nothix

iTrader: (27)

Currently, I'm running oem 17" wheels the specs are:
FRONT: 17x7.0 + 30
REAR: 17x7.5 + 33

I installed 20mm spacers on the front and 25mm spacers on the rear
so I'd assume the means the actual offets now are:
FRONT: 17x7.0 + 10
REAR: 17x7.5 + 8

Now, I have new rims with the following specs:
FRONT: 18x9.5 + 20
REAR: 18x9.5 + 20

I can reuse the spacers I currently have, or use some 10mm spacers I purchased.
To compare the two wheels I did a few calculations, which I'm not sure are correct. Here is what I figured:
front:
7.5" = 190.5mm
/2 = 95.25mm
-30mm= 65.25mm

9.5" = 241.3mm
/2 = 120.65
-20mm= 100.65
rear:
7.0" = 177.8mm
/2 = 88.9mm
-33mm= 55.9mm

9.5" = 241.3mm
/2 = 120.65mm
-20mm= 100.65mm

My question is, what spacers should I use to get the same offset I have now, or slightly more aggressive.

Thanks for the help.

nothix

iTrader: (27)

I'm trying to get them as flush as possible

sumfknguy

iTrader: (16)

use a few of these on each wheel stud until you get the desired look you want.



you're welcome.

Zridder19

iTrader: (14)

Id run the same spacers hand have them hella flush.

Neg offset=ftw

davidv

iTrader: (2)

Dear lord is this confusing.

k1653d

iTrader: (4)

This might help.

http://www.1010tires.com/WheelOffsetCalculator.asp

nothix

iTrader: (27)

according to that website my results will be:
Front: EXTEND an extra 22mm
Rear: EXTEND an extra 13mm

without using any spacers on the new wheels compared to using the 20mm front and 25mm rear spacers on the stockers

noodleman

iTrader: (13)

9.5+0 (if you used the 20mm spacers) is VERY aggressive. you'd definitely need to run some big camber to have it fit
9.5+10 would be quite aggressive up front, but relatively flush in the rear on oem specs.

nothix

iTrader: (27)

think I'm gonna settle for 9.5+0 up front and 9.5+10 in the back

btw do I need longer then OEM studs for 10mm spacers?

moforeynolds

iTrader: (5)

no, you will not need longer studs for 10mm.


sumfknguy, I really hope that was a joke.

nothix

iTrader: (27)

thanks
and don't worry about that guy, he drives a lexus and thinks hes funny!

cbr900son

iTrader: (4)

lol u said lexus screw him and his 4 doors and trunk!

DustinZ33

iTrader: (19)

why would you do +0 on the front and +10 on the back. It should be the other way around.

moforeynolds

iTrader: (5)

^...I didn't even catch that.

nothix

iTrader: (27)

i think thats what i meant.
10mm spacer in the back
offsets will be
+20 in the front
+10 in the rear (10mm spacers)

same size wheels all around

teamsprock

iTrader: (1)

This is not a joke, he just forgot to finish his statement.... use these to get the exact look you want, then take them off and measure the stack of washers you used. then get a spacer to match that width. It's a cheap trick to get a perfectly flush offset!!

(Warning, do not drive like this, just use it as a quick look.. to check the flushness compress the suspension with another jack, but lowering your car back down to the ground like this would put a huge strain on your studs.)

davidv

iTrader: (2)

That's much to simple. We would rather make some wild guesses.

nothix

iTrader: (27)

wild guesses ftw.
Looks like my calculations plus the help of others paid off.
I'll have pics posted soon.

The only error was mistaking my 5mm spacers for 10mm spacers.

Thanks for the help everyone

PS: wheel gap is definitely a problem now