BRZ STi NA 220-230 hp Rumors

[ngabdala]

Alot of that article has the exact same sentences from the bullshit rumor articles .

I'll believe it when it's announced by Subaru

[Snoopyalien24]

Originally Posted by jonnyozero3

On a car this weight, even 20hp isn't insubstantial. Assuming a weight of 2762 lbs, 20-30hp should be good to knock roughly 0.4-0.6 sec off the 0-60 mph time.

And the STI is rated to actually weigh LESS... soo with different weight, more power, and better wheel sizes, maybe 1 sec faster

Originally Posted by glorydays

Rumor threads suck.

That was the only thing that kept me coming back when the car was being tested. I would check twice - three times a day for nuggets like these.



It builds hype

[Captain Insano]

If it has 230+ hp and loses 125+ lbs.... plus the brakes aero and suspension tweaks it could be pretty good.

[Metabrz]

At first I was like: fuck!! I havent even got my regular BRZ yet.

Then I was like: cool, I'll just trade my BRZ in for the STi when it arrives.

Now I'm like: only if they don't make the BRZ STi like the new Legacy STi.

Subaru has a lot of face to save by putting out a kick butt STi version. I have a hard time seeing them come out with a shitter but you never know.

[jonnyozero3]

Originally Posted by http://www.autocar.co.uk/car-news/geneva-motor-show-2013/toyota-gt86-cabriolet-works

While the cabriolet is yet to be officially declared, the chief engineer of Toyota’s sports cars, Tetsuya Tada, did confirm that a performance version of the GT86 was in the works.

But rather than using forced induction, the honed GT86 is likely to use hybrid drive to provide extra boost without impacting economy. Tada said a GT86 performance hybrid with around 250bhp was in development in Japan, with an on-sale date of 2015 mooted.

Hey look! A rumor with a source. Now we're talking. (Yes I know this is the Toyota and not STi.)

[iLuveKetchup]

Originally Posted by Captain Insano

If it has 230+ hp and loses 125+ lbs.... plus the brakes aero and suspension tweaks it could be pretty good.

This would be ideal! But given the size & weight of modern cars, I don't see how Subaru can drop that much weight on a production car. It's a shame that the BRZ weighs as much as it does. I guess it's "relatively light" (by today's standards ).

[Superhatch]

Originally Posted by iLuveKetchup

This would be ideal! But given the size & weight of modern cars, I don't see how Subaru can drop that much weight on a production car. It's a shame that the BRZ weighs as much as it does. I guess it's "relatively light" (by today's standards ).

To meet today's safety standards/expectations, sound expectations, comfort expectations the cars are just going to be heavier.

Imagine if Subaru/Toyota made a car that was super light? Two air bags, super cheap radio with 2 speakers, no sound deadening.

About 5% of their market would want to buy it. They make these types of cars in the UK and they are all expensive and rare. A true lightweight car from a major company that isn't expensive just ins't going to happen anymore.

[ngabdala]

Agreed. The 2011 Honda Civic Si I got rid of for my BRZ only weighed between 2800-2900lbs. Not much heavier than the BRZ.

I wonder what it is on the BRZ that accounts for the mere 100lbs less than the Si?

Originally Posted by iLuveKetchup

This would be ideal! But given the size & weight of modern cars, I don't see how Subaru can drop that much weight on a production car. It's a shame that the BRZ weighs as much as it does. I guess it's "relatively light" (by today's standards ).

[carbonBLUE]

Originally Posted by iLuveKetchup

This would be ideal! But given the size & weight of modern cars, I don't see how Subaru can drop that much weight on a production car. It's a shame that the BRZ weighs as much as it does. I guess it's "relatively light" (by today's standards ).

Originally Posted by Superhatch

To meet today's safety standards/expectations, sound expectations, comfort expectations the cars are just going to be heavier.

Imagine if Subaru/Toyota made a car that was super light? Two air bags, super cheap radio with 2 speakers, no sound deadening.

About 5% of their market would want to buy it. They make these types of cars in the UK and they are all expensive and rare. A true lightweight car from a major company that isn't expensive just ins't going to happen anymore.

I think the miata is the only cheap car in our weight category...

then you get sesto elemento or what ever it is from lambo.... 2200 lbs with 3x as much hp as us lol... but that things like 2 mil...

[Admiral Ballsy]

I would not be interested in a normally aspirated version with more power. Nothing is free; any additional power is going to have to come at the expense of low-end. Since my car will be a daily driver, I will generally not be spinning it to 8000 on a regular basis.

I would conceptually be interested in a turbocharged version, but I'm almost certain there won't be one, and even if there is it will be priced in such a way that there'll be a lot more competition.

[jonnyozero3]

Originally Posted by Admiral Ballsy

I would not be interested in a normally aspirated version with more power. Nothing is free; any additional power is going to have to come at the expense of low-end. Since my car will be a daily driver, I will generally not be spinning it to 8000 on a regular basis.

I would conceptually be interested in a turbocharged version, but I'm almost certain there won't be one, and even if there is it will be priced in such a way that there'll be a lot more competition.

Please educate me. If they say, bore out the engine to 2.2-2.5L and do some internal work, plus intake/header/exhaust modifications, why will power gains have to be at the expense of the low end?

[Admiral Ballsy]

Who said anything about increasing displacement? Yes, a 2.5L version would be great - but none of the (admitted) rumors suggest more displacement, nor would it play well with CAFE.

The reason more power out of the existing engine requires a loss at the bottom is - there's a finite amount of torque you can get from a conventional IC piston engine. It's about 1.3 ft-lb per cubic inch; sometimes a little more, but 1.3 is a fair high-end approximation. The existing 122CI engine is almost exactly 1.3.

You can move it around, but you can't really increase it. VVT/VVL has done a lot in terms of increasing the RPM range where the peak can be maintained (the current Mustang V8 is a great example of this, as is the 'second peak' in the FA20), but it's not a miracle-worker. If 230HP is the target, it'll have to come at a higher RPM, which will require shifting the torque curve higher.

[jonnyozero3]

I had read some speculation about boring the engine out back during a different flurry of rumors which is why I mentioned it. I wasn't hanging my hat on that, I just used it as an example of a change.

Fair enough though, I was unaware of the ~1.3 ft-lb/i^3 rule of thumb. Good to know. It'll be interesting to see what Subaru decides to do and what tradeoffs they make as they increase power.

[Admiral Ballsy]

I think a NA 2.5 would be killer - that, I would go for. But I'm guessing in the interest of fuel economy it's not gonna happen.

There is a 2.5L version of this engine, isn't there? FB25, or something like that?