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Front: 19x9 ET53 with 5mm spacer, R7 265/35/19
Thoughts?
That would be an effective offset of 48 which in this case would push out the wheel 13 mm. Add to that the 10 mm extra tire width (1/2 of 265 - 245) and you would stick way past the fender and then would risk having the fender bottom out on top of the tire under a compression scenario. In addition you would throw more track debris towards your intakes.
That would be an effective offset of 48 which in this case would push out the wheel 13 mm. Add to that the 10 mm extra tire width (1/2 of 265 - 245) and you would stick way past the fender and then would risk having the fender bottom out on top of the tire under a compression scenario. In addition you would throw more track debris towards your intakes.
I'm basing these numbers on ShakeNbake's report of 19x9 Forgeline with an ET of 48, running 265/35/19 as per this thread:
I imagine that aggressive negative camber (-3 front) might help bring the outer edge of the tire in to help keep it from rubbing on the fender which he has done.
(BTW, my air intake gets pulverized already as is!)
I will be testing my setup Feb 9 and report back. As I mentioned before, it's super aggressive (as was my 265s on the RS and it worked out), and I worry about it rubbing on the fender - but I think it will work out.
I will be testing my setup Feb 9 and report back. As I mentioned before, it's super aggressive (as was my 265s on the RS and it worked out), and I worry about it rubbing on the fender - but I think it will work out.
Just thought I would post this for information purposes. I took my Cayman R wheels and test fit them on the GT4 on Wednesday night. Both the fronts and rears bolted on with no interference and good clearance. The Spec of the Cayman R/ Spyder wheels are:
Size:
Front 8.5 x 19" - 55mm
Rear 10 x 19" - 42mm
I would think running 245/40-19 front and 285/35-19 rear would work pretty well with these wheels.
Hope this helps for guys looking to go with 19's.
I am staying with 20's. Running Dunlops on track wheels and MPSS on street wheels and will use these for cold track days and rain track days.
I would think running 245/40-19 front and 285/35-19 rear would work pretty well with these wheels.
FWIW, my winter set-up with a stock alignment is the TireRack recommended:
F: 245/40x19 on 8.5x19 ET52
R: 285/35x19 on 11x19 ET42
No clearance or fitment issues. While I obviously haven't tracked on the Pirelli Winter Sottozero, I am driving on potholed, broken city pavement resulting in a fair amount of suspension movement.
Last edited by STLPCA; 01-16-2016 at 02:59 AM.
Reason: Add photo.
FWIW, my winter set-up with a stock alignment is the TireRack recommended:
F: 245/40x19 on 8.5x19 ET52
R: 285/35x19 on 11x19 ET42
No clearance or fitment issues. While I obviously haven't tracked on the Pirelli Winter Sottozero, I am driving on potholed, broken city pavement resulting in a fair amount of suspension movement.
Do you know if outer circumference & diameter is same as the stock 20s? I too will be in the market for winter wheels and would like to run 19s without inadvertently lowering the car.
According to the tire calculators it should be about 1/10" lower, but it's actually got a bit more ground clearance than oem based on my driveway entrance experience
FWIW, my winter set-up with a stock alignment is the TireRack recommended:
F: 245/40x19 on 8.5x19 ET52
R: 285/35x19 on 11x19 ET42
No clearance or fitment issues. While I obviously haven't tracked on the Pirelli Winter Sottozero, I am driving on potholed, broken city pavement resulting in a fair amount of suspension movement.
Originally Posted by STLPCA
According to the tire calculators it should be about 1/10" lower, but it's actually got a bit more ground clearance than oem based on my driveway entrance experience
Diameter is not an issue.
Correct.
Since the rear diameter is a smidgen lower than OEM and the front virtually the same the car's F - R tilt will give a slight rise to the front bumper now thereby making it easier for entering the driveway.
Since the rear diameter is a smidgen lower than OEM and the front virtually the same the car's F - R tilt will give a slight rise to the front bumper now thereby making it easier for entering the driveway.
I would have taken actual measurements, but I misplaced my smidgen gauge.
TWS - it's pretty bumpy and has a couple areas of extreme compression.
What camber are you going to run? This weekend at TWS I got some bad cutting in the outer sides of my front tires (stock sizes) from compression against the body. I run stock sizes, but have 10mm more offset in the front than stock with -2.0 camber...
Dang, ruined a brand new set of cup 2 fronts in six hours...
What camber are you going to run? This weekend at TWS I got some bad cutting in the outer sides of my front tires (stock sizes) from compression against the body. I run stock sizes, but have 10mm more offset in the front than stock with -2.0 camber...
Dang, ruined a brand new set of cup 2 fronts in six hours...
He posted -3.0 with a 48 offset wheel as well as 5 mm suspension height change due to tire size.
I think he'll appreciate your experience even so you have a different setup.
01-15-2016, 01:15 AM
