Reply With QuoteThat is odd... It seems a bit strange, as you would think the plumbing for everything would be quite convoluted. I wonder how it would affect under-bonnet heat?
BMW's released info on the production of its 4WD coupe. I thought the thing looked funky, or as funky as a fat, high ride height coupe can look.
Source: DriveThe concept was on display in Sydney -- and Frankfurt before that (more here) -- but now the production reality X6 will pick up where the concept left off, at the North American International Motor Show (Detroit) next month.
BMW has obligingly released some information concerning the new car's motive power in advance of the launch in Detroit. It will be available with a choice of three engines, a twin-turbo petrol six developing 225kW, a 210kW variable geometry twin-turbo diesel and a 300kW twin-turbo petrol V8.
However, this is what caught my eye.
I wonder how wide that V is, and how high the two banks are, to fit a pair of turbos and cats between them. You'd also need a bit of plumbing so the compressed intake air could get routed to the intercooler(s), unless its using an air-to-water system or its going intercooler-free.For the sake of packaging and reasons of efficiency, the V8's turbochargers and catalytic converters are nested within the valley formed by the two banks of cylinders.
Speaking of packaging, it also means you couldn't have the block too close to the firewall as you have to allow room for the exhaust, so the engine would sit a little further forward than otherwise.
That is odd... It seems a bit strange, as you would think the plumbing for everything would be quite convoluted. I wonder how it would affect under-bonnet heat?
Must be a pair of tiiiiiny turbos!
Here's an interesting place to put BIIIG Turbo's..
This is Currency Motor's 815hp Twin Turbo BMW M5, more info here:
http://www.egmcartech.com/2007/02/23...15-horsepower/
Yours for only $350k, bargain..
STS does that kind of setup.
They reckon its not laggy at all, which defies conventional wisdom.
I have seen it on a v8 ss too.
It would keep some heat out of the enigne bay i guess
But surely having the turbos so far away from the engine, the exhaust gas would lose most of its heat and velocity and thus make it a really dumb idea.
But it seems to be a trend in the us.
Anyone got any experience with set-ups like this?
This type of turbo fitment was carried out on the BMW M5 due to limited space under the bonnet due to the V10, BMW themselves are reportedly testing a twin turbo version of the M5 they developed themselves, but no idea of the turbo placement (they are going for closer to 570 hp ) so would imagine it would be low mounted in the engine bay closer to the wheel well area.
If there's no room you can't argue with a 300hp+ increase, but otherwise it's one hell of a lot of piping, they even have a secondary oil pump you can see in the pic for the oil feeds to the turbo's.
Guess lag wouldn't be as much of an issue on a large capacity motor like a V8 or V10.
Have seen low mount practically stealth turbo installs on V8 commodores with the turbo's being accessed from under the banks of the motor, but still within the engine bay, either side of the sump closer to the firewall/underbody of the car.
Originally Posted by Taz_350z
The X6 has a face only Chris Bangle could love. It's a butchered X5. BMW are really adding too many models in my opinion. This specific model really doesn't make to much sense at all. If you want a coupe at that price you get the 645. If you want a 4WD you get the X5. This car is a weird hybrid that seems to be trying to be too many different cars in one package.
W...T...F...?Here's an interesting place to put BIIIG Turbo's..
o_O
For more rear-axle mounted turbo shenanigans:
http://www.ststurbo.com/
the fact that V8's and V10's move such a large volume of air, you can mount the turbos quite a distance from the engines it self. dont notice the lag again because of the volume of air the engines move, which in turn spools the turbo quickly, agian reducing lag.
i personally dont like the idea, it may work well but if you up against any decent bump you might lose your turbos
A coupe with 4 doors?
a 4wd with that much power = hazard
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