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GITGUD ACADEMY
The GITGUD Sim Racing Book Series

The Science of Sim Racing

Understand the car. Master your technique. Find more speed.

Three practical sim racing books covering essential driving techniques, GT3 racing, and Formula racing. Learn why techniques work, how to apply them, and how to turn that knowledge into faster, more consistent laps through practical drills.

Explore the Books Where to start →
1,500+

Sim racers coached

5,000+

Course students

Top 1%

iRacing driver

5+

Years of coaching experience

The books

Choose your book

Each volume stands on its own. Read them in order and every book builds on the one before it.

The Science of Sim Racing, cover
Volume 1 · Start here

The Science of Sim Racing

The Principles of Car Control, Driving Technique & Speed

The foundation for every car you will drive. How the tyres and weight transfer decide what the car can do, how to brake, turn and get back on the throttle, and how to turn one fast lap into a lap you can repeat.

  • Car control: grip, weight transfer and balance
  • Driving technique: braking, corner types and the racing line
  • Speed: turning a fast lap into a repeatable one
  • 308 pages
  • 29 chapters
  • 152 drawings
Get Volume 1 · $4.99 PDF · English only
Or get all 3 books for $9.99, save 33% →
The Science of GT3 Racing, cover
Volume 2 · GT3

The Science of GT3 Racing

Understanding GT3 Car Dynamics, Driving Techniques & Racecraft

Heavy, powerful cars with ABS and traction control. When to lean on the aids and when not to, how to brake by corner speed, how to rotate the car, and how to keep the tyres alive over a stint.

  • Part I · Understanding GT3 cars
  • Part II · Braking a GT3, by corner speed
  • Part III · Rotation and the line
  • Part IV · The limit and the tyres
  • 156 pages
  • 15 chapters
  • 83 drawings
Get Volume 2 · $4.99 PDF · English only
Or get all 3 books for $9.99, save 33% →
The Science of Formula Racing, cover
Volume 3 · Formula

The Science of Formula Racing

Understanding Open-Wheel Dynamics, Precision & Performance

Light cars, downforce and short braking zones. Braking as a triangle, zero steering at the peak, rotation with aero, and a full part on racing open-wheelers written by Adrian Kulleseid.

  • Part I · Understanding Formula cars
  • Part II · Fundamentals
  • Part III · Rotation
  • Part IV · The limit
  • Part V · Racing open-wheelers, by Adrian Kulleseid
  • 193 pages
  • 18 chapters
  • 84 drawings
Get Volume 3 · $4.99 PDF · English only
Or get all 3 books for $9.99, save 33% →
Preview

See What's Inside the Books

Driving techniques, detailed illustrations, and practical explanations. Preview a few pages before deciding which book is right for you.

  1. Damping, friction and inertia: The Science of Sim Racing, page 20

    Chapter 2 · Page 20 · Damping, friction and inertia

  2. Dead zones: The Science of Sim Racing, page 22

    Chapter 2 · Page 22 · Dead zones

  3. Under braking: the five degrees: The Science of Sim Racing, page 60

    Chapter 6 · Page 60 · Under braking: the five degrees

  4. Cause and consequence: The Science of Sim Racing, page 95

    Chapter 10 · Page 95 · Cause and consequence

  5. Spike, flat, bleed: The Science of Sim Racing, page 109

    Chapter 12 · Page 109 · Spike, flat, bleed

  6. The hairpin: The Science of Sim Racing, page 123

    Chapter 12 · Page 123 · The hairpin

  7. The crossover dance: The Science of Sim Racing, page 228

    Chapter 22 · Page 228 · The crossover dance

  8. Where the year went: The Science of Sim Racing, page 286

    Chapter 28 · Page 286 · Where the year went

The complete series

All three books, one price

The Science of Sim Racing, The Science of GT3 Racing and The Science of Formula Racing together.

657 pages · 62 chapters · 319 illustrations

  • The Science of Sim Racing$4.99
  • The Science of GT3 Racing$4.99
  • The Science of Formula Racing$4.99
Bundle $9.99
Full price $14.97 Save 33%Just $3.33 per book
Get All 3 Books for $9.99 PDF · English only
Where to start

How the three books fit together

  1. The Science of Sim Racing

    The principles that hold in every car. Start here, whatever you drive.

  2. The Science of GT3 Racing

    The same principles in a heavy car with ABS and traction control.

  3. The Science of Formula Racing

    Light cars and downforce, where precision decides the lap.

The authors

Written by the coaches

Marian Barbieru
Author · all three books

Marian Barbieru

GITGUD Racing coach. Top 1% in iRacing in formula and sports cars, with more than 1,500 drivers coached 1-on-1.

Adrian Kulleseid
Guest author · Formula, Part V

Adrian Kulleseid

8.5K iRating, top 0.03%. Writes the racecraft chapters: defending, attacking, overtaking and a full race, corner by corner.

FAQ

Frequently Asked Questions

Are these sim racing books suitable for beginners?

Yes. The Science of Sim Racing starts with the fundamentals of car control, braking, cornering, grip, and weight transfer. It's designed to help beginners build strong driving habits while giving experienced sim racers a deeper understanding of their technique.

Do these books cover iRacing, Assetto Corsa Competizione, and other simulators?

Yes. The books focus on driving principles that apply across racing simulators, including iRacing, Assetto Corsa Competizione, Le Mans Ultimate, and Automobilista 2. The GT3 and Formula books explore techniques specific to those racing disciplines.

What's the difference between the three books?

The Science of Sim Racing explains the fundamentals that apply to every car. The Science of GT3 Racing focuses on GT3 car behavior, braking, ABS, traction control, and tyre management. The Science of Formula Racing covers open-wheel dynamics, downforce, precision, and racecraft.

Do I need to read the books in order?

No. Each book stands on its own. However, we recommend starting with The Science of Sim Racing to build a strong foundation before exploring GT3 or Formula racing.

How will I receive the books?

All three books are available as digital PDF downloads in English. You can purchase each book individually for $4.99 or get the complete collection for $9.99.

Pick up the science.

Start with the foundations, or go straight to the car you race.

Sim Racing$4.99 GT3 Racing$4.99 Formula Racing$4.99 All three books$9.99