+40 and +45 offset on E90 sedan??

blacktzak · 12-07-2007, 11:09 AM

I have an 08 335i sedan with sport package and am shopping for some cheap rims I can thrash around town and on the track. CSL's look pretty sweet in Matte black. Tirerack and a few other online sites seem to think that running a +40 front/ +45 rear offset will work well. I know the stock offsets are +34 front/ +37 rear.

My question is will this change throw off the dynamics of the car? Will it destroy DTC as my dealer claims?

Ron@Modbargains · 12-07-2007, 01:00 PM

No you will be fine with those offsets, it's just going to be really tucked in.

blacktzak · 12-08-2007, 01:10 AM

I guess it just doesn't make much sense that it would not affect handling adversely.

yamazaho · 12-08-2007, 09:21 AM

Quote:

Originally Posted by blacktzak

I guess it just doesn't make much sense that it would not affect handling adversely.

I have CSLs in et 35fr/30r setup and I have been having no problem at all.....

nagge · 12-09-2007, 05:54 AM

I'll just hijack this thread.

What ET is ideal for the front wheels without rubbing but at the same time getting them as flush as possbile with the fender?

The rim is 8x18.

blacktzak · 12-09-2007, 03:40 PM

35 front 30 rear would be pretty flush

Orb · 12-09-2007, 04:00 PM

Quote:

Originally Posted by blacktzak

I have an 08 335i sedan with sport package and am shopping for some cheap rims I can thrash around town and on the track. CSL's look pretty sweet in Matte black. Tirerack and a few other online sites seem to think that running a +40 front/ +45 rear offset will work well. I know the stock offsets are +34 front/ +37 rear.

My question is will this change throw off the dynamics of the car? Will it destroy DTC as my dealer claims?

No one can help unless you have the rim width. If you went 1/2" bigger in the front and rear rims then you are at the default nominal offset so it will stick out 1/4" and 1/4" more inwards so this would be perfect and no effects on the car dymanics as your srub raduis has not changed.

Orb

TurboFan · 12-09-2007, 06:17 PM

OK, sure, you're tucking the wheels in closer. You're dealers an idiot telling you it'll mess with DTC. It never ceases to amaze my what kind of bullshit they'll spew to get you to buy from them.

By tucking the wheels in closer, you are narowing the track which will raise the effective moment arm of the center of gravity over the wheels, making the car easier to tip. There, that's the difference.

I'm laughing because you'd need MATLAB to calculate the difference. If you don't have degree in Engineering or Applied Mechanics or something, you'll never be able to even calcualte the difference. And there's no way in hell you'll feel any difference.

Don't worry about it.

montreal_bimmer · 12-10-2007, 03:01 PM

try not to go lower than 30mm offset all around, and dont try to go over 38mm offset all around.

1clean335i · 12-10-2007, 03:52 PM

+22 rear offset on my csl's

and im thinking about putting a 5mm spacer on the front

12-07-2007, 11:09 AM	#1
blacktzak Private 5 Rep 52 Posts Drives: 2008 335i. sparkling graphite Join Date: Nov 2007 Location: BERKELEY,CA iTrader: (0)	+40 and +45 offset on E90 sedan?? I have an 08 335i sedan with sport package and am shopping for some cheap rims I can thrash around town and on the track. CSL's look pretty sweet in Matte black. Tirerack and a few other online sites seem to think that running a +40 front/ +45 rear offset will work well. I know the stock offsets are +34 front/ +37 rear. My question is will this change throw off the dynamics of the car? Will it destroy DTC as my dealer claims?
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12-07-2007, 01:00 PM	#2
Ron@Modbargains 58 Rep 2,201 Posts Drives: 996TT/ae86 Join Date: Aug 2005 Location: 1721 E. Lambert Rd #C, La Habra, CA 90631 iTrader: (3)	No you will be fine with those offsets, it's just going to be really tucked in.
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12-08-2007, 01:10 AM	#3
blacktzak Private 5 Rep 52 Posts Drives: 2008 335i. sparkling graphite Join Date: Nov 2007 Location: BERKELEY,CA iTrader: (0)	seems like it would make a difference... I guess it just doesn't make much sense that it would not affect handling adversely.
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12-09-2007, 05:54 AM	#5
nagge Swedish user 2 Rep 267 Posts Drives: 06' E90 330dA Join Date: Sep 2007 Location: Sweden iTrader: (0)	I'll just hijack this thread. What ET is ideal for the front wheels without rubbing but at the same time getting them as flush as possbile with the fender? The rim is 8x18. __________________ E90 330dA \| SG \| Remapped \| Blacklines \| Matte black kidney grill \| M3 Steering wheel \| Ümnitza Predator ICE LED Angel eyes \| 18" M5 reps \| ESS Tuning
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12-09-2007, 03:40 PM	#6
blacktzak Private 5 Rep 52 Posts Drives: 2008 335i. sparkling graphite Join Date: Nov 2007 Location: BERKELEY,CA iTrader: (0)	a 35 offset in the front would be pretty flush 35 front 30 rear would be pretty flush
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12-09-2007, 06:17 PM	#8
TurboFan Ski bum 317 Rep 6,198 Posts Drives: sideways Join Date: Aug 2007 Location: Knee deep in the pow iTrader: (8)	OK, sure, you're tucking the wheels in closer. You're dealers an idiot telling you it'll mess with DTC. It never ceases to amaze my what kind of bullshit they'll spew to get you to buy from them. By tucking the wheels in closer, you are narowing the track which will raise the effective moment arm of the center of gravity over the wheels, making the car easier to tip. There, that's the difference. I'm laughing because you'd need MATLAB to calculate the difference. If you don't have degree in Engineering or Applied Mechanics or something, you'll never be able to even calcualte the difference. And there's no way in hell you'll feel any difference. Don't worry about it. __________________ 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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12-10-2007, 03:01 PM	#9
montreal_bimmer OEMconcept 174 Rep 5,593 Posts Drives: BMW Join Date: Feb 2006 Location: Canada \| USA iTrader: (6) Garage List 2006 325i [10.00]	try not to go lower than 30mm offset all around, and dont try to go over 38mm offset all around.
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12-10-2007, 03:52 PM	#10
1clean335i Perf BMW mag issue 147, 159 414 Rep 6,803 Posts Drives: Project Estoril Join Date: Feb 2007 Location: Miami, FL iTrader: (31) Garage List 2013 335i M-sport [0.00] 2011 X5 xdrive35i M ... [0.00] 2009 335i M-sport [0.00] 07' 335i Sedan [0.00]	+22 rear offset on my csl's and im thinking about putting a 5mm spacer on the front __________________ '13 Estoril Blue 335i M-sport *Don't PM me!* Message me here- http://www.facebook.com/ProjectEstoril
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