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Author Topic:  Stock 20" wheel backspacing?  (Read 755 times)

Offline Twol8uluz

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Stock 20" wheel backspacing?
« on: May 05, 2022, 10:55:40 AM »
Since i cant find anything much on the interwebs and apparently cant find it on here with the search function. Does anyone know the back spacing on stock 20" snowflakes 2013? My new wheels are 6.299" and are tucked in quite a bit. They are 8.5" wide with +40 offset so backspacing is the only thing that may be the issue.

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #1 on: May 05, 2022, 11:20:39 AM »
20x8 39mm backspace 63.4 hub bore 5-114.3 bolt pattern
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #2 on: May 05, 2022, 09:01:35 PM »
39mm is the offset, not the backspacing.  Ive already found all of that info. Thanks tho!

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #3 on: May 06, 2022, 07:17:31 AM »
Given a 8" wheel with a 39mm offset, backspacing should be 6.04". Compare that to your 8.5" wheel with a 40mm offset which should calculate out to 6.32".
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #4 on: May 06, 2022, 10:09:14 AM »
6.299" on the new wheel.

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #5 on: May 06, 2022, 01:08:21 PM »
That is literally 1/2 of a mm. I am going to guess that there was a thicker spot in paint, a spec of dust, a slightly out of calibration measuring device, poor tolerance on the measuring device, not perfectly parallel surface or any other number of slight variances.

You are also only looking at a difference of 1/4" or 7mm for backspacing difference. Being that the offset is only 1mm different, your wheel should be 1/4" wider in both directions with a 1mm bias towards the center of the vehicle. I'm going to guess that based off that, there is another reason they are "tucked in quite a bit".
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #6 on: May 06, 2022, 01:53:06 PM »

Exactly! So im not sure why theres so much difference between stock and these.Hopefully you can tell by the pic how tucked in they are
« Last Edit: May 06, 2022, 01:55:45 PM by Twol8uluz »

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #7 on: May 06, 2022, 02:41:16 PM »
What size tire are you running?
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #8 on: May 06, 2022, 08:11:48 PM »
Stock tire size, 245/45/20

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #9 on: May 09, 2022, 06:32:29 AM »
By going with a wider rim, your tire sidewalls are probably flexing out slightly and drawing the tread in towards the tire a little (\_/ vs l_l ). Combine that with the very slight change in wheel orientation and maybe that is enough for you to notice. You could step up a size or two in tires to help fill it out (and give you a bigger contact patch). Look at the tire specs for the desired tire and you can compare it to the stock application. There are lots of comparison calculators online. Most tire specs will also give you a max and min rim width and a recommended. Personally, I tend to stick towards the minimum end. This gives the tire a little bit bigger look.
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #10 on: May 12, 2022, 03:33:08 PM »
Its definitely a backspacing issue and not a tire size issue. Working with tire rack now to split the cost of spacers.

Offline Ta2dResqr

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Re: Stock 20" wheel backspacing?
« Reply #11 on: May 12, 2022, 05:55:57 PM »
Good luck. Hope it achieves the look you want.
Lucy Ford 2015 Ruby Red Tinted Clearcoat Metallic, EPP Twin Air Intake, EPP Hot Pipes, Gearhead AO Performance Tune (3 Bar MAP, SCT X4), Gearhead Intercooler, Hellcat Fuel Pump, MSD Ignition Coils, 160 degree Thermostat, NGK 6510 @ 0.028", PPE Downpipes (coated and wrapped), PowerStop Drilled and Slotted Rotors, Z37 Pursuit Pads, Drive Bright Puddle Lights, Drive Bright License Plate Lights, Osram XENARC Night Breaker Laser, Infinity Kappa Speakers, Sync 3 conversion, ForScan, CyanLabs, FMods, OBDLink MX+, OBDLink EX, 255/45ZR20 DSW06 Plus, Chrome Window Trim Delete, Ford Sunroof Visor, Ford Cargo Organizer, WeatherTech Floor Mats, Full GTR LED light conversion, Whelen FST, Whelen RST, Whelen Tracer, Whelen LINV2 x2, Whelen LINZ6 x2, Whelen HHS-4200, Whelen Howler x2, Whelen SA315 x2

Offline Twol8uluz

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Re: Stock 20" wheel backspacing?
« Reply #12 on: May 17, 2022, 07:51:08 PM »
Thanks, it definitely does. Already put test spacers on and it did exactly what i thought it would. Only need a 5/16" spacer. 😉👍

 

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