Gene

you guys are aware that the TT's in the N54 engine are made by mitsubishi....

gary8665

Mitsubishi? I thought I smelled rice when I got on it.

Gene

are you trying to be funny? was that meant to be a joke? I seriously hope so, and if it was

sdg1871

BMW dumped the TT I6 in the E60 535 for a single, twin scroll turbo in the F10 535 not because of any reliability concerns but due to European emissions regulations. The first test drives of the F10 535 are now out in the mag car mags this month and the reports are that the new single turbo I6 engine is less punchy off the line than the E60's TT I6 was. The acceleration tests on the F10 535 indicate slower acceleration than the E60 535 from 0 to about 70 mph -- no surprise given that the F10 weighs several hundred pounds more than the E60 and yet BMW did not increase the F10 535's power from the E60 535's power (300 bhp and 300 lbs-ft of torque in both), meaning that the F10 535 has a lower power to weight ratio than the E60 535. Lower power to weight ratio = less acceleration. Not a step in the right direction IMHO for BMW.

As for the F10 550, it will have a twin turbo, 4.4 liter V8 with 400 bhp and 450 lbs-ft of torque, gains of 40 bhp and 90 lbs-ft of torque from the 4.8 liter NA V8 in the E60 550 which produced 360 bhp and 360 lbs-ft of torque. BMW has stated that the 0 to 60 time of the F10 550 will be 5.0 seconds, which is faster than its published 0-60 figure for the E60 550 (BMW's published 0 to 60 figures are always conservative and car mags have tested the E60 550 and clocked 0 to 60 times as low as 4.8 seconds). Accordingly, the F10 550 should accelerate faster and harder than the E60 550 even with the weight gain. I expect that car mags will get 0 to 60 times of as little as 4.5-4.6 seconds. Moreover, I expect that some killer tunes will be available for the F10 550 that will boost bhp to well over 500 (turning up the turbo boost can yield a massive increase in power as the killer tunes for the E60 535's TT I6 have demonstrated).

I think that BMW deliberately decided not to increase the F10 535's power over that in the E60 535 in order to put some meaningful separation in performance between the F10 535 and F10 550. Many E60 550 owners have grumbled that the car's performance is nearly identical to the E60 535 despite the $10K price premium on the 550 over the 535. Now, at least, the F10 550 will enjoy a considerable performance advantage over the F10 535. That may, in turn, encourage more buyers to get the 550.

craigm1841

I think he meant rice as in "ricer" because mitsubishi makes "ricers" like the eclipse. I don't think it was an Asian joke or a derogitory statement. At least that is how I took it.

v_therussian

+1

jcool10181

I think the E60 535i may be a one hell of a sleeper if you know what i mean...

v_therussian

Yep, it'll drive faster than a speeding bullet until one day the hpfp problems start and it has to be euthanized - and its one helluva sleeper

danzanchy

Obviously Mitsubishi kept their best turbo a secret i wouldn't mind a 3.0 with the Evo's turbo in there

bigbadbull

The 2011 X's are now officially dumping the N54 too...

5 hp more at 305hp, but 5 ft/lbs less torque.. 295ft/lbs with it's version of the N55
It's lighter weight than the cast Iron blocked N54, and more efficient....In the X6 this can only help since it tips the scales unloaded at 4900+lbs!

But for the people that think the only reason they are dumping the n54 is for efficiency and emissions... what rock have you all been living under for the past 3-4 years?The HPFP issues are a major knock on BMW's reliability ratings, and long term resale values, both of which are big selling points for BMW in the past. The cost of extending the warranty on that one part for 10 years and 120K miles ain't cheep either for all the E8x/9x/6x cars that are currently on the road .