InsideLine confirms the next gen M3 will be getting N55 engine?

[shockin330i]

Originally Posted by Scoobe

Bad thing about a 6 cyl T is that there won't be much room for growth. Stretch its power out much more and you're closing in on overstressing unless they stroke it and lower the redline.

The new m3 engine will not be a 3.0T like the current n55. More than likely they will bore it out. 3.2, 3.5 possibly?

[-=Hot|Ice=-]

Originally Posted by Brandon26pdx

Nah I don't see it getting appreciably heavier than the current car. Maybe 100 lbs or so at worst.

That's 100 pounds too much.

[duk]

Originally Posted by shockin330i

The new m3 engine will not be a 3.0T like the current n55. More than likely they will bore it out. 3.2, 3.5 possibly?

or might use a new block? i dont think the n54/55 can be bored out to 3.5 liters?

[MRSSIIM3]

I don't believe it

[swamp2]

Originally Posted by -=Hot|Ice=-

Wishful thinking but not going to happen. If history truly repeats itself, the next gen M3 could go over 4000 pounds.

Absolutely no way. The new gen base 3er is very close to the same size as the existing car. Along with some weight savings due to the engine the car could very well be lighter than the existing one.

[-=Hot|Ice=-]

Originally Posted by swamp2

Absolutely no way. The new gen base 3er is very close to the same size as the existing car. Along with some weight savings due to the engine the car could very well be lighter than the existing one.

With the new tech that this car will carry, I'm sure this car will be porkier then it already is. The next gen 3 is going to grow and that will cause the M3 to grow. BMW can't go overboard with CF because it's expensive and BMW can't bump the price too much because this is suppose to be an affordable sports sedan/coupe.

[swamp2]

Originally Posted by -=Hot|Ice=-

With the new tech that this car will carry, I'm sure this car will be porkier then it already is. The next gen 3 is going to grow and that will cause the M3 to grow. BMW can't go overboard with CF because it's expensive and BMW can't bump the price too much because this is suppose to be an affordable sports sedan/coupe.

I can not quite yet predict the weight of the car. I can not even predict if it will be lighter or heavier than the current car. However, there is pretty good evidence that the car will be very close to the same size. Thus it will be fairly close to the same weight. Also keep in mind that the N54 engine is lighter than the S65 even with its twin turbos and all of that plumbing. With those details in mind all I can conclude is that your prior statement about 4000 lb is incredibly far from what it will actually be. I'll even go further and say you are guaranteed to be hundreds of pounds in overestimation.

[e46e92love]

Originally Posted by swamp2

No big surprise. I buy the rumor. And of course it will not be called the N55...

The engine will have a more power, a lot more torque, not as high of a redline, substantially better throttle response than the 335i but not as good as the E92. It WILL solidly best the current car in any performance metric any of us care about. It will also loose on sound compared to the current car. These points car be virtually guaranteed.

I can tell you SWAMP, that no matter how much power they put in her, and how good the performance times are, it doesn't mean it will be great car.......I just am skeptical about their ability to make a great FI engine within the cost parameters they must work with.


Welcome to corporate America and pretty much any global corporation. Their efforts are made very clear in their reports to shareholders. The terminology is "material cost offensive", "standardized architectures" and "modular systems". I can post an example if you like.

You can't really believe that the only differences between the new top 3er and the new M3 will be a tune and and M badge. Look at the current compare/contrast and ignore entirely the engine. I forget the official stat but something like 80% of the parts are different.

Your right about corporate America, everything is the same, few things are special or standout, and you can line up 100 products with different names from different manufacturers and they are all the f-fing same......really depressing. Going public destroys companies.....because they are then accountable to stupid, short sited investors........this is something I have some experience in. Sorry to go a bit OT.

Cheers,
e46e92

[e46e92love]

Originally Posted by shockin330i

Lol FI has been around for years. I don't hear porsche owners crying, " no not another twin turbo engine!"

Probably because they have N/A variants as well, so you get to choose what you prefer......I think Porsche would loose A TON OF BUSINESS if they went to an all FI line of cars.

Cheers,
e46e92

[shockin330i]

Originally Posted by e46e92love

Probably because they have N/A variants as well, so you get to choose what you prefer......I think Porsche would loose A TON OF BUSINESS if they went to an all FI line of cars.

Cheers,
e46e92

I seriously doubt it, they have a niche market hell even mb has tons of fi cars.

[-=Hot|Ice=-]

Originally Posted by CarAndDriver

"This forced-induction mantra applies to the next M3 as well, which will receive a 400-plus-hp inline-six. Available transmissions across the lineup will include a manual, a torque-converter automatic, and a dual-clutch automatic."

http://www.caranddriver.com/news/spi...os-future_cars

[-=Hot|Ice=-]

Hmm....Another clue?

[Legion5]

This makes no sense. Why not put a detuned S65 in there?

[mrkhanna16]

FAIL

[jonasaurus]

Originally Posted by Brandon26pdx

I don't buy the TT V8 rumors either. They'd want to give some excuse for customers to step up to the 6 series coupe. I6TTT makes more sense. Audi already ditched the V8 for a blown 6 in the S4 for the same reasons.

+1

[BMW269]

In fact why can't the N55 based engine have redline at 8.000 RPM? Because of its long stoke?

S54:
I6
3246 cc
91,0 mm stroke / 87,0 mm bore
343 PS @ 7900 RPM
365 Nm @ 4900 RPM
Redline @ 8.000 RPM

N55:
I6
2979 cc
89,6 mm stroke / 84,0 mm bore
320 PS @ 5800-6000 RPM
450 Nm @ 1300-4500 RPM
Redline @ 7.000 RPM

N63:
V8 90°
4395 cc
88,3 mm stroke / 89,0 mm bore
407 PS @ 5500-6400 RPM
600 Nm @ 1750-4500 RPM
Redline @ 7.000 RPM

S65:
V8 90°
3999 cc
75,2 mm stroke / 92,0 mm bore
420 PS @ 8.300 RPM
400 Nm @ 3900 RPM
Redline @ 8.400 RPM

[-=Hot|Ice=-]

Originally Posted by Levi

In fact why can't the N55 based engine have redline at 8.000 RPM? Because of its long stoke?

S54:
I6
3246 cc
91,0 mm stroke / 87,0 mm bore
343 PS @ 7900 RPM
365 Nm @ 4900 RPM
Redline @ 8.000 RPM

N55:
I6
2979 cc
89,6 mm stroke / 84,0 mm bore
320 PS @ 5800-6000 RPM
450 Nm @ 1300-4500 RPM
Redline @ 7.000 RPM

N63:
V8 90°
4395 cc
88,3 mm stroke / 89,0 mm bore
407 PS @ 5500-6400 RPM
600 Nm @ 1750-4500 RPM
Redline @ 7.000 RPM

S65:
V8 90°
3999 cc
75,2 mm stroke / 92,0 mm bore
420 PS @ 8.300 RPM
400 Nm @ 3900 RPM
Redline @ 8.400 RPM

I don't think they want to. Having to rev an engine to hell doesn't meet the "Efficient" part of "Efficient Dynamics".

[swamp2]

Originally Posted by Levi

In fact why can't the N55 based engine have redline at 8.000 RPM? Because of its long stoke?

Take your argument one step further to the real detail that matters - piston speed . Actually I thing that spec has been posted for most of these engines.

[jml]

Decisions Decision - get in on the last couple months of E90 action and add the dinan 4.6, or wait for the 991.

[jml]

Originally Posted by Levi

In fact why can't the N55 based engine have redline at 8.000 RPM? Because of its long stoke?

S54:
I6
3246 cc
91,0 mm stroke / 87,0 mm bore
343 PS @ 7900 RPM
365 Nm @ 4900 RPM
Redline @ 8.000 RPM

N55:
I6
2979 cc
89,6 mm stroke / 84,0 mm bore
320 PS @ 5800-6000 RPM
450 Nm @ 1300-4500 RPM
Redline @ 7.000 RPM

N63:
V8 90°
4395 cc
88,3 mm stroke / 89,0 mm bore
407 PS @ 5500-6400 RPM
600 Nm @ 1750-4500 RPM
Redline @ 7.000 RPM

S65:
V8 90°
3999 cc
75,2 mm stroke / 92,0 mm bore
420 PS @ 8.300 RPM
400 Nm @ 3900 RPM
Redline @ 8.400 RPM

There is no real reason that can't be overcome by spending R&D money. The real reason is that it's far far cheaper to get power with boost. Dinan increased the stroke to 83mm and offset the inertial issues with a lighter piston.

[BMW269]

BMW has BMW AG and BMW i for Efficient Dynamics. Is a BMW M also meant to be "GREEN"? BMW M should be Extreme Dynamics.

[NYCMCBM3]

Sucks =(