The temps won't be 600*F in the resonator pipe - - it's basically a dead-end.

Does this add hp? Or is it for noise reduction?

Why does the driver look so angry?

Finally a purpose for electric cars!

He did a wheelie so easy cause the weight distribution in the back...

It is a nice system, I just wondering why you didn't made a cascade system of 2 or 3 chambers to have a bigger range? I missed the end measurements, like you did at the start of the video, that was a pitty.

That is one big Helmholtz resonator...! At almost 4.5 liters, I can't imagine that you'd have any drone after this was done. On my car I had drone between 70-130hz, but it was clearly the strongest around 82-100hz (94hz peak) so I went with (2) chambers (dual exhaust) that were 4 inches by 10 inches or about 1.925 liters after you factor in the 16 gauge thickness of the stainless tube for the canister. It worked well across the aforementioned frequency spectrum and they didn't take up too much space under the car which is what makes these types of resonators far more appealing for me than a 1/4 wave resonator (a.k.a. J-pipe). Good stuff...!

Hey I have Q . I have 370z and I did muffler delete . It sounds amaizng but it just drones ALOT ! . Can I message you on your IG about this ? Thank you

I've built one too. I thought the tube had to be the same size as your exhaust. I ended up making one with a sliding tube so you could fine tune it. I agree with your results. Used my mobile to record the drone and some free software to analyse it on my PC.

Is this thing mainly for lower rpm drone? I am having bad drone from around 1500-4000 rpm and I am trying to figure out what I should try first to resolve it. Should I try going with a vibrant bottle resontaor placed close to my engine before this?

Try this fix: kzbin.info/www/bejne/hqWYfoJmot-MY6s

You might be interested in this. kzbin.info/www/bejne/hqWYfoJmot-MY6s

Are you to fabricate one for me? All the exhaust shops I speak to, don’t know what I’m talking about.

*I love it! **Fastly.Cool** and Warming environment perfectly controlled. Being able to track history temp and humidity takes all the guesswork out of the equation. Had it for two weeks now and it has been flawless!*

I only watch for 2 seconds as soon as I heard you say look at those Sparks Fly I realize you're just an idiot with a camera that knows nothing about

That calculator isn't working unfortunately. Since speed of sound is m/s, do the dimensions have to be in meters?

Part 3

is it affecting the acceleration or anything? or just for sound ?

Lovely couple. Good to see people happy with each other.

Links to all of these products would be awesome.

here is a hint using a hole saw... clay... make a ring of clay around the hole you are cutting. and the lube will stay in,,, making the cut easier

Can you send a link to the audio tool app? Is it available for iphone?

Thank you Mr. Cusack. This will help me defeat my muffler delete drone.

I installed a Flowmaster 50 serie direct fit muffler on my 2016 ram 1500 sport. Great great sound but drone on highway... so I had to put back my stock muffler, that's too bad. Is there a fix for that, for example by replacing the resonators with those NDT (no drone technology) ones? Any advice would help!

You dont need a variable speed blower. If you have a standard PSC motor with multi speed connections just install a no/nc relay with a 24 volt coil. Run your normal speed wire on the nc terminal and run no terminal to a speed or 2 lower. Dont drop more that 20%! You will still need a thermostat with a dehum terminal that energizes when humidity is above your setting. When the terminal is energized the relay will throw to the lower speed, when the proper humidity level is reached the relay will deenergize and go back to the normal speed. Honeywell makes thermostats that say they dehumidify but they have no dehum terminal. All this does is run the a/c below the normal setting without it showing on the display. This way of controlling humidity is no different than just turning the a/c lower. These stats will not work, you need one with an actual dehum terminal such as a Pro Stat PRS 6420

Do the math.

We just bought a 2007 Dodge Ram 1500 with a 5.7 and a bed topper with 69,000 Cruising at 65 mph the on board computer said 20.6 mpg I even followed a stake side truck at 45 mph on the freeway and the computer said it was between 31 & 32 mpg 45 on the freeway in Florida is usually a suicide act and not recommended But I was following Him and there were two more behind Me doing the same thing Just cruising I did not do the Math with topped off tanks between runs like You, so do We trust the on board computer for MPG?

On the end of the resonator where you put the flexible hanger bracket will allow your welds to break should be solidly mounted to the pipe beside it maybe some gussets at the lower end also by the elbow just saying I’ve been there broke that LOL Good video though

Sorry you just should give it up for UTube. Your part 1 diy is very poor.

Does it do anything for WOT exhaust noise?

Hello. Awesome video for noobies. I am building my system and I am not trying to buy the pre-made kits with all filters and housings. I have all I need except the ro filter housing. Where can I locate one please. Thanks

did it work?

I never saw a video that Didn’t explain shit at at all

Not a good design. Resonator should always be the same diameter as the exhaust pipe, not smaller.

Which model ecobee is this for?

So what will the system do if calling for dehum? Does thermostat engergize az and fan at same time?? Or what is the process?? I have Trane s9v2 considering connecting dehum

Those nails bro!?!?!

Wouldn't you want the RO filter at the end of the filter system not in the middle?

Does it kill rasp?

what is your recommendation for a DIY RO system. Just built a house and want to install a water filtration / RO system. We are on a well with a Culligan water softner. My concern is the cost of the filters that have to be changed on a regular basis. Would like great filtration without getting stuck having to buy name brand filters. You stated the 10" filters worked well. What kind do you like and where are they purchased? Thanks, James

SOME IDEAS I GOT FROM YOUR VIDEO kzbin.info/www/bejne/eGXJdXeifcyMY7c

What happens if the Helmholtz resonator is too long?

Made it way more complicated than needed. All you need is same size exhaust pipe welded on at a 90 degree angle. Then cut it to proper length desired and then cap it.

Or you Could learn how cut better with a cutting wheel

Great video! Finally instead of suggesting using dynomat or other mats or using other mufflers someone used math and physics approach to fix the drone noise. Thanks buddy! I'm definitely bookmarking this video and once I have a garage with workbench, vice etc I will try to do it too. Funny think my car has pretty expensive aftermarket exhaust and there is drone at cruise speeds and around 1800-2200 rpm. BTW another option is to use a stock exhaust and add valve (pressure or electronically) controlled section so you can have some exhaust noise when you want and still have a quiet daily driver. PS: I just watched another video made my Dynomax about their VT mufflers which have valves inside. But they just told me they no longer make them. Idk why but the idea was nice.

I wanna have one of those KLX's again. Awesome bike.

What not to do video!

what engine do you have?

Great video brother. But your truck is disrespectful. In front of your wife she's unbuttoning your pants.

Video could be reduced to 60 seconds