sstrawsb said:
So is the 328 that much faster then the 325? How much the 328s run for now?
Humm think think.. lol
The 325i has 189 hp/181 ft. lbs tq. The 328i 190 hp/207 ft. lbs tq.
Published reports put a manual 93-95 325i at 7.5-7.8 sec. to 60. A 328i is 7.0 sec. for 96, 6.6 for 97-99 (99 was E46 style for sedan, but E36 for coupe).
I think there is a final drive ratio or manual trans ratio difference between the 96 and the 97+ 328s that accounts for the difference, but ICBW. There is a similar discrepancy between the 96 M3s and the 97+.
I found a link to this data before the forum crashed, but I don't know the source of the #s or the transmission type for each car, although I could guess that convertible was an automatic, as was the 93 325i, based on the higher #s.
1992 BMW 325i 7.8 15.8
1993 BMW 325i 8.4 16.5
1993 BMW 325is 7.4 15.7
1994 BMW 325i 7.4 15.5
1994 BMW 325is 7.2 15.9
1994 BMW 325i Conv. 7.3 15.9
1995 BMW 325i 7.7 16.0
1995 BMW 325i Conv. 9.1 16.9
1996 BMW 328i Sport 6.4 15.0
1998 BMW 328is 6.2 14.7
1999 BMW 328i (E46) 6.9 15.2
Depends what you want to do with the car. Stock the 328 is faster, as a result of the bump in torque and the peak torque occuring at a lower rpm. The 325 is capable of greater gains in the aftermarket, as it is OBDI, vs. the 328 being OBDII. The 325 remains the favorite among the club-racer/touring car types.
Keep in mind that 0-60 is deceptive. A stock 325i needs an upshift to 3rd gear to hit 60 mph, while I believe the 328 does not. The upshift adds about half a second to the 0-60 time. Add a Dinan chip to that 325i and you raise the rev limiter (in addition to a few extra hp.), which allows you to hit sixty in 2nd. So, that alone will drop the 0-60 time considerably without regard to whether power has been increased (which it probably has, Dinan says 207 hp, 210 ft/lbs.), but may not really make the car 'faster'.
There are lies, damn lies, and statistics.