Maybe a dumb question. I did search, and didn't seen the answer. On the first gen CTS, what rim size(s) were provided on the sport version of the car? I'm asking because it seems likely that I'll be seeking out a set, since I have begun to run in autocross events.
Currently I have the regular 16" rims (225-55-16 tire size) and I want to go up to a slightly larger rim size, but I want to stick with Cadillac original rims. But I've read that the sport size rim is 17 inches, and I've read that it's 18 inches. It has to be one or the other, or maybe they were available in both sizes? That's what I need to know.
I also want to go to a wider tire size, and also maintain the factory spec tire diameter, or at least very close to it. I'm open to going to as wide a tire as won't rub when installed. I'd like to go to at least 245 width tires.
The stock 225-55-16 tires are 25.7 inches tall. 245-50-16 would be 25.6 inches tall.
In 17s, the oem size tire is 225-50-17 which is 25.9 inches tall. 245-45-17 would be 25.7 inches tall, and so would be 275-40-17.
I'd have to check to see what width is the max that will run without rubbing at a max deflection turn.
My reason for wanting to go to a larger (wider) tire is simply a matter of traction. Very important when driving an autocross course.
I want a set of autocross rims and tires, in addition to my regular daily driver OEM 16s. Not really interested in aftermarket rims, thanks but no thanks. I like to preserve the authentic Cadillac look in everything.
I've already upgraded to V sway bars, which helped stiffness in cornering a lot, and in fact I did that upgrade as soon as I got the car, two years ago. There is a strut brace that will fit under the 2004 luxury package hood, and I need to just go ahead and buy it. It's pretty cheap, but you have to get the right one. There are not less than three different strut braces for a first generation CTS and I know for a fact that two of them don't fit. Because I bought both of them based on bad information, and no, they DON'T fit. The LS9 marked brace is too low and rubs on the intake, and the other one is too high and won't let the hood close as it's meant for a bumped-out hood in a later model year.
I recently replaced the soft ride FE1 front struts with FE2s, but left the original springs in place. I'm scheduled to change out the rear struts for FE2s very soon. I may also change out the springs. I don't want to go to TOO stiff a ride as this is my daily driver and I like reasonable comfort.
Currently I have the regular 16" rims (225-55-16 tire size) and I want to go up to a slightly larger rim size, but I want to stick with Cadillac original rims. But I've read that the sport size rim is 17 inches, and I've read that it's 18 inches. It has to be one or the other, or maybe they were available in both sizes? That's what I need to know.
I also want to go to a wider tire size, and also maintain the factory spec tire diameter, or at least very close to it. I'm open to going to as wide a tire as won't rub when installed. I'd like to go to at least 245 width tires.
The stock 225-55-16 tires are 25.7 inches tall. 245-50-16 would be 25.6 inches tall.
In 17s, the oem size tire is 225-50-17 which is 25.9 inches tall. 245-45-17 would be 25.7 inches tall, and so would be 275-40-17.
I'd have to check to see what width is the max that will run without rubbing at a max deflection turn.
My reason for wanting to go to a larger (wider) tire is simply a matter of traction. Very important when driving an autocross course.
I want a set of autocross rims and tires, in addition to my regular daily driver OEM 16s. Not really interested in aftermarket rims, thanks but no thanks. I like to preserve the authentic Cadillac look in everything.
I've already upgraded to V sway bars, which helped stiffness in cornering a lot, and in fact I did that upgrade as soon as I got the car, two years ago. There is a strut brace that will fit under the 2004 luxury package hood, and I need to just go ahead and buy it. It's pretty cheap, but you have to get the right one. There are not less than three different strut braces for a first generation CTS and I know for a fact that two of them don't fit. Because I bought both of them based on bad information, and no, they DON'T fit. The LS9 marked brace is too low and rubs on the intake, and the other one is too high and won't let the hood close as it's meant for a bumped-out hood in a later model year.
I recently replaced the soft ride FE1 front struts with FE2s, but left the original springs in place. I'm scheduled to change out the rear struts for FE2s very soon. I may also change out the springs. I don't want to go to TOO stiff a ride as this is my daily driver and I like reasonable comfort.