Traction prevention: LSD or new tires?

RBC · 08-01-2010, 06:50 AM

As most of us, I have been facing severe traction problems...

I know for what I read that both LSD and non RFT tyres are important mods to help this.

However, the problem with the LSD is that it is VERY expensive compared with the tires and after you install it you tires still suck if you still have Bridgestone RFT as I do...

Please share your experiences!

fastloop · 08-01-2010, 07:30 AM

Sure the RTF's suck, but non-RFTs will only give you a small amount of extra grip in the dry. However the LSD will give you huge amount and you can always delay swapping the RFTs to when they are worn down. Given your mods, nothing short of an LSD will help you get more traction so spend the extra money now and get the LSD. You won't regret it.

boom · 08-01-2010, 08:56 AM

OMG PLEASE get an LSD. Everything about driving this car is better. Literally everything. I got raped on the price for mine and still don't regret it.

GaryS · 08-01-2010, 09:15 AM

Quote:

Originally Posted by boom

OMG PLEASE get an LSD. Everything about driving this car is better. Literally everything. I got raped on the price for mine and still don't regret it.

Yep raped is right, considering the lowest price I can find is Dinan ... when did that ever happen before?

cstavaru · 08-01-2010, 09:55 AM

I got brand new tires better rated than my old runflats but still the traction suffers alot. There is no replacement for the LSD...maybe Hoosier drag radials

That said, I am beginning to save money for a LSD...

Tacn It · 08-01-2010, 12:21 PM

save money for the lsd, night and day difference!

Jeff@TopGearSolutions · 08-01-2010, 01:12 PM

Did you try running reduced power in 1st gear torque settings?

I run 60%, traction is almost all the way through the powerband.

Comparing 100% power, spinning tire, VS just hooking up and going with less power is night and day.

Power is nothing without control!

TurboFan · 08-01-2010, 09:36 PM

You can get grippy rft. I wouldn't know about traction issues, mines awd.

ridin135 · 08-02-2010, 07:30 AM

Tires first your traction will only be as good as your tires can hold. I have a set of 255 kdw2 and dont have any traction problems when its warm and I am fully modified as long as you go into the throttle linearly you will have traction.

slowSwede · 08-02-2010, 10:38 AM

I only have 235 around and I never have traction problems in a straight line with the tires I've got on. I think they are Kumhos but I'm not sure.
The tires does a lot, but with an LSD I'd be able to be more agressive in corners. Almost bought an LSD before I changed tires and rims, my rims are HEAVY 19 inch rims and they should help some in prevent acceleration since they are big and weigh a lot. Not a good choice of rims, but at least I don't have traction problems

And yes, I'll get rid of the rims next summer....

PeteW84 · 08-02-2010, 11:43 AM

I went from the OEM RFT to 275 Invo's which are non-rft and it's like a day and night difference. The traction is much better in a straight line and corners. The TC light still comes on, but not as much as it did befere. I know an LSD would make it even better, but since my car is my DD, and I don't do any track days nor autocross there's no need for an LSD for me. Hope this helps.

dlbrooks18 · 08-02-2010, 01:26 PM

just get an LSD and never look back.. don't think about dialing back your torque, imagine being able to put that power down from a dig, torque is king for our cars..

Jeff@TopGearSolutions · 08-02-2010, 01:31 PM

I just realized how as$ backwards the thread title is.... Trying to prevent traction?

DJKhan85 · 08-02-2010, 01:35 PM

I'm currently wrestling with the decision to go LSD or not. The cheapest price I can get for a stock gearing of 3.08 is 3k. Thats a lot of scratch no matter how you slice it. I already have decently sticky summer performance tires. I don't want to get a tune without an LSD since the extra power won't be put the ground as best it could. I wish we all had bolted diffs. Those 2007 guys are damn lucky.

RBC · 08-02-2010, 01:44 PM

Quote:

Originally Posted by DJKhan85

I'm currently wrestling with the decision to go LSD or not. The cheapest price I can get for a stock gearing of 3.08 is 3k. Thats a lot of scratch no matter how you slice it. I already have decently sticky summer performance tires. I don't want to get a tune without an LSD since the extra power won't be put the ground as best it could. I wish we all had bolted diffs. Those 2007 guys are damn lucky.

Not all 2007 guys are lucky... I am 05/2007 so I don't have to buy the complet set too...

3K is a LOT! I will have to wait for a while before jumping into the LSD then...

RBC · 08-02-2010, 04:06 PM

Humm...

I found a good price in the UK which is better for me because I am in Europe!!!

From Birdsauto:

Item number 33928337
Exchange QUAIFE Final Drive 3.08:1
335i Manual after production date 03/07
£1,305.44

I may not have to wait that much after all...

dlbrooks18 · 08-02-2010, 04:10 PM

Quote:

Originally Posted by RBC

Humm...

I found a good price in the UK which is better for me because I am in Europe!!!

From Birdsauto:

Item number 33928337
Exchange QUAIFE Final Drive 3.08:1
335i Manual after production date 03/07
£1,305.44

I may not have to wait that much after all...

cool, go for it!

M_M · 08-04-2010, 12:55 AM

well if your talking about traction problem off the line, sorry the LSD simply won't help much.

08-01-2010, 06:50 AM	#1
RBC Private 7 Rep 98 Posts Drives: BMW 335i E92 '07 6MT Join Date: Nov 2009 Location: PT iTrader: (1)	Traction prevention: LSD or new tires? As most of us, I have been facing severe traction problems... I know for what I read that both LSD and non RFT tyres are important mods to help this. However, the problem with the LSD is that it is VERY expensive compared with the tires and after you install it you tires still suck if you still have Bridgestone RFT as I do... Please share your experiences! __________________ E92 335i '07 6MT Procede V4 \| AMS FMIC \| AR Catless DP \| BMS DCI KW V1 \| H&R Sway Bars
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08-01-2010, 07:30 AM	#2
fastloop Lieutenant 40 Rep 522 Posts Drives: E92 335i M Sport Join Date: Sep 2008 Location: UK iTrader: (0)	Sure the RTF's suck, but non-RFTs will only give you a small amount of extra grip in the dry. However the LSD will give you huge amount and you can always delay swapping the RFTs to when they are worn down. Given your mods, nothing short of an LSD will help you get more traction so spend the extra money now and get the LSD. You won't regret it.
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08-01-2010, 08:56 AM	#3
boom My X5d tows my spec miata to the track. 77 Rep 1,254 Posts Drives: 2010 X5 35d Join Date: Sep 2009 Location: USA iTrader: (0)	OMG PLEASE get an LSD. Everything about driving this car is better. Literally everything. I got raped on the price for mine and still don't regret it.
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08-01-2010, 09:55 AM	#5
cstavaru Brigadier General 328 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	I got brand new tires better rated than my old runflats but still the traction suffers alot. There is no replacement for the LSD...maybe Hoosier drag radials That said, I am beginning to save money for a LSD... __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
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08-01-2010, 12:21 PM	#6
Tacn It Private 5 Rep 69 Posts Drives: 08 335i E92 - 09 x5 4.8 Join Date: May 2008 Location: San Carlos , CA. iTrader: (1)	save money for the lsd, night and day difference! __________________ 335i \| ZSP \| 6MT \|bmw short shifter\| DIANAN STG.II w/JB4 \|Quaife-3.46\|AMS intercooler\|BT OCC\|AR Oil cooler\|Forge dv's\| Injen Intake \|AR catless DP'S\| AE dual catless exhaust\|Bilstein PSS10's \| M3 suspension bits \| 19" Volk TE37 Toyko Time Attacks\|
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08-01-2010, 01:12 PM	#7
Jeff@TopGearSolutions 3474 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Did you try running reduced power in 1st gear torque settings? I run 60%, traction is almost all the way through the powerband. Comparing 100% power, spinning tire, VS just hooking up and going with less power is night and day. Power is nothing without control!
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08-01-2010, 09:36 PM	#8
TurboFan Ski bum 327 Rep 6,198 Posts Drives: sideways Join Date: Aug 2007 Location: Knee deep in the pow iTrader: (8)	You can get grippy rft. I wouldn't know about traction issues, mines awd. __________________ 1999 e46 328i Ti Silver / Black[retired] 2007 e90 335xi Jet Black / Black[retired] 2011 e70 X5 35d Vermillion Red / Cinnamon 2011 e92 M3 LeMans / Fox Red extended
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08-02-2010, 07:30 AM	#9
ridin135 Colonel 134 Rep 2,407 Posts Drives: Depends on the day Join Date: Dec 2008 Location: Greenville iTrader: (7)	Tires first your traction will only be as good as your tires can hold. I have a set of 255 kdw2 and dont have any traction problems when its warm and I am fully modified as long as you go into the throttle linearly you will have traction.
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08-02-2010, 10:38 AM	#10
slowSwede Lieutenant 22 Rep 549 Posts Drives: 335 coupe Join Date: Jan 2010 Location: Skåne iTrader: (0)	I only have 235 around and I never have traction problems in a straight line with the tires I've got on. I think they are Kumhos but I'm not sure. The tires does a lot, but with an LSD I'd be able to be more agressive in corners. Almost bought an LSD before I changed tires and rims, my rims are HEAVY 19 inch rims and they should help some in prevent acceleration since they are big and weigh a lot. Not a good choice of rims, but at least I don't have traction problems And yes, I'll get rid of the rims next summer....
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08-02-2010, 11:43 AM	#11
PeteW84 COBB'ed 65 Rep 2,228 Posts Drives: 13 Mini Cooper S Join Date: Apr 2008 Location: Tinley Park, IL iTrader: (1) Garage List 2008 335i [7.56]	I went from the OEM RFT to 275 Invo's which are non-rft and it's like a day and night difference. The traction is much better in a straight line and corners. The TC light still comes on, but not as much as it did befere. I know an LSD would make it even better, but since my car is my DD, and I don't do any track days nor autocross there's no need for an LSD for me. Hope this helps. __________________ 13 Mini Cooper S 08 E92 335i (SOLD)
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08-02-2010, 01:26 PM	#12
dlbrooks18 Brigadier General 164 Rep 3,735 Posts Drives: e90 335i Join Date: Nov 2008 Location: Los Angeles iTrader: (2)	just get an LSD and never look back.. don't think about dialing back your torque, imagine being able to put that power down from a dig, torque is king for our cars.. __________________ 2008 E90 335
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08-02-2010, 01:31 PM	#13
Jeff@TopGearSolutions 3474 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	I just realized how as$ backwards the thread title is.... Trying to prevent traction?
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08-02-2010, 01:35 PM	#14
DJKhan85 Major 24 Rep 1,190 Posts Drives: 2011 4dr 6mt Golf GTI Join Date: Jun 2009 Location: Boston Massachusetts iTrader: (1)	I'm currently wrestling with the decision to go LSD or not. The cheapest price I can get for a stock gearing of 3.08 is 3k. Thats a lot of scratch no matter how you slice it. I already have decently sticky summer performance tires. I don't want to get a tune without an LSD since the extra power won't be put the ground as best it could. I wish we all had bolted diffs. Those 2007 guys are damn lucky. __________________ 2011 VW GTI 4dr-6mt-Sunroof-Nav-Xenons OLD: 08 335i AW/CR/Poplar 6mt-ZSP-ZPP-ZCW-iPod-iDrive-PDC-Style 230s w/FK 452-Dinan LSD
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08-02-2010, 04:06 PM	#16
RBC Private 7 Rep 98 Posts Drives: BMW 335i E92 '07 6MT Join Date: Nov 2009 Location: PT iTrader: (1)	Humm... I found a good price in the UK which is better for me because I am in Europe!!! From Birdsauto: Item number 33928337 Exchange QUAIFE Final Drive 3.08:1 335i Manual after production date 03/07 £1,305.44 I may not have to wait that much after all... __________________ E92 335i '07 6MT Procede V4 \| AMS FMIC \| AR Catless DP \| BMS DCI KW V1 \| H&R Sway Bars
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08-04-2010, 12:55 AM	#18
M_M Second Lieutenant 9 Rep 224 Posts Drives: 335i Join Date: Oct 2008 Location: Earth iTrader: (0)	well if your talking about traction problem off the line, sorry the LSD simply won't help much.
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