BMW Unveils new Bi-Turbo V8 Engine: N64
12-31-2007, 07:20 AM
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12-31-2007, 07:51 AM
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Few Facts:
This is the first eight-cylinder gasoline engine in the world to feature its turbocharger in the V-section between the two rows of cylinders.
The new V8 engine with Twin Turbo technology and direct gasoline injection, is likewise making its world debut in the BMW X6. Displacing 4.4 liters, this eight-cylinder with maximum engine output of 400 hp and peak torque of 450 lb-ft available over an unusually large range of engine speed from 1,800
This is the first eight-cylinder gasoline engine in the world to feature its turbocharger in the V-section between the two rows of cylinders.
The new V8 engine with Twin Turbo technology and direct gasoline injection, is likewise making its world debut in the BMW X6. Displacing 4.4 liters, this eight-cylinder with maximum engine output of 400 hp and peak torque of 450 lb-ft available over an unusually large range of engine speed from 1,800
12-31-2007, 08:30 AM
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Originally Posted by JonBoy,Dec 31 2007, 06:47 AM
BMW knows what they're doing but I'm wondering about all that heat in in the vee of the motor. You've got exhaust (very hot), spinning turbos (also hot), and not a lot of space there. Just wondering what that's going to do in the long run. It's going to be hot in there, that's for sure!
12-31-2007, 08:51 AM
#26
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Originally Posted by ebeldesign,Dec 31 2007, 02:57 AM
If I am interpreting the cutaway model right, is the exhaust dumping into the engine V? And the intake is down where the exhaust ports usually are? That is very clever packaging if so.
12-31-2007, 08:53 AM
#27
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Originally Posted by TheDonEffect,Dec 31 2007, 12:55 AM
Wow, that engine is going to sit really low. Hmm, tuneability is gong to be an issue I imagine as there looks to be no real option for an intercooler...
12-31-2007, 09:45 AM
#28
Originally Posted by Onehots2k,Dec 31 2007, 11:30 AM
That placement will radiate less heat in the engine bay. The surface area is responsible for the heat load in the engine bay, and those small manifolds make for less area. That means heat will be less. The heat is also already high, so it won't heat the intake side of things. One would hope that the engine would be well insulated
Again, as I said, BMW knows what they're doing. I'm just very interested to see how they're managing heat in such a small space. I think this also means that you're not going to be able to up the boost or put in bigger turbos without some serious issues or modifications.
12-31-2007, 10:09 AM
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Originally Posted by ebeldesign,Dec 31 2007, 12:57 AM
If I am interpreting the cutaway model right, is the exhaust dumping into the engine V? And the intake is down where the exhaust ports usually are? That is very clever packaging if so.