BMW M3 E46 - Περιποίηση

[BILL007]

The B3s is a fantastic car and in day to day situations on a give and take road will not loose that much to the E46 M3 and in fact with toque curve it will cause the M3 some difficulty. it is at the top end of the performance that the major difference is seen. But and this is a big but, to make significantly faster progress in the E46 M3 you have to work far harder to extract the performance difference which as you know is not that different (338 BHP (343PS) v 305 BHP and 365 NM v 362 NM - but produced at a lower rev rate)

The other factor is the transmission choice. The B3s was available with both manual and switchtronic gearboxes while the M3 was available with manual and SMG so there are a wide range of transmission options. Switchtronic is indeed a conventional automatic but re-programmed by Alpina, which changes the characteristics including allowing engine braking and in manual mode it changes up or down at the extreme of the rev range.

So in a hard drive with a B3s, the M3 driver has to keep the revs of engine in his car in a narrower power band than the B3s driver due to the nature of both engines characteristics. If you initially look at the figures you can see that they are pretty close with the M3 driver having more power in paper:

E46 M3 (338 bhp at 7900 (red line 8500) 365 nm at 4900)
B3s (305 bhp at 6300 and 362 nm at 4800)

The crucial thing is where the torque is produced in the B3s. Around 90% of the total torque is produced by 2500 rpm which is lower in the rev range than the M3 which makes the performance of the B3s slightly easier to extract than the M3 performance.

So to make use of the extra power that the M3 driver has they have to work the engine harder to extract this extra performance. Add to this the switchtronic vs manual change and the difference on the road is surprisingly little.

Having had a practical demonstration of torque versus bhp in town following a driver who I know very well in an E60 M5 which was fit and healthy. Now on an open road where you can stretch the engine he ran away from me BUT in town it was impossible for him to shake me as to extract the maximum power he had to change gear more, rev the engine and think more about his next move more than I had to following his path even he was supprised at the ease with which my car kept up with the M5 in give and take roads. I have also had similar experiences with other more powerful but higher revving cars.

Πηγή https://www.m5board.com/vbulletin/al...-s-e46-m3.html

[pilot]

Λογικό..η λειτουργία των δυο κινητήρων έχει πολλές διαφορές. Το κείμενο, επίσης, δεν αναφέρει τίποτε για την συνολική αίσθηση που προσφέρουν τα δυο αυτοκίνητα!
Εξάλλου και ένα 335 για π.χ μπορεί πολύ εύκολα να γίνει πολύ πιο γρήγορο από ένα Μ3 Ε9χ και με μπόλικη ροπή από χαμηλά.. αλλά Μ δεν θα γίνει ποτέ! Το Μ3 είναι το κορυφαίο μοντέλο της σειράς 3 όπως και η Μ5 είναι η κορυφαία της σειράς 5 κλπ..δεν νομίζω οτι μπορεί να υπάρξει σύγκριση.