A useful trick to gain lap time

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Once you are in the groove, it can be very difficult to work out where you can gain time around a track. You feel you have more or less optimised your braking points and you are hitting your apexes, but you can’t help but feel there be more time to be found?

The answer could lie in how well you are using your tyres, and once you understand the principle, this fact can be easily spotted in amongst the wiggly lines of a data logging trace.

Jaguar Spa Fire

If you are braking on the limit, you will have no grip left for cornering and vice versa. The trick here is to combine the two, because then you get more out of the tyre.

How is this possible? Well, if you can recall those mechanics maths lessons at school about force vectors, the way you add up forces which act at 90 degrees to each other is to square them, add them up, then take the square root of the result, good old Pythagoras’ Theorem in action.

For example, if your tyre can generate 1G and you are braking at ½ G, you would think that you could only corner at ½ G at the same time. In fact, you would have 0.87G of cornering ability left due to the way forces are combined, so it is vital that you learn to make the most of this phenomenon.

What does this mean for racing? Well, it means that if you can cleverly combine braking and cornering you can extract more grip from the tyre than if you just brake in a straight line and then turn, and this will gain you lap time.

The trick is to study a channel named ‘ComboG’ in professional analysis packages such as Circuit Tools from RACELOGIC. The software does the maths for you by a vector combination of the two forces, and is a great indicator showing you how hard you are working your tyres. During the braking, corner entry and apex phases, this channel should give you a good idea of how much you are optimising your tyre’s potential grip.

  ComboG CT  

In reality most of us combine these two naturally whilst racing, but how sure are you that you are absolutely getting the maximum out of your tyres at all times?

As you release the brake and start turning into the corner, it is tricky to maximise the tyres during this crucial phase. Most drivers use the maximum grip during constant braking and constant cornering, but very few during the transition.

Have a look at these two traces from the tricky Brooklands corner at Silverstone, you can see the ComboG dropping off briefly during the turning in phase. This could mean that the driver was braking too early, or he wasn’t turning in sharply enough, or most likely a combination of the two. Once you learn to use this powerful channel, you will begin to quickly spot areas where you can gain lap time by working the tyres harder.

New Track Maps available

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New tracks have been added to our track database. You can download the full track library here.

Please make sure that you set up the following new tracks manually until a new version of VBOX Video HD2 setup software (higher than 1.1.121) or Video VBOX setup software (higher than 3.26 b432) has been released. Using auto-map in the scene will cause no map to be shown.

  • Argentina - Circuito de Rosario
  • Brazil - Autodromo Internacional de Cascavel
  • France - Anneau Du Rhin C, Geoparc short, Geoparc long
  • Germany - Estering
  • Russia – Smolensk, Grozny, Sochi
  • South Africa - Dezzi Raceway, Raceway East London
  • South Korea - Inje Speedium
  • Spain - Albacete
  • Sweden - Falkenberg Raceway
  • United Arab Emirates - Dubai Hill
  • United Kingdom – Ingliston, Aintree Sprint, Carver Barracks, Castle Combe Western Sprint, Nutts Corner, Rushmore Arena
  • United States of America - Thunderhill East, LVMS Exotics Racing

Full tack list

Ken Block World RX at Hockenheim

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Everyone knows about Ken Block and his amazing Gymkhana videos. What they might not know is that he is a seasoned campaigner in Rallycross, and this year is his first in the FIA World RX.

Ken, along with most of the World RX paddock, is also a VBOX Motorsport user. He and his team mates have been putting the latest VBOX Video HD2 through its paces in recent rounds, as well as using Circuit Tools with the assistance of driver coach David Mansfield.

Ken Block

This video is from the Hockenheim round, where Block came a highly creditable third place behind the very strong Audis of Mattias Ekström and Toomas Heikkinen.


Junior VBOX Training Day - 17th February

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Jack Fabby of the Clio Cup attending a VBOX Training CourseEvery month we have a training day for VBOX Motorsport customers, so that they can get the best out of their equipment. Half the time is spent on setting up a Video VBOX or VBOX HD – for graphic setup, logging strategy, audio and so on; the other half is an in-depth look at Circuit Tools, the racing analysis software.

This year we are holding an additional training day for junior drivers. If you are racing in a junior series and would like to come to a special day at Racelogic on Wednesday 17th February, sign up here. As well as the training course we’ll also give you a guided tour of the Racelogic headquarters, a presentation on race craft, and some time on our simulator.

Please note that spaces on this day are reserved for junior drivers and their parents only; there is a standard training day on Thursday 18th.

Spaces are limited for all our training courses so an early application is advisable! Sign up here >

LaFerrari v Porsche 918 v McLaren P1 at Portimao

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In late September, renowned motoring journalist Chris Harris got the opportunity to conduct a comparison test of the three ultimate hypercars currently on sale: McLaren’s P1, the Porsche 918, and Ferrari’s LaFerrari.

The chosen track was Portimao in Portugal, a stunning circuit with a mix of high and low speed corners and plenty of elevation change. In perfect conditions, Harris set about benchmarking the three cars using a VBOX HD in each before having fun with a couple of special guests.