| Vancouver Auto Chat 2016 VAC Community Head Moderator: Raid3n |
 | 
04-29-2012, 07:12 PM
|
#1 | | My homepage has been set to RS
Join Date: May 2009 Location: Burnaby BC
Posts: 2,246
Thanked 2,657 Times in 543 Posts
Failed 43 Times in 25 Posts
| Anyway to calculate amount of camber needed?
I'm switching a set of wheels and the specs are a bit more aggressive than my last set, so I'm wondering if anyone out there would happen to know how much extra negative camber I need to run it without rubbing?
My previous set was 18x8 +22 front and 18x8 +27 rear on 215/40/18 tires. The next set I'm looking to get might be 18x9 +25 front and rear, and according to 1010tires' offset calculator the new front will be 10mm more out and the new rears will be 15mm more out. I still plan on running 215/40 tires on it. Right now I have just enough room to clear my current set of wheels on big dips, with only 2mm or so to spare for the front and around 3mm to spare for the rear. My front camber is at -0.8 and rear is at -2.8. All camber parts are stock, and I have two sets of camber bolts for the front and may get a pair of sliders for the rear. Does anyone know how much negative camber I need in order to run it without rubbing, or is this something I have to find out myself through trial and error?
Would 205 tires be too much of a stretch and look ridiculous on 18x9 +22?
EDIT: Never mind, I found some 18x9 +35 wheels so I won't have to adjust very much 
Last edited by Limitless; 04-29-2012 at 08:24 PM.
| 
|  | |
04-29-2012, 07:13 PM
|
#2 | | Prince of the Apes
Join Date: Oct 2007 Location: Abbotsford
Posts: 2,469
Thanked 3,046 Times in 672 Posts
Failed 1,163 Times in 238 Posts
|
trial and error?  | |
| | |
04-29-2012, 07:18 PM
|
#3 | | Rs has made me the woman i am today!
Join Date: Apr 2003 Location: Vancouver
Posts: 4,032
Thanked 2,165 Times in 594 Posts
Failed 131 Times in 61 Posts
|
there's way too many variables for anyone to make an exact guess, things like tire brand certain tires run larger or smaller than true size, then offcourse your spring rates and dapmening settings depending on how soft or hard your coilovers are set too and a few other things....
just put them on, see where it rubs then take it from there, you can get stretched tires, stiffen up your suspension, or more camber, etc......
__________________
(oO:::\___/:::Oo) (DPE-wheels) // Satin Cocaine White | |
| | |
04-29-2012, 07:41 PM
|
#4 | | My homepage has been set to RS
Join Date: May 2009 Location: Burnaby BC
Posts: 2,246
Thanked 2,657 Times in 543 Posts
Failed 43 Times in 25 Posts
|
I was hoping it would be a bit simpler because the only thing that's changing (that matters) is how much further it sticks out, since my suspension won't be changing so the stiffness and dampening settings would be the same. I'm also planning to run the same tires on them if it helps?
| |
| | |
04-29-2012, 09:10 PM
|
#5 | | Rs has made me the woman i am today!
Join Date: Apr 2003 Location: Vancouver
Posts: 4,032
Thanked 2,165 Times in 594 Posts
Failed 131 Times in 61 Posts
|
yea, no, its as simple as test fitting first then see where you are with it, only way to really tell
__________________
(oO:::\___/:::Oo) (DPE-wheels) // Satin Cocaine White | |
| | |
04-29-2012, 09:44 PM
|
#6 | | what manner of phaggotry is this
Join Date: Nov 2001 Location: Kelownafornia
Posts: 18,285
Thanked 5,473 Times in 1,814 Posts
Failed 205 Times in 120 Posts
|
the possibilities are...
.. wait for it...
Limitless
__________________
STRENGTHaesthetics | |
| | |
04-29-2012, 11:36 PM
|
#7 | | Willing to sell a family member for a few minutes on RS
Join Date: Apr 2011 Location: North vancouver
Posts: 12,649
Thanked 32,404 Times in 7,546 Posts
Failed 213 Times in 161 Posts
|
A degree will probably buy you about 5mm. Going from 1 degree of camber to 3.5 made my rear wheels go from retardedly bad fitment, to near perfect fitment. Also, if you are running the same size tires, they will stretch more on a 9, so the side all curvature will match the fender shape more as well. But I'd suggest going to a 215/35 if you really want to guarantee some room, or a 205/40. You can find 215/35s for cheap as hell though.
Last edited by westopher; 04-29-2012 at 11:43 PM.
| 
| | |
04-30-2012, 12:01 AM
|
#8 | | My homepage has been set to RS
Join Date: May 2009 Location: Burnaby BC
Posts: 2,246
Thanked 2,657 Times in 543 Posts
Failed 43 Times in 25 Posts
| Quote:
Originally Posted by G-spec  yea, no, its as simple as test fitting first then see where you are with it, only way to really tell | I see.. I guess I'll just order them and see what happens. Got some good information from the last post But you're right, because I won't know for sure until I try em on myself Quote:
Originally Posted by RRxtar the possibilities are...
.. wait for it...
Limitless | Lmao Quote:
Originally Posted by westopher A degree will probably buy you about 5mm. Going from 1 degree of camber to 3.5 made my rear wheels go from retardedly bad fitment, to near perfect fitment. Also, if you are running the same size tires, they will stretch more on a 9, so the side all curvature will match the fender shape more as well. But I'd suggest going to a 215/35 if you really want to guarantee some room, or a 205/40. You can find 215/35s for cheap as hell though. | Thanks! Good to know, I'll be trying that sometime later down the road Now that I found a set of 18x9 +35 instead of 18x9.5 +25 I'm not too worried anymore lol. Never realized how much cheaper it is to find 215 35 tires compared to 215 40. I almost forgot that it would be more of a stretch on 18x9 compared to 18x8 too
| |
| | |
04-30-2012, 12:54 AM
|
#9 | | Willing to sell a family member for a few minutes on RS
Join Date: Apr 2011 Location: North vancouver
Posts: 12,649
Thanked 32,404 Times in 7,546 Posts
Failed 213 Times in 161 Posts
|
I run 215/35s on my car, and though people are scared often to downsize sidewall because of a harsher ride, when you are riding on coils spun all the way to the bottom, with camber, on stretched tires, how much worse is your ride quality really gonna get?  Personally I'd rather have my tires cause a firmer ride than have them smash my fenders constantly if thats what it comes down to. What wheels are you looking at?
| |
| | |
04-30-2012, 01:19 AM
|
#10 | | Revscene.net has a homepage?!
Join Date: Feb 2012 Location: Richmond
Posts: 1,287
Thanked 2,093 Times in 452 Posts
Failed 75 Times in 29 Posts
|
You're putting 215's on a 9.5?! thats an insane amount of stretch... I know it has no ill effect when daily driving, but your sidewalls are pushed to its limits at this point.
I'm already pushing it putting 255's on a 10.5.
| |
| | |
04-30-2012, 01:27 AM
|
#11 | | I *heart* Revscene.net very Muchie
Join Date: Feb 2003 Location: Vancouver
Posts: 3,832
Thanked 6,596 Times in 1,169 Posts
Failed 68 Times in 23 Posts
|
this is how much you need:
/___\ | |
| | |
04-30-2012, 01:38 AM
|
#12 | | Wanna have a threesome?
Join Date: Oct 2010 Location: Squamish
Posts: 4,889
Thanked 5,054 Times in 1,657 Posts
Failed 439 Times in 203 Posts
|
The closest thing I know of to what you're looking for is willtheyfit.com, but overall it's more about trial and error than anything.
| |
| | |
04-30-2012, 06:14 AM
|
#13 | | RS controls my life!
Join Date: Oct 2005 Location: Burnaby
Posts: 750
Thanked 308 Times in 88 Posts
Failed 64 Times in 21 Posts
| Quote:
Originally Posted by belaud You're putting 215's on a 9.5?! thats an insane amount of stretch... I know it has no ill effect when daily driving, but your sidewalls are pushed to its limits at this point.
I'm already pushing it putting 255's on a 10.5. | lol if you think you "pushing it" with a 255 on a 10.5 you need to stop posting like you know anything about cars.
| |
| | |
04-30-2012, 06:46 AM
|
#14 | | Wanna have a threesome?
Join Date: Oct 2010 Location: Squamish
Posts: 4,889
Thanked 5,054 Times in 1,657 Posts
Failed 439 Times in 203 Posts
| Quote:
Originally Posted by jackal lol if you think you "pushing it" with a 255 on a 10.5 you need to stop posting like you know anything about cars. | Tire stretching is subjective, if you feel you know so much about modifying cars, you'd probably realize that. Tire to rim size relations that push the boundaries of safety to Belaud (and myself) are comfortably within safety margins to some (such as yourself). The indisputable fact, a 255 is itself well below any manufacturer recommend tire size.
| |
| | |
04-30-2012, 10:36 AM
|
#15 | | VAC Head Rotang Mod
Join Date: Oct 2004 Location: Van
Posts: 10,668
Thanked 1,427 Times in 627 Posts
Failed 33 Times in 24 Posts
| Quote:
Originally Posted by belaud You're putting 215's on a 9.5?! thats an insane amount of stretch... I know it has no ill effect when daily driving, but your sidewalls are pushed to its limits at this point.
I'm already pushing it putting 255's on a 10.5. | of course it has ill effects.... there is less 'rebound' in the tire, meaning the tire is no longer absorbing some of the uneven surface changes in the road, not to mention there will be no shoulder to speak of, so lateral grip will be affected...
also, it will cause the overall shape of the tire to deform slightly, acting similar to an over inflated tire... reducing contact patch....
__________________
2020 ND2 Miata - Polymetal Grey, Red Nappa Leather
1993 Subaru WRX (2004 WRX engine, COBB access port)
2001 CBR600F4i My Feedback (10-0-0) Quote:
Originally Posted by Fei-Ji haha i can taste the cum in my mouth | | |
| | |
04-30-2012, 11:05 AM
|
#16 | | Willing to sell a family member for a few minutes on RS
Join Date: Apr 2011 Location: North vancouver
Posts: 12,649
Thanked 32,404 Times in 7,546 Posts
Failed 213 Times in 161 Posts
|
215s on a 9.5 is fairly large stretch, however he said he is now planning on running a 9 anyways. I have run 205/40/16s on 16x9 on my old car. It was never an issue, and my stretched 205 t1r had a hell of a lot better grip than my 205/50/15 michelins on a 15x6. Its all subjective to what the person wants for their car.
| |
| | |
04-30-2012, 11:52 AM
|
#17 | | Revscene.net has a homepage?!
Join Date: Feb 2012 Location: Richmond
Posts: 1,287
Thanked 2,093 Times in 452 Posts
Failed 75 Times in 29 Posts
| Quote:
Originally Posted by Raid3n of course it has ill effects.... there is less 'rebound' in the tire, meaning the tire is no longer absorbing some of the uneven surface changes in the road, not to mention there will be no shoulder to speak of, so lateral grip will be affected...
also, it will cause the overall shape of the tire to deform slightly, acting similar to an over inflated tire... reducing contact patch.... | Thus I said daily driving as it won't affect the performance of driving from A to B, but it would be "uncomfortable" so to speak. I didn't know there was less rebound though, learn new things every day, thanks for the info! Quote:
Originally Posted by jackal lol if you think you "pushing it" with a 255 on a 10.5 you need to stop posting like you know anything about cars. | I do think I'm pushing it if I'm stretching the living shit out of the tire, like MindBomber said, its all subjective, I like to have a small stretch (225/235 on a 8.5) anything further, I'm uncomfortable with it. I never even said I know a lot about cars, I'm simply stating what I understand from my knowledge & research.
| |
| | |
04-30-2012, 03:29 PM
|
#18 | | VAC Head Rotang Mod
Join Date: Oct 2004 Location: Van
Posts: 10,668
Thanked 1,427 Times in 627 Posts
Failed 33 Times in 24 Posts
|
it WILL affect day to day... if it rains, a smaller contact patch and more bouncy ride = higher probability of loss of traction, and also i would think it would increase the effects of aquaplaning ...
__________________
2020 ND2 Miata - Polymetal Grey, Red Nappa Leather
1993 Subaru WRX (2004 WRX engine, COBB access port)
2001 CBR600F4i My Feedback (10-0-0) Quote:
Originally Posted by Fei-Ji haha i can taste the cum in my mouth | | |
| | |
04-30-2012, 03:49 PM
|
#19 | | Revscene.net has a homepage?!
Join Date: Feb 2012 Location: Richmond
Posts: 1,287
Thanked 2,093 Times in 452 Posts
Failed 75 Times in 29 Posts
| Quote:
Originally Posted by Raid3n it WILL affect day to day... if it rains, a smaller contact patch and more bouncy ride = higher probability of loss of traction, and also i would think it would increase the effects of aquaplaning ... | Thats why I said it would be "uncomfortable". The difference is not that extreme as to render the vehicle unable to drive in rain properly, unless the stretch is to the far left field of the manufacturer's rating of the tire. (205's on 10.5s  )
| |
| | |
04-30-2012, 10:31 PM
|
#20 | | My homepage has been set to RS
Join Date: May 2009 Location: Burnaby BC
Posts: 2,246
Thanked 2,657 Times in 543 Posts
Failed 43 Times in 25 Posts
|
Well it's going on a hybrid so performance isn't an issue.. haha. I had 225/45 on my old 17x9 rfp1's and I felt like I wanted more of a stretch. I'm going with 215/40 on the 18x9 I'm getting, compared to my old wheels which were 18x8 so I think the extra stretch mighttt make up for the extra 5mm poke? My gf is already complaining that the ride is harsh haha so I would like to stay away from 35 tires. My coilovers aren't all the way to the bottom, still have around 2 threads left in the rear and a whole lot in the front lol. I'm looking at white Varrstoens
| |
| | |
04-30-2012, 11:03 PM
|
#21 | | 2x Variable Nockenwellen Steuerung
Join Date: Oct 2002 Location: N49.2 W122.1
Posts: 6,176
Thanked 1,174 Times in 704 Posts
Failed 67 Times in 51 Posts
|
You don't need to trial and error if you get all the measurements.. it is simple geometry.. it is just getting the measurements are rather tedious for someone without a lift... but it is still doable. Get the measurements put everything together in sketchup... you can make pretty good estimations that way.
Last edited by godwin; 05-01-2012 at 01:03 AM.
| |
| | |
04-30-2012, 11:28 PM
|
#22 | | Banned (ABWS)
Join Date: Nov 2010 Location: LM
Posts: 350
Thanked 123 Times in 53 Posts
Failed 300 Times in 63 Posts
|
NONE.
| |
| | |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
| | |
All times are GMT -8. The time now is 11:44 PM.
|
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
The banners on the left side and below do not show for registered users!
