E90 325i vs. 330i - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
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#1 (permalink) Old 01-12-2006, 09:17 PM
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E90 325i vs. 330i

Can someone explain to me why BMW have put 3 litre engines in both the 325 and 330?



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#2 (permalink) Old 01-12-2006, 11:09 PM
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I could have swore that the 325 had a 2.5L engine... where you are you getting this information... ? Or am I just stupid.... and everyone else knows this information already?

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#3 (permalink) Old 01-13-2006, 12:23 AM
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Do not be so harsh to yourself LOL
Actually BMW introduced 323i E90 model with 2.5 litre engine and 174 hp.
325i and 330i have both 3.0 litres engines with different power output ,215 hp for 325i and 255hp for 330i.
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#4 (permalink) Old 01-13-2006, 11:01 AM
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I think you mean 225 for the 330.
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#5 (permalink) Old 01-13-2006, 11:23 AM
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No. He meant 255 for the 330i, because that is what it is. We are talking e90s here.

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#6 (permalink) Old 01-13-2006, 11:25 AM
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They are using the same 3 liter engines as in the 525 and 530. The 530 is tuned differently and has different in ternal, hence drawing more power from the same displacement. The z4 will be using the same engines: z4 3.0i and z4 3.0is (255hp).

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#7 (permalink) Old 01-13-2006, 03:04 PM
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Quote:
Originally Posted by drz
No. He meant 255 for the 330i, because that is what it is. We are talking e90s here.
I just caught that. Sorry.
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#8 (permalink) Old 01-13-2006, 04:29 PM
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^^ Having seen the published figures, I agree with you. I can understand them squeezing more HP from the 330, but the torque figure doesn't seem right. I wouldn't be surprised if BMW is under-rating it in order to justify the higher price of the 330.

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#9 (permalink) Old 01-23-2006, 12:30 AM
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the E90 325 and 330 have the same engine blocks both being 3.0L of the magnesium alloy. the 330 has a DISA style intake manifold, the 325's intake is molded the same but the runners are not installed and the electronics are not intalled either. The 330 and 325's DME's have different progamming. You are able to get more torque from the 330 in the difference in intake alone. The only difference in the 330 and the 530's engine is the lack of a secondary air system on the 5 series. Hope you all find this informative

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#10 (permalink) Old 01-23-2006, 07:15 AM
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We must have different engines to the US models, I guess due to emissions?

In Europe the new E90 has a 215hp 2.5 (325i) and a 258hp 3.0 (330i). The 320i is not a 150hp 2.0 4 cyl (the old model had a 170hp 2.2 6cyl).
The 5-series is different, the 525i & 530i have the same 'new' all alloy engines as the E90, but thr 525i has a 174hp version of the old 2.5 unit.
The only other confusing variants are the 550i (4.8) and the 535d (twin turbo version of 3.0 diesel).

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#11 (permalink) Old 01-23-2006, 08:24 AM
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is this coorect then?

us: both 325i and 330i have the same magnesium/alloy block with different power output.

euro: it truly is a 2.5 liter in the 325i. 330i is like the us 330i.
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#12 (permalink) Old 01-23-2006, 09:44 AM
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325i Technical Data

Weight
Unladen 3285 [3351] lbs
Weight distribution, front/rear - Manual Transmission 50.3/49.7 %
Weight distribution, front/rear - Automatic transmission 50.7/49.3 %

Engine
Liter/type 3.0/inline 6
Bore/stroke 3.35/3.46 inch
Nominal output/rpm 215/6250 hp
Max. torque/rpm 185/2750 lb-ft
Compression ratio 10.7 :1
Fuel grade Unleaded premium

Transmission
Manual gear ratios - I/II 4.32/2.46 :1
Manual gear ratios - III/IV 1.66/1.23 :1
Manual gear ratios - V/VI/R 1.00/0.85/3.94 :1
Manual gear ratios - Final drive ratio 3.23 :1
Automatic gear ratios - I/II 4.17/2.34 :1
Automatic gear ratios - III/IV 1.52/1.14 :1
Automatic gear ratios - V/VI/R 0.87/0.69/3.40 :1
Automatic gear ratios - Final drive ratio 3.73 :1

Performance
Drag coefficient 0.30 Cd
Top speed 130 [149] mph
Acceleration 0-60 mph - Manual transmission 6.7 sec
Acceleration 0-60 mph - Automatic transmission 7.2 sec

Fuel Consumption
Manual transmission – City/Highway 20/30 mpg
Automatic transmission – City/Highway 21/29 mpg

Tires, wheels and brakes
Tire dimensions - standard 205/55R-16
Wheel dimensions - standard 16x7.0
Material light-alloy
Brake dimensions (diameter) - Front – diameter 11.8 inch
Brake dimensions (diameter) - Rear – diameter 11.8 inch


330i Technical Data

Weight
Unladen 3417 [3450] lbs
Weight distribution, front/rear - Manual transmission 50.6/49.4 %
Weight distribution, front/rear - Automatic transmission 51.1/48.9 %

Engine
Liter/type 3.0/inline 6
Bore/stroke 3.35/3.46 inch
Nominal output/rpm 255/6600 hp
Max. torque/rpm 220/2750 lb-ft
Compression ratio 10.7 :1
Fuel grade Unleaded premium

Transmission
Manual gear ratios - I/II 4.35/2.50 :1
Manual gear ratios - III/IV 1.67/1.23 :1
Manual gear ratios - V/VI/R 1.00/0.85/3.93 :1
Manual gear ratios - Final drive ratio 3.15 :1
Automatic gear ratios - I/II 4.17/2.34 :1
Automatic gear ratios - III/IV 1.52/1.14 :1
Automatic gear ratios - V/VI/R 0.87/0.69/3.40 :1
Automatic gear ratios - Final drive ratio 3.64 :1

Performance
Drag coefficient 0.30 Cd
Top speed 130 [149] mph
Acceleration 0-60 mph - Manual transmission 6.1 sec
Acceleration 0-60 mph - Automatic transmission 6.3 sec

Fuel Consumption
Manual transmission – City/Highway 20/30 mpg
Automatic transmission – City/Highway 21/29 mpg

Tires, wheels and brakes
Tire dimensions - standard 225/45R-17
Wheel dimensions - standard 17 x 8.0
Material light-alloy
Front – diameter 13.0 inch
Rear – diameter

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#13 (permalink) Old 01-23-2006, 09:49 AM
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Also, these are the following models for the e90 chassis


318i
318d
320i
320si
320d
325i
330i
330d

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