Quote:
Originally Posted by speedtrip
Ya the sizes I mentioned are what I am looking at I like the idea of the 17x9s but like I said they are +30 offset the poke is what concerns me. The 18x8.5 are a +38 offset so I dont know how much concern I have with that.
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I've seen numerous 18x8.5 +38 setups, and all were perfectly flush on the front with a 1.5-2.0" drop.
@
DarrenDriven's
Flush Wheel Offset Chart is a great reference when selecting wheels, but only provides numbers for a 1" drop. For those 2" drop numbers, I extended the table with its current offset rate, but the wheels will suck in at a higher rate the lower you go; basic geometry of an arc. I plan on accurately measuring the offset change for a 2" drop over Christmas.
Code:
WHEEL |-- STOCK HEIGHT --| |-- LOWERED 1" --| |-- LOWERED 2" --|
WIDTH FRONT REAR FRONT REAR FRONT REAR
7.0 +25 +18 +23 +13 +21 +9
7.5 +31 +24 +29 +19 +27 +14
8.0 +38 +31 +36 +26 +34 +22
8.5 +44 +37 +42 +32 +40 +28
9.0 +50 +43 +48 +38 +46 +34
9.5 +57 +50 +55 +45 +53 +41
10.0 +56 +51 +47
WHEN LOWERED 1" YOU WILL NEED TO REDUCE THE FRONT OFFSET
BY 2MM AND THE REAR OFFSET BY 5MM FOR PERFECT FLUSHNESS
DECREASING THE OFFSET NUMBER PUSHES THE WHEELS OUT AND
INCREASING THE OFFSET SUCKS THE WHEELS IN.
8.5" wide +38 wheel flushness with 1" drop
F: +4mm (poke)
R: -6mm (tuck)
9" wide +42 wheel flushness with 1" drop
F: +6mm (poke)
R: -4mm (tuck)
8.5" wide +38 wheel flushness with 2" drop
F: +2mm (poke) Although I've seen this flush.
R: -10mm (tuck)
9" wide +42 wheel flushness with 2" drop
F: +4mm (poke) Also seen this flush.
R: +8mm (tuck)
If you're looking to go squared, I'd recommend getting your front as close to flush as possible, and then expect to run a spacer in the rear to flush it out. Otherwise you could go staggered with a larger wheel in the rear, but then you lose the ability to rotate tires, and an increase in under-steer.
Thanks to @
switchlanez for the format.