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Old 08-25-2011, 07:30 AM   #1
TheWatcher
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Default Incredible Aston GT3 racer revealed

Aston Martin Racing has today (24 August 2011) officially unveiled its 2012 GT3 racer. It can be yours for 298,000.

Based on the V12 Vantage, it gets a version of that car's 6.0-litre V12 engine, producing 600bhp and mounted further back in the aluminium composite chassis for better weight distribution.

A six-speed sequential transmission sends power to the rear wheels via a carbon fibre prop shaft, which is housed under a body that's clearly been drinking a lot of Red Bull.

As well as the enormous rear wing, the clearly Photoshopped images from Aston show an ultra- wide body kit, carbon front splitter and racing spec rear diffuser.

It's eligible for all kinds of racing, including the FIA GT3 Championship, the British GT and the Open GT; Aston says it is the only manufacturer to offer a race car for every class.

Testing for the Vantage GT3 starts in October, with first deliveries of the car in early 2012.









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Old 08-25-2011, 11:56 AM   #2
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That`s a lot of venting, but what exactly makes it 'incredible'?
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Old 08-25-2011, 12:53 PM   #3
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its an aston martin that may actually be fast?
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Old 08-25-2011, 01:20 PM   #4
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That Is Gorgeous!
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Old 08-25-2011, 01:53 PM   #5
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I've always been a fan of AM's race cars. These were the best looking Le Mans GT cars when they were running (IMHO):

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Old 08-25-2011, 01:58 PM   #6
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that **** is sick! what's that in US currency?
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Old 08-25-2011, 02:02 PM   #7
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Art in motion.

That's what Aston Martin is all about, without question.
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Old 08-25-2011, 02:51 PM   #8
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Quote:
Originally Posted by PlanB View Post
That`s a lot of venting, but what exactly makes it 'incredible'?
Quote:
Originally Posted by IMPORTIMAGE View Post
its an aston martin that may actually be fast?
Quote:
Originally Posted by e11ys View Post
I've always been a fan of AM's race cars. These were the best looking Le Mans GT cars when they were running
Maybe it's an Aston that can actually finish a race?
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Old 08-25-2011, 02:58 PM   #9
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Quote:
Originally Posted by lark6 View Post
Maybe it's an Aston that can actually finish a race?
BMW will still destroy it.
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Old 08-25-2011, 06:11 PM   #10
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You do realize that all of that venting is to shed heat from a V12 under that hood, right?
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Old 08-26-2011, 04:32 AM   #11
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The new Zagoto is half million
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Old 08-26-2011, 08:19 AM   #12
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Quote:
Originally Posted by HipToBeSquare View Post
You do realize that all of that venting is to shed heat from a V12 under that hood, right?
so V12's require swiss cheese vents, but 1000+ hp V8's are ok?

not sure what you're getting at.
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Old 08-26-2011, 08:29 AM   #13
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Quote:
Originally Posted by robmarch View Post
so V12's require swiss cheese vents, but 1000+ hp V8's are ok?

not sure what you're getting at.
What 1000hp V8's? GT spec classes don't allow anyone to run a 1000hp V8. IIRC GT1 cars were around 600hp and I believe the GT2 cars have always been under 500hp. Obviously there are allowances for weight and displacement, but there aren't any GT cars running around with 1000hp coming from a V8.

Endurance racing is a lot of heat for a long time. Getting that heat away from the motor and engine bay components means they last longer. Everyone gets that heat out somehow.
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Old 08-26-2011, 09:38 AM   #14
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I'm with you, I'm just not sure it's an on/off switch that as soon as you have a V12 under the hood you need to vent it like crazy.

Aston likes hood vents on race cars with V8's too, right?
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Old 08-26-2011, 11:13 AM   #15
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How different companies choose to handle heat management, is up to them.

But the street-spec V12 Vantage has hood vents, too, as does the Zagato-designed version.

That is a very low hood that fits tightly to the engine. The engine also requires under-hood modifications to the radiator frame, and other things, even to FIT the V12.

But my other point was that there isn't a V8 under that vented hood, there is a racing-tuned V12. It also means that horsepower for horsepower, the V12 is probably less stressed than the V8s it competes with, and has better inherent balance. In endurance racing an engine that is not constantly breaking itself down by exceeding it's limits, or shaking itself down, can have advantages beyond a closer firing order, and more latent torque availability from 4 more pistons.

This isn't just an AM Vantage 4.7 Liter V8 in racing clothes. This is a very serious 12 cylinder machine, and has serious heat to shed because of it.
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Old 08-26-2011, 01:17 PM   #16
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if it's less stressed than the v8s' it's competing with, why would it be generating more heat?
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Old 08-26-2011, 05:31 PM   #17
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it is still 12 cylinders compressing air and fuel together.

I didn't say necessarily more heat quantitatively, I said heat in a tighter engine bay, with a lower hood line.

My SVX has a close fitting low hood over a low boxer 6 engine... and it bakes the under hood wiring, hoses, and everything else, and makes all the plastic fittings brittle, because the heat can't go anywhere. I wish my SVX had even just a couple of hood vents up by the cowl, to chimney some heat out of the engine bay.

Twice as much engine, even more tightly fitted into it's engine bay, and the heat issue becomes even more acute, which means that V12 Vantages get hood vents. Racing editions get BIG hood vents.

Just because the AM V12 isn't AS stressed as a V8 putting out nearly as much power, doesn't mean that it is putting out no heat at all. It is still two compression strokes every 60 degrees of crankshaft rotation. Compressing, then combusting all of that creates heat.

But the bearings on the V12 may not be as violently hammered (better primary and secondary balance than a V8, or any other engine, aside from a flat 6, an I6 is close, but a V12 or flat 12 is two I6s counter-balanced.)

The RPM range might not need to be as drastically high to make the given power level, and the metallurgical, physical, and thermal stresses on the block and heads may not be severe by pushing less horsepower per piston, but still producing the same or more horsepower at the end of the crankshaft, in total.
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Old 08-26-2011, 10:38 PM   #18
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It's about downforce, not heat.
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