Auto Fitment Calculator - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Joeprelude · 12-29-2012, 04:38 PM

I always used http://rimsntires.com/specs.jsp but always wished they had a visual for the specific car's suspension and fender/QP.

itdansharpe · 12-29-2012, 05:21 PM

My fender gap calculation is strictly vertical gap, it doesn't account from the edge of the tire, as I can't assume what the corner radius of your specific brand of tire is.

Quote:

Originally Posted by jeebus

also, the fender gap calculation can't be right. I just picked a tire that was 9mm taller in diameter and the fender gap shows 9mm less...shouldn't it be 1/2 that?

OmarGC · 12-29-2012, 05:32 PM

Rim width was removed?

Tansey86 · 12-29-2012, 07:46 PM

Can you add camber to the mix? I feel like that would help.

jeebus · 12-30-2012, 03:32 PM

Quote:

Originally Posted by itdansharpe

My fender gap calculation is strictly vertical gap, it doesn't account from the edge of the tire, as I can't assume what the corner radius of your specific brand of tire is.

No, that's not what I mean. Compare a 215/45/17 to a 225/45/17. The diameter of the tire is 625mm vs 634mm, a 9mm difference. Your fender gap calculation shows a change from 54mm to 45mm, also a 9mm difference. But what you aren't factoring in, is that increasing tire height doesn't push it directly closer to the fender. The tire is attached to the car at the hub, and the height change occurs above AND below that. So it would be 4.5mm closer to the fender, the other 4.5mm increase at the bottom would increase ground clearance, not decrease distance to the fender.

itdansharpe · 12-30-2012, 07:05 PM

Correct. I will adjust this shortly.

jeebus · 12-31-2012, 12:17 PM

Quote:

Originally Posted by itdansharpe

Correct. I will adjust this shortly.

Yay I win at math today. :P

DarrenDriven · 01-03-2013, 11:55 PM

Dayam, this is sweet! Added as one of the first links in the Wheel Directory!
http://www.ft86club.com/forums/showthread.php?t=7535

OrbitalEllipses · 01-03-2013, 11:59 PM

Neat, but without wheel width this tool is very incomplete in showing you changes in fitment as width changes fitment the most drastically.

Bonburner · 01-04-2013, 02:54 AM

Oh wow this is pretty awesome stuff!
Thanks a ton for this!

qijian · 01-04-2013, 03:15 AM

pretty nice tool to have handy since i can't get the miata one to work properly on my firefox.

Skywgn1 · 01-05-2013, 12:01 AM

Pretty cool. Very nice job.

JDMenrique · 01-05-2013, 10:01 AM

Very nice! Thanks

Foobar · 01-05-2013, 10:34 AM

So this tool assumes that the wheel width is equal to the tire width?

Nice work, in any event, but if you can somehow include wheel width in this, that would make this the mots comprehensive tool available to us. Unfortunately, I'm not sure of the math involved with using wheel width and tire width together to come up with the exact fitments.

12-29-2012, 05:32 PM	#17
OmarGC My FR-S has 5 gears Join Date: Aug 2012 Drives: FRS/280z/Tundra Location: St. Louis Posts: 1,994 Thanks: 626 Thanked 1,065 Times in 572 Posts Mentioned: 49 Post(s) Tagged: 3 Thread(s)	Rim width was removed? __________________ Omar GC 2JZ - 6870 - stock block - 1000whp? Instagram: 2jzus

12-30-2012, 07:05 PM	#20
itdansharpe Senior Member Join Date: Aug 2012 Drives: 2013 Scion FR-S Location: Barrie, ON Posts: 284 Thanks: 93 Thanked 271 Times in 54 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Correct. I will adjust this shortly. __________________ New: 2014 6MT Asphalt Rota Titan 17x9, RS-3 V2, Skunk2 Pro-C, Eibach Sway Bars, Password:JDM Strut Tower Bar, Perrin MCB, StopTech Stainless Lines, Hawk HP+, Nameless 3" Exhaust, VG Sharkfin, FIVE:AD Spoiler, DDM Tuning HID's 5k, HID Old: 2013 6AT Boosted Firestorm..

01-05-2013, 12:01 AM	#26
Skywgn1 Senior Member Join Date: Jun 2012 Drives: 2013 Scion FR-S (manual) Location: Idaho Posts: 249 Thanks: 83 Thanked 53 Times in 41 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Pretty cool. Very nice job. __________________ Customize the piss out of it and call it yours!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
BBK Fitment Database?	F1point4	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	163	04-06-2023 12:55 AM
Auto Fitment Calculator	itdansharpe	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	1	12-28-2012 01:09 PM
FR-S Speed/RPM Calculator	FR-S #2637	Engine, Exhaust, Transmission	8	09-19-2012 11:41 AM
Spring Rate Calculator	yomny	Suspension \| Chassis \| Brakes -- Sponsored by 949 Racing	1	08-28-2012 11:31 AM
TIRE SIZE CALCULATOR	White64Goat	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	6	08-15-2012 02:31 AM

12-29-2012, 07:46 PM	#18
Tansey86 Senior Member Join Date: Sep 2012 Drives: 2003 Subaru Outback Location: Long Island, NY Posts: 1,318 Thanks: 154 Thanked 528 Times in 300 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Can you add camber to the mix? I feel like that would help.

01-03-2013, 11:59 PM	#23
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Neat, but without wheel width this tool is very incomplete in showing you changes in fitment as width changes fitment the most drastically.

01-04-2013, 03:15 AM	#25
qijian Senior Member Join Date: Dec 2012 Drives: FRS Location: Buena park Posts: 216 Thanks: 28 Thanked 30 Times in 24 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	pretty nice tool to have handy since i can't get the miata one to work properly on my firefox.

User Name		Remember Me?
Password