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Message: talk to me about spacers and "square" wheel/tire configurations
Changed By: grant
Change Date: August 20, 2016 11:04AM
talk to me about spacers and "square" wheel/tire configurations
Change Date: August 20, 2016 11:04AM
talk to me about spacers and "square" wheel/tire configurations
Hi Fol;ks,
I want to experiment with "square" configurations - as is run in spec Boxster.
This means running rear tires/wheels all around.
(255/40-17 tires on 17" x 8.5" x 50mmET wheels)
I am told one needs spacers (5mm) in the front to clear suspension. I just test fit rear tires to the front of my car (PSS9, GT3 c ontrol arms, modest lowering) and it fits. Admittedly it is very close to the suspension upright, maybe 3-4mm clearance. But i've driven it a bunch of miles, turned, braked, gone through dips. what DOES concern me is that i'm pretty close to the fender on the outside and fear that under track conditions (heavy lean, take air and land, etc.) it will rub. I put some blue tape on the fender so that I'll have indication of the slightest rub, so I'm trying to test.
For those who have done this and seen it many times (hey you PCA scrutes!), what can you tell me about this?
I will note that the added scrub radius and wider tires already result in significantly more tramlining and modest kickback - jut like the math would say :-)
let's hear it,
Grant
I want to experiment with "square" configurations - as is run in spec Boxster.
This means running rear tires/wheels all around.
(255/40-17 tires on 17" x 8.5" x 50mmET wheels)
I am told one needs spacers (5mm) in the front to clear suspension. I just test fit rear tires to the front of my car (PSS9, GT3 c ontrol arms, modest lowering) and it fits. Admittedly it is very close to the suspension upright, maybe 3-4mm clearance. But i've driven it a bunch of miles, turned, braked, gone through dips. what DOES concern me is that i'm pretty close to the fender on the outside and fear that under track conditions (heavy lean, take air and land, etc.) it will rub. I put some blue tape on the fender so that I'll have indication of the slightest rub, so I'm trying to test.
For those who have done this and seen it many times (hey you PCA scrutes!), what can you tell me about this?
I will note that the added scrub radius and wider tires already result in significantly more tramlining and modest kickback - jut like the math would say :-)
let's hear it,
Grant
Original Message
Author: grantDate: August 20, 2016 11:04AM
talk to me about spacers and "square" wheel/tire configurations
Hi Fol;ks,
I want to experiment with "square" configurations - as is run in spec Boxster.
This means running rear tires/wheels all around.
I am told one needs spacers (5mm) in the front to clear suspension. I just test fit rear tires to the front of my car (PSS9, GT3 c ontrol arms, modest lowering) and it fits. Admittedly it is very close to the suspension upright, maybe 3-4mm clearance. But i've driven it a bunch of miles, turned, braked, gone through dips. what DOES concern me is that i'm pretty close to the fender on the outside and fear that under track conditions (heavy lean, take air and land, etc.) it will rub. I put some blue tape on the fender so that I'll have indication of the slightest rub, so I'm trying to test.
For those who have done this and seen it many times (hey you PCA scrutes!), what can you tell me about this?
I will note that the added scrub radius and wider tires already result in significantly more tramlining and modest kickback - jut like the math would say :-)
let's hear it,
Grant
I want to experiment with "square" configurations - as is run in spec Boxster.
This means running rear tires/wheels all around.
I am told one needs spacers (5mm) in the front to clear suspension. I just test fit rear tires to the front of my car (PSS9, GT3 c ontrol arms, modest lowering) and it fits. Admittedly it is very close to the suspension upright, maybe 3-4mm clearance. But i've driven it a bunch of miles, turned, braked, gone through dips. what DOES concern me is that i'm pretty close to the fender on the outside and fear that under track conditions (heavy lean, take air and land, etc.) it will rub. I put some blue tape on the fender so that I'll have indication of the slightest rub, so I'm trying to test.
For those who have done this and seen it many times (hey you PCA scrutes!), what can you tell me about this?
I will note that the added scrub radius and wider tires already result in significantly more tramlining and modest kickback - jut like the math would say :-)
let's hear it,
Grant