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-   -   4th gen ND Mazda MX-5 Miata (https://www.ft86club.com/forums/showthread.php?t=73439)

rice_classic 03-17-2015 11:15 PM

Quote:

Originally Posted by DAEMANO (Post 2173031)
2 seconds isn't a marginal difference. With competent drivers it takes a lot of work to find 2 seconds. If it comes to pass that on any track head to head the new Miata is faster than an 86 stock, I'll eat crow pie. At the same time, I'd expect the same from you guys above. ;)

Quoted for posterity.

I own a completely stock FRS. When the new Miata lands I should be able to find someone that will lend me theirs. I am a competent driver with easy access to multiple race tracks and this should be interesting.

Like DarkSunrise mentioned: Miata has better tq to weight and even though the 86 has better HP to weight, the Miata has lower weight.

I'm going to have to side with lightness on this one in my "early-interweb-prediction". HP makes you fast down the straight but lightness makes you fast everywhere. I categorize a track as: straight, brake zone, entry, apex, and exit. The FRS straight-line advantage, I predict, won't be enough to overcome the Miata braking, entry, apex and exit speed advantage.

Why do I think the Miata will have the upper hand in all those other categories?

-Less weight
-Superior front suspension design (aka dynamic camber).

As the owner of the FRS, I really hope I'm wrong because getting beat by a Miata never sits right with me. :lol:

Ultramaroon 03-18-2015 12:58 AM

I still can't fit in one so FRS for the win.

BRZPDX 03-18-2015 01:17 AM

The 86 will never lose to a damn Miata.

ZDan 03-18-2015 06:23 AM

In talking power to weight, you have to include driver weight. Miata is going to be about 16 lb/hp with a 160 lb. driver. FRS/BRZ are 14.5 with same driver weight.

I am all about light weight. But I just don't get 155hp from a 7000+rpm 2.0. WTF, Mazda...

serialk11r 03-18-2015 06:45 AM

Quote:

Originally Posted by ZDan (Post 2173728)
In talking power to weight, you have to include driver weight. Miata is going to be about 16 lb/hp with a 160 lb. driver. FRS/BRZ are 14.5 with same driver weight.

I am all about light weight. But I just don't get 155hp from a 7000+rpm 2.0. WTF, Mazda...

True true.

Wait, is 7000+ rpm confirmed? 155hp at 7000rpm is like 115 ft-lbs of torque (this is probably less than at idle lol), at 6000rpm it's 135 ft-lbs...
http://i40.tinypic.com/20z5z6f.jpg

This is why I keep saying, 155hp is wrong. There are too many things about it that don't make sense. Mazda made a clear tradeoff of torque for fuel economy (it's evident the ultra high CR has knock managed by lower volumetric efficiency cams) but that doesn't explain why the engine has this little power.

Also note the chart says 87 AKI. The Miata is going to take 91 isn't it? It should definitely make more power on 91!

Sideways&Smiling 03-18-2015 02:13 PM

Quote:

Originally Posted by BRZPDX (Post 2173567)
The 86 will never lose to a damn Miata.

Except on a tight autocross course.

Sideways&Smiling 03-18-2015 02:17 PM

Quote:

Originally Posted by tahdizzle (Post 2173050)
I honestly don't think that this miata will be any faster than the last miata.
It will perform just like any other Miata, but I really think that people assume it will be faster because it looks faster.
There is no real data to prove one way or the other.

Other than pure speculation, we have no real figures. Even supposed "First drive" reports are on the Euro version.

It's front-mid like the NC but with a curb weight like the NA/NB..... with refined, modernized suspension geometry (which was already good to begin with) and a stiffer chassis. It's going to be faster.

tahdizzle 03-18-2015 02:28 PM

Quote:

Originally Posted by Sideways&Smiling (Post 2174181)
It's front-mid like the NC but with a curb weight like the NA/NB..... with refined, modernized suspension geometry (which was already good to begin with) and a stiffer chassis. It's going to be faster.


Still all speculation.

strat61caster 03-18-2015 03:59 PM

Quote:

Originally Posted by tahdizzle (Post 2174196)
Still all speculation.

Below are quotes from Mazda: link

"Front-midship engine rear-wheel-drive configuration achieves an ideal 50:50 front-rear weight distribution."

"The engine is located closer to the vehicle’s center, the hood, trunk lid, front fender and front and rear bumper reinforcements are made of aluminum, and the weight of the soft top is reduced. These combine to realize a lower yaw inertial moment and a lower center of gravity."

"New lightweight, yet highly rigid, suspension fully leverages the know-how of SKYACTIV Technology, with a double-wishbone suspension in the front and multilink suspension in the rear."



And to dredge up the "ND vs 86" comparison, in Motortrend's 2013 vs the Miata was a hair better than the FR-S in terms of acceleration, lateral g's, quarter mile, and braking. You could blame the Primacy, but those Potenza's can be upgraded as well...
http://www.motortrend.com/roadtests/...son/specs.html

tahdizzle 03-18-2015 05:11 PM

You are still SPECULATING that it will be faster.

There is no evidence one way or the other. On paper it doesn't even give concrete evidence that it WILL be faster. ~120 lbs of weight reduction and an addition 10 ft*lbs of torque does not mean it WILL be faster. You can only SPECULATE that it WILL be faster.

Now that we have a clear understanding of what you are SPECULATING at, I can continue to say that I don't think it will be any faster than the out-going NC miata.

tahdizzle 03-18-2015 05:23 PM

You are cherry picking data.

as for the miata vs. twins comment.
You are assuming that twins want better rubber than the miata. Which is also not true. Twin owners are simply stating that given equal rubber, it would be a more fair comparison.

You are also comparing a "Club Sport" Miata to a twin. Now there are always the "well it comes from the factory, so its a fair comparison" arguments.

I am not from that camp. Even when I drove my scion I found it very biased to cars with multiple trims to compare a base model vehicle to a sport trim vehicle.

Base FR-S to a Base miata.

Where is that comparison?

totopo 03-18-2015 06:10 PM

Quote:

Originally Posted by tahdizzle (Post 2174517)
You are cherry picking data.

as for the miata vs. twins comment.
You are assuming that twins want better rubber than the miata. Which is also not true. Twin owners are simply stating that given equal rubber, it would be a more fair comparison.

You are also comparing a "Club Sport" Miata to a twin. Now there are always the "well it comes from the factory, so its a fair comparison" arguments.

I am not from that camp. Even when I drove my scion I found it very biased to cars with multiple trims to compare a base model vehicle to a sport trim vehicle.

Base FR-S to a Base miata.

Where is that comparison?

This is a pretty silly sentiment. Of course you should look at the appropriate packages. But of course you should look at the respective price of the car with each package. Why the he'll can't you compare sports versions with other cars, especially if that's what you are interested in? so when you talk about a z4 you are only allowed to talk about the 28 and not the 35is? Are you only allowed to talk about the Cayman and not the Cayman S?

It would be silly to say x car is cheaper AND faster because the base car is cheaper and the loaded car is faster. But why the he'll can't you compare both a sports and a club miata with each other and other cars? They both maintain a factory waranty

DAEMANO 03-18-2015 06:17 PM

Quote:

Originally Posted by totopo (Post 2174612)
This is a pretty silly sentiment. Of course you should look at the appropriate packages. But of course you should look at the respective price of the car with each package. Why the he'll can't you compare sports versions with other cars, especially if that's what you are interested in? so when you talk about a z4 you are only allowed to talk about the 228 and not the 335is?

It would be silly to say x car is cheaper AND faster because the base car is cheaper and the loaded car is faster. But why the he'll can't you compare both a sports and a club miata with each other and other cars? They both maintain a factory waranty

Reason why is that you want to keep the comparison as apples to apples as possible. There is no additional performance version of the FR-S so why try to compare it vs an uprated performance Miata? Why to skew the conclusion in favor of the Miata of course.

Think "base" Porsche Cayman vs. Cayman GT4. They both say Cayman, right? Same car technically... Nope, not close.
[ame="https://www.youtube.com/watch?v=L9-Sr8RPty4"]Chris Harris on Cars - Porsche Cayman GT4 full test - YouTube[/ame]

tahdizzle 03-18-2015 06:19 PM

Quote:

Originally Posted by totopo (Post 2174612)
This is a pretty silly sentiment. Of course you should look at the appropriate packages. But of course you should look at the respective price of the car with each package. Why the he'll can't you compare sports versions with other cars, especially if that's what you are interested in? so when you talk about a z4 you are only allowed to talk about the 228 and not the 335is?

It would be silly to say x car is cheaper AND faster because the base car is cheaper and the loaded car is faster. But why the he'll can't you compare both a sports and a club miata with each other and other cars? They both maintain a factory waranty

That is a silly statement in itself. We're not talking about 10s of thousands of dollars here. So a couple grand is immaterial in the comparison.

You're example is also silly.

Hmm, lets see compare a z4 to a sedan... yes because they are very similar.

I'm saying Comparing lets say a C-250 to a M235i BMW. Thats an asinine comparison. A fair comparison would be a c-250 to a 228i.


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