Saturday 27 April 2013

Audi v Rebellion in Detail

Many of you who follow me on twitter may be aware of my recent interest in the LMP1 privateer situation in the World Endurance Championship.

I will attempt to analyse the data from the #12 Rebellion and pitch it against the current World Endurance champions Audi #1 E-tron Quattro.

I'm going to start by breaking down the sector times and compare them, I have selected the first 10 laps of the race to keep the varibles to a minimum and also to get the cars at ultimate pace. I will start with the obvious, Sector 1.

 photo RebellionvAudiSector1.jpg

You will notice starightaway that Audi was the faster car but we expected that, it's not that I expect the Rebellion Toyota to be faster but it's the amount of distance between the cars that we are intrested in.
Reviewing the data as you will see above my first impressions are not quite so good. I calulated the average distance between the cars to be 1.3 seconds in Sector 1 alone. Once the cars hit traffic on lap 4 for the Audi, and lap 5 for the rebellion, the splits between them flutuate somewhat.

 photo RebellionVAudiSector2.jpg

Once again the Audi was the faster of the 2 cars, until once again traffic appears on the scene. The average time distance between them in sector 2 is an eye-watering 1.4 seconds. So currently the Rebellion is 2.7s slower on average and we havent even got to sector 3 yet. An early conclusion would be that Rebellion's drivers need to push through traffic to gain any advantage possible and minmise the gap.

 photo RebellionvAudiSector3.jpg

Again first impressions prove the #1 Audi faster through the laps until lap 9 where the Audi must have caught traffic at a bad time. The average distance through sector 3 reads better than the previous sectors at 0.7s slower, however it's only a 31s sector mainly consisting of the Hanger straight, Stowe, Vale, Club and across the line. I proved a previous blog that the rebellion has near enough the same straight line speed as the Audi but it appears they have sacrificed downforce as proven by the slower times in the previous sectors.

I also checked the overall time both cars spent in the pits during the race. Both pitted 8 times, The Audi being Diesel and Hybrid is aloud only 61 litres but the Rebellion Toyota has a 75 litres allowance. On the face of it used think Rebellion could gain sometime back by pitting less than the Audi? However as I just mentioned they both pit 8 times. So looking into it further did rebellion gain anytime back by not changing the tyres as much? Well I can say the #1 Audi spent a combined time of 9 min 44 seconds in the pits and the #12 Rebellion 9 mins 48 seconds. Not much to be gained back in the pits then, with similar times spent servicing the cars.

Still struggling to find anywhere were Rebellion have had a chance to gain anything back from the Audi during the race, I have looked through plenty of data and I can find no evidence where the Rebellion is suprior or the FIA/ACO have manufactored the sporting/technical regulations to give the LMP1 privateers a chance to snatch a podium should any of the top cars suffer with problems. My calulations have shown that over a lap on average they trail by 3.4 seconds and have proven that Rebellion's pit crew are just as savvy at servicing as Joest.

I fear the evidence suggests that FIA/ACO want to put off (intentionally or not) privateer teams from enetering LMP1 unless they give them more of a break. I don't think giving them bigger fuel tanks is the answer surely it just adds weight, incresses tyre wear and possable component fatigue. Also bear in mind both cars have the same base weight of 900kg. I'm not claiming to have the answers but just pointing out something needs to be addressed.

Hopefully the the big news that is due from Bart Hayden (Team Manager of Rebellion) at Spa will be a step towards securing the privateer in the top class of sportcar racing, long term.

All comments and thoughts are welcome.

Thursday 25 April 2013

Audi v Toyota v Rebellion, Silverstone Speed Traps


I haven't blogged for quite a while as some of you may know, but I'm going to give you all a little flavour of the direction I'm hoping to turn my blog into.

My opening example is the data from Silverstone speed traps from the first round of the FIA World Endurance Championship. I have pitched the top 10 speeds recorded by the #1 Audi, #8 Toyota and #12 Rebellion.

 photo AudivToyotavRebelliontopspeeds.jpg

You'll notice straightaway that the #8 Toyota has the slowest recorded speed in all 10 laps, I was originally surprised by this too. The obvious reason for this is down to the setup route Toyota chose with their cars for Silverstone, preferring a complete high downforce setup.

Rebellion on the other hand are a lot closer to Audi in terms of top speed than I anticipated, even with the recently installed aero upgrade. This explains, to a degree why Rebellion at the start of the Silverstone race were chasing the #7 Toyota of Alex Wurz.

Audi on the other-hand were the class of the field as you would expect with their latest 2013 spec E-tron Quattro. Recording a top speed of 272Kph (169Mph).

With the recently announced debut for the Audi E-Tron Quattro Long tail that will compete at the second race of the season, joined by the latest Toyota and possably a slippery version of the Rebellion. Spa already shows signs of a classic and you can rest assured I will trawl through the data.

All your comments and feedback are welcome.

Thursday 7 February 2013

Ultimate Motor sport Resources 2013

 I have decided to create the ultimate motor sport resource page. I have covered all the essential series throughout the world. I have Included links for the homepage right down to technical regulations and 3rd party news features and extremely good bloggers.

Formula 1
Homepage
Live timings
BBC F1 News
ScarbsF1 Technical
2013 Regulations
Autosport
Calendar

World Endurance Championship
Homepage
Live Timing
Radiolemans
Dailysportscar News and Features
Calendar
ACO

World Rally Championship
Homepage
Calendar
Live Timings
WRC Radio
Regulations

American Lemans Series
Homepage
Live Timings
Calendar

European Lemans Series
Homepage
Regulations See bottom of page for full PDF files

V8 Supercars
Homepage
Calendar
Live Timings

Blancpain Endurance Series
Homepage
Calendar

British GT
Homepage
Calendar

Grand Am
Homepage
Live Timings
Calendar
Technical Regulations

IZOD IndyCar
Homepage
Live Timings/Race Control
Calendar

Other useful links
Andy Blackmore Spotters Guides
Wall planner includes nearly every date
Race Car Engineering
Ultimate Car Page (Technical Car Info)

That is it for now, I will add 2013 regulations and live video feed links as they become active throughout the season.

Also if you think I have missed anything please feel free to leave a comment and I may add it to the appropriate category.

Enjoy!

Wednesday 6 February 2013

Watch Sebring 12hr at Aston Martin Part 2

Last year Paul Dunk (@dunkie5150 ) organised a fantastic even at the Stratstone Aston Martin showroom in Derby. I'm pleased to announce that it makes a return for March 16th 2013.

You have the chance to watch the first round of the ALMS championship and also Bruno Senna's debut race for Aston Martin Racing. A 65inch flat screen TV courtesy of D&C complete with sound system. Other partners include Daily Sports Car, RadioLemans and Travel Destination (should you wish to plan a trip to Le Mans). Live timing will also be on display for the true anoraks on a slightly smaller screen, throughout the race.

Aston Martin Racing also will be supporting the event again. Last year there was also a tasty centrepiece for proceedings in the shape of the N24 Zagato... What for 2013?



Further treats on offer include, lovely hot homemade food made by Mrs Dunk, tea and coffee, private and secured parking, you may also bring alcohol if you wish. A lucky dip and guess the race laps competition with amazing prizes on other for the winners, so bring some change with you. This is a non profit event and anything left over will be donated to charity.

The main draw from everyone that attended in 2012 was the great time we all had watching a race with fellow Motorsport fans, it's great to share stories, information and maybe even explain a few things.... You won't get shot. Just make you want to come even more, did I mention you will be watch the race in an Aston Martin Dealership, so plenty of eye candy for us petrol heads (no diesels here)

Last years Daily sports car feature of the 2012 Event

For your chance to be part of this event it's £10 a ticket.... Yes thats right only £10!

Places are limited to 50 guests and are allocated on a first come, first served basis. Please email me at paul.dunk@stratstone.com, DM me on Facebook or Twitter (@Dunkie5150) with your email address and contact telephone number to reserve your place. Payment will be taken in advance so that I can allocate your entry tickets, but if you have any questions, please let me know.


Race starts at 2pm and we will see you there!

Sunday 20 January 2013

An unsung hero of modern motorsport

All motorsport fans have heard of the HANS device, well have you actually thought about how many lives the inventor has saved? Lets just say you couldn't actually count or you'd be counting for a while.

The device was invented by Dr. Robert Hubbard in the early 1980's. A discussion with a mutual racing friend after an unfortunate incident which saw Patrick Jacquemart lose his life after a testing accident involving a sudden stop. Dr Hubbard saw a weakness during a sudden stop accident, while the body would remain in place due to the seat belts the head remained un-tethered and momentum caused the head to continue moving forward, resulting in serious injury or instant death called a Basilar skull fracture.

Dr Hubbard came up with the HANS device, which stopped the head from going forward to extremes, reducing the risk of Basilar skull fracture. At first no one was interested in the device, it took nearly 10 years and some high profile deaths of Rolan Ratzenberger, Scott Brayton and Dale Earnhardt  for the device to finally set to work.

Photobucket


1. HANS device


2. Tether (one per side)


3. Helmet anchor (one per side)


4. Shoulder support

In the mid-90s, Mercedes Benz have decided to further develop the device in order to implement it in their Formula One programme. After further evaluation from the International Automobile Federation  it became a mantatory requirement in F1 2003 and since then all major series have followed suit right down to club level. Reported sales for the device are over 300,000.

In my eyes the HANS device is one of the greatest inventions to ever come from motorsport, it has saved the lives of many drivers since it's introduction, Robert Kubica, Ernesto Viso, Kenny Bernstein and Michael McDowell to name a few (a You Tube search will prove my point) and many more.

The work of Dr. Robert Hubbard deserves to go down in history and I'm sure if you asked a driver about the device he would have nothing but praise. A truly great invention.