How to Take Hairpin Corners Faster in Sim Racing

A hairpin is the easiest corner on the track to drive badly and still feel fine about it. It is slow, so nothing dramatic happens, and the mistake that costs you most of the lap time happens half a second before the part that feels difficult. That mistake is almost always the same one: turning in at the moment it feels natural, which is too early, and arriving at the apex with the car pointing at the wrong piece of track.

This guide is about the decision that actually separates a fast hairpin from a slow one — where to put the apex, and what that choice does to everything after it — taken from the hairpin lesson and the hairpin drill in our Foundations course, with the coach's own drawings. It is not a definition followed by "apex late". Apexing late is the usual answer and it is right more often than not, but it is right for a reason, and the reason tells you when to stop.

What is a hairpin corner?

A hairpin is a tight corner of roughly 180 degrees — the road doubles back on itself. In driving terms that means three things at once: heavy braking, the lowest speed you will see anywhere on the lap, and a long period of large steering angle while the car changes direction.

The reason hairpins matter out of proportion to their length is what comes after them. A hairpin almost always leads onto a long straight, because that is what the circuit designer was doing when they put a 180-degree turn there. So exit speed is the priority, and every tenth you gain or lose at the exit is multiplied by the length of the straight that follows. A tenth gained in a fast sweeper is a tenth. A tenth gained at a hairpin exit is a tenth that keeps growing until the next braking zone.

That single fact decides everything else on this page. It is why the entry is subordinate to the exit here in a way it is not in most corners, and it is why the instinctive line — the one that feels smoothest from inside the car — is usually the slow one.

Two hairpin lines: the rounded arc and the late apex

Put two drivers into the same hairpin and you will usually see two shapes.

The first is the rounded arc. Turn in when the corner starts to look like it wants you to, sweep through a single smooth curve, clip the inside somewhere around the first third, and let the car run out to the exit. It feels good. The steering is progressive, the car is never unsettled, and the minimum speed is often higher than the alternative.

The second is the late apex. Stay straight longer than feels right, brake in a straight line, turn in later and harder, touch the inside kerb around the middle of the corner rather than the first third, and straighten the car early so the exit is effectively a short drag race.

Here is the first line drawn on the corner. Watch where the car is pointing on the way out.

The coach's verdict on it is specific rather than general, and it is worth quoting because it is the whole argument: at the point marked on the exit, the car "is pointing towards the outside of the track, so you will straighten up the wheels way later and therefore be way too late on the throttle."

Now both lines on the same corner:

On the later-apex line, at the same point on the track, "the car is already pointing towards the exit." That is the entire benefit, and notice what it is not. It is not that the late apex carries more speed through the corner — it usually carries less. It is that the late apex converts the corner into a shorter turning phase followed by a longer accelerating phase, and the accelerating phase is the one connected to the straight.

The rounded arc has a higher minimum speed and a worse exit. The late apex has a lower minimum speed and a better exit. At a hairpin, where the exit leads somewhere and the entry does not, the trade is almost always worth making — which is why "apex late" became the rule of thumb. But it is a trade, not a law, and the section on when it stops paying is further down.

Setting up the entry: width, then straight-line braking

The late apex is bought before the braking zone, with position.

Use the full width of the road. Your outside tyres should be at the very edge of the track before you touch the brakes. This is not tidiness, it is geometry: the wider you start, the larger the radius available to you, and a larger radius is more speed for the same grip. Drivers lose this without noticing, by drifting a metre or two in from the edge on the approach because the corner is over there and the car is already pointing at it.

Brake in a straight line, at zero steering. The front tyres have one budget of grip, and at a hairpin you want practically all of it going into deceleration. The coach's phrasing in the drill is exact: "notice that we have zero degrees of steering wheel angle here — that's what you want to do." Because there is no steering to pay for, there is also no reason to bleed the brake pressure off gradually the way you would in a fast corner. You hold close to the peak, and the release, when it comes, is slight.

Get the downshifts done early. In the drill the instruction is to "spam the downshift as quickly as you can" and be in the lowest gear before the car starts turning, so that the gearbox is finished with before the balance becomes delicate. Downshifting while trail braking into a hairpin adds a rearward load transfer at the worst possible moment.

Then trail off as the steering goes on. The brake and the steering trade places: as lock goes in, pressure comes out, so the front tyres are never asked for more than they have. This is ordinary trail braking, and if the release itself is what you are working on, the trail braking guide is the page for it — here it is one component of a larger decision.

When does a late apex help — and when does it stop?

The late apex pays when the exit is worth more than the entry. Concretely, it pays when:

• A long straight follows. The longer the straight, the more a small exit advantage compounds, and the more entry speed you can afford to give away to buy it.
• The car is traction-limited on exit. A powerful car that struggles to put the power down gains more from being straight early than a low-power car does, because the sooner it is straight the sooner it can use what it has.
• The corner opens onto a wide exit. You need somewhere to run to. A late apex that ends at a wall or a kerb you cannot use is a late apex that gained you nothing.

And it stops paying — or reverses — when:

• Another corner arrives quickly. If the "straight" is two car lengths and then another braking zone, the exit is worth very little, and the extra distance and the lower minimum speed of a very late apex are simply losses.
• You take it too far. There is a point where turning in later stops buying you a straighter exit and starts buying you a slower, tighter middle section with the same exit. Past that point the car spends longer at its minimum speed for no return.
• The next corner is the other way round. A hairpin followed quickly by a turn in the opposite direction wants a different exit position, because where you finish is where you start.

The general version of this — that the corner before the straight is worth more than the corner after it — is the eighth of the twelve skills in the driving techniques guide. The hairpin is where it shows up most starkly.

The apex: maximum steering, then unwind fast

Most drivers under-steer a hairpin. Not the handling sense — the literal sense: they do not put enough lock on.

A hairpin is one of the few places where you can use a very large steering angle without paying for it, because the speed is low enough that the front tyres are nowhere near saturated. The lesson puts a number on it: "you can use 180 degrees of steering wheel angle without overloading the front end." In the drill it goes further — "we're crossing our arms and using even more than that."

That is the opposite of the advice you would get for a fast corner, where adding lock past the point of grip makes the car turn less. The distinction is speed: at 200 km/h the front tyres are already near their limit and extra angle only costs you; at 60 km/h they have capacity to spare and extra angle is free rotation. Where the boundary sits, and how to feel it, is the subject of sim racing steering technique.

Then the exit, which is two things happening together. The throttle goes down decisively — "make sure you're aggressive with your throttle input, but not so aggressive that you will have wheel spin" — and the steering comes off fast. Not gradually. The unwind is what lets the throttle go down, because every degree of lock you remove is grip returned to acceleration. Drivers who feed the throttle in slowly usually do it because they are still holding lock, and the two problems have one fix.

Why you run wide halfway around

The most common hairpin complaint is that the car runs out of road in the middle of the corner and you have to lift or add lock to save it. It is almost never a car problem. It is a geometry problem with an earlier cause.

If you turned in early, you were always going to arrive at the middle of the corner with the car pointing too far outwards; the road runs out because your line needed more road than there is. The correction — adding lock mid-corner — makes it worse, because now the front tyres are being asked to turn a car that is already at the limit, and past the front tyre's peak more steering turns the car less.

The fix is upstream. Turn in later, and accept that it will feel wrong for a while: a later turn-in means a longer moment of driving straight at a corner you can see, which every instinct says is a mistake. A useful test is to deliberately turn in so late that you obviously miss the apex to the inside. If the car then tracks out with road to spare, the problem was always the turn-in point, and the right answer is between your instinct and your deliberate exaggeration.

The other candidate is entry speed. If you arrive too fast for the line you chose, you will run wide whatever you do with the wheel, and the tell is that you are still braking at the apex. That is a braking-point problem, covered in braking points.

How the car and the next section change the line

Two hairpins that look identical on a map can want different lines.

A low-power momentum car — an MX-5, a GR86 — loses more from the lower minimum speed of a very late apex than it gains from being straight early, because it does not have the power to exploit a straight exit. It wants a rounder line, an earlier apex than a GT3 would use, and above all not to be slowed down more than necessary.

A high-power or downforce car is the opposite. It has power it cannot deploy until the wheel is straight, so being straight sooner is worth a lot, and the lower entry speed costs it comparatively little. The class-specific version of that reasoning is in the GT3 guide and the Formula guide.

And the section after the corner changes it again: a hairpin onto a kilometre of straight is a pure exit corner; a hairpin onto a short link into another turn is nearly a neutral corner, where the rounded line may genuinely be faster.

The hairpin drill: compare the whole section, not the apex

The drill from the course uses a GT3 car at the Hockenheim hairpin, with the sim's active-reset feature so you can repeat the corner rather than the lap. Any hairpin and any car will work — what matters is holding everything constant except the one thing you are testing.

The course version of this drill asks you to stay in one corner for at least ten minutes and beat your own best. That is the right instinct: a hairpin is a corner you can genuinely learn in a session, because the inputs are slow enough to think about while you make them. The wider method for working one corner until it is repeatable is in the cornering guide.

Common hairpin questions

Why does my car run wide halfway around a hairpin?

Almost always an early turn-in: you arrive at the middle of the corner pointing too far out, and the road runs out because the line you chose needs more road than exists. Adding lock to save it makes it worse. Turn in later, or check whether you are still braking at the apex — if you are, the entry speed is the real problem.

Can a very late turn-in make a hairpin slower?

Yes. Past a certain point, turning in later stops buying you a straighter exit and only buys you a slower, tighter middle. The car sits at its minimum speed for longer with no compensating gain. The drill above finds that point deliberately, which is why the third set exists.

When is a wider line just extra distance?

When there is nothing after the corner to spend the exit speed on. A wide, straightened exit is an investment that pays out over the following straight; if the straight is short, or if another corner arrives immediately, you have paid the entry cost and collected nothing. Short link sections are where the rounded arc genuinely wins.

Should I use all the kerb at a hairpin apex?

Use as much as the car will take without being unsettled — the drill's phrasing is to cut the inside kerb "staying very close to it". The limit is stability, not bravery: a kerb that pitches the car as you are trying to get the power down has cost you more than the metre of extra radius was worth. That varies by car and by kerb, which is why it is worth testing rather than assuming.

If you have worked through the drill and your exits are still inconsistent, the thing worth looking at is your own replay — where the wheel actually comes off, and whether the throttle is being fed or committed. That is the kind of thing a coach spots in one lap. The Foundations course covers every corner type this way, lesson and drill, and the Academy's lap reviews are where someone tells you which part of the hairpin is costing you.

Hairpin FAQ

What is the fastest line through a hairpin?

Usually a late apex: full width on the approach, braking in a straight line at zero steering, a later turn-in than feels natural, the inside touched around the middle of the corner rather than the first third, then a fast unwind onto the throttle. It carries a lower minimum speed than a rounded arc and produces a better exit, and because a hairpin almost always leads onto a long straight, the exit is worth more. The two lines compared.

Why does my car run wide halfway around a hairpin?

Almost always because you turned in early: the car arrives at the middle of the corner pointing too far outwards, and the road runs out because the line you chose needs more road than exists. Adding lock to save it makes it worse, because past the front tyre's limit more steering turns the car less. Turn in later. If you are still braking at the apex, the entry speed is the real problem instead. Why you run wide.

Can a very late turn-in make a hairpin slower?

Yes. Past a certain point, turning in later stops buying a straighter exit and only buys a slower, tighter middle section — the car sits at its minimum speed for longer with nothing in return. The way to find that point is to deliberately overshoot it in practice and work back, which is why the drill on this page includes a set of laps where you turn in far too late on purpose. When a late apex stops helping.

When is a wider line just extra distance?

When there is nothing after the corner to spend the exit speed on. A wide, straightened exit is an investment repaid over the following straight; if another corner arrives immediately, you have paid the entry cost and collected nothing. Short link sections between corners are where a rounded, momentum-preserving line genuinely wins. When the trade pays.

How much steering should you use at a hairpin apex?

A great deal — far more than in a fast corner, and more than most drivers use. At hairpin speeds the front tyres are nowhere near saturated, so a large angle produces rotation rather than scrub; the course puts it at around 180 degrees of wheel, and in the drill the instructor crosses his arms and adds more. The important part is the unwind: taking the lock off quickly is what lets the throttle go down. Maximum steering, then unwind.

Should you use all the kerb at a hairpin apex?

Use as much as the car will take without being unsettled. The limit is stability rather than bravery: a kerb that pitches the car while you are trying to get the power down has cost you more than the extra radius was worth, and how much a given car tolerates on a given kerb varies enough that it is worth testing rather than assuming. The hairpin drill.

Do low-power and high-power cars want the same hairpin line?

No. A low-power momentum car loses more from the lower minimum speed of a very late apex than it gains from being straight early, so it wants a rounder line. A powerful or downforce car has performance it cannot deploy until the wheel is straight, so being straight sooner is worth a lot and the lower entry speed costs it comparatively little. How the car changes the line.

How do you practise a hairpin properly?

Repeat the corner rather than the lap, using the sim's reset feature, and time from before the braking zone to a fixed reference well down the following straight — because a hairpin's cost is paid on the straight. Drive one set of laps on a rounded arc, one on a late apex and one deliberately too late, keeping the braking point identical so you are testing the line and not the entry speed, then compare section times rather than how each felt. The drill.