19” wheels
03-23-2023, 12:01 AM
#1
Rennlist Member
Thread Starter
19” wheels
Hi guys,
I have a 991.1 gt3. I have steel brakes. I go to the track a couple times a year and I’m looking to get some track wheels/tires. I leaning towards apex wheels. My car is on swift springs and lowered a little.
I have a couple questions. I searched but couldn’t find answers.
Is the big benefit to running 19” wheels just tire choices and price?
Can you run the 9.5” front without rubbing?
Will running a 19” wheel affect the speedo?
Will the 19” wheel lower the car another 1/2”?
What tires are you running for track days?
Thanks for the help.
I have a 991.1 gt3. I have steel brakes. I go to the track a couple times a year and I’m looking to get some track wheels/tires. I leaning towards apex wheels. My car is on swift springs and lowered a little.
I have a couple questions. I searched but couldn’t find answers.
Is the big benefit to running 19” wheels just tire choices and price?
Can you run the 9.5” front without rubbing?
Will running a 19” wheel affect the speedo?
Will the 19” wheel lower the car another 1/2”?
What tires are you running for track days?
Thanks for the help.
03-23-2023, 01:56 AM
#2
Rennlist Member
It’s the tire width/profile that can affect speedo and the ride height although I don’t think the latter is really a consideration if you pick the correct tire size. You can use the wheel calculator here to work out how different tires would affect the car, speedo included:
https://www.wheel-size.com/calc/
You generally run smaller rims for lower weight, more tire choice and cheaper tires. For instance, I can’t get Falken RT660s in 20’’, had to go 19’’. Not sure about the rest of the questions.
I have a 991.2 and it’s generally advisable to change a rear trailing arm hex bolt to a pan head to help 19’’ rims fit. I’m not sure whether that’s the case for 991.1.
https://www.wheel-size.com/calc/
You generally run smaller rims for lower weight, more tire choice and cheaper tires. For instance, I can’t get Falken RT660s in 20’’, had to go 19’’. Not sure about the rest of the questions.
I have a 991.2 and it’s generally advisable to change a rear trailing arm hex bolt to a pan head to help 19’’ rims fit. I’m not sure whether that’s the case for 991.1.
03-23-2023, 09:49 AM
#3
Rennlist Member
I'm running 19" Apex VS-5RS. If you go with 265/35 front tires and 325/30 rear tires, the overall tire diameter is very close to the stock setup, so height and speedo differences should be negligible. One reason I went with 19s is to have more tire sidewall.
No rubbing issues on my end, however I haven't had it out on track yet (first DE this weekend). I hope that helps!
No rubbing issues on my end, however I haven't had it out on track yet (first DE this weekend). I hope that helps!
03-23-2023, 10:47 AM
#5
Rennlist Member
03-27-2023, 08:38 AM
#6
9.5s work up front.
One thing: run your car at stock ride heigh, do not lower it. It may look cool but you will get tire rubbing. The front caster is not very adjustable stock, so dropping ride height moves the wheel forward in the wheel well. That can result in tire rubbing. Also, dropping ride height can increase the risk of blowing out a front strut mount.
Put adjustable sway bars and tie rod links in to get the preload out. Dundon now has nice stuff they’ve made.
19s are about tire choice and weight. Right now tire choice still sorta sucks. If Goodyear starts making 3Rs again in 265/35/19 fronts and 325/30/19 rears those are great tires.
One thing: run your car at stock ride heigh, do not lower it. It may look cool but you will get tire rubbing. The front caster is not very adjustable stock, so dropping ride height moves the wheel forward in the wheel well. That can result in tire rubbing. Also, dropping ride height can increase the risk of blowing out a front strut mount.
Put adjustable sway bars and tie rod links in to get the preload out. Dundon now has nice stuff they’ve made.
19s are about tire choice and weight. Right now tire choice still sorta sucks. If Goodyear starts making 3Rs again in 265/35/19 fronts and 325/30/19 rears those are great tires.
The following users liked this post:
Anu2g (03-27-2023)
03-29-2023, 11:26 PM
#7
Advanced
9.5s work up front.
One thing: run your car at stock ride heigh, do not lower it. It may look cool but you will get tire rubbing. The front caster is not very adjustable stock, so dropping ride height moves the wheel forward in the wheel well. That can result in tire rubbing. Also, dropping ride height can increase the risk of blowing out a front strut mount.
Put adjustable sway bars and tie rod links in to get the preload out. Dundon now has nice stuff they’ve made.
19s are about tire choice and weight. Right now tire choice still sorta sucks. If Goodyear starts making 3Rs again in 265/35/19 fronts and 325/30/19 rears those are great tires.
One thing: run your car at stock ride heigh, do not lower it. It may look cool but you will get tire rubbing. The front caster is not very adjustable stock, so dropping ride height moves the wheel forward in the wheel well. That can result in tire rubbing. Also, dropping ride height can increase the risk of blowing out a front strut mount.
Put adjustable sway bars and tie rod links in to get the preload out. Dundon now has nice stuff they’ve made.
19s are about tire choice and weight. Right now tire choice still sorta sucks. If Goodyear starts making 3Rs again in 265/35/19 fronts and 325/30/19 rears those are great tires.