911/996 (C4 narrow body) : Wheel & Tire
#1
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Standard size in Front 225/40-18 & Rear 285/30-18. Can I use a Front 255/45R19 & Rear 285/40R19? Can’t find pros/cons info. Especially going from 225 to 255 in front and 18” to 19”
#2
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Here's my guess - front - 225/35/19 rear 285/25/19 (you may have to go with 285/30/19)
Be careful with the wheels you choose. Make sure they're the right offset.
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Chetrey (10-30-2019)
#3
Pro
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We increased front tire size +10mm to 235/40/18 and at full lock both front tires touch middle of fender liners on the front. Size of stock wheel wells don't seem to allow larger diameter than 225/40/18.
In future will check if anything is directly against front of wheel well, and if not will try to form a depression maybe 4" square and 1/4" deep so tire will have zero contact.
In future will check if anything is directly against front of wheel well, and if not will try to form a depression maybe 4" square and 1/4" deep so tire will have zero contact.
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Chetrey (10-30-2019)
#4
Intermediate
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I'm using 235/35-19 in front and 295/30-19 rears. Offset and ride height will be key here. Even tire dimensions could be a factor. I agree that an aspect ratio of 45 would be too high of a side wall, with the right offset you could do 255 tire but you will be adding camber to avoid fender rubbing issues.
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Chetrey (10-30-2019)
#5
Pro
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I've got 19's on my new to me 2000 C4 Cab.
They're Nexen's (which is one reason I'm thinking of getting rid of them, see below). I forget what sizes they are but they don't rub (front or back). Will have to look and post later.
Also don't know if there are spacers behind the wheels; haven't looked yet but don't plan to do that any time soon unless absolutely necessary or until I get the hollow twists, whichever comes sooner.
Actually am planning to buy a set of 18" OEM hollow turbo twists and to put a set of Michelin Pilot Sport 4S on them but I'm in no rush to spend the roughly $3k that will cost.
They're Nexen's (which is one reason I'm thinking of getting rid of them, see below). I forget what sizes they are but they don't rub (front or back). Will have to look and post later.
Also don't know if there are spacers behind the wheels; haven't looked yet but don't plan to do that any time soon unless absolutely necessary or until I get the hollow twists, whichever comes sooner.
Actually am planning to buy a set of 18" OEM hollow turbo twists and to put a set of Michelin Pilot Sport 4S on them but I'm in no rush to spend the roughly $3k that will cost.
Last edited by sgt1372; 10-31-2019 at 08:21 PM.
The following users liked this post:
Chetrey (11-01-2019)