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Old 02-25-2012, 08:36 PM   #1
oneday
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Vorschlag/AST/Moton Hands On BRZ

Lots of awesome info here!

Quote:
Originally Posted by Vorschlag

Today Matt and I from Vorshlag and Brian from AST/Moton were able to preview a real live production 2013 Subaru BRZ Limited. This is the Subaru version of the joint Subaru/Toyota "FT86" chassis. I like Subaru a lot mor than Scion, so that's what we wanted to see. The 40+ "pre-release pictures" were taken by Vorshlag on Feb 25, 2012 start here. The BRZs go on sale in a week and should start arriving in early May.

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The folks at Subaru of Plano only had the car for a day, and I had hoped to weigh this thing and get a "real number" on this car. Weight is key to everything for performance, to me. I've read these will be anything from 2600 to 2800 pounds. Big range there. We were also hoping to be able to pull off the front and rear wheels and measure strut and shock lengths as well as look at a few things like that up close. The guy in charge (some random car dealer there) said "no dice". We couldn't drive it, start it, move it, jack it up, but we could open the hood and trunk, and people were allowed to sit inside. Matt and I were the first ones at the dealership to see the car at 9 am today, and Brian Hanchey rolled up shortly after, followed by Sean Goodpasture and some other local folks that heard about this car being on display today.

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We measured all sorts of things and Brian figured out what shocks and strut its going to take (a unique front strut, but not all THAT new), what camber plate it needs (Vorshlag already makes one that works perfectly - but it wasn't what I thought! I brought several we make and quickly figured out which Subaru chassis they stole the front suspension from), and verified some of the published numbers - like wheelbase (101"), total length (167"), etc. I also measured "outer track width" (from outer sidewall to sidewall, not center of tire) and it was over 68" wide, even with the skinny ass 215/45/17 tires! That's a good bit wider than an E36 BMW.

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Take all of the "driving preview" impressions and throw them out the window, because they are meaningless - the factory tires coming on US models SUCK. These pathetic, skinny things are the same tires that come on a Toyota Prius... not kidding. As in "the opposite of performance tires". So it probably spins the rear tires easily and slides around like mad, but its likely making 0.7g lateral on these all weather, super-low-rolling-resistance microtires. Anyone that drives one of these on the factory rubber needs to know that it will make NO GRIP in bone stock form, but with a proper wheel and tire upgrade it should be considerably better. After crawling around and under it for 2 hours I know what its going to take to fit 17x9" wheels front and rear - it won't be super easy, but we'll make it happen, even if it means having a run of wheels custom made.

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The car is begging for negative front camber, needs to be lowered at least 2", and is going to lose a considerable amount of weight with typical track/autocross prep. The rear muffler is a massive suitcase sized box, easily 50 pounds, and there's another resonator upstream (where a proper race muffler will easily fit). The exhaust routing is FUNKY - typical Subaru turbo car routing, with the driver's side manifold routed across the front of the motor (where a turbo would normally go) and into the passenger side, then routed back. Yuck! There will be a market for custom headers and full exhaust systems for NA cars, which should lose 60-80 pounds or more (in STX legal trim) in the exhaust alone.

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Left: The BRZ engine is almost entirely behind front axle centerline. Right: AWD Impreza engine is almost entire in front of front axle centerline

What else... oh, the motor placement really is pretty much perfect, and this chassis was NEVER meant to be an AWD car. Engine is supposed to be 9" further back than a typical AWD Subaru boxer 4, and it looks more like 2 feet further back. The front axle centerline is almost lined up with the front of the motor, unlike most Imprezas and the like (see comparison above).

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The strut tower bracing is simple yet super effective, with stand-offs welded to the strut towers and rods going to the firewall (no wacky top-mounted intercooler in the way); it would be easy to make a 3-point brace using the stock bolt holes. Engine bay is plenty long and wide - you could put an LS1 under the hood if you wanted to, but the oil pan would need surgery and the front of the V8 engine would sit pretty far forward. The battery is huge and begging for a lightweight replacement (-20 pounds). There's tons of room for a FMIC when they make a turbo version (maybe in a year or so). Front end cosmetics are good and the lighting is well done.

...see part 2 below...
After reading Part 2, jump to Post 66 for details about AST's BRZ/FR-S suspension offerings!
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Last edited by oneday; 03-08-2012 at 06:05 PM.
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