[Z-PDX]

Let me tag my questions on to this thread rather than starting a new one.

I am begining to order parts for primarily a track / weekend toy. No Auto-X, just not my thing. But lots of respect for the guys who make it happen.

Just a dizzying array of options for tires / wheels and very little concensus or hard data for what works well.

Local track is PIR. Pretty fast track.

My thoughts are to go as light as possible as the motor will remain stock. I am settled on 17" wheels, which seem to make the most sense.

I am absolutely struggling over wheel width and offsets as well as tire width.

Car is going down 20mm, which I understand will bring the wheels inboard a bit???

My inital thought is to stick with 225/45. I know a lot of guys are running 245/40, but I skeptical that this is leading to better lap times. Any input here?

Tire options in 235/40 is limited and 235 / 45 is getting a bit tall. So I am liking either 225 or 245.

Wheel options are many as well, but I have narrowed it to these. I am going to run Enkeis and have it narrowed to these.

Will some of you experts please comment on my thoughts? Especially concerns of offset.

17 x 7.5 +48 - 15.25 lbs.
-lightweight. offset may be a bit high. limited to 225 tires.

17 x 7.5 +38 - 17.15 lbs.
- this was the setup on the yokohama / enkei demo car. safe / conservative if a bit heavy. limited to 225 tires.

17 x 8.0 +35 - 16 lbs.
- can run tires from 225 to 245 no problem. concerned may stick out too far.

17 x 8.0 +45 - 16 lbs.
- can run tires from 225 to 245 no problem. Is this too much inset?

Finally, does going +35 or +45 affect scrub radius enough to make a difference on these vehicles? I would think not, but wanted to get your thoughts.

Thanks in advance and stay safe out there!