Auto owners - DSC & DTC off, M1 engaged do you get wheelspin with WOT? - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

AussieRacer · 10-29-2008, 06:24 AM

Sorry for all the acronyms.

My question is for the Aussie 135i Steptronic owners. On a private road, if you switch all traction assistance off, put the car in M1 (so you know you are starting in first gear), and then take your foot straight off the brake and onto the accelerator to wide open throttle are you getting wheelspin off the line?

I've done this a number of times and yielded no wheelspin until the shift to second when I then get some wheelspin. I'm wondering if the car is suffering from turbo lag, or the software issues others have talked about?

Even if I slightly spool up the turbos by holding a bit of brake, I almost have to be doing a burnout before it gives the same sort of burst off the line, as it does with in-gear acceleration. And I suppose that's the real issue I'm trying to work out. Why does the car seem slowish off the line??? Thoughts?

cuizhuoyi01 · 10-29-2008, 06:56 AM

It will spin, i had a try with a demo auto 135i from bmw dealer

when i test drive it, I didn't switch off traction contral, I put to DS gear, and full throttle the car spin out, but the road is a bit wet.

takahashi · 10-29-2008, 07:03 AM

Lateral traction is lost man, does not count.

AussieRacer Dyno yours... hey I saw a blue 135 parked outside a street close to home... where is the private road you talked about??? hehe.

d3syd · 10-29-2008, 07:25 AM

With DSC and DTC off I would have thought that you would get wheel spin at the drop of a hat....:iono:

Alext · 10-29-2008, 09:02 AM

Yes there appears to be a bit of lag (i have a manual too)...definitely doesnt feel like the full 400nm at 1350rpm is available! I think this is a function of the throttle input, which could be played with I suppose.

BBK · 10-29-2008, 05:19 PM

When I demoed the auto the only wheelspin I could get was when flooring it whilst starting to corner... that's with DSC/DTC off.

Wraith · 10-29-2008, 05:25 PM

Get a sprintbooster installed :smile:

Kris · 10-29-2008, 05:26 PM

Dont bother with that booster crapo, Just try and get V31.1 and your lag disappears. I mash the throttle from 1500 in 5th gear, pulls very nicely.

andrew@southernBM · 10-30-2008, 04:11 AM

If you would like, come past and i'll put a Sprint Booster in and you can try it out and make your own decisions. No Obligation as usual.

Otherwise tune it.....:headbang:

AussieRacer · 10-30-2008, 04:29 AM

Quote:

Originally Posted by BBK

When I demoed the auto the only wheelspin I could get was when flooring it whilst starting to corner... that's with DSC/DTC off.

Yep, easy to get wheelspin even in the 120i when doing that!

AussieRacer · 10-30-2008, 04:39 AM

During further testing today on a private road the ar$e squirmed quite nicely in DTC mode, but I'm thinking that 80% throttle off the line for the first few metres and then WOT seems to give the best response from a standing start. Going straight to WOT makes it feel a little bit laggy. But that just seems weird on a car with an electronic throttle! So doubt a sprint booster is the cure.

But thanks Andrew for the offer. Once I get past my 3000km service I'm going to start exploring a few gains here and there.

10-29-2008, 06:24 AM	#1
AussieRacer Major Drives: 2008 135i Join Date: Apr 2008 Location: Aust Posts: 1,057 iTrader: (0)	Auto owners - DSC & DTC off, M1 engaged do you get wheelspin with WOT? Sorry for all the acronyms. My question is for the Aussie 135i Steptronic owners. On a private road, if you switch all traction assistance off, put the car in M1 (so you know you are starting in first gear), and then take your foot straight off the brake and onto the accelerator to wide open throttle are you getting wheelspin off the line? I've done this a number of times and yielded no wheelspin until the shift to second when I then get some wheelspin. I'm wondering if the car is suffering from turbo lag, or the software issues others have talked about? Even if I slightly spool up the turbos by holding a bit of brake, I almost have to be doing a burnout before it gives the same sort of burst off the line, as it does with in-gear acceleration. And I suppose that's the real issue I'm trying to work out. Why does the car seem slowish off the line??? Thoughts? __________________ Current: 135i Auto, Le Mans Blue - w/ Bridgestone RE-11 rears, GP Thunder 7500k angels, & "golf tee" mod plus a few M3 suspension bits and pieces...
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10-29-2008, 07:03 AM	#3
takahashi Retired trackie Drives: 1///M Join Date: Jul 2008 Location: Melbourne, Australia Posts: 1,528 iTrader: (0)	Lateral traction is lost man, does not count. AussieRacer Dyno yours... hey I saw a blue 135 parked outside a street close to home... where is the private road you talked about??? hehe. __________________ TAKA 一仔BLOGブログ: BMW 1 series M 2011! Delivered 18/11/11.

10-29-2008, 07:25 AM	#4
d3syd Major Drives: 135i MT, LMB, ProNav Join Date: Nov 2007 Location: Scamander, Tasmania Posts: 1,475 iTrader: (0) Garage List 2008 135i Coupe [0.00]	With DSC and DTC off I would have thought that you would get wheel spin at the drop of a hat....:iono: __________________ Fun Car: 135i Manual LeMans Blue / Beige Leather / Grey Poplar / pro nav / euro plates. Delivered 24 June 08 Family Car: Land Rover Discovery 4 SDV6 Spare Car: Volvo V70 Sydney Car: MB 420SEL

10-30-2008, 04:11 AM	#9
andrew@southernBM Drives: 135i, M3 E46 SC'd, M5 E39 SC'd Join Date: Apr 2008 Location: Melbourne, Australia. Posts: 1,415 iTrader: (0)	If you would like, come past and i'll put a Sprint Booster in and you can try it out and make your own decisions. No Obligation as usual. Otherwise tune it.....:headbang: __________________ Andrew Brien www.southernbm.com.au andrew@southernbm.com.au 2 Elna Crt Moorabbin 03)9555-4049 SBM FACEBOOK -YouTube

10-30-2008, 04:39 AM	#11
AussieRacer Major Drives: 2008 135i Join Date: Apr 2008 Location: Aust Posts: 1,057 iTrader: (0)	During further testing today on a private road the ar$e squirmed quite nicely in DTC mode, but I'm thinking that 80% throttle off the line for the first few metres and then WOT seems to give the best response from a standing start. Going straight to WOT makes it feel a little bit laggy. But that just seems weird on a car with an electronic throttle! So doubt a sprint booster is the cure. But thanks Andrew for the offer. Once I get past my 3000km service I'm going to start exploring a few gains here and there. __________________ Current: 135i Auto, Le Mans Blue - w/ Bridgestone RE-11 rears, GP Thunder 7500k angels, & "golf tee" mod plus a few M3 suspension bits and pieces...

10-29-2008, 06:56 AM	#2
cuizhuoyi01 EVO Drives: Join Date: Sep 2008 Posts: 193 iTrader: (0)	It will spin, i had a try with a demo auto 135i from bmw dealer when i test drive it, I didn't switch off traction contral, I put to DS gear, and full throttle the car spin out, but the road is a bit wet.

10-29-2008, 09:02 AM	#5
Alext Lieutenant Colonel Drives: B M W Join Date: Apr 2008 Location: Everest Posts: 1,898 iTrader: (2)	Yes there appears to be a bit of lag (i have a manual too)...definitely doesnt feel like the full 400nm at 1350rpm is available! I think this is a function of the throttle input, which could be played with I suppose.

10-29-2008, 05:19 PM	#6
BBK Brigadier General Drives: A boring one... Join Date: Oct 2008 Location: Australia Posts: 3,053 iTrader: (0) Garage List 2009 BMW 135i [2.88]	When I demoed the auto the only wheelspin I could get was when flooring it whilst starting to corner... that's with DSC/DTC off.

10-29-2008, 05:25 PM	#7
Wraith Captain Drives: Join Date: Jun 2008 Posts: 814 iTrader: (0)	Get a sprintbooster installed :smile:

10-29-2008, 05:26 PM	#8
Kris Colonel Drives: m3 Join Date: Jun 2008 Location: USOFA Posts: 2,295 iTrader: (0)	Dont bother with that booster crapo, Just try and get V31.1 and your lag disappears. I mash the throttle from 1500 in 5th gear, pulls very nicely.

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