Less lag on 2015 328s?

teapain · 07-06-2015, 03:30 PM

just noticed on BMWUSA website claims 2015 328i's 255lb/ft torque is available at 1250rpm to 4800rpm...which doesnt sound remotely like the 2012 N20 i have, as well as, the dyno charts out there on N20/26.

Those with 2015s, when does the party start for you all? Mine doesn't happen til 2500rpm...which kinda suck. I'd run to my dealer to find out but on vacation atm.

K320 · 07-06-2015, 03:42 PM

Put some stage1 and lag is gone.

David9962000 · 07-06-2015, 03:48 PM

Try driving it in DS instead of D it keeps the engine in the torque band.

Bassthe1st · 07-06-2015, 03:55 PM

Quote:

Originally Posted by teapain

just noticed on BMWUSA website claims 2015 328i's 255lb/ft torque is available at 1250rpm to 4800rpm...which doesnt sound remotely like the 2012 N20 i have, as well as, the dyno charts out there on N20/26.

Those with 2015s, when does the party start for you all? Mine doesn't happen til 2500rpm...which kinda suck. I'd run to my dealer to find out but on vacation atm.

Torque numbers have nothing to do with lag. You feel like torque can't come on fully because of the lag and the engine reving too fast, but if you were to let say start in 5th gear at 10Mph, by the time you get to 1250rpm you should have full boost, though it's worthless.

CalCarNut · 07-06-2015, 04:50 PM

If you're just coming off the brake pedal, there's some noticeable turbo lag off idle but the car seems to go fairly quickly. Pre-load it a bit to get it on boost and it'll take off. I still haven't just flat out stomped on the go pedal yet to test the car..(now with about 2200 miles). They're quick for 4-pots..

Buckeyes · 07-06-2015, 06:54 PM

It's there at 1250 rpm but you have to brake boost to get the turbo going to build boost. All turbos have some lag do to how they work, unless you use an electric turbo to start things off.

Thumper333 · 07-07-2015, 06:29 PM

The twinpower design does help minimize lag.

If you want to feel better about turbo lag, when you get home go out and test drive a S3. Trust me, you will have no issues with the lag in yours.

CalCarNut · 07-07-2015, 07:38 PM

Quote:

Originally Posted by Thumper333

The twinpower design does help minimize lag.

If you want to feel better about turbo lag, when you get home go out and test drive a S3. Trust me, you will have no issues with the lag in yours.

True. I drove the S3 before getting my GC. The first thing I noticed was the major lag it had. It'll go like hell though after with 290hp..but how often do you do that?

07-06-2015, 03:30 PM	#1
teapain First Lieutenant 147 Rep 368 Posts Drives: 2016 340i XDrive Join Date: Jun 2014 Location: Seattle, WA iTrader: (2)	Less lag on 2015 328s? just noticed on BMWUSA website claims 2015 328i's 255lb/ft torque is available at 1250rpm to 4800rpm...which doesnt sound remotely like the 2012 N20 i have, as well as, the dyno charts out there on N20/26. Those with 2015s, when does the party start for you all? Mine doesn't happen til 2500rpm...which kinda suck. I'd run to my dealer to find out but on vacation atm. Last edited by teapain; 07-06-2015 at 03:35 PM..
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07-06-2015, 03:42 PM	#2
K320 First Lieutenant 131 Rep 350 Posts Drives: G01-X3 30i MSport Join Date: Aug 2013 Location: Puerto Rico iTrader: (0)	Put some stage1 and lag is gone.
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07-06-2015, 03:48 PM	#3
David9962000 Captain 77 Rep 683 Posts Drives: Bayerische Motoren Werke Join Date: Aug 2009 Location: Los Angeles, CA iTrader: (1)	Try driving it in DS instead of D it keeps the engine in the torque band.
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07-06-2015, 04:50 PM	#5
CalCarNut Brigadier General 1061 Rep 3,258 Posts Drives: 2015 F36 Jet Black Sport Line Join Date: Apr 2015 Location: Blue Skies iTrader: (0) Garage List 2012 BMW X3 [0.00] 2015 BMW 428i Gran ... [10.00] 1996 Chevrolet Impa ... [8.00]	If you're just coming off the brake pedal, there's some noticeable turbo lag off idle but the car seems to go fairly quickly. Pre-load it a bit to get it on boost and it'll take off. I still haven't just flat out stomped on the go pedal yet to test the car..(now with about 2200 miles). They're quick for 4-pots.. __________________ 2015 BMW F36 428i JetBlack. Sport Line Edition 25% 3M Tint\|
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07-06-2015, 06:54 PM	#6
Buckeyes Captain 353 Rep 939 Posts Drives: 2013 335i M Sport Join Date: Jan 2013 Location: Atlanta iTrader: (2)	It's there at 1250 rpm but you have to brake boost to get the turbo going to build boost. All turbos have some lag do to how they work, unless you use an electric turbo to start things off.
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07-07-2015, 06:29 PM	#7
Thumper333 Captain 299 Rep 693 Posts Drives: 2018 M240i X-Drive Join Date: Jan 2015 Location: Colorado iTrader: (0)	The twinpower design does help minimize lag. If you want to feel better about turbo lag, when you get home go out and test drive a S3. Trust me, you will have no issues with the lag in yours. __________________ 2018 M240i X-Drive \| Sunset Orange Met 2015 328d X-Drive Touring M-Sport (Traded) 2015 Audi S4 Sepang Blue P+ \| DSG \| Tech Package \| Adaptive Suspension \| B&O 2015 Audi S3 Misano Red \| 19" Sport pack w/Mag Ride \| B&O 1983 Porsche 944 All stock
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