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BRZ Second-Gen (2022+) -- General Topics General topics for the second-gen BRZ


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Old 10-11-2021, 05:18 PM   #183
Simmons
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The dyno numbers make sense because it picked up a second from 0-60. IMHO
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Old 10-11-2021, 05:52 PM   #184
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Hahah
The best part:
“Doesn’t mean that it was not dynoed in California that the numbers aren’t true” (free transcription based on bad memory)
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Old 10-11-2021, 08:47 PM   #185
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Its obvious that the new motor is way better. Thankfully they realized that a small increase in power wasn't going to cut it.
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Old 10-11-2021, 08:57 PM   #186
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Hey @Dezoris,

thanks again for your awesome work.

You mentioned the softness at the front of the BRZ and the lack of feeling at the rear, comparatively speaking to the GR86.

The suspension 'numbers' indicate that its harder at the front and softer at the rear for the BRZ, which I thought would indicate things would be the other way around, if anything.

How much do you think is tire related, and do you think a back to back from the same spec car is something you would do.

Some of us want to see a really direct comparison before we choose this next car. Certainly for me I intend to keep it, so this initial stuff is import (I have deposits on both).
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Old 10-11-2021, 10:43 PM   #187
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I had a similar question and asked him- This was his reply.
https://www.reddit.com/r/cars/commen...eb2x&context=3
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Old 10-12-2021, 12:22 AM   #188
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Originally Posted by trippinbillies40 View Post
I dunno. My butt dyno immediately thought "this is more than a 25hp... increase" so I tend to believe numbers we're seeing.
I would be more open to believe it if the old car was an '12-'16 model which had issues with the tune, but it looks they were comparing it with a '20 (hakone) model. A 47 whp improvement could not be achieved in the old car even with a plain supercharger. Are we saying that the new NA engine is even better to a S/C engine?
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Old 10-12-2021, 01:44 AM   #189
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Hope we get a winter driving review from them in the next couple of months here.
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Old 10-12-2021, 06:21 AM   #190
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Originally Posted by nikitopo View Post
I would be more open to believe it if the old car was an '12-'16 model which had issues with the tune, but it looks they were comparing it with a '20 (hakone) model. A 47 whp improvement could not be achieved in the old car even with a plain supercharger. Are we saying that the new NA engine is even better to a S/C engine?
Huh?
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Old 10-12-2021, 07:03 AM   #191
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Huh?
A plain supercharger without smaller pulley or new exhaust was giving around 40whp. It depends also the vendor, but that was the gain at least for the ones from HKS and Cosworth.
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Old 10-12-2021, 09:52 AM   #192
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A plain supercharger without smaller pulley or new exhaust was giving around 40whp. It depends also the vendor, but that was the gain at least for the ones from HKS and Cosworth.

By "plain" supercharger, I assume you mean an off the shelf kit with a relatively safe carb tune, yes? If that's the case, it's more like 240whp with the stock exhaust and carb tune (JRSC, Edelbrock). Which is about a 70-80 whp increase over a stock car; a significant bump in power imo. This new powerplant seems to bridge the gap between a stock FA20 and mild FI setup FA20, which is something a lot of us have wished for in the first place.
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Old 10-12-2021, 10:15 AM   #193
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Originally Posted by nikitopo View Post
I would be more open to believe it if the old car was an '12-'16 model which had issues with the tune, but it looks they were comparing it with a '20 (hakone) model. A 47 whp improvement could not be achieved in the old car even with a plain supercharger. Are we saying that the new NA engine is even better to a S/C engine?
It would be disappointing to find out these pre-production cars are tuned to bypass emissions and the final cars will lose 10~20 hp. Or they overbuilt the engine and the emissions system and when it came down to it they found they can still push 102.5hp/ liter and still hit emissions requirements. The question is then why they rated the engine so low and not 246hp (.15 drivetrain loss x 246=209, which is what they Dyno'd), if they are hitting those numbers at the crank.
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Old 10-12-2021, 12:22 PM   #194
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Quote:
Originally Posted by mazeroni View Post
It would be disappointing to find out these pre-production cars are tuned to bypass emissions and the final cars will lose 10~20 hp. Or they overbuilt the engine and the emissions system and when it came down to it they found they can still push 102.5hp/ liter and still hit emissions requirements. The question is then why they rated the engine so low and not 246hp (.15 drivetrain loss x 246=209, which is what they Dyno'd), if they are hitting those numbers at the crank.
I think the BRZ was a production unit.

Its probably not a scam.

For what its worth on the toyota side all of the GR products so far have been under-reporting the numbers.

I'm not an expert, but I'd also consider that some some of the tweaks to the car have reduced the loss a few percent as well?
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Old 10-12-2021, 12:25 PM   #195
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Im curious how much quieter it is than the first gen, he seems to be the only one who mentions that.

That and the pricing being practically identical to the first gen makes me wonder if i actually should have waited for the second gen......
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Old 10-12-2021, 01:01 PM   #196
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Driving volume is slightly louder especially on the pilot sports, but not by much. The other part is the engine speaker. Turn the speaker off and run on base tires, it's pretty much the same.
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