For this article though, we’ll focus solely on the coil spring, and ignore the damper until a later article.As we see, springs don’t control a single variable in a straightforward way. See if you feel the effect of it, and try to visualise the forces working on the car as you go through the corners.For further explanations on the matter of ARBs, please see the more advanced chapters of this guide, which we’ll publish soon.Tyre pressures influence a number of factors in the performance of the car, and both high and low tyre pressures have their drawbacks.Lower tyre pressures lower the vertical stiffness, which in turn causes a bigger contact patch (flatter tyre), and in theory sounds promising. In road racing, if you’re 3 seconds off the pace on a road track, probably only 0.3s is down to the setup. A given tyre pressure is ideal for one specific amount of load on the tyres, yet this load varies greatly because of the different amount of downforce generated through high and low speed corners.As a general rule of thumb, on tracks with lots of low speed corners such as Okayama, you’ll want to run relatively low pressures, because compared to high speed circuits like Spa, the downforce generated by the car is fairly low on Okayama, and therefore the loads on the tyres are lower. By running the TelemetryLogger, all your driving data uploads seamlessly to the cloud and is available for analysis on your PC, laptop or tablet. The ARB connects the suspension elements of two wheels on the same axle. Follow along in our oval setup tutorials to see step-by-step how our coaches make adjustments and improve their cars’ performance… ultimately making a competitive setup.Setups can be downloaded any time, and are updated weekly so you can grab the setup for the current track and start running open setup races without the hassle of tweaking a setup.Have you ever wondered how the aliens go as fast as they do? Use VRS to compare your driving to the Pros. As you can already guess, for long runs it’s a little different and this will be covered later on in a more advanced section. The FR 2.0 has more setup options available, including an important one, which will vary greatly between circuits: the selection of front and rear springs. Honestly, having VRS in real life racing would've saved me a lot of money, quite cheap compared to a racing coach for 500€+ a day
Gaining proficiency in car setup is a process that requires you to experiment and analyze a lot. No matter if you’re a rookie or veteran, or what car or track you’re racing, our goal is to provide training every step of the way.Our 20+ coaches have years of experience, thousands of laps, and the wins and championships to back it up. It only provides stiffness in heave (vertical) motion. so VRS is a massive help. For example, a bumpy slow track like Sebring could need softer springs.This single spring design at the front is called a monoshock. Matching front and rear ride heights may be all you need to convert a qualifying setup to a race setup.For cars where the gas tank is located far from the center of gravity of the car (e.g. Use VRS to compare your driving to the Pros. When the available grip of the rear tyres is exceeded first, the car goes into oversteer; when the grip of the front tyres is exceeded first, the car goes into understeer. However, the ARB is essentially a torsion spring which stores some of the energy when twisted, so not the entire movement of one tire is transferred to the other.To give an example of an ARB’s importance: When a car without an ARB installed goes through a fast right-hand corner, the inertia forces the car to lean to the left side, which is on the outside of the corner. Each VRS datapack consists of data from all relevant iRacing circuits with a setup, telemetry and a replay file from Pro drivers in the current season (Season 3, 2017). At a track with lots of high speed corners you may want to run higher pressures to increase grip in high-load situations.When playing with the pressures you should be able to notice differences in traction in slow corners between higher and lower pressures. This is because the mass of the chassis is not willing to change direction, while the tyres that grip to the surface are. Vertical load will increase on the outside tires and will decrease on the inside tires. Observe the car and check your laptimes.Then increase the pressure a bit, and check behaviour and laptimes again. Stiffer rear springs give you a more consistent handling through the corners, while softer rear springs will give less drag on the straights.Try fiddling with the spring rates, and see if you can improve your laptime with it.
If setups is all you're interested in, yeah, there are much better options, but Vrs is much more than setups. An even lower tyre pressure will cause the shoulders of the tyre to bare the grunt of the load, less than ideal (see illustration).This effect is most noticeable on the McLaren MP4-30 or Williams FW31, as they’re running on wheels with very tall sidewalls relative to their width. For the best results, we offer personal coaching sessons with our top drivers! VRS offers three different subscription plans. Let’s say the VRS driver is running in the top split of the upcoming special event. You may have to take this into consideration when determining the static ride heights with a full tank.Keep in mind that many suspension elements are connected. This simplifies the front spring rates setup. We suggest you select a track, default weather and start a test session. But still, we’d recommend that you try fixing your driving style first.If you hop in a new car, it usually takes a bit of time getting used to it first.
Spools are typically used in karts, drag racecars, some oval race cars and some road race cars. Use the baseline setup, and drive a few laps to get the heat into the tyres. See the perfect line and the optimal throttle & brake inputs in our hotlap videos! And in a later article we’ll look more closely how to approach dynamic ride heights.From the Skip Barber, we progress into a faster and more complex car: the Formula Renault 2.0. We recommend you take either of these for a spin on low tyre pressures, so you get familiar to the feeling of too-low tyre pressures.Fortunately, for the Skip Barber car and its tyres, finding the ideal pressure is fairly easy and does not depend on the track or weather conditions too much. With VRS I can immediately compare a lap with the pros and see where I'm losing that valuable time.