Info on Supra?

I put a deposit on the Launch Edition, and I'm wondering if anyone has an info on if I have to go install an oil catch can or if it comes with it. And if it comes with BOV or Diverter valve? Sorry if it's a silly question lol
BTW I'm in the east coast so if anyone wanna cruise or convoy I'm so down once the Supra gets delivered near August!

It does not have one but why would you install an oil catch can? If it needed one it would have it.

It will have a recirculating BOV/Diverter valve

Blow-off valve
A blow-off valve is not used in current models. Pressure peaks, caused by sudden load shedding due to the inertia of the turbine of the exhaust turbocharger, can be avoided by careful tuning of the Digital Motor Electronics software. With foresighted charging pressure control, pressure peaks can be predicted and reduced by quick adjustment of the electrically-adjustable wastegate valve. Assisted by a delayed load control of the Valvetronic (in the minimum lift direction) or the throttle valve (in the closed direction), the remaining charge air which is produced can be routed to the exhaust emission system via the engine. This form of control thus prevents the exhaust turbocharger shaft from being exposed to excessive torsional stress due to high pressure peaks.

justbake said:

It does not have one but why would you install an oil catch can? If it needed one it would have it.

It will have a recirculating BOV/Diverter valve

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Because with direct injection you don't have fuel from injectors in the intake runners to clean off the crud/oil that gets into the intake valve ports and onto the valves. A catch can can help mitigate this.

Illsic_Design said:

Because with direct injection you don't have fuel from injectors in the intake runners to clean off the crud/oil that gets into the intake valve ports and onto the valves. A catch can can help mitigate this.

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I understand the logistics of a catch can.

But with a catch can you add and extra maintenance item to check along with your bay smelling like oil instead of blasting the valves every 100k miles aka twice throughout the car’s lifetime. This isn’t an N54 where I needed to do this every 30k miles

DesmoSD said:

Blow-off valve
A blow-off valve is not used in current models. Pressure peaks, caused by sudden load shedding due to the inertia of the turbine of the exhaust turbocharger, can be avoided by careful tuning of the Digital Motor Electronics software. With foresighted charging pressure control, pressure peaks can be predicted and reduced by quick adjustment of the electrically-adjustable wastegate valve. Assisted by a delayed load control of the Valvetronic (in the minimum lift direction) or the throttle valve (in the closed direction), the remaining charge air which is produced can be routed to the exhaust emission system via the engine. This form of control thus prevents the exhaust turbocharger shaft from being exposed to excessive torsional stress due to high pressure peaks.

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Desmo is correct. B58’s only make a weird fluttering sound when you lift off. It’s kind of like turbo flutter but much quieter and softer sounding.

Illsic_Design said:

Because with direct injection you don't have fuel from injectors in the intake runners to clean off the crud/oil that gets into the intake valve ports and onto the valves. A catch can can help mitigate this.

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I'm pretty new to force induction because my first and current car is NA. So my friend said that the first thing I should get is a Catch can to make sure the carbon build ups and oil won't get all crusty, what do you think?

kona61 said:

Desmo is correct. B58’s only make a weird fluttering sound when you lift off. It’s kind of like turbo flutter but much quieter and softer sounding.

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Is that tiny flutter noticeable? Because I really don't like the sound of a car "giggling".

BigTeamBattles said:

I'm pretty new to force induction because my first and current car is NA. So my friend said that the first thing I should get is a Catch can to make sure the carbon build ups and oil won't get all crusty, what do you think?

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From a logistical standpoint, if a brand new car with 0 miles needs something to run effectively then it would have been added from the factory. Considering no cars have them from the factory shows you don't need it.

From a preventive maintenance standpoint, it will lessen the oil being sent through the intake tract. It will also mean you have to check the can periodically.

From a peace of mind standpoint, I understand no one wants to have to worry about their car. But this is carbon build up, your car won't start knocking one day because of build up. If you notice build up, it is still a non issue that only decreases performance marginally until you decide to clean the valves. You can even wipe most of it out with a rag and TB cleaner.

From an owner's standpoint and relating to your comments, I wouldn't say it should be the first thing to get especially when it is a new car with a warranty that may be voided when do so thus being more harm than good.

After having one on my N54 E92 (FBO), I absolutely hated getting out of a newer car just to have it smell like a beater If this were an older DI car, like the N54, I would say yes to getting one. But on the B58 I say a hard no.

BigTeamBattles said:

Is that tiny flutter noticeable? Because I really don't like the sound of a car "giggling".

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With an intake, it'll giggle and won't sound like the previous "Supra"

justbake said:

From a logistical standpoint, if a brand new car with 0 miles needs something to run effectively then it would have been added from the factory. Considering no cars have them from the factory shows you don't need it.

From a preventive maintenance standpoint, it will lessen the oil being sent through the intake tract. It will also mean you have to check the can periodically.

From a peace of mind standpoint, I understand no one wants to have to worry about their car. But this is carbon build up, your car won't start knocking one day because of build up. If you notice build up, it is still a non issue that only decreases performance marginally until you decide to clean the valves. You can even wipe most of it out with a rag and TB cleaner.

From an owner's standpoint and relating to your comments, I wouldn't say it should be the first thing to get especially when it is a new car with a warranty that may be voided when do so thus being more harm than good.

After having one on my N54 E92 (FBO), I absolutely hated getting out of a newer car just to have it smell like a beater If this were an older DI car, like the N54, I would say yes to getting one. But on the B58 I say a hard no.

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There must have been something wrong with your setup then... I have had the RB turbo high side catch can on my FBO N54 for 60k+ and my car does not smell like oil. Unless your catch can was vented to atmosphere?


I agree though a catch can probably isn't as necessary on the B58. Since the N55 onwards we have seen that they don't get as much oil into the intake tract as the previous N54 setup.

Illsic_Design said:

There must have been something wrong with your setup then... I have had the RB turbo high side catch can on my FBO N54 for 60k+ and my car does not smell like oil. Unless your catch can was vented to atmosphere?


I agree though a catch can probably isn't as necessary on the B58. Since the N55 onwards we have seen that they don't get as much oil into the intake tract as the previous N54 setup.

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Yes this was also many years ago before the weak pcv system was understood. I also had blown turbo seals (misdiagnosed as a bad wastegate so the turbo wasn't fixed) with a catless HKS system so I had two sources of smells that I was throwing money at to fix. I used a I later upgraded to the BMS unit if you wanted the story of it lol.

Exactly. I have yet to see any tests to show the N55/B58 need one. Yes the companies that sell them say so by showing oil in the can but that doesn't prove that the oil collected would have been enough to cause any issue whatsoever.

justbake said:

From a logistical standpoint, if a brand new car with 0 miles needs something to run effectively then it would have been added from the factory. Considering no cars have them from the factory shows you don't need it.

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Ehh.. If only that were true.. Elaborate PCV, EGR, etc.. solutions are developed by OEM's purely for emissions requirements. Emissions aside, short or long term, there is absolutely zero benefit to recirculating oil mist and hot exhaust gases back into the intake. It's ultimately detrimental to performance and reliability. Obviously you don't "need" a catch can; however, you would be surprised at how quickly things start getting crusty inside the parts exposed to the 'dirty' air.

AHP said:

Ehh.. If only that were true.. Elaborate PCV, EGR, etc.. solutions are developed by OEM's purely for emissions requirements. Emissions aside, short or long term, there is absolutely zero benefit to recirculating oil mist and hot exhaust gases back into the intake. It's ultimately detrimental to performance and reliability. Obviously you don't "need" a catch can; however, you would be surprised at how quickly things start getting crusty inside the parts exposed to the 'dirty' air.

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I never said it wasn't beneficial. All I said was the cons outweigh the pros to me

justbake said:

From a logistical standpoint, if a brand new car with 0 miles needs something to run effectively then it would have been added from the factory. Considering no cars have them from the factory shows you don't need it.

From a preventive maintenance standpoint, it will lessen the oil being sent through the intake tract. It will also mean you have to check the can periodically.

From a peace of mind standpoint, I understand no one wants to have to worry about their car. But this is carbon build up, your car won't start knocking one day because of build up. If you notice build up, it is still a non issue that only decreases performance marginally until you decide to clean the valves. You can even wipe most of it out with a rag and TB cleaner.

From an owner's standpoint and relating to your comments, I wouldn't say it should be the first thing to get especially when it is a new car with a warranty that may be voided when do so thus being more harm than good.

After having one on my N54 E92 (FBO), I absolutely hated getting out of a newer car just to have it smell like a beater If this were an older DI car, like the N54, I would say yes to getting one. But on the B58 I say a hard no.

Click to expand...

Thank you very much! You have convinced me to not do with catch can for now. If there is a first thing I should do on the car (besides drive it moderately normal within break in period), what would you recommend?