Have a look at the Prototype Supra's engine

KahnBB6

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I believe TRD offered a supercharger for the first generation that could be dealer installed but discontinued it in 2009.
^^ This is true, TRD did offer this for the TC. It bumped the naturally aspirated 160hp 2.4L four cylinder from the Camry up to 200hp. For the time (2004+) in a 2900lb coupe (manual) that wasn't too bad.

OP, currently we'll have to wait at the very least until January 14th or so for Toyota to reveal more details about what each trim level available for the USA at launch will be. You will likely have the option only for the automatic for the first model year.

The I6 turbo engine will be a version of the BMW B58 with Toyota's own ECU and tuning. The non-top-line cars are supposed to be tuneable. Just how much beyond existing B58's remains to be seen.

The VERY strongly hinted at TRD/GRMN top of the line serialized Supra that will be released after the initial launch year. This is supposed to have enough of the strength and technology that hardcore MKIV TT fans expect. Exactly how or what nobody knows for sure except those in the know.

But this will not be a high production variant and it will be very, very expensive. How much nobody knows but it's going to be the kind of car you can expect dealers to feel like they don't need to negotiate with you on regarding price. If that is the top of the line model you want you're going to need to have money ready and be fast whenever an opportunity arises. Think Dodge Demon allocation, availability, exclusivity and real world (ie: exceeding suggested MSRP) markup pricing.

There are many threads on the forums that go into greater detail about what rumored specs the engines may have.

Modifying your car for significant power increases in CA will always be a challenge and only continue to be more difficult when it comes to smog. A 2019+ Supra will be easier to do some tuning with in CA under these circumstances to a degree at least as far as the robust ECU flash tuning market allows.

Environmentally the MKV engines have to run a lot cleaner than the US market non-VVT-i 2JZGTE's. The VVT-i versions sold up to 2002 in the JDM Supra and up to 2004-2005 in the JDM Aristo were a little cleaner but even they were eventually retired due to not being able to meet Japanese emissions regulations.
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Dominator19

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It will be interested to see what all this "newly" designed B58 has to offer. There is a reason Toyota/BMW is keeping it such a secret. From the rumor-mill I've been gathering info from, it will be CGI block with the former Yamaha engineers that currently work for Toyota giving the entire motor their TLC. There are also quite a few rumors about the differences between the Supra and Z4 that is more than just software. Guess we will find out in a few weeks!
 

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One thing am counting on is that Toyota will not let this car be the one to put a stain on their reputation as the manufacturer to go to when you need reliability.
 

93Siro

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The I6 turbo engine will be a version of the BMW B58 with Toyota's own ECU and tuning. The non-top-line cars are supposed to be tuneable. Just how much beyond existing B58's remains to be seen.
I highly doubt it's gonna use something other than Bosch Tricore BMW use on other B58 engines. Realoem shows the same part number as X5.
All Bosch DME's are already tuneable and the files are out there with the tuners.
 

sedanlova

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https://www.ibmwclub.com/n/47910
This is the best leak I can find regarding the B58 technical update. It has the most complete information.

Remember Tada's quote on the club4ag interview regarding the A90 at goodwood "it will be the flagship engine for this car"
The author states that the Supra will have a revised engine by Toyota:

It is also worth mentioning that the Toyota Supra, which is on the same platform as the new BMW Z4, does not use this engine, but its body structure is almost the same as that of the B58TU. It belongs to the new engine that Toyota is involved in optimizing the design based on the B58TU structure
 

AsupramkvC

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The author states that the Supra will have a revised engine by Toyota:

It is also worth mentioning that the Toyota Supra, which is on the same platform as the new BMW Z4, does not use this engine, but its body structure is almost the same as that of the B58TU. It belongs to the new engine that Toyota is involved in optimizing the design based on the B58TU structure
That sounds impressive! I had the same thoughts at the start of their partnership with BMW. Why would Toyota spend so much on a sports car if they would just use a BMW engine, transmission, chassis, etc.? Makes no sense. Same case with the 86/BRZ, though it uses Subaru’s 2.0-liter Boxer-4, Toyota incorporated their D-4S direct injection system. Eventually, expect the same with the Supra. It would have something from Toyota; not just entirely BMW. Especially this would be their halo car, so it should deliver, as enthusiasts are expecting something BIG. It has to be as good or even better than the A80 IMO or else....
 

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The author states that the Supra will have a revised engine by Toyota:

It is also worth mentioning that the Toyota Supra, which is on the same platform as the new BMW Z4, does not use this engine, but its body structure is almost the same as that of the B58TU. It belongs to the new engine that Toyota is involved in optimizing the design based on the B58TU structure
So they're using the B58 that got shipped to Japan?:hmm::beer:
 

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Toyotawild

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Oh hai guys here's the engine of the goodwood car.

Screenshot_20180806-231158.png


Look closely at what we can see. Dbw throttle, accessories, piping, ancillary feeds.

Google latest B58.

Not cut and paste, that's for sure. Could be B58TU I suppose, but who knows yet.
What I've read is that the supra will have the exhaust emission scrubbers that Eu requires. The z4 will not in the U.S. hence why the z4 makes more hp.
 

AsupramkvC

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What I've read is that the supra will have the exhaust emission scrubbers that Eu requires. The z4 will not in the U.S. hence why the z4 makes more hp.
Does it mean to say the Supra will have less hp than the Z4 just because it will have a particulate filter(just like the Euro version of the Z4)? What about Toyota’s involvement? What did they actually do to modify / differentiate the engineering(engine) of the Supra vs. Z4?
 

Toyotawild

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From my research which is all youtube videos and articles. Is that toyota did not design a different exhaust like bmw did for the u.s z4. So with the exhaust filter and different tune it lacks a few hp. Easy to gain back plus some for the supra. And supra is lighter than the z4.
I know toyota did there own engine and suspension mapping/tuning and have heard the z4 and supra are definitely different.
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