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Old 08-19-2014, 12:52 PM   #300 (permalink)
ViCiouS
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Join Date: Nov 2013
Location: Tampa
Posts: 207
Drives: '14 981 Cayman S
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Hey guys, I'm trying to figure out what size rear spacers I need and if my calculations are correct.

Stock rear 19" are 10et30 which is 97mm of poke from the hub.
Stock front 19" are 9et47 which is 67.3mm poke from the hub.

I am running:
Rear 20x10.5et27 which is 106.3mm poke from the hub.
Front 20x9et20 which is +93.3mm of poke from the hub.

So I am already poking out 9mm more in the rear and 27mm in the front.

Should I go with +15 in the rear or +20? I'm only at -2* camber in the rear and -1* in the front. Will be lowering the car another half inch after fenders are rolled though.
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