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Chapter Four: The Basics
| Understanding Physics | Level One Adjustments | Level Two Adjustments | | Level Three Adjustments | Summary and links By now, you should have a mechanically sound car, a feel for proper driving techniques, and a way of recording changes that you make to your car’s set up. Now you’re at the track, you’re ready to get your car set up, but the question is where to start? Check Out The Track There are a lot of things on your car that you can change to affect the set up but there are two things that you cannot change, the track itself and the weather (which we’ll get into in a bit). If it is a track you race at often, then maybe all you need to do is familiarize yourself with the layout if it has changed. If it is a track you have never visited before, you should take your time and look at it a little more closely. First, get a feel for the layout. Note where passes are likely to occur and get an idea of what line you want to run. Watch some of the cars on the track and see what lines they are running. If you know any of the racers at the track, find one who you know can finish near the top every time they race and see what driving line they are following. Whatever you do, don't pay attention to the guys who are crashing a lot, they're still getting used to the track! Next, note what kind of surface it is.
Weather Some drivers make a habit of finding out what the weather forecast is for the day or weekend of their races. This helps them get an idea of what they may expect. With today’s temperature-rated tires, this becomes even more important. If it is supposed to be extremely hot, you can probably leave those cold weather tires at home. If you have a temperature gauge (or you can borrow one from a Nitro driver), take a track temperature reading every couple of hours and record it in your notes. Note if it is overcast or clear skies because cloud cover will make for a cooler track even if air temperature is the same. Off-road races may be affected by rain, but even on-road tracks may habitually run in the wet. Find out before you go, and ask an official at the track. Go with what you know The set up that you have on your car for your first run should be something that you are familiar with or a “base” set up. If you have some set ups that you have used in similar conditions, go with one that worked best. If you are just starting out getting a set up on your car or the track condition and/or weather are different from anything you’ve encountered so far, start with the stock set up that is recommended by the manufacturer’s instruction manual when you built the kit. This will at least give you something that you can drive around the track without much trouble and provide a good starting point. Start slow, go fast When you first get out on the track, you’ll want to grab a bunch of throttle and show everyone just how fast you are. However, restrain yourself from doing this. Start out slow and get a feel for the car on the track. Slowly drive the line that you scouted out earlier when looking at the track. This lets the tires warm up, you get a better feel for the track, and you also find out what cars to watch out for if there are several cars on the track. As you feel more comfortable with the line, slowly begin to drive a little faster. If you start hitting things, slow down a little and begin to slowly increase your speed again. The purpose of this is to get a feel for how the car is behaving on the track as well as to find a fast line around the track. After you’ve gotten up to racing speed, check and see how your car is performing compared to the faster cars on the track. If you can, wait for a faster car and follow it. If you know other drivers at the track, ask them to wait for you so you can practice together. Practice using your peripheral vision to watch the other car as you drive around the track taking mental notes. Is there a certain section where you are gaining ground? Are there other areas where the car isn’t as fast as the others? Are they taking a different line that is giving them more speed through a section? Don’t be afraid to try different lines to see if you can catch up to the faster cars. There is no certain number of laps or length of time that you should be on the track for this. If you know the car is almost impossible to drive after a few laps, pull it off the track. Note what problems it is having and pull it off the track. If you feel the car is close, try different lines and see which one is producing the faster times. Note where you want the car to improve and what you want to improve (i.e. do you need more steering because the car is pushing into the corner or is it a little loose in that tricky chicane section?). Once you have had some time on the track, found the racing line that is quickest around the track, and taken notes on how the car is performing, it is time to start making changes. But first, you need to know what forces are acting on your car and why it is doing what it is doing. Introduction
| Basic Car Maintenance | Keys
to Finding a Good Setup | Setup Tools |
The Basics | |