pm me please with a place to buy 1 from thanx

[Doug in San Diego]

Here's another thought

(I am determined not to destroy this engine)

My scooter does not have a rear fender, so that UNI is right near the wheel. I imagine it sucks up a ton of dirt in that location. Also it seems that it would suck up hot air rather than cool.

I was thinking about using the old elbow tube from my stock airbox to extend the UNI out to the side of the engine, over the CVT.

Would this hurt performance? And am I right about the dangers of the current location?

I would rather lose a little performance if I could make it quieter and have the engine last

[Doug in San Diego]

Ummmm. Hello? JR. Sprocket ?

What? Did you guys evac from the hurricane?

I'm used to quicker responses , aren't you on here 24/7?

Allright , I decided to just go ahead and do it. Used the old snorkel and my new uni on the end.

Took it for a ride, all seemed good, so I think I'll leave it

[Bong]

Just my 2cents but yeah using the snorkle to relocate the UNI instead of a direct carb mount is done quite often. My 50cc prefers a strait carb mount but, so long as your not bogging and the jetting is ok, NO Problemo. Same noise level just off to the side indstead of under the seat.

[Bong]

IMO a complete stock setup will guaranty longer engine life. It's when you mod and don't adjust/tune for the mod that problems happen. You can actually get better performance with a stock box and the right setup. Tuning is Key!!!

[Doug in San Diego]

I hear you

But my stock. Box is gone so I'm stuck