Subaru BRZ Turbo Cold Start - 3" Straight Pipe Exhaust
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- Опубликовано: 16 сен 2024
- No cats, resonator, or muffler. Full 3" from the turbo-back. CX Racing EL manifold through a Precision 5558 ball bearing turbo. Cold start on e85. 470whp @ 19psi, stock motor, tuned on Ecutek.
Honestly man, thanks for posting this. My exact RUclips search was "Turbo BRZ straight pipe exhaust" then the first 20 videos are of dickheads filming a shop, piping, and install for 13mims with like 30 sec of post install and ending with "It's too loud". Thanks for getting to the point and simply showing the exhaust sound.
I appreciate that a lot! Sadly I cannot make more but I’m glad you enjoyed it. I always run into the same type of videos and I agree it is very frustrating.
painfully accurate lmao. i love the sound and the pull in the other vid sounds mean as fuck. but i'm assuming it was obnoxiously loud, what components would help keep the same sound, just at a more reasonable level?
@@veganjoy Very obnoxiously loud, indeed.
Just about any round, straight-through muffler or resonator would help control the tone. The problem I ran into was fitting one large enough to make a big enough impact on volume. It is tricky to fit a long round resonator or muffler along the driveshaft if the car is low, and that is about the only location option you have for fitting something like a 8 or 12 inch straight muffler/resonator.
Chambered mufflers are better at controlling volume than straight-through mufflers but tend to add more back pressure. Whether that is a problem for you or not depends on power goals. If I was looking to quiet it down without concern for back pressure I would be looking at something like chambered flowmasters. Odd for an import I know, but I've used them on a lot of cars, and they always quiet down the car the most while keeping a very deep and controlled tone.
For muffling, bigger is better, and the only place you really have on these cars is behind the rear bumper. I would look for a chambered single entry dual exit muffler similar to the OEM muffler style, but of course a bit smaller chamber. The most important thing for not causing a restriction is making sure the muffler entry and exit is not smaller than the rest of your exhaust. As long as your muffler isn't sized smaller you won't cause any problems other than maybe a loss of a few HP for a chambered muffler versus a free flowing straight through.
In my opinion, start with a good size resonator to help with rasp, then select a muffler after you hear the resonator. Often times removing the rasp makes it much more bearable without having to reduce volume much.
@@BRZoomTX thanks for the detailed writeup! although i'm afraid i dont really know what rasp is or the specifics on resonators or how different ones would sound lol
@@veganjoy Rasp in regards to exhaust typically refers to a "tin can" or "buzzing" sound. Search some straight pipe Honda or other naturally aspirated 4 cylinder videos and you will hear what I mean. Resonators reduce this buzzing sound but do not usually have much or any effect on volume. They just remove the exhaust tones that are harsh on the ears. Most resonators are a straight-through design usually with a certain level of insulation and/or perforations (small holes around the inner exhaust pipe that allow sound to escape into a closed chamber).
Straight-through resonators and mufflers are very similar in design. The main difference is resonators typically do not have as much insulation / sound deadening material. Mufflers on the other hand will have more sound deadening material to help reduce volume more than a standard resonator.
Chambered and other muffler designs focus on reducing volume in combination with changing the exhaust tone. Both resonators and mufflers will affect exhaust tone. Resonators will have more of an effect on rasp and mufflers will have more of an affect on volume.
Of course these are just the general details. There are many different designs for both resonators and mufflers, and all designs will affect volume and tone in different ways. You can also get a different affect on tone by placement of the muffler. For example, having a muffler in the middle of the exhaust system versus at the end of the exhaust near the tail pipe can produce different tones with the same muffler. On top of that, the same muffler will sound a bit different on different engines.
I would say its a lot of trial and error. Watching videos on RUclips helps but I can definitely say you don't get the full affect. It is much easier to hear true exhaust tone in person. Videos make most deep, rumbly exhausts sound much more raspy than they do in person.
Hope that helps a bit. :)
I see an S14 ;) looking good man!
That one is sold unfortunately. We have a s13 now. :)
BRZoomTX A few years back I had a zenki s14, and oh do i miss it.
If we can find one that isn't terribly overpriced, I really do want a kouki.
BRZoomTX Kouki's are beautiful. I wish I could find one around here, I'm currently building an SR S13 Type X, I was lucky enough to find a genuine wing over in japan, I have yet to find taillights
Nice! I don't really like hatches, but the type X stuff is nice. I was thinking of fixing up the coupe and trading for a kouki... I need to finish it first. :(
Lil subie gang and Nissan s14. Yiu got my dream cars
Good taste! :)
The s14 in the video is sadly sold a few years ago. We miss it a lot but we did recently obtain another one. It is just a shell and we have a lot of work to do on it, but definitely not letting it go this time.
@@BRZoomTX hell ya, you got a project and a sexy one at that, you got a insta or anything
@@TOZZIE239 appreciate that. Sadly the BRZ is gone as well as of a few months ago.
Yeah my Instagram is @brzoomtx
@@BRZoomTX still gotta show some support to the car community, we a dying breed now it’s all about electric but I LOVE COMBUSTION
Neighbors must love you.
They do. They make awesome tamales, too! 😁
Hey man love the work you have done to the car i would love to know some feedback on the cx turbo im tryna go turbo and was wondering hows your turbo doing and is it worth it ? Thanks man would really appreciate it
CX kit itself, nah. Go with something more quality. The CX turbo itself blew oil seals in two weeks. Others have reported casting inside the manifold coming off of the manifold and wrecking the turbine wheel. Experience varies, but you are best spending money elsewhere.
Nice!
How wide are your wheels!?
18x9.5 +45, tires are 285/30.
I have speed by design on oft tuner and e85 but my Perrin exhaust is quiet and I can’t drive it because it’s my first car and it has a stage 3 clutch I think and it’s hard for my friends who drive manuals too
The car is just way too quiet stock. I've always driven manuals and I also had issues driving at first. It's difficult to drive a manual without hearing the car.
My first mod was a muffler delete. I highly recommend it as it helped a lot with this. Even aftermarket mufflers are too quiet if you still have the factory front pipe.
You can disconnect the two bolt flange going to your muffler and see how it sounds versus running through your current muffler. If you like it, try out a Berk muffler delete (they have single & dual exit), or have a shop weld you up something with custom tips. Mine was about $120 local with 4" black tips.
Is that just a muffler and rea delete? Or cats also.
Both. It is full 3" straight pipe from the turbo back. No cats, resonator, or mufflers. The new setup will be running mufflers because this was just way too loud for me.
Beautiful BRZ! May I please ask where can I get the same rear diffuser on your BRZ?
Sky Nguyen thank you! It is the OEM Subaru diffuser.
Thank you!
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Still running at 19psi?
Lost a rod after around 3,500 miles at the top of 4th gear (is300 rear end). The car has a built motor now. I'm breaking it in N/A while I figure out a better catch can setup before I throw the turbo back on.
Where did you get this exhaust
Header, downtime, front pipe, and overpipe were all CX Racing. Catback is custom made by a local shop.
what wheels? I love them
They are Advan TCIII, similar to Volk TE37.
What was your longevity of having that much power on a stock motor before building it?
It lasted about 3,000 miles with constant abuse every time it was driven (e85 only, rarely tested under e80-e82 w/ flexfuel). I threw a rod and rebuilt a FA20 out of another car. 300 miles left on the slow break-in and it'll be ready for boost again.
BRZoomTX you have any updated vids?
BRZoomTX Also if you don’t mind me asking. What kind of internals do you have. If you could tell me what you did for internals.
I don't have any updated videos yet since I'm breaking in the motor N/A. Not too much to record atm. ATS built the motor but I installed it at home so I didn't have a dyno for fast break in.
On the build:
JE 10.5 Compression Pistons
Manley Turbo Tuff I Beam Rods w/ ARP rod bolts
GSC Beehive Valve Spring Kit
ARP Head & Main Studs
I went with 10.5 compression versus 12.5 so that I can run decent boost on pump gas (15-20psi), and not keep the car limited to just e85 for power. Once things are dialed in I'll switch back to e85 w/ flex fuel and go for bigger numbers again. The only thing that'll be holding it back now is the transmission.
BRZoomTX does it ride pretty rusty since you breaking it in at the moment?
Boxer 6 engine?
Haha, wouldn't that be great! It is a FA20 NA-T.
did you have a shop do the 3in pipe all the way to the back ?
Yes, it was a custom 3" catback to match the CX Racing 3" exhaust. No cats, mufflers, or resonators.
How much was it to turbo?
Budget $8-10k to do it safely.
that budget includes forged engine parts im assuming since you mentioned 'safely' right?
Nice aggressive tone. I don't think it's good to rev anyways.
Thank you! Not when cold :)