2JZ-No-Sh*t
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From his own words, he was also wrong when he said the US Z4 would be the only one to receive the B58B30O1.You do know he was wrong about the 4 banger Supra coming to the US.
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A90 Toyota Supra vs G29 BMW Z4 Drag Race, Rolling Race & Brake Test
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alex2364
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Of course the engine is all BMW but you havenāt shown anything that BMW didnāt give Toyota access to tune various components like engine, transmission, and suspension. Iāve been on Bimmerpost since 2010 and have read ynguldynās posts on a regular basis. He has never said Toyota didnāt tune the engine.
vb22
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Yeah, but overall he has a better track record than Scott26. I'm still waiting on that carbon fiber tub chassis.You do know he was wrong about the 4 banger Supra coming to the US.
white_turbo
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Yeah big * here. But we can at least conclude the Supra is in fact somewhere between 335hp and 380hp. It probably will not be faster than the US Spec Z4 in a drag race.
BRX
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No one is arguing that the engine isn't BMW. We're talking about the claim that the ECU has not been tuned by Toyota. We all know for a fact the Supra is currently pushing more than 335hp. Those figures are a "gentlemen's agreement" between the two companies to rate this B58 variant as 335hp like on every other BMW platform regardless of tune. There is no way in hell the Supra at 3400lbs B58B30M1 is tuned the same as the X5/6/7 at +5000lbs B58B30M1 even though they're 100% mechanically identical and have the same engine code.
The "B58D" won't be any different. It's going to be rated at 382hp but tuned differently for each platform and I would bet Toyota is going to be doing all the tuning for the Supra.
Jabba
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I agree with @BRX. But, at the end of it all the car was tuned differently for the Supra opposed to the Z4. Whether if Toyota techs physically did it or BMW techs. I do find it hard to believe Toyota went through their testing and said, "The car needs more exhaust note, send that guy from BMW an email to re-flash the ECU to add more exhaust crackles."
Yes, when the B58D variant is released I fully expect the HP & TQ rating to be identical to the US Spec Z4M40i. Same parts in the engine, but tuned differently for the Supra. Again, whether if Toyota techs physically changed it or BMW techs....
I believe there are more pressing matters such as whether Ariel in the new little mermaid live-action remake should be black or white (THIS IS A JOKE).
Yes, when the B58D variant is released I fully expect the HP & TQ rating to be identical to the US Spec Z4M40i. Same parts in the engine, but tuned differently for the Supra. Again, whether if Toyota techs physically changed it or BMW techs....
I believe there are more pressing matters such as whether Ariel in the new little mermaid live-action remake should be black or white (THIS IS A JOKE).
justbake
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Because it doesn't prove anything. Just because it is an off the shelf motor, doesn't mean Toyota didn't help the design before it was put on the metaphorical shelf. I am not saying that Toyota did however, just saying that is is not proof by any means
s219
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He doesn't give market breakdowns there. I only ever remember him saying the 30i model "might" come to the US, but then he later said preproduction models were built, but slim chance it would be a US model for 2020. Everything we know about Toyota's 2020 marketing confirms that.
The pre-production information comes from VINs he has access to look at and decode (which also shows they later built a US market Supra with B58D, hinting at the 2021 upgrade). That hints at what has been built for testing/etc. What later happens is a matter of reading the tea leaves inside BMW manufacturing. Nobody on the outside has either type of information. So when I look at the big picture, I consider his information to be high confidence. Everything else we have access to is gossip or at the very least, an order of magnitude lower confidence. It's that simple.
s219
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BMW is historically all over the place with HP ratings on the B58, so this is not new. The B58M in the X3/X4 M40i is rated at 355HP crank by BMW USA but Dinan measured 354HP at the wheels and 445HP at the crank **. This is a common situation with the B58. I don't think there is any extra obfuscation going on due to an agreement with Toyota, since it's already been this way with BMW's own line. Dinan's conclusion (second link below) is that the BMW factory tune is extremely good on the high output B58 variants (they couldn't do much better). BMW dials it back on other models for marketing and model positioning.
** refs
https://x3.xbimmers.com/forums/showpost.php?p=23502398&postcount=212
https://x3.xbimmers.com/forums/showpost.php?p=23512158&postcount=239
Saeedali78
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So much heat in this thread 
Yet, I still believe that Toyota have tuned their car differently. The torque curves on the dyno sheets between the two cars tell a lot.
Yet, I still believe that Toyota have tuned their car differently. The torque curves on the dyno sheets between the two cars tell a lot.
supraboi
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I'm glad you brought that up. Yes, because on the top of the thread he clearly states that everything he is listing is US only.. He also notes that 20i Supra is EU only. That is clearly wrong. The 20i Supra is only sold in Japan. The US, EU, AU, NZ, CDN, and SA are I6 only. Lastly on that thread one of our mods inquired clarification about the Supra's drivetrain. Maybe @Supra93 can chime in.
We have already known about the 4 banger prototypes way before his post. @justbake posted this like a year ago.
https://www.supramkv.com/threads/to...h-2-0l-turbo-4-cylinder-base-model.27/page-15
Again, nothing new.
https://www.supramkv.com/threads/toyota-supra-will-come-in-base-and-track-form.1787/
Captain_Kirk
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One would think that, correct me if I'm wrong but the R35 is pretty aerodynamic despite looking like a fugly @ss brick.
TheDude22386
Member
I want what you're smoking. How in the hell can you sit there and say another manufacturer (BMW) is going to dictate an ECU tune on another brands (Toyota) car. No way in hell did BMW set the tune for it. Toyota would have done extensive testing and tuned it exactly how they wanted with the available ECU giving to them. I don't get why this "BMW tuned their ECU" is your hill you're trying to die on. It doesn't make any sense.
Toyotawild
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The traction control alone how it short shifted into 2nd on the supra makes me think this is programmed differently than the z4.
2JZ-No-Sh*t
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Are we reading the same thread? That was like 3 people. The rest are making excuses because its a heavier roadster vs a lighter coupe and wait for the US Z4 vs the US Supra.
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