ZHP LSD

MmmmmM2 · 03-31-2019, 06:51 PM

I've never had an LSD on any of my cars, but WOW what a difference it makes in cornering! You can pretty much get away with anything when throwing this car around corners! I love it!

NYG · 03-31-2019, 07:14 PM

How exactly does a posi-trac rear end on a plymouth work?

IT JUST DOES

MmmmmM2 · 03-31-2019, 07:54 PM

Quote:

Originally Posted by NYG

How exactly does a posi-trac rear end on a plymouth work?

IT JUST DOES

Haha

NYG · 03-31-2019, 08:12 PM

Are you planning on taking the car to the track?

MmmmmM2 · 03-31-2019, 08:23 PM

Quote:

Originally Posted by NYG

Are you planning on taking the car to the track?

Hadn't thought about it but maybe!

NYG · 03-31-2019, 08:53 PM

Quote:

Originally Posted by F30ZHP

Hadn't thought about it but maybe!

Worth it. I'm just getting into it, regret not starting sooner.

upsidedownfunnel · 04-01-2019, 12:15 AM

The feeling of an open diff sucks. All the 6 cylinder cars should have had at least a simple clutch type LSD or at least bolted differential gears to make upgrading easy.

mwisel · 05-02-2019, 09:47 AM

Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks

mwisel · 05-02-2019, 09:57 AM

Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks

jparnes1 · 05-02-2019, 10:11 AM

Quote:

Originally Posted by mwisel

Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks

With an lsd, the wheels will turn in the same direction.

_tlink · 05-02-2019, 10:22 AM

Quote:

Originally Posted by mwisel

Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks

An LSD makes it so both wheels receive that same amount of power at the same time. The way you describe the behavior it is not an LSD. Check your VIN if it came with the car from factory, if not get under the car and cross reference the part number on your diff if its visible.

MmmmmM2 · 05-02-2019, 11:24 AM

I definitely have the LSD on my car as it shows on my window sticker and I notice it when driving. I also have an email from BMW stating it has the LSD. Are you sure it's not there?

tonksie93 · 05-02-2019, 12:24 PM

How does this compare to the eLSD which is only activated when in DSC OFF mode?

Littlebear · 05-02-2019, 12:48 PM

Quote:

Originally Posted by _tlink

An LSD makes it so both wheels receive that same amount of power at the same time. ....

I think that would be a locked diff. A limited slip diff gives a percentage of power to the less connected wheel. I think percentages for road cars are ~ 10% to 40%?

Murf

dbright03 · 05-02-2019, 03:19 PM

Quote:

Originally Posted by tonksie93

How does this compare to the eLSD which is only activated when in DSC OFF mode?

My understanding is that the eLSD on the 340i attempts to act like an LSD by using your brakes. If the eLSD detects that one wheel is spinning too much, it applies the brakes to that wheel in attempt to help gain traction. The mechanical LSD can distribute the power to the wheel that has the most grip without applying any brakes. Thus, you shouldn't experience any slow down through corners.

MmmmmM2 · 05-02-2019, 03:41 PM

Quote:

Originally Posted by dbright03

My understanding is that the eLSD on the 340i attempts to act like an LSD by using your brakes. If the eLSD detects that one wheel is spinning too much, it applies the brakes to that wheel in attempt to help gain traction. The mechanical LSD can distribute the power to the wheel that has the most grip without applying any brakes. Thus, you shouldn't experience any slow down through corners.

You have that right, but I'm not sure if it is an eLSD. The LSD on ZHP is an M-Performance LSD. Not sure if that is different from what you are saying.

_tlink · 05-02-2019, 03:57 PM

Quote:

Originally Posted by Littlebear

I think that would be a locked diff. A limited slip diff gives a percentage of power to the less connected wheel. I think percentages for road cars are ~ 10% to 40%?

Murf

Thanks for catching my slip up haha, my inner drift demon way typing that out

mwisel · 05-02-2019, 04:02 PM

My question is for F30ZHP... Mine lists ZHP on the window sticker and is the same Melbourne Red color as yours and same 19 inch rims as yours... That's why I'm curious... If your car is up in the air and you spin one wheel forward, does the other wheel spin opposite direction or same? Thanks

MacklinUSOB · 05-02-2019, 04:11 PM

I believe since the M Performance LSD (included with ZHP) is a clutch based system it won't lock until the car is under power and certain conditions are met.

mwisel · 05-02-2019, 04:13 PM

Quote:

Originally Posted by F30ZHP

I definitely have the LSD on my car as it shows on my window sticker and I notice it when driving. I also have an email from BMW stating it has the LSD. Are you sure it's not there?

My question is for F30ZHP... Mine lists ZHP on the window sticker and is the same Melbourne Red color as yours and same 19 inch rims as yours... That's why I'm curious... If your car is up in the air and you spin one wheel forward, does the other wheel spin opposite direction or same? Also mine is auto trans. Thanks

mwisel · 05-02-2019, 04:25 PM

Quote:

Originally Posted by MacklinUSOB

I believe since the M Performance LSD (included with ZHP) is a clutch based system it won't lock until the car is under power and certain conditions are met.

If the LSD is clutch based, then is it possible I do have LSD as stated on my window sticker - even if if car is raised and wheels spin in opposite directions when one is pushed forward?

MmmmmM2 · 05-02-2019, 04:31 PM

Quote:

Originally Posted by MacklinUSOB

I believe since the M Performance LSD (included with ZHP) is a clutch based system it won't lock until the car is under power and certain conditions are met.

Ahhhh I did not think of that!! Good call! If he puts the car up on a rack and the car is in neutral, then the wheels WOULD spin in opposite directions.

My car is an 8 speed auto, which most like means if I get it up on a rack, and the car is in neutral, I'm not sure what would happen.

03-31-2019, 06:51 PM	#1
MmmmmM2 Colonel 2589 Rep 2,432 Posts Drives: 2021 M2C Join Date: Mar 2019 Location: Claremont, CA iTrader: (0) Garage List 2016 Mazda CX-5 [0.00] 2021 BMW M2C [0.00]	ZHP LSD I've never had an LSD on any of my cars, but WOW what a difference it makes in cornering! You can pretty much get away with anything when throwing this car around corners! I love it!
	Appreciate 1 BeerHerder250.50 Tweet Quote

03-31-2019, 07:14 PM	#2
NYG Brigadier General 10743 Rep 3,690 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	How exactly does a posi-trac rear end on a plymouth work? IT JUST DOES
	Appreciate 0 Quote

03-31-2019, 08:12 PM	#4
NYG Brigadier General 10743 Rep 3,690 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	Are you planning on taking the car to the track?
	Appreciate 0 Quote

04-01-2019, 12:15 AM	#7
upsidedownfunnel Colonel 1996 Rep 2,499 Posts Drives: 2014 335i Join Date: Jul 2017 Location: SoCal iTrader: (4) Garage List 2014 BMW 335i [0.00]	The feeling of an open diff sucks. All the 6 cylinder cars should have had at least a simple clutch type LSD or at least bolted differential gears to make upgrading easy.
	Appreciate 1 Beek707.00 Quote

05-02-2019, 09:47 AM	#8
mwisel New Member 0 Rep 5 Posts Drives: BMW 2018 340i ZHP Join Date: May 2019 Location: NY iTrader: (0)	LSD ON ZHP 2018 340i Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks
	Appreciate 0 Quote

05-02-2019, 09:57 AM	#9
mwisel New Member 0 Rep 5 Posts Drives: BMW 2018 340i ZHP Join Date: May 2019 Location: NY iTrader: (0)	LSD ON ZHP 2018 340i Hi - I have a ZHP 2018 340i Melbourne Red (ZHP on window sticker). I was advised has LSD... but when I raised the car and turned one rear wheel forward the other wheel turned the opposite direction - not the same direction forward. According to some posts, this suggests no LSD...? I'm confused. Can anyone shed some light on this for me? Thanks
	Appreciate 0 Quote

05-02-2019, 11:24 AM	#12
MmmmmM2 Colonel 2589 Rep 2,432 Posts Drives: 2021 M2C Join Date: Mar 2019 Location: Claremont, CA iTrader: (0) Garage List 2016 Mazda CX-5 [0.00] 2021 BMW M2C [0.00]	I definitely have the LSD on my car as it shows on my window sticker and I notice it when driving. I also have an email from BMW stating it has the LSD. Are you sure it's not there?
	Appreciate 0 Quote

05-02-2019, 12:24 PM	#13
tonksie93 Private First Class 6 Rep 107 Posts Drives: BMW F30 330d M Sport Join Date: Aug 2017 Location: United Kingdom iTrader: (0)	How does this compare to the eLSD which is only activated when in DSC OFF mode?
	Appreciate 0 Quote

05-02-2019, 04:02 PM	#18
mwisel New Member 0 Rep 5 Posts Drives: BMW 2018 340i ZHP Join Date: May 2019 Location: NY iTrader: (0)	LSD ON ZHP 2018 340i My question is for F30ZHP... Mine lists ZHP on the window sticker and is the same Melbourne Red color as yours and same 19 inch rims as yours... That's why I'm curious... If your car is up in the air and you spin one wheel forward, does the other wheel spin opposite direction or same? Thanks
	Appreciate 0 Quote

05-02-2019, 04:11 PM	#19
MacklinUSOB Captain 518 Rep 891 Posts Drives: f30 328i 6MT Sport Join Date: Jan 2017 Location: Connecticut iTrader: (0)	I believe since the M Performance LSD (included with ZHP) is a clutch based system it won't lock until the car is under power and certain conditions are met. __________________ 328i RWD \| MW on CRed Slick Top \| 6MT \| BM3 \| MPE \| GPlus FMIC \| CSF Radiator \| Millway Street Camber Plates & Monoballs \| KW V2 6k/18k Swift Springs \| F80 LCA/TS \| SPL Bump Steer Kit \| APEX SM-10 \| R-S4 \| DS2500 \| RBF600 \| SS Lines \| Past: E36 328is & E38 740i
	Appreciate 0 Quote