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View Full Version : new 5er engine/X drive info


andy_thomas
12-21-2004, 06:27 AM
New 5er engine info, from another board, and info on the 4WD 5er:

(For "bei", read "at")

523i 130 kW (177 PS) bei 5800/min 230 Nm bei 3500-5000/min
525i 160 kW (218 PS) bei 6500/min 250 Nm bei 2750-4250/min
530i 190 kW (258 PS) bei 6600/min 300 Nm bei 2500-4000/min

523i 2497 cm 82,0 / 78,8 mm
525 i 2497 cm 82,0 / 78,8 mm
530i 2996 cm 85,0 / 88,0 mm

Interesting that the 2.2 litre six rumoured for the new 3er is not going into the 5er, but instead the 5er will feature a detuned 2.5.

0-100 km/h, top speed and consumption:

523i 8,5 (8,8) sec 235 (227) km/h 8,5 (8,7) Liter/100 km
525i 7,5 (7,8) sec 245 (240) km/h 8,7 (8,9) Liter/100 km
530i 6,5 (6,6) sec 250 (250) km/h 8,8 (9,2) Liter/100 km
525xi 8,3 (8,5) sec 237 (232) km/h 9,6 (9,9) Liter/100 km
530xi 6,8 (7,0) sec 250 (245) km/h 9,7 (10,1) Liter/100 km

Alex Baumann
12-21-2004, 06:46 AM
Interesting, so same engine but different motor management software, I guess. But why ?

jnejman
12-21-2004, 09:50 AM
What is interesting is that my 2001 530i (manual) was rated 0-60 in 6.7 seconds.
And according to your info, future 530i with engine that has over 30hp more, will only do 0-60 in 6.6 seconds. Hmmmm.

andy_thomas
12-21-2004, 10:13 AM
What is interesting is that my 2001 530i (manual) was rated 0-60 in 6.7 seconds.
And according to your info, future 530i with engine that has over 30hp more, will only do 0-60 in 6.6 seconds. Hmmmm.
That's 0-62, not 0-60. Besides, what BMW USA and BMW AG quote are different anyhow. My understanding is that EU performance measurements are taken with a certain amount of weight on board, such that the 0-100 kph times represent an average, not a peak.

Also consider that the EU motor has 231 PS, not 225 hp (SAE); the difference is 24 bhp. And the new engine will probably come with revised gearing; also I think the final drive ratio for the US is most likely lower. These acceleration times should only therefore be used as a very broad guide, not as an absolute measure. You can only compare like for like, and in this instance the 530i's 0-100 kph time goes from 6.9 to 6.5 sec, which is a perfectly reasonable improvement, given that fuel economy has been given a big hike.

andy_thomas
12-21-2004, 10:52 AM
Interesting, so same engine but different motor management software, I guess. But why ?
Torque, possibly? The entry-level engine, the M54B22, is pretty light on torque. If the newer engine has similar characteristics to the other N52 engines - the same peak torque output, but over a wider range, and a higher redline - it will make a poor bedfellow for the 5er's body (despite all that aluminium). According to these figures, the detuned 2.5 (we have been here before!) makes over 10% more torque than the outgoing 2.2, more power at only 5,800 rpm, and has better fuel economy - especially with an automatic gearbox.