Posted: April 30, 2017
Wet weather driving opens up a whole new world of risk for the ordinary road driver leading to lower speeds, greater stopping distances and reduced visibility. But what about if you’ve chosen this day for a trip to the track? Can you simply transfer your wet weather road driving skills or are there other things you need to consider for a wet track? Of course, it’s the latter and below we’ve listed just a few things you’ll need to think about when driving on a wet track.
The first thing to do when you visit any wet track, regardless of how familiar you are with it in the dry, is to hit the reset button on your expectations of what it will be like. Different tracks take on different personas in the wet and making assumptions on what the conditions might be, could land you in a sticky situation. Even if you have driven the same track in the wet previously, you would be wise not to expect it to be the same this time around. Visiting after a race weekend for example, might mean more rubber, oil or chemicals on the track and that can have a major effect on your grip levels. Regular track day drivers use the term ‘summer ice’ to describe what it can feel like on a highly-polished wet track surface. Be sure to pay close attention at your circuit briefing and don’t be afraid to do more sighting laps than normal to gain a better understanding of where the grip is. If you are finding your way around and learning the line, temper your speed until you are confident you know what challenge is coming next.
Of course, this is something you would be doing when driving normally anyway. But it’s worth being extra vigilant when driving on a wet track. Speed differences between more confident and less confident drivers at key parts of the track will be magnified in the wet track conditions. You’ll need to take extra precautions to protect you and your vehicle from drivers who might be a little too confident in the braking zones and end up overshooting. There’s also the risk that you could spin your car or find yourself temporarily outside of the track limits. Think carefully before re-joining the track and if you end up facing the wrong way, give extra consideration to the reactive abilities of other cars on the track before manoeuvring your car to a position where you can continue.
Depending on the circuit, if it is raining heavily you might find rivers appear across the circuit and standing water in many areas. The potential to aquaplane at speed is real and to be expected. Ensure that your tyres have enough tread on them to clear standing water. Be prepared to adjust your terminal speed to reduce the likelihood of losing control - especially if the car you are driving does not have aero. If you are using semi slicks, for example 888s or A048s, they will be hard pressed to clear standing water, especially if they are at the end of their life.
In the dry, it’s common for experienced drivers to ‘ride the kerbs’. In doing so a driver can aid the dynamic stability of the vehicle by taking the straightest line possible through a corner, which in turn can lead to a reduced lap time. Be aware though, if you hit a high kerb at speed: you can experience pad knock back and a momentary longer travel on your brake pedal than you expected. Why? As the wheel assembly and stub axle are flexed with the impact, the disc attached to the hub is also flexed, pushing back the pistons in the brake caliper. This can make the next corner more than a little testing when you end up having to pump up the brake pedal to slow down.
If it is a wet track, I would advise you to stay off the kerbs. If you’re racing you may disagree, but if you’re there for a fun day out, weigh up the risk. Kerbs can be slippery and unpredictable to drive on. Watch any wet Formula 1 race and you’ll see proof of how dangerous they can be.
It’s an interesting question and the answer is, every circuit is different. Take Silverstone for example. Silverstone's dry line is very slippery in the wet for a number of reasons. Firstly, because it gets used nearly every day of the year for something, which makes the racing line tarmac very smooth (super smooth tarmac delivers very little grip in the wet). Add a layer of emulsified tyre rubber into the mix and years of oil and other slippery chemicals that come to the surface in the wet and the traditional dry line becomes an ice-rink. Many drivers at Silverstone report using a much wider line in the wet around the corners to get more grip.
As a general rule in the wet you are searching out the parts of a circuit that have not been polished and therefore, contaminated, with rubber and chemicals that reduce the coefficient of friction between the tyre and the road so significantly. Avoiding dry line apex and clipping points is sound advice, positioning your vehicle "off line" if safe to do so, may find you more grip. I say "may" because every circuit has its nuances and you’ll need to learn these as you go.
We’ve discussed wet track lines for the corners but what about the straights? The braking zones can be just as challenging at speed as the corners. Adverse cambers, settlement and differing split grip surfaces can all affect your vehicle stability when braking. You need to know if the vehicle you are driving is set up for the conditions. Can you adjust damper or anti-roll bar settings to increase your enjoyment and safety? Your wheels need to be a little more compliant with the road when it is raining.
Know your vehicles dynamic capability before you leave home, don't leave it to chance. A wet track is not a good place to experiment unless you are a professional or have good track knowledge. Also, if you have adjustable dampers, ensure they are set correctly front to rear and side to side. We check these settings when training with clients at Millbrook Proving Ground and I have lost count of the cars we have adjusted prior to training due to imbalanced settings.
Of course, the whole point of a day on the track is enjoyment and preparation is key to that. Take some time in the days before your visit to research the track. YouTube is a great source of learning material and motoring forums are heaving with advice on what to expect at any circuit in the UK; and don’t forget to make sure your car is in good condition for the test ahead.
You might also want to check out our CAT publication 'Your Track Day Guide'. Written to help you make informed decisions, optimise spend, purchase the right equipment, ensure you keep safe and have fun, it is full of answers to questions you should ask before venturing onto track. It will help you enjoy every circuit mile you drive. Find out more
I always say that preparation for a corner takes place long before the corner begins – I’m sure there’s a similar motto waiting to come out of me for track days as well.
"Cat Driver Training - September 2021 If you want to understand and explore the dynamics of your car then this is the team to help you whatever your level of knowledge. Personally I learnt many things about the dynamics and capabilities of the Porsche 911. Things that had not been explained to me in such detail even on Porsche factory tours and track events. The level of instruction out on the handing circuits and tracks is of the highest standard and brings to life the theory discussed in the classroom. My driving skills were taken to the next level and I will continue to work with CAT to further develop them. The facilities available at Millbrook are outstanding and it is a privilege to be able to access them via CAT Driver Training."
"Do you think you know it all? Well set up, well briefed and spendidly delivered. This training covered technical aspects of driving skills and then followed (and backed) those up with practical exercises. The learning was continuous and developmental. Whether it was simply understanding what your car could do (or what you might be able to make it do) or what you could do, there was a whole range of skills, techniques and aids that would enhance anyone's understanding of motoring. Whether it was how ABS could be triggered (or not), understeer/oversteer, trial braking, dynamic forces, on-limit driving; you name it, this course covered it. Delivered by people who clearly knew what they were talking about, but in a friendly, clear and accommodating style. I learned something from every session."
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"Performance Driver Track Day Course I participated in the course arranged by Porsche Club GB and very happy to give 5 stars all round. The team has put a huge amount of thought and effort into making the facilities and training Covid-secure, which is indicative of their professionalism. I found the whole day both fascinating and a lot of fun, in briefings, on the various driving segments, and chatting with the team and other participants. I was genuinely in awe of how much Colin moved my theoretical and practical driving on, and what he got me to get the car to do in the space of one day - always building confidence, encouraging me to explore my limits, while not pushing me beyond them. Can't wait to return!"
"I have had a reasonable degree of driving training over the years as am ex police officer and advanced police driver. I took the performance driver driver training to learn about track driving, and found it excellent. My instructor was Paul who was fantastic. The training built up during the day and I learnt so much about the capabilities of my own car and although I was nervous about using my own car realised afterwards it was the best thing for me to do. The instruction was extremely informative from an engineering perspective coupled with driving, friendly and tailored to your individual needs and abilities. At no time was I encouraged or pushed to do anything I wasn’t comfortable with. It was extremely professional throughout. I would thoroughly recommend this to anyone whatever your standard of driving."
"Truly exceptional In my experience, driving instruction has generally consisted of being repeatedly told that you are 'doing it wrong' accordingly to some unknown standard or principle that you had hoped to learn about by taking said instruction. Then there is Colin. It is not that common to find an individual who genuinely understands both people and engineering. It is incredibly rare to find one who can actively apply both to deliver a sustained behavioural change. Colin adapts his teaching style to the way you learn. For me, he lead with the WHY of the learning point, grounded in physics and engineering. We'd then put it in to practice, often doing several variants of an excercise to explore how the car reacts to differing inputs, providing valuable context for what good feels like and reinforcing the learning point. Each point built on the previous ones, layering up and coming together in to a whole, one far greater than the sum of it's parts. Subtle changes to huge effect. I was concerned on the day that the learnings would rapidly fade, but I have found that because Colin has taught me an understanding the lessons have persisted, even if I do still need some more practice (48 laps of the Silverstone GP circuit last Thursday definitely helped!). Add to this the fact that Colin is great company and an absolute pleasure to spend time with, and you have one of the most positive learning experiences I've ever known. Truly exceptional. I could not recommend more highly. Thank you!"
"Superb day with calm knowledgable and professional guidance from Paul. Thank you Paul. The course is so well structured consistently building ability and knowledge in complete safety. I fully recommend anyone wishing to increase their knowledge, confidence and experience to attend."
"Far better than any track day you can imagine! There is a massive difference between a typical driver experience or track day events and CAT driver training. The main difference is that you drive your own car to the full extent of it's capabilities, and your own, while being given expert one to one tuition by brilliant trainers Colin and Paul, who come from a Motorsport and auto engineering background. Their combined domain knowledge of engineering and competitive Motorsport allows them to explain the physics of why the car behaves as it does and how you can exploit the cars characteristics for maximum performance., in a safe fun environment. The frankly brilliant experience on the track is matched by the quality hospitality hosted by Jo, and classroom training, which prepares you for what you will experience on the next stage. These stages include such delights as the ring, where you will drive with no hands on the wheel at 100MPH, providing you with a clear understanding of the fact the car finds its own balance , and my personal favourite the alpine stage, with hairpins a plenty and 'character building' drops and rock faces. I have to admit to being slightly 'corner shy' before the training, however after some brilliant coaching from Collin urging me to 'stay on the gas, stay on the gas!' I am now far more confident and safe in the twisty stuff!"
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"Everything you read about these people is true and i cannot really add anything apart from clicking these five stars and to say they are truly incredibly knowledgeable, professional and nice. I did the Performance Driver Track day in my amazing six-month-old 911 GTS 4 and I now know so much more about my car and myself. I was in a group of six people all with different driving skill levels from the complete novice (me) to regular track day enthusiasts and the day was a journey of discovery for everyone. I am so pleased to have done it."
"First class performance car training day. Many thanks to Paul & your great team for a really enjoyable training day at Millbrook on Friday. I learnt a lot more about the capabilities of my F430 and found many new limits! The attention to detail in the delivery of the training was exceptional. I would recommend this to anyone with a performance car who wants to fully understand and enjoy their vehicle."
"An amazing day. If you drive you should go to CAT. If you have a performance car you MUST go to CAT. A day with CAT will transform your driving, you it be safer on the road in any situation and it will be the biggest performance upgrade your car will ever get. I learned so much in one day without any pressure, effort or stress. Colin's coaching is world class, he makes it simple / interesting to understand and easy to absorb / remember. The whole day and and everything leading up to it are well organised by the team. They REALLY care that you have a great day and TOTALLY deliver. You owe it to yourself to go."
"Absolutely Brilliant! The best advice I can give: believe every one of the glowing reviews on CAT! I approached CAT because I wanted to feel more comfortable with my newly-purchased BMW, the first rear-wheel drive car to be used for every-day driving after decades of FWD cars. I wanted to find out what the car's capabilities are, what it would feel like in extreme conditions, understand what it was telling me at the limits and, generally to get advice on my own technique. I wasn't a novice, having done plenty of track days and laps of the Nordschleife but I just knew that there's always plenty more to learn... A day's Performance Driver session met every one of my targets, and then more! Paul was a patient, logical and technical instructor who took time to explain what would happen in each manoeuvre and then fully debriefed that stage so that I not only knew what the car was doing but also understood what effect on the car my own actions were having. The proof of the pudding was in the final stage - setting consistent timed laps of the handling circuit. I'd worried a little about this all day as I'd have described my driving as enthusiastic but perhaps not consistent. The results were close to unbelievable to me! By remembering all that Paul had demonstrated and explained to me I surpassed my wildest dreams. Fantastic! As a result of this day, I now have more belief in my ability to read what my car's saying to me which brings confidence and relaxation. The car and I are now a team, rather than me just sitting there making it go down the road. I can highly recommend the whole CAT experience. Professional, friendly, patient, technical when required and not afraid to challenge when necessary. Oh, and the lunch is good too! I wish I could afford to go back every month..."
"Achieve your driving goals here! Can't ask for more than that! The entire experience was a positive and pleasant one. Everyone I met at CAT Driver Training contributed positively to the day, regardless of the role, so thank you to Jo, Lynne and of course, Colin! CAT have existing programmes for teaching anyone the fundamentals and advanced techniques of how to drive fast, but Colin can identify really quickly what you can and cannot do, and is quick to understand how to best use your time. I went in with my own unique set of requirements which slightly 'broke' the programme, but it was no problem at all and the most impressive thing was that I achieved my goals by the end of the day! I wanted to understand my car, be able to find and drive at the grip limit, and also understand how to be a faster and better driver. A lot to fit into a day, but Colin managed it in the most efficient way possible, and we achieved them all! Colin has great insights into vehicle dynamics, as well as the human machine behind the wheel. He understands why we sometimes don't function as optimally as we would like! His ability to listen to you, translate your input and isolate what is not working with your current technique helps focus the day on exactly what needs attention. This focus, along with Colin's 'feeling' of how the package of car and driver is behaving, makes him uniquely qualified to provide great direction and input to help you become the best driver possible. A lot of people talk about it, but very few can translate the inputs to a specific process for you to follow as a driver. The process is all about starting with foundations and building on them. It doesn't always seem to make sense, but trust the system - it all comes together in the end! The time is not cheap, but it will help you achieve your goals, so how do you put a price on that!? Thank you CAT Driver Training!!
"Best In Class Driver Training The training provided by Colin at CAT Driver training is superb. I am lucky enough to attended training days with Porsche, Lotus, Aston Martin and the day with a Colin at Millbrook has topped them all being informative, challenging, practical and above all delivered by a true Petrol Head. Thanks again and I will be back with the 911."
"Reminding how to drive fast A day with Colin on a 'One to One' basis is almost essential for anyone who lives on a small rock in the middle of the English Channel or lives in a city. We don't drive fast and don't get the opportunity to drive fast unless we are on a track. Colin spent the day reminding me how much fun it was to have 'fast feet' and to make the Tyres 'squeak' as they reach the sticky limit. I think I lost about 7kg in weight during the day as I was worked so hard but oh what a day. Thoroughly recommended to anyone who had a petrol head. Best bit was the 'Alpine Loop' at the end of the day. Full gas on the exit with all four squeaking. 👍😃"
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"Paul was amazing: awesome teacher with a great brain. Made me realize my Mustang has actually way more grip and better and better handling than I thought. Top notch facilities in Millbrook. Totally worth it."