Thank you for watching everyone and I always appreciate your kind words and support! For more Helmholtz resonator exhaust info, a google search for that term and/or 1/4 wave resonator will get you images, equations and many first-hand reviews, mostly from car forums. Also, I do plan to add a hanger to the end of the pipe, I was just making sure I had the pipe length correct before doing so, forgot to mention that in the video. Have a good one! -Tom

@supercoupe6288

6 жыл бұрын

great idea Tom but " there's always a but " might want to install a hanger on the end of your Helmholtz resonator because once the weld breaks good bye Helmholtz resonator.

@baloneyjusticecheezedog

6 жыл бұрын

I really like this mod. I always though that the biggest problem with big exhaust system is everyone can hear the fact you worked on your car.

@jtamxgsx

Ай бұрын

Hey Tom! Do you recall the length of the resonator pipe you installed? I'm going to have a muffle shop install one for me in my 91 VR4. Cheers!!

You don't work your way up with hole saws, you start with the final size, so you retain your pilot hole in the center. Love your videos Tom! Didn't mean to come off as terse as it reads. Keep up the content!!

@AF29007

6 жыл бұрын

that's what I thought too lol

@John-to2ki

5 жыл бұрын

There’s a trick where you use your pilot saw in place of the drill on the bigger hole saw to hit center

@MegaShowtime2012

2 жыл бұрын

It's different if you pre smoke

Ive probably installed over 100 1/4 wave resonators. They always still amaze me when they work and my customers love em.

@medleyscrapmetal9833

6 жыл бұрын

minivanin

@darrincarty2684

6 жыл бұрын

Is there a good place to get diy math calculators for doing this? My BMW has a drone I need to nix.

@BobWright1

6 жыл бұрын

@minivanin I have a 5.3 GM V8 with drone between 1600 - 2000 RPM's. Can you recommend the best length 1/4 wave pipe to eliminate the drone? Also, does one pipe length get rid of the drone at all RPM's above? Thanks for any advice. BW

@jxpatel

5 жыл бұрын

You need to know the frequency of the wave you're trying to eliminate. Download a spectrum analyzer app onto your phone, drive around and figure out what the drone frequency is. Mine was 100-120hz between 1500-2000 RPM in a V8 TT BMW. I decided to attack the drone at the 110hz frequency to try to eliminate my range of 100-120. To figure out the length of pipe use this equation: 1200 / 110 / 4 * 12 Speed of sound / Frequency (to get wavelength) / 4 (to get 1/4 wavelength) * 12 (to get inches of pipe) 1200 is the speed of sound at 140f, its just slightly more than standard speed of sound in air at 1100fps, I just compensated for the increased exhaust gas temp. So my pipe needs to be about 32.7" long to attenuate the 110hz frequency that's annoying the piss out of me while cruising in the beast. Hope this helps!

@gabrielkidder8112

Жыл бұрын

How many hertz does a 1/4 wave typically cancel out? Like a range 80hz to 120hz or is that too much to hope for.

My S2000 had a HKS hi power silent exhaust with a funny chamber on it, makes sense now as it sounded great at all speeds and loads. Thanks so much for sharing these, Tom. Love watching your vids

I appreciate your attention to detail. Most people would have just slapped an exhaust on there and lived with the drone. Kudos.

I like how an exhaust tip can create so much emotion for us car guys-I also had to have a dual tip on my Colt turbo!

Just finished this series. My dad's first car was a used '94 7th Gen Galant Super Saloon, which he let me drive around and which I grew up with. It's been monkeyed with by a few owners and mechanics over the long years. It was even used as an undercover cop car for a short time (Dad was a cop). Now it's sitting on a parking spot outside collecting dust and rust. So I started looking for success stories of project cars and sick upgrades. Each video in your series is just amazing and really inspiring. And also very satisfying, coming from a family with no experience or skill with cars. I hope someday I get to experience these things with my old man's car. Thanks for the vids, Tom! Cheers from the Philippines.

The dual tip really does look better. I've really enjoyed watching your Street Sleeper series. It brings back LOTS of memories for me. My family had both a 1991 and 1992 Galant VR-4. The 1991 was given to my oldest sister who eventually sold it 😞. I did quite a few engine mods to my dad's 1992 (turbo, intercooler, injectors, etc) to up the ante under the hood. Unfortunately that car was given to my younger sister who let her ex-husband have it when they got divorced...double 😢😢. Like I said, lots of memories... The Galant VR-4 really was ahead of it's time and still looks great. You've just about inspired me to start looking for one of these myself to restore and modify into street sleeper status. Keep the great content coming!

Nice work Tom! I love the way the resonator fits and the dual tip looks great!

@TomsTurboGarage

6 жыл бұрын

Thank you Joe! Hope you're having fun in sunny Florida, it's snowing here right now. :-/

@JoeWrenches

6 жыл бұрын

Yes! I had a great time at the track yesterday!

Nice job, I liked the history lesson/explanation of why it works.

Thanks Tom, for sharing this idea to get ride of some exhaust drone! I had the exhaust done on our families Ford Expedition and it sounds great but the drone at 40/45mph is a bit much for the wife and kids.. After watching your video I took our SUV to the exhaust shop and had them add about a 2' long pipe to the side of each exhaust pipe to act as a helmholtz resonator. It did the trick, no more drone and the exhaust still sounds great! Thanks again!

You know you're getting old when you're trying to make you're exhaust quiet.😃 nice job by the way.

@TomsTurboGarage

6 жыл бұрын

Haha, very true! I didn't want it quieter though, just hate drone so dang much. :-D

I like the ventilation system in y'all's paintbooth... Thanks for the inspiration... Keep on trucking (from France) !

Love the videos Tom, good stuff. I find myself on KZread quite a bit longer now with you, and Jafro uploading again.

@paulwisdom5383

6 жыл бұрын

Two of my favourite car channels after Mighty Car Mods. I also like South Main Autos channel for a more educative episode here and there.

Super job, mate. This is such a great channel; always looking forwards to your little projects and teaching by doing.

Great video again Tom! Keep up the great work and solid entertainment for your viewers!

just put on a Helmholtz resonator on my turbo pt cruiser. it was just a 3 inch o2 housing down to a 3 inch dp and straight pipe. it was super loud. put in a 2.5inch 15in long Helmholtz and bam. much much better. still sounds straight piped but much less drone and a bit quieter all around. I think i just got real lucky on the size. didint do any math. Thanks for the idea man. works well. nice vr4 btw. havent seen one in a long time. very underrated car. 4g63 good engine.

Love this setup Tom! Keep bringing us updates please!

Thanks for videoing this. I've wondered about doing this on my wrangler since it's got a pretty bad drone. Glad it worked out for you!

With AI-generated captions turned on, the exhaust sounds are identified as "[Music]". I agree with the AI. :-) Yeah, a "before" example woulda been good, but it was a "while you're in there" mod, so that's just the way it goes. It's still a good video.

@TomsTurboGarage

6 жыл бұрын

Haha, interesting about the captions! Thanks for checking it out William!

Great way to start the weekend! Thanks Tom!

i have seen these Helmholtz resonators on older rearwheel drive Peugeot cars. It was stock equipement on those cars. My own modern Toyota has them on the intake side. Simple small plastic closed spaces attached to the intake piping. Cool video!

I've worked with quite a few helmholes

this is cool! i have never seen anyone do this! i just recently started doing quiet exhaust and "loudvalve" for dumping and max power, so its boost/vac actuated cutout, nice and quiet and then open DP basically when you make boost, thanks for the videos tom! we just had our little guy 4 weeks ago and i feel the pain about garage time that you are always talking about lol

@TomsTurboGarage

6 жыл бұрын

Thank you for the kind words sir and congratulations to you!!! Oh yeah, having a bunch of kids is fun - but absolutely wrecks the garage time. :-D

@coronapack

6 жыл бұрын

hey! its sloppy mechanics!

Thanks for making this video. Been dealing with some drone on my Jeep and have been looking for solutions. You're awesome!

@TomsTurboGarage

5 жыл бұрын

You're welcome sir, glad I can help! I really wish I provided some more concrete info for folks, I had no idea this many people would be interested in the Helmholtz resonator.

Very great work & lovely to see an old Mitsubishi Galant! 👍

Jus wish I had 1/4 of the energy, talent, enthusiasm and drive to do all those cool azz projects... Gotta be amazed by the attention to detail and sense of correctness. I love the Buick grand national the best of all....super badazz ride

I love these kind of videos that leaves you with knowledge

Tom I love your videos, all of them. It's easy to tell you're a genuinely good guy. I know this because I've watched every upload for something like 8 or 9 years or so now. I don't usually comment these days but had to say that you're appreciated and keep up the hard work.

Them steps look dapper, good video Tom you biblical beast

Wow! I was just wondering when we'd get another video!

I've watched all your videos and can't get enough!!

@TomsTurboGarage

6 жыл бұрын

Mushfiq Choudhury Thank you sir!

Looking good and fits like a glove. I learned something.

That's a big spray booth! I have added more Hermoltz resonators to my intake and it made it quieter under load. Adding the conventional resonator to it was clever.

Garage looks great Tom!

In my opinion exhaust is one of the hardest things to get right. Between my Mustang, Vette and Subie I've gone through probably a dozen different setups. You get one setup that sounds nice and end up adding headers or a cat delete and in comes the drone or trumpeting. Glad you enjoy it though and it definitely looks better with the dual tip.

I like the way you have paper towel on the bench to protect the tip and set up the exhaust on the floor with wooden blocks and use a bit of card to catch overspray 👍 it helps my OCD thankyou , you have a subscriber...

Great job and video, as always!

Nothing wrong with a trusty cardboard box! In the end, this sounded great. Good job

great video tom!

'paint booth' hahah

@TangoOne

6 жыл бұрын

lol beat me too it

@TomsTurboGarage

6 жыл бұрын

Tee hee!

@baloneyjusticecheezedog

6 жыл бұрын

The amount of things you are doing on the floor of your shop or outside on the ground is surprisingly high. I can't imagine any of that is good for your back.. Maybe you should think about a roll around table project or two?

5:27... scared the crap out of me! As always, I'm jealous of your skill and your garage.

hey there buddy. I just added a horse to the stable. 2017 mustang 5.0 with performance pack. when the wife finishes her masters in 2 years, i will ask to buy the miata again!! lol... keep up the fun.

I've seen this used before, but i questioned how well it works. After seeing this here I am very inclined to try it myself.

That's some cool science Tom, I wonder if it knocks any HP out? You should give us another v-box test to compare your new setup to the prior. Thanks for sharing your knowledge!

Love that your back!

Cool stuff, I'm building an exhaust for my 1990 ZR-1, and researching this subject. My stock exhaust is way too restrictive. Nice work. 👍👍🏁🏁

Good content man 👍. Honestly I don't care what others say ,most important is it works and looks good too 💯.

The dual tip looks way better sir good work

Hey, thanks for the run down on the Helmholtz. I was wondering how you calculated pipe size, length, and cavity size/volume. To further explain: I just installed a new muffler with stubby down exhaust on my inline 6 cylinder 4.0L and I'm noticing a drone at 1750-2250rpm (ish), in the 90-105hz range. It's only 60ish decibels so not overbearing, but if I could get an explanation of how to calculate a Helmholtz style branch resonator and quiet the drone down it would be great!

3:57 first time I have ever seen you make a silly mistake. You got rid of you pilot hole by stepping up in hole saw sizes. Seems like you ended up getting it done in the end though.

Its cool that you noticed a difference, would have been really cool for a before and after both from the rear and in the cabin comparision so we could also see the difference......might be a mod some others would consider with some comparision vid, awesome videos, loved the shop tour, really nice shop, cool cars and projects, cant wait for more

looks great very tasteful as always! :D

Nice!! I think the newer Focus RS has one (or two) on their exhaust as well.

We have the same paint booth, I finally feel validated in my choice.

Hey Tom, just recently picked up a 92 vr4. Got some goodies waiting to be installed. Going for 390/400whp. Was wondering how your 3 bolt rear end is holding up as I know you are past 400whp. People are telling me it will snap around 350whp. Thanks in advance.

I love this episode.

Wow this was much appreciated for idea genious .. Congrats

Interesting concept!

Got to try that

Lovley job 👌

Good job

Is there a difference between using a resonator for the cavity or a bigger pipe at that section as I’ve seen in some videos? I really want to do it, but I want to make sure I get it right. Thanks for the video and I love the car. 😍

Looks like a pant antler. Nice!

that's freaking amazing!

Did it make it any quieter at WOT? I have a single 3” already with 2 inline resonators and a muffler on my 2.0, crazy loud from 7000-9400rpm

Any audio of before whine you corrected? Would be interesting to be able to hear the difference.

Too cool, good you were able to kill the drone. The Fam definitely going to appreciate it too.

First good review of an exhaust Helmholtz resonator that I've seen. Back in 2003-2004 I was trying different exhausts on the Talon trying to get rid of the resonance. At the time I was playing with different length round glasspack mufflers inline with the pipe but they all didn't work that well. I did look at Helmholtz resonators then bit the trials were getting expensive. I gave up and used an RS*R exhaust which has zero resonance but is quite restrictive. This makes me want to try it out again. Do you mind sharing the dimensions you used?

Great video. Could you please add helmholz resonator to your video title or description so this video comes up in the search results. This video would have been really informative when I was researching helmholz resonators a few months back!

@TomsTurboGarage

6 жыл бұрын

Great idea, thank you!

Tom I'm disappointed that you didn't play the sawzall song before cutting that tip off!

surprised you didnt support the pipe to resonator, looks like with that length it might flex and crack

You're the best Tom

This was my first car , I always thought I was a bad ass . Saved all my money for underglow and it took so long to save up it was out of style by then .

Yea, the smaller dual tip looks much better than the can-like one. Great idea to reduce the drone. As I try to tell the loud exhaust lovers, it isn't about the volume of the exhaust, it is more about the quality.

Hi Tom!! Great video! Just wanted to tell you that I think that your seatbelt seats too high in the B pillar, you need to lower it in order to work properly in case of an accident, where it will stop your left shoulder from moving inmediatly! Cheers

Cool video Tom. I wonder if Corsa is using the Helmholt's resonator?

how is the weight of the resonator? have you thought about putting another hanger on it? looking forward to seeing you detail the Galant! :)

Love that DSM sound, and I don't even own one :(

This is a good sound :D

I've a dual exhaust setup. Does that mean I'll need two?

Hey Tom, I see 6UL's and konigs along the wall, what wheels are you running now on the mx5?

@2:15 i didnt know stubby ends had plenty of meat to work with lol anyway keep up the quality content!

Does that reduce air flow/ scavenging (power)? I read a bit online but couldn’t find a clear answer.. most I found was that it may create a lower pressure than outside and cause gasses to rush that space as opposed to getting sucked out the butt end 😝.. but fr tho, tryna find the best performance set up without sacrificing ur ears and sanity is hard

Love your videos, Tom, but I have to ask a question. Why not put the resonator inline with the exhaust flow? Seems like that would have close to identical effects with less weight. Regardless, very cool science mixed with your car. I installed a block off kit on the intake to my 997 C2S to increase intake sound which was reduced by a Hemholtz. It sounded great, but now the exhaust is loud enough you can't hear the intake growl as much. If you ever want a chance to get some more channel content, I have a turbo S2000 in my garage that we could finish in about a day's worth of twiddling around. It's mostly wiring in widebandto the AEM Infinity, gauges, and sensors. Electrical has turned out to be my Achilles heel! Think about it. Later, dude!

What formula did you use for the volume of the resonator? Is it based on horsepower or displacement or the exhaust pipe size?

Can you provide a link to the calculations you used? I'm guessing it's based on frequencies; how did you measure the frequency you were looking to eliminate?

Twin tip looks wayyyyyyy better!

do you think you lost any power by doing this? awesome vid!

I always wanted to try that on my exhaust. With the headers on drone was horrible.

You should take the galant for detailing at sarah-n-tuned :)

Tom have you thought about doing a 5 lug conversion?!

Can’t say I’ve ever seen a resonator setup like this before . All resonator setups I’ve ever had (including the current one on my S15) have all been through the actual exhaust system rather then hanging off the side

Hilarious..."let's take this to the spray booth" ha ha 👍

Love tom!

Hi Tom. I have gvr4 950/1000. Its currently not running and needs a radiator. I cant seem to find a stock radiator without an auto trans cooler built in. Is there a difference in radiators from auto and manual? Thanks

The helmholtz resonator only works when the outlet is perpendicular to the pipe. Also that resonator you put on the helmholtz will make it less effective .

ARE THEY 6UL'S WITH SLICKS! what are they from/ for?

@typedrew

6 жыл бұрын

No Grip his Miata

I find generally a proper mid muffler will do a lot for drone, at least on skylines. Of course space to fit one is a seperate problem...

How do you choose or measure the frequency you want to cancel out ?