I have two Martinsville Speedway 2017 Season 3 setups. For me, this setup is about a tenth slower than version 1 and doesn’t feel as comfortable. The tire wear seems to be pretty even if you are not abusive. Here is the basic process used to build this setup.
- Start with iRacing baseline for Martinsville. Adjust the shocks. Run a few laps, increase stagger. Repeat until the car feels comfortable.
- Tweak for tire wear balance on longer runs.
The goal with this version was to make a setup without changing the iRacing spring set. I made it to 2 inches of stagger. The goal for version 1 was to start with a known quantity (according to the laws of physics), that being stagger.
I spent a whole lot more time building version 1 of the setup. Here is the basic process.
- Start with iRacing baseline for Martinsville and set stagger according to the laws of physics. I ended up lowering it .125 inch before I was finished.
- Find the right gear, within a click or two. Sometimes iRacing provides a setup with a gear that is close in the Late Models. I don’t recall if that was the case with this setup. You could make this gear a click taller but you might pay for it in long runs. As the tires wear, you begin to need a shorter gear.
- Make adjustments to springs, shocks, track bars, etc. until the car feels fairly comfortable. These changes had to be made here because I moved the stagger from the ridiculous 1 inch setting in the iRacing setup to 2.625 inches. That made the car pretty loose, so I had to move in small steps, making small changes to dial the looseness out of it.
- Adjust the gear if necessary.
- Adjust cross weight and tweak springs, shocks, track bars, etc. to get tire wear balance for long runs. I also lowered the stagger .125 inch because 2.625 was just a little bit too much.