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Search: Posts Made By: ZDan
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing Today, 06:11 PM
Replies: 21
Views: 640
Posted By ZDan
If you want enough camber to compete on track,...

If you want enough camber to compete on track, you're gonna want camber plates for sure. Or at the very least offset upper mounts and maximum camber bolts. This car *needs* more than 3 degrees...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing Today, 05:40 PM
Replies: 21
Views: 640
Posted By ZDan
RCE Yellows are ~59% stiffer front, ~43% stiffer...

RCE Yellows are ~59% stiffer front, ~43% stiffer rear, not twice as stiff.

In my case, running Swift BRZ Sports which are only 34% stiffer in front, 43% stiffer rear, I did not feel like I had...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 04:26 PM
Replies: 849
Views: 39,397
Posted By ZDan
X-axis "stretch" means you can stay in a lower...

X-axis "stretch" means you can stay in a lower gear for longer! Which can *help* acceleration performance.

From 120 up to ~135mph, you can see that the 2.4 liter with 3.9 gears has a BIG...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 03:37 PM
Replies: 849
Views: 39,397
Posted By ZDan
No you wouldn't! Not even close. "Better"...

No you wouldn't! Not even close. "Better" (numerically higher) gearing does NOT magic you power/weight, which is what determines performance.

I did my own plots of torque-to-the-wheels 2.0 vs....
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing Today, 03:30 PM
Replies: 21
Views: 640
Posted By ZDan
Did you have camber plates too? I find this a...

Did you have camber plates too?
I find this a bit surprising as my only problem was with bump travel. To the small degree I was able to "fix" it (spring spacers brought front ride height up from...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 02:31 PM
Replies: 849
Views: 39,397
Posted By ZDan
CAFE_2017-25_Fact_Sheet.pdf The CAFE standards...

CAFE_2017-25_Fact_Sheet.pdf
The CAFE standards are based on a vehicle’s size, or footprint,8 where every size vehicle has a fuel economy target. Generally, the larger the vehicle footprint, the...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 01:43 PM
Replies: 849
Views: 39,397
Posted By ZDan
1. With 3.9 gearing, the 2.4 will still provide...

1. With 3.9 gearing, the 2.4 will still provide greater torque to the wheels vs. the 2.0 with 4.3 gearing.
2. With greater displacement, probably need to gear a bit taller for mpg

For me, shorter...
Forum: FR-S / BRZ vs.... Today, 01:06 PM
Replies: 13
Views: 488
Posted By ZDan
I am rating 987 design and engineering based on...

I am rating 987 design and engineering based on both 987.1 and 987.2... 987.1 for SURE had inherent engine deficiencies, despite "improved" IMS bearing it is still a failure point, albeit at greatly...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 12:24 PM
Replies: 849
Views: 39,397
Posted By ZDan
Do we have confirmation of transmission and diff...

Do we have confirmation of transmission and diff gear ratios?

With ~20% more torque in most of the rev range, I would have assumed overall gearing at least 5% taller vs. current-gen, not 3%...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 11:06 AM
Replies: 849
Views: 39,397
Posted By ZDan
Yeah, even 300F generally regarded OK for good...

Yeah, even 300F generally regarded OK for good synth.
I don't know my oil pressure :O But judging from data from others, should be sufficient with 30-weight full-synth at 275F...


I always hit...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 09:47 AM
Replies: 849
Views: 39,397
Posted By ZDan
There should be some small benefit from the oil...

There should be some small benefit from the oil coming up to temperature more quickly, particularly in colder ambient temps. If oil temps are still >260F at the track, which seems likely, some...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 08:51 AM
Replies: 849
Views: 39,397
Posted By ZDan
What oil temperature? If my oil temp was...

What oil temperature? If my oil temp was ~250ish, I'd run 0w20. But since it runs 270-275, I run 5w30, which at that temp has the same viscosity as 0w20 at 250.
Chart from this thread shows higher...
Forum: FR-S / BRZ vs.... Today, 08:22 AM
Replies: 13
Views: 488
Posted By ZDan
It was time to let it go, with 240k on the clock...

It was time to let it go, with 240k on the clock and needing a lot of attention. And I was done with the wind noise. Really, a fixed-roof S2000 would be the perfect car for me! BRZ provides the...
Forum: BRZ Second-Gen (2022+) -- General Topics Today, 01:45 AM
Replies: 849
Views: 39,397
Posted By ZDan
That's right, because I've not had need for a...

That's right, because I've not had need for a "new engine"...

272F is not a big deal for oil, running 30 or 40 weight puts viscosity in a decent range, and no, an oil cooler is not necessary to...
Forum: FR-S / BRZ vs.... Yesterday, 05:07 PM
Replies: 13
Views: 488
Posted By ZDan
S2000 is a MUCH better-designed,...

S2000 is a MUCH better-designed, better-engineered car and more fun car to drive than a 987 Boxster. No contest. Better-lookin too... Boxster wins on cabin noise. God I wish they'd made an S2000...
Forum: BRZ Second-Gen (2022+) -- General Topics Yesterday, 10:58 AM
Replies: 849
Views: 39,397
Posted By ZDan
I've never had oil or coolant temp problems with...

I've never had oil or coolant temp problems with my '17 at the track, even on 95F days when my '11 2.9 Cayman would have coolant temp creep up and I'd have to back off after a few laps. Coolant and...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-21-2020, 02:33 PM
Replies: 849
Views: 39,397
Posted By ZDan
The most obvious thing is WHERE IN THE CHRIST IS...

The most obvious thing is WHERE IN THE CHRIST IS MY RED-PAINTED ALUMINUM INTAKE MANIFOLD!

Honestly I can live with it for massively more torque and decently more power and same revs, but dang...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-21-2020, 09:58 AM
Replies: 849
Views: 39,397
Posted By ZDan
The US mags long ago went to 0-60 times "with a...

The US mags long ago went to 0-60 times "with a 1-foot rollout" which shaves a couple/few tenths, which is kinda b.s. to me... I can see doing that with 1/4-mile times/speeds as that's how it's done...
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 11-21-2020, 09:30 AM
Replies: 10
Views: 386
Posted By ZDan
Ooops, I meant Pedders where I said Perrin's... ...

Ooops, I meant Pedders where I said Perrin's... Fixed!
Forum: Suspension | Chassis | Brakes -- Sponsored by 949 Racing 11-21-2020, 08:51 AM
Replies: 10
Views: 386
Posted By ZDan
My impression on road and at the track was that...

My impression on road and at the track was that the PPSachs dampers weren't too underdamped with Swift BRZ Sport lowering springs which are 34%F/43%R stiffer than stock. Highish high-speed...
Forum: FR-S / BRZ vs.... 11-20-2020, 04:14 PM
Replies: 157
Views: 21,192
Posted By ZDan
Thanks, I skipped through 90% of video!

Thanks, I skipped through 90% of video!
Forum: FR-S / BRZ vs.... 11-20-2020, 03:56 PM
Replies: 157
Views: 21,192
Posted By ZDan
Looks like s2k on Hankook RS4, 86 on Michelin...

Looks like s2k on Hankook RS4, 86 on Michelin PS4, Miata on Bridgestone S-04
Probably not a whole lot in the tires, maybe slight nod to RS4 but certainly not 3 seconds worth!
Forum: FR-S / BRZ vs.... 11-20-2020, 02:46 PM
Replies: 157
Views: 21,192
Posted By ZDan
FT86 2 seconds/lap slower than ND2, 3 seconds...

FT86 2 seconds/lap slower than ND2, 3 seconds slower than S2k
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 01:40 PM
Replies: 849
Views: 39,397
Posted By ZDan
https://media.subaru.com/pressrelease/1657/1/all-n...

https://media.subaru.com/pressrelease/1657/1/all-new-2022-subaru-brz-makes-global-debut
215/45 R17 87W Premium
215/40 R18 85Y Limited

I'm hoping that 17s will still clear the...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 12:52 PM
Replies: 849
Views: 39,397
Posted By ZDan
Your problem is that you see anything other than...

Your problem is that you see anything other than "official" manufacturer specs as bogus, and tend to see "official" manufacturer specs as gospel.

Usually I don't believe official factory numbers...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 12:22 PM
Replies: 849
Views: 39,397
Posted By ZDan
Guesses from myself and plenty of other of the...

Guesses from myself and plenty of other of the more knowledgable contributors here are not *random* but based on logic and reason.

We ALL know that nothing means anything to you until the almighty...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 12:05 PM
Replies: 849
Views: 39,397
Posted By ZDan
I can't for the life of me see how that suggests...

I can't for the life of me see how that suggests that the "body height" has shrunk rather than that the whole car came down...

Anyway, speaking of "official" data sources, they ain't always...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 11:27 AM
Replies: 849
Views: 39,397
Posted By ZDan
Connect the dots: Car height is 0.4 inches lower....

Connect the dots: Car height is 0.4 inches lower. Driver is positioned lower. Engine positioned lower. C.g. is lower. All consistent with just lowering the whole sprung car. Occam's razor...
...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 11:04 AM
Replies: 849
Views: 39,397
Posted By ZDan
Sitting "low" in the chassis. It doesn't say...

Sitting "low" in the chassis. It doesn't say sitting lower.

You are so very credulous with "official sources"! Spokespeople and press-release writers don't necessarily know what they are talking...
Forum: BRZ Second-Gen (2022+) -- General Topics 11-20-2020, 10:45 AM
Replies: 849
Views: 39,397
Posted By ZDan
Bolded points are consistent with simply lowering...

Bolded points are consistent with simply lowering the car...
Showing results 1 to 30 of 500

 
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