470 miles??? what size gas tank you got? I have never gotten more that 400 on a tank... then again I have never driven until I run out of gas lol
Stock intake silencer/baffles removed?
- Thread starter iDRiVaT4R
- Start date
jam23r1
New member
will i did drive it till it read 11mi till walk lol
limamike
New member
You've still got another 1.5 gallons or so after it hits zero.
5thgen20
New member
Where did you get the brass fitting and the vacuum hose?
Great mod! where did you buy the brass fitting and vacuum hose? I want to do this to my 2011 SR5.
Thanks!
Ok I did this on Saturday. The bigger silencer had a larger opening than the smaller one for some reason. Anyway's The post cap fit perfect in the opening closest to the filter, whereas the other one closest to the TB was a little smaller than the post cap. I used a rubber mallet and hit the aluminum cap all the way around to make the diameter a little smaller. I was able to squeeze it into the opening but was a tight fit. As far as the vacuum connection, just picked up a 1/8" to 1/4" adapter and drilled/ tapped the post cap and screwed it in. Also picked up a little longer vacuum hose.
First impression, yes you can kinda hear the engine suck in the air while your accelerating, I don't think it affected the exhaust noise at all. After all the supplies it was about a $10 mod, so you can't go wrong. It definitely will not hurt performance any.
The fitment issue for the post cap into the smaller diameter intake tube opening was bugging me so yesterday I used the rubber mallet again to try and make the post cap a tad thinner. Well, the aluminum cap cracked and I had to temporarily put the stock baffles back on.
Iv'e tried searching the internet for a lightly smaller post cap but seems unlikely I'll find one. Either I'll have a custom cap made by the machine shop guy here at my work or I'll wait for AFE's intake to become available.
Oh and in my earlier post I thought that was an EGR valve, its actually a Fuel Pressure Regulator.
Great mod! where did you buy the brass fitting and vacuum hose? I want to do this to my 2011 SR5.
Thanks!
I'm going to be "that guy"...
The resonators serve a couple purposes. Yes, they reduce noise. And, I agree that I wish the truck had more intake noise.
But, they are also carefully designed to help increase torque. Look up Heimholz resonators. They are tweaked to help time intake "waves" such that torque is optimized.
Your "hack" is not only removing the resonator (which has an engineered purpose), but also adding turbulence to the intake flow.
And, our trucks have near zero torque. I can barely drive up an incline on the freeway without downshifting. In other words, torque in these trucks is a precious resource. Y'all might want to retain as much as possible
I had a TRD intake on mine for a few weeks. Made an awesome noise, but I detected a decrease in low end torque which was consistent w/my understanding of intake design & the impact of losing the resonators.
YMMV.
The resonators serve a couple purposes. Yes, they reduce noise. And, I agree that I wish the truck had more intake noise.
But, they are also carefully designed to help increase torque. Look up Heimholz resonators. They are tweaked to help time intake "waves" such that torque is optimized.
Your "hack" is not only removing the resonator (which has an engineered purpose), but also adding turbulence to the intake flow.
And, our trucks have near zero torque. I can barely drive up an incline on the freeway without downshifting. In other words, torque in these trucks is a precious resource. Y'all might want to retain as much as possible
I had a TRD intake on mine for a few weeks. Made an awesome noise, but I detected a decrease in low end torque which was consistent w/my understanding of intake design & the impact of losing the resonators.
YMMV.
Soupbean
Member
Intake mod
I too was shopping prices on the TRD air box about a year ago , a pretty pricy accessory. I believe it does help top end HP which is what I'd be looking for. Decided to hold on that till I make sure I don't get a new Tundra next year. Tend to get a little carried away with modding vehicles so trying to resist the urge with the runner for now. I work construction and get to work in and see some very interesting plants and facilities. Three or four years ago did a little job at a place that makes among other things intakes and inductions for Honda Motor Corp. Was adding fire protection to a controlled environment room that was also noise and vibration isolated. This room was built solely for designing and testing air intakes. Using simulated engine noise at various rpm's and measuring air speed & volume at different throttle openings . This room was like a miniature lab . The guy had headphones on while listening to overall intake sound , adding different size and shaped ducting , adding different size and shaped baffles at different locations for a desired intake sound or just outright quietness. All while monitoring air speed & volume. A lot of technology goes into the design of factory intakes.
I too was shopping prices on the TRD air box about a year ago , a pretty pricy accessory. I believe it does help top end HP which is what I'd be looking for. Decided to hold on that till I make sure I don't get a new Tundra next year. Tend to get a little carried away with modding vehicles so trying to resist the urge with the runner for now. I work construction and get to work in and see some very interesting plants and facilities. Three or four years ago did a little job at a place that makes among other things intakes and inductions for Honda Motor Corp. Was adding fire protection to a controlled environment room that was also noise and vibration isolated. This room was built solely for designing and testing air intakes. Using simulated engine noise at various rpm's and measuring air speed & volume at different throttle openings . This room was like a miniature lab . The guy had headphones on while listening to overall intake sound , adding different size and shaped ducting , adding different size and shaped baffles at different locations for a desired intake sound or just outright quietness. All while monitoring air speed & volume. A lot of technology goes into the design of factory intakes.
LandCruiser
New member
Contact Toyoda-san about oppai mod.
Throwback
New member
It blows me away to see how many guys ignore how much engineering work goes into each component of these vehicles and how they are designed to work as a system.
It would seem logical that if there were any "easy and cheap" upgrades that would actually have benefits that outweigh the negatives, the design team would've figured that out on the front end.
1engineer
Moderator
Logic goes out the window around here. Looks Cool>>>Functional
mrevilandy
New member
Are you saying this has a negative or neutral effect? I'd take neutral effect to make more room in the engine bay for something else instead of the baffles plus we all love the vroom vroom noise
1engineer
Moderator
I'm going to be "that guy"...
The resonators serve a couple purposes. Yes, they reduce noise. And, I agree that I wish the truck had more intake noise.
But, they are also carefully designed to help increase torque. Look up Heimholz resonators. They are tweaked to help time intake "waves" such that torque is optimized.
Your "hack" is not only removing the resonator (which has an engineered purpose), but also adding turbulence to the intake flow.
And, our trucks have near zero torque. I can barely drive up an incline on the freeway without downshifting. In other words, torque in these trucks is a precious resource. Y'all might want to retain as much as possible
I had a TRD intake on mine for a few weeks. Made an awesome noise, but I detected a decrease in low end torque which was consistent w/my understanding of intake design & the impact of losing the resonators.
YMMV.
Read Stiles post I quoted from above. While he does exaggerate a bit by saying out trucks have "near zero torque" lol the rest of his post is true. Toyota didn't do it just to have something to do on a Thursday afternoon.
I design things for a living, so I know a bit about some stuff. My 4Runner is not modded because, for the life of me, I can't figure out how to make it truly better than stock. Every mod, while it might marginally help in one specific condition, causes too many other losses of functionality.
For example: E rated tires. Sure, it gives you piece of mind when you off road for those 20 miles every month but for the other 1500 miles that month, it really degrades the comfort level on the road not to mention the losses by adding unsprung weight and the additional cost up front.
Too many people mod for that "one trip" or even the potential for that "one trip" and suffer the rest of the time. So it ends up being a safari ready mall and grocery getter. Now, it looks (or sounds) cool and all but functionally? No.
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