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Can the F30 320i (184hp) tuned to 328i (245hp)

brosiss

brosiss

Well-Known Member
Anyone has any idea about this? Was told by PML the engine and parts the same, except the 328i is tuned up.

Got some info from wikipedia: http://en.wikipedia.org/wiki/BMW_3_Series_(F30)

Model
Engine
Power (@rpm)
Torque (@rpm)
0-100 km/h in seconds
Top speed


320i
2.0 L
184 PS (135 kW; 181 hp) @5000
270 N·m (199 lb·ft) @1250-4500
7.3 (7.6)
235 km/h (146 mph) (230 km/h (143 mph))


328i
2.0 L
245 PS (180 kW; 242 hp) @5000-6500
350 N·m (258 lb·ft) @1250-4800
5.9 (6.1)
250 km/h (155 mph) (250 km/h (155 mph))


335i
3.0 L
306 PS (225 kW; 302 hp) @5800-6000
400 N·m (295 lb·ft) @1200-5000
5.5 (5.5)
250 km/h (155 mph) (250 km/h (155 mph))
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

so boring..
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

Engine same, but not sure if intake/exhaust same. For sure entire drivetrain is different. Gear ratios different, final drive different. Even drive shaft diameter also different.
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

detach8;802516 said:
Engine same, but not sure if intake/exhaust same. For sure entire drivetrain is different. Gear ratios different, final drive different. Even drive shaft diameter also different.
Click to expand...

wow.. pls enlighten
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

Read that 320i has 6 speed gear box, different turbo and probably different brake.
Same engine block but will probably need to change slot of things.
No doubt there will be ppl who will go down that path.

Stock is always best. Once started it will be a free fall into the abyss :)
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

Spec: 320i / 328i
Capacity: 1,997 / 1,997 ; Same
Stroke x Bore: 90.1x84.0 / 90.1x84.0 ; Same
Compression: 11.0 / 10.0 ; Different

I don't have the gear ratios with me now -- I tried searching, can't find either. I think I saw it in the brochure but I left that in the car.
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

seyfeichai;802533 said:
Read that 320i has 6 speed gear box, different turbo and probably different brake.
Same engine block but will probably need to change slot of things.
No doubt there will be ppl who will go down that path.

Stock is always best. Once started it will be a free fall into the abyss :)
Click to expand...


Gearbox should be 8spd

Different brakes also, for sure. If drivetrain different, brakes likely different.

IMHO it is worth the money to just get a 328i (or 528i). The difference in these are already sufficient.
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

All the best Sam...........












cheersssssssssssssssss
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

Thanks Alvin...

The 328i sounds good
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

detach8;802536 said:
Spec: 320i / 328i
Capacity: 1,997 / 1,997 ; Same
Stroke x Bore: 90.1x84.0 / 90.1x84.0 ; Same
Compression: 11.0 / 10.0 ; Different

I don't have the gear ratios with me now -- I tried searching, can't find either. I think I saw it in the brochure but I left that in the car.
Click to expand...

What is compression? What the numbers mean?
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

Congrats on your in-coming F30............................














cheersssssssssssssssssssssssss
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

ac323;803367 said:
Congrats on your in-coming F30............................














cheersssssssssssssssssssssssss
Click to expand...

Thanks. Went for indent stock, Stock Line. Delivery Aug-Sep period.

Cheers..
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

detach8;802536 said:
Spec: 320i / 328i
Capacity: 1,997 / 1,997 ; Same
Stroke x Bore: 90.1x84.0 / 90.1x84.0 ; Same
Compression: 11.0 / 10.0 ; Different

I don't have the gear ratios with me now -- I tried searching, can't find either. I think I saw it in the brochure but I left that in the car.
Click to expand...

I check page 76 of the brochure, the transmission ratios of 320i, 328i and 335i are all different.328i has higher ratio than 320i and 335i has the highest.

They all using the 8 speed ZF transmission. How is the ratio different? A controlling software or hardware difference. What do the numbers mean?
 
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

I think its a different hardware. Same model different sub model. I recall the 320i and 328i have similar ratios in the mid ranges but different in the upper/lower ranges. Its a good move to keep the engine at the optimal power band and optimize for fuel economy or even top speed. The E90 318i and 320i had same gear and final drive ratios. The E90 320/323/325 had all the same gear ratios on the 6sp AT too, just a different final drive. Sometimes the gear seems too tall/short due to the multiplicative nature of the final drive. Eg the first gear of 320i feels too short.

Sorry for the typos. Replyin on my iphone.
 
Last edited by a moderator:
Re: Can the F30 320i (184hp) tuned to 328i (245hp)

OK, scanned the page w/ gear ratios...

cheers
 
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