Three Hour, One Tank Enduro

My last blog post was about a race on the simulator using iRacing which was a 3 hour team race. Funnily enough, the weekend after that race which myself and Jason finished 4th out of 37 people in the top split, I had the chance to run an endurance race at the track where I work, Harris Hill Raceway.

Harris Hill Raceway hosts a race called “Three Hour, One Tank Enduro”. This race is three hours long, and you have to finish in one tank of gas. I decided the day before to run this race. I drove my 2011 Hyundai Sonata, and had a good strategy planned out. The day of the race, I woke up early, filled my tank up with gas, and headed to the track. Once I got there, I checked in with Philip, who was running timing, and put a transponder in my car to be able to track the laps.

This race started 12 cars. There was a Porsche GT4, a couple Miata’s, and a Tesla even attempted it.

Because we run the track on both directions at Harris Hill, we started off the first hour and a half going counter clockwise, to a 5 minute break/ driver change, then the last hour and a half going clockwise.

The start of the race was a lot of fun. My strategy was to drive like I was driving in the highway, starting off a bit slow and slowly improving the lap times, not even putting the car in manual mode and shifting gears, just letting it do automatically. It was a lot of fun because the pack was all together, which made up for some good battles on track. Myself and a Miata were going back and forth overtaking each other and I had a lot of fun. I was keeping up with the timing on my phone, but unfortunately, my phone died for the second stint.

When the first hour and a half was done, I came into the pit lane, and immediately ran up the hill to go to the bathroom. I was the first person to see the checkered flag which gave me a little bit of extra time compared to everyone else to go use the bathroom, since the 5 minute break mark started as soon as the first car (me) went into the pit lane. I completed 45 laps in this first stint.

By this point, I had more than half a tank of fuel left and knew I could push for this second half. Two cars had already fallen out (one of them being the Tesla, duh) So I was just happy I wasn’t running in last place.

The beginning of the second half, I came out really strong. Know I was shifting gears and pushing my car to its limit, but I was cautions and would do a cool down lap every now and then to save fuel and to make sure I made it to the end. I always kept in mind that it’s a long race and to finish first, you first have to finish.

There was a point during the second half of the race where I didn’t see anyone in front of me, or behind me. I knew the checkered flag hadn’t been shown yet so I figured people were falling off. I got to the top of turn 4, which is up on a hill, and as I came down, I looked around the track to see where everyone else was at. I only saw 6 cars left on track and knew I had a chance to do well.

During this last stint, my worst lap was a 1:45:439 and I did the best lap I had ever done with the Sonata on the track at a 1:42.089. I saw my friend Rachel had came by to watch me race, and caught her out of the corner of my eye while I was passing by the start/finish line, which made go a bit quicker and pull off some nice overtakes for her to see.

After the race was over, I didn’t know what position I had finished in, but I was happy to have finished the race. During the awards ceremony, I was surprised to hear Courtney (the COO of the track) say that I had completed 95 laps, 4 laps behind the leader, which was the Porsche GT4 and I had finished in second place.

It was an awesome time, and I had some great racing with people I knew. After the event, Harris Hill hosted the annual downhill derby, where members build downhill racer cars, and we taken them down from the top of turn 4. Rachel and myself went on to go down on a bunch of different downhill derby cars, this was my favorite one.

 

Preparing for 3 Hours at Road America

iRacing is hosting the IMSA Endurance Series at Road America this week. This race is a three hour race multi-class race that requires at least 2 drivers per car, myself and my friend Jason will be racing in this series on Sunday morning. We will be driving in the Dallara P217 car, also known as an LMP2 car (Le Mans Prototype). This car is basically like a formula two car but with a closed cockpit. It’s very fast, and you need to be hard on the breaks for the thing to stop. This series runs the McLaren MP4 GT3, Audi R8 LMS GT3, BMW M4 GT3, Lamborghini Huracan GT3, Porsche 911 GT3, Mercedes AMG GT3, and the Dallara P217.

This will be my third endurance race, I’ve done a six hour race at Spa-Francorchamps, and a 3 hour race at Le Mans. However, this will be my first time driving the LMP2 in an endurance race. I’ve ran the LMP2 series the last couple weeks, which runs a 45 minute race, and have gotten a good feel for the handling of the car. Road America is a track that is very fun to drive and has a good combination of high speed and low speed corners, with plenty of elevation change.

Getting ready for an endurance race is tricky. Luckily, this race is ran with a fixed setup, meaning no one can make any mechanical changes to the car. Besides how much fuel you want to run. My friend Jason and I have been doing a lot of testing to determine our race pace, pit stop strategy, fuel management, and when the tires start to wear out that it ends up costing lap time. The plan is to start off with a full tank, which will last about 16 laps. Which should be about 20 minutes into the race. Since I have a little bit more pace than my friend Jason, I will be starting us off on Sunday, pushing as hard as I can until the first pit stop, and make the driver switch after the second pit stop. I should be able to get the first 45 minutes of the race rolling.

See the source image

Jason will then drive an hour and a half stint, managing the fuel more conservative than I would be on the first stint to last a bit longer on track. He should be doing 2 pit stops for refueling and new tires before I hop back on to finish off the race.

Because this is a multi-class race, the LMP2 cars are about 20 seconds quicker than the GT3 cars that are also on track. One of the hardest parts about these races is getting by lapped cars. Slower cars that are being lapped are supposed to hold their line and let the faster car go around them. However, because this is iRacing, and not everyone is too smart, after a couple of practice sessions I’ve ran into some troubles with unpredictable driving and slower cars trying to move off their line as I’m trying to go around them, which is dangerous and can cause a big crash and ruin not only mine, but their race as well. Here’s an onboard lap in the LMP2 around Road America.

iRacing has a penalty system, during this endurance race, we can’t go over 100x, if so, we’d get disqualified. Going over track limits is a 1x, a loss of control is a 2x, contact with damage is a 4x. The best way to go about this is being patient and making calculated moves.

The beginning of the race is always nerve racking and the goal is to survive the first 2-3 laps. There’s always going to be someone making a dumb mistake and going a little too hard on the first lap. Drivers always need to remember not to push too hard the first couple of laps, since the tires and breaks are not up to temperature yet, making the car more difficult to stop, and giving you less grip since the tires are still cold and slide all over the place. With sim racing, always let the people ahead of you crash into each other, and try to stay clean and out of the mess.

The goal is to simply finish the race and stay out of trouble. If we manage to not go off track, spin, or make contact. We should be looking at a top half finish. The race pace is good and we’ve put in many hours of practice for this event. The day of the race, I will wake up early, stretch, get my water ready, do a couple of practice laps before the race session registration begins and make sure my internet cable is connected so I don’t get kicked out mid-race. And of course, I will make sure to finish my homework ahead of time, so I can hopefully celebrate a good result in the afternoon.

You can check out the highlights of the real deal here.