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Traction from Standing Start
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- Newbie
- Posts: 14
- Joined: Mon Aug 29, 2022 9:30 pm
- Location: Hamilton, Ontario
Traction from Standing Start
Hi All,
just wondered if anybody else with a M40i experiences some traction loss when they accelerate hard from a standing start from traffic lights etc.
Using sport plus, I was a bit surprised that the car didnt hook up straight away, it definitely shifts but not before a bit of sideways movement.
I am in Canada so have the 382bhp power, so particularly curious of others experience with similar power.
I checked the tyres and they seem to have decent tread left.
just wondered if anybody else with a M40i experiences some traction loss when they accelerate hard from a standing start from traffic lights etc.
Using sport plus, I was a bit surprised that the car didnt hook up straight away, it definitely shifts but not before a bit of sideways movement.
I am in Canada so have the 382bhp power, so particularly curious of others experience with similar power.
I checked the tyres and they seem to have decent tread left.
2009-2011: 2003 E85 2.5
2011-2013: 2005 Mustang GT
2013-2017: 2014 Mustang GT
2018-2020: 2017 Focus RS
2020- Now: 2019 F150
2021-2022: 2014 Camaro Z/28
2022- Now: 2020 G29 M40i
2011-2013: 2005 Mustang GT
2013-2017: 2014 Mustang GT
2018-2020: 2017 Focus RS
2020- Now: 2019 F150
2021-2022: 2014 Camaro Z/28
2022- Now: 2020 G29 M40i
- Argyll Andy
- Lifer
- Posts: 5346
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Traction from Standing Start
I’m in the Uk so slightly lower power but on a whole no, I don’t find it loses traction even under very heavy acceleration. The only caveats to that are unless the tread was down on the tyres and I don’t mean legal requirements (1.6mm here) I found anything below 3 mm livened things up immensely and also if the tyre was cold (up to 15 mins to get up to temp)
G29 M40i Thundernight with Ivory interior, all option packs (here for a while, hopefully )
G29 M40i Misano Blue all option packs (Gone 26k of fun)
E89 35iS, Valencia Orange, Design Pure Traction pack (Gone)
E89 23i sDrive, Silver (Gone)
- B21
- Lifer
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Traction from Standing Start
I suspect in sport mode plus you’ve disabled the normal stability control system so it will tend to go sideways as the wheels spin , relatively uncontrolled..after a bit of sideways movement the DCS system will intervene to save you from binning it..
I understand the MP4SS tyres fitted are bit less than grippy when cold..
I understand the MP4SS tyres fitted are bit less than grippy when cold..
Last edited by B21 on Sat Jan 07, 2023 10:27 am, edited 1 time in total.
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
- sars
- Lifer
- Posts: 7039
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- Location: East Yorkshire
Traction from Standing Start
In sport plus, DSC is off and DTC is on, allowing some traction slippage and given that you have 386 lb.ft of torque from 1,500 rpm, your are going to get some slippage. You may also may feel the LSD switching between wheels, which also feels like tail is twitching.
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Gone 2017 Iridium SL400, 2015 435d xDrive Convertible, 2012 E350 CDi Convertible, 2010 DSB Z4 sdrive30i, 2008 Audi A4 Cabriolet, 2006 Phoenix Yellow Z4 2.5Si, 2003 Saab 9-3 Convertible
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- Member
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Traction from Standing Start
Have a UK M40i and yes, I have experienced loss of traction from standing start. The weather and temps plays a big part, obviously. Even suffered traction loss from 40mph-50mph when flooring it. Just physics i suppose.
- StanDiego
- Newbie
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- Joined: Sat Aug 20, 2022 5:09 pm
Traction from Standing Start
Yes, you've pretty much reached the limits with the amount of torque (not horsepower) generated in the M40i in a 2WD vehicle, especially at cold temperatures. The 4 series handles it better in the AWD configuration for obvious reasons but with the penalty of added weight. It's one of the reasons I chose the s30i over the M40i. Even the s30i has enough torque to spin the wheels on quick acceleration. Wider rear tires would help a bit but not completely.
2022 G29 s30i Black Sapphire Metallic / Magma Red / Shadowline / 799M Black spoke wheels "Darth ZEDer"
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- Senior Member
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Traction from Standing Start
Yup. I lose traction on acceleration from standing start. It’s usually because the tyres are cold. The Michelin require temp like no other tyre I’ve had before.
When it comes to changing tyres I think I may go for something better.
When it comes to changing tyres I think I may go for something better.
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OnlineRockhopper
- Senior Member
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Traction from Standing Start
The tread pattern doesn’t give you grip, it’s just for getting water out of the way. Deep tread can actually affect handling as the tread blocks can move around, that why car racers who compete in classes that require road tyres put them in a machine that scrubs most of the tread off leaving them almost like slicks.
If you want less sliding about you need tyres with a stickier compound.
If you want less sliding about you need tyres with a stickier compound.
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- Newbie
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Traction from Standing Start
Thanks everyone for the responses.
my Z/28 had 470lb/-ft of torque through the rear wheels but it also had 305 tyres on it so hooked up quite a bit better, so i think as you ve all suggested its probably a relationship between torque and the stock tyres grip and width.
i had contintental extreme contact on the z28 which were a good tyre, iv also had pilot supersports on a focus rs which i liked as well. For me personally with it being a summer only car i will probably switch to a more performance summer orientated tyre when i next change them and see how much of a difference that makes.
my Z/28 had 470lb/-ft of torque through the rear wheels but it also had 305 tyres on it so hooked up quite a bit better, so i think as you ve all suggested its probably a relationship between torque and the stock tyres grip and width.
i had contintental extreme contact on the z28 which were a good tyre, iv also had pilot supersports on a focus rs which i liked as well. For me personally with it being a summer only car i will probably switch to a more performance summer orientated tyre when i next change them and see how much of a difference that makes.
2009-2011: 2003 E85 2.5
2011-2013: 2005 Mustang GT
2013-2017: 2014 Mustang GT
2018-2020: 2017 Focus RS
2020- Now: 2019 F150
2021-2022: 2014 Camaro Z/28
2022- Now: 2020 G29 M40i
2011-2013: 2005 Mustang GT
2013-2017: 2014 Mustang GT
2018-2020: 2017 Focus RS
2020- Now: 2019 F150
2021-2022: 2014 Camaro Z/28
2022- Now: 2020 G29 M40i
- B21
- Lifer
- Posts: 5453
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Traction from Standing Start
An all season tyre is going to struggle given the weight/power/drive train of the G29..
I think a move to say Conti Sports 7s would make a dramatic change to matters..
I think a move to say Conti Sports 7s would make a dramatic change to matters..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is