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Help with offsets!!! Please

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Old Jun 2, 2017 | 11:31 AM
  #1  
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paulwall4
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Default Help with offsets!!! Please

Ill be getting some 20x9.5 and 20x11 wheels
Im trying to figure out what would be best for me
I am on swift springs and i do plan to run a 295 rear tire
i was thinking +28 front and +40 rear
(thats what another friend has on his car with same wheel specs but is on coils)

a buddy of mine was saying +32 front and +42 rear
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Old Jun 2, 2017 | 12:02 PM
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I am at +38 front and +40 rears with 295s. No rubbing at all. I am running 20 x 9s in front though and 20 x 11 rears.
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Old Jun 2, 2017 | 01:32 PM
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Stock is 50 front 42 rear.
all I have read recommends less than 15mm from stock to minimize the suspension geometry changes.
scrub radius being the most affected.
so by this you should be in the mid to high 30s up front and high 20 low 30s rear.
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Old Jun 2, 2017 | 02:47 PM
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It depends on the look you are trying to get, and if you are going to be OK with occasional rubbing. Fronts, 35 offset on a 9.5 will be more aggressive than my 48 offset on a 10. Mine was rubbing on the fender liner during dips when I had swift springs. Not now, that I raised it a little with the coilovers.
Rears, I'm on 35 offset on 11" wide and with 305 tires. No rubbing. 42 offset won't have any issues either, especially on 295s, although you can get a little aggressive than that. I know mine are 19s and you'll be getting 20s, but you are still keeping overall diameter with the right ratio tires. HTH
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Old Jun 2, 2017 | 03:27 PM
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First what is the car going to be used for: Track, Autocross, DD, Weekend Only, Etc...

Type of Stance your going for?

Brand of Wheels/Tire:

But given the example you have provided:

Safe but aggressive: ADVANS (I know this is Apples to Oranges but you get the idea)
20x9.5+28
20x11+39



Really Aggressive: But you get Killer Concave Faces from VOLKS
20x10+30
20x12+48

20x10+30
20x11+30

20x10+30
20x11+15


Originally Posted by paulwall4
Ill be getting some 20x9.5 and 20x11 wheels
Im trying to figure out what would be best for me
I am on swift springs and i do plan to run a 295 rear tire
i was thinking +28 front and +40 rear
(thats what another friend has on his car with same wheel specs but is on coils)

a buddy of mine was saying +32 front and +42 rear
Reply
Old Jun 3, 2017 | 09:09 AM
  #6  
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From: San Fernando Valley, California
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Thank you everyone!!! I appreciate the help!!!
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