I thought I would start a thread for street category setup as we figure out what works with these cars. More questions than answers at this point - will update over time.
Wheels/tires
========
Stock offset is +55, so we can use +48, +50, or +55. At stock wheel widths, clearance shouldn't be an issue. For diameter, 18's will be cheaper, lighter and should be available in designs that clear the calipers. Max speed in 2nd gear at stock diameter is 60mph, so there could be courses where a shorter wheel/tire would cause additional shifting.
There are options for tire brand with the Bridgestone RE71 being a standard and popular choice. If has a strong sidewall which is good for the FWD platform. The BFG Rival is another popular choice. It is said to be a little more forgiving and may be more heat tolerant (two drivers).
Another choice is to use a square or reverse stagger setup. Rotation and wear are considerations - buy two or four at a time? I ran a reverse stagger setup on my GTI, and the rear tires lasted more than twice as long as the fronts (very limited front camber and a hack driver). Another reason I like the stagger setup is temperature balance. If the fronts come up to temp too much faster than the rears, balance may suffer.
Tire width and sidewall height are other possible variables. Wider is usually better, depending on the tire, but too wide can have detrimental side effects and be difficult to mount. If I was buying tires today, I would probably go with RE71 sized either...
Front 255/35-18, Rear 225/40-18 or
Front 255/40-18, Rear 225/45-18
depending on desired max speed (about +- 2% from stock)
Tire pressures...
Bars
===
(more detail needed)
VN uses a smaller front bar than regular Vs. What rear bars are available, and how much bigger (adjustable)? Any advantage to using larger front bar? Depending on static camber and dynamic camber gain, a bigger front bar may be an option. Both tire stagger and bar choices mostly impact front/rear balance. What does the VN need?
Alignment
=======
Are camber bolts in the FSM, and what range is available? What camber delta to use front/rear? Is caster adjustable? Standard zero toe all around?
Shocks
=====
- Electronic programming legal and available?
- thoughts on different modes for different course smoothness, and weather.
Wheels/tires
========
Stock offset is +55, so we can use +48, +50, or +55. At stock wheel widths, clearance shouldn't be an issue. For diameter, 18's will be cheaper, lighter and should be available in designs that clear the calipers. Max speed in 2nd gear at stock diameter is 60mph, so there could be courses where a shorter wheel/tire would cause additional shifting.
There are options for tire brand with the Bridgestone RE71 being a standard and popular choice. If has a strong sidewall which is good for the FWD platform. The BFG Rival is another popular choice. It is said to be a little more forgiving and may be more heat tolerant (two drivers).
Another choice is to use a square or reverse stagger setup. Rotation and wear are considerations - buy two or four at a time? I ran a reverse stagger setup on my GTI, and the rear tires lasted more than twice as long as the fronts (very limited front camber and a hack driver). Another reason I like the stagger setup is temperature balance. If the fronts come up to temp too much faster than the rears, balance may suffer.
Tire width and sidewall height are other possible variables. Wider is usually better, depending on the tire, but too wide can have detrimental side effects and be difficult to mount. If I was buying tires today, I would probably go with RE71 sized either...
Front 255/35-18, Rear 225/40-18 or
Front 255/40-18, Rear 225/45-18
depending on desired max speed (about +- 2% from stock)
Tire pressures...
Bars
===
(more detail needed)
VN uses a smaller front bar than regular Vs. What rear bars are available, and how much bigger (adjustable)? Any advantage to using larger front bar? Depending on static camber and dynamic camber gain, a bigger front bar may be an option. Both tire stagger and bar choices mostly impact front/rear balance. What does the VN need?
Alignment
=======
Are camber bolts in the FSM, and what range is available? What camber delta to use front/rear? Is caster adjustable? Standard zero toe all around?
Shocks
=====
- Electronic programming legal and available?
- thoughts on different modes for different course smoothness, and weather.