July 23, 2008

Fuel set to decide qualifying outcome?

Will it be all down to fuel?

While most of the field are scratching their heads wondering how they can make five minutes, Mark Green continues to complete the full 5 minutes at blistering pace. The Serpent/Mega driver switched engines to save what he believed was a very good engine for qualifying but found the second engine was just as good and also gave better run time. Green’s car looks really good with the Englishman running the soon to be released Italian foam Xceed tyre on also soon to be released lightweight OS2 rims.

2006 European Champion Fabio Domanin is another quick Serpent with the Italian running very low 17 second lap times but run time still plagues him. A switch to 16% did give him an extra lap but he still needs more if he is to complete a heat without needing to do a stop.

Bruno Coelho is reporting that the RB pipe is working perfectly with his Sirio. The young Portuguese Mugen driver’s biggest problem was with the Collari 905 body shell, which he says is causing his car to run too hot. For his final run today he will revert to the Central Lola to see if that cures this problem.

Former World Champion Rody Roem

In general, very few of the top drivers are experiencing much problems with chassis set-up the big issue continues to be fuel consumption. Speaking to engine developer Rody Roem, the France based Dutch man believes drivers will need to adjust their driving style in order to conserve fuel. The new EFRA pipe has slowed the cars and as a result the drivers are on full throttle more which could be part of the problem. The former World Champion however believes if they switched back to 2007 spec pipes fuel would remain a problem as the engines are simply being pushed to their limits.

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July 23, 2008

Euros 08 – New in the Pits (Part II)

New Motonica rear end

As the drivers continue to get their laps in, in a bid to find those extra few tenths of a second and improve their run times, we took a look through the paddock to discover more new products and developments. Current European 1/10th scale Champion, Dario Balestri, is testing a new rear end on his Motonica. The car is using a prototype aluminium rear upper wishbone mount as well as prototype upper wishbones and the Italian is pleased with resulting changes in handling.

New Novarossi manifold

In the Novarossi cabin we were shown some new products that the company is testing, including a manifold. At the 1:8 Off Road Euros two weeks ago there were problems with the interputation of the new EFRA on manifolds and following clarification at the meeting on the Crete Island, Novarossi have been quick to exploit the new terms of the ruling which states the diameter of the inlet and outlet of the manifold should be 13mm. The prototype part complys to this regulation but uses a larger 15mm diameter tube (right) in an effort to gain more power. The company has seen some improvements but they say it needs further testing before they decide whether it should go into production.

Novarossi back pressure radiator

Also new from Novarossi is this back pressure radiator that their team drivers are currently running on their cars. Mounted inline with the back pressure tubing, it helps cool the gases that are flowing through it with the device measuring upwards of 80 degrees celcius when measured after a 5 minute run. Early indications from their drivers show that it does help and using it gains them a small advantage in run time, however the Novarossi team are still coming up short in this area.

KD Racing Chassis’

Also shown to us by French company KD Racing, are these machined aluminium and titanium parts. Available for Kyosho, Mugen, Serpent and Shepherd cars, these new chassis come in two versions, light and ultralight, with the difference being the amount of machining that has been done to it. The light chassis gives a saving of 50 grams, while the ultra light version, which is noticably lighter when holding it, saves 80 grams. KD Racing also have a number of other option parts including titanium mid axles, brake discs and and 2 speed oneway carriers, as well as full sets of ceramic bearings. Racers wanting custom machining can contact them with their request, with contact details being found on their website here.

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July 22, 2008

New pipe ruling keeps Sirio away

New pipe ruling keeps Sirio away

The Sirio factory team are noticeable absentees from this year’s 1:8 On Road Euros as the Italian manufacturer struggles to get its engines to work under the new 2008 EFRA pipe rulings. In an attempt to reduce noise levels, the sports European governing body introduced new specs for .21 exhausts for the 2008 season. The new pipes have reduced the noise but the design criteria has made it more difficult to tune engines as they now have a more critical sweet spot. Following the Warm-up race here in Valencia a number of manufacturer wrote to EFRA asking for the postponement of the new regs so as to give them more time to develop the new pipes but the ruling remains in place.

At the recent 1:8 Off Road Euros in Crete Sirio chief Andrea Rossi told Red RC they were experiencing problems with the new pipes and hinted that his line up of star drivers may have no choice but to sit out the Spanish event unless EFRA, to whom they had written, reconsidered its position. The team did not attend the Warm-up back in April for the same reason. In 1:8 Off Road the new pipe ruling has had a much lesser impact on engine tuning.

New pipe ruling keeps Sirio away

With the official Sirio team absent we will be without the talents of Francesco Tironi, winner of last month’s EFRA 1:10 Italian GP, and Dutch EP star Jilles Groskamp. It is unclear as to whether young Portuguese hot shot Bruno Coelho will race but so far the Mugen driver has not been seen at the track. Coelho’s father Cesar is one of the key organisers of the 1:10 200mm Worlds which take place in Portugal next month and it is understood important works to the Lisbon track have delayed their arrival here in Spain.

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July 22, 2008

Drivers still focussing on Run time

Valencia track Tuesday

With no official times to work off it’s hard to tell who is quickest, but looking on the track and talking to drivers its clear that the Shepherd team of Pietsch, Schaefer and Spanish racer Carlos Peracho are quick, while for Serpent its Salven who is still turning fast laps along with Mark Green and Oscar Cabezas. For Mugen, Rick V is doing some very fast laps as is Motonica team driver Dario Balestri. A lot of the top guys, such as the Italians, that you would normally expect to be quick are still working on choice of body and engine pipe combination before focusing on putting in really quick times.

Merlin fuel cans

It is precisely that search for time that has lead some racers to try fuel with a lower nitro content, with some drivers trying both 20% and even in some case 16%. With Spanish fuel firm Merlin present trackside to support their drivers, it seems that those racers using their fuel are the only ones able to try this. Merlin team driver Oscar Cabezas, who tried the 20% mixture, believes there is little or no noticable power difference and he did get longer run time, but for him personally there is still some run time needing to be found.

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July 22, 2008

Euros 08 – New in the Pits

Back pressure adjustment

While the action on the track is heating up as the drivers finalize their setups, we took a look through the pits to see what was new here at the event. Most interesting thing being tried is this back pressure adjustment needle on the car of Massimo Fantini. Mounted in the pressure line, it can be adjusted to best suit the present conditions and is currently being tested as a way to help conserve fuel. As always at gas races conserving fuel is super important and other racers are trying similar things, with many of the front runners adopting the CRF Constant pressure device in an attempt to make the 5 minutes.

Lightened Collari axles

Also new, and spotted on the Kyosho Evolva M3 of Alberto Picco, are these Collari made lightened spring steel axles that are designed to be used together with wheel nuts to keep the wheels perfectly true. Available for both the front and rear of the car, they have been lightened through the milling of small grooves around the outside of the outer edge.

Serpent fuel tank

Another interesting thing to note is that a lot of the Kyosho Evolva M3 racers are running with a different fuel tank to the standard version. It seems the Serpent tank is the most popular and helps cure the fuel pick up problems that the original tank apparantely suffers from.

Steel Battery plate

New on the bench of Adrien Bertin are some new optional parts for the Evolva M3, some like the aluminium front upper suspension arm brackets we have seen before, but others like this steel battery plate are new and similar to versions on other cars, adding weight to this optimal place on the car.

Matrix disk wheel

Finally, for now, the front disks that come with the Matrix tires are in use by factory Kyosho racers Ilia Van Gastel and Adrien Bertin. Said to make the turn into the corner smoother, they remain as a seperate disk over the spoked wheel to retain the flex benefits of such a wheel combined with the better aerodynamics of the disk.

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July 22, 2008

Europeans in Valencia gets underway

European 1/8th Valencia underway

The European 1/8th scale circuit Championships are in full swing as the competitors go into their 2nd day of practice here in Valencia. The weather is very hot and humid and is causing more problems for the drivers than for the machinery as everyone tries to stay in the shade, even at this early stage in the day. All the top names are here, including current World and defending European Champion Lamberto Collari as well as the other usual supects made up of many previous National and International Champions.

European 1/8th Valencia underway

So far the racers have been very happy with the track, a mix of high speed corners, flat out on and off the main straight, as well as slower 180 degree bends that test the car under braking and a tricky kink just left of the drivers stand where a lot of time can be won and lost. The traction is high and the kerbs are low, so the drivers have a wide sweet spot and they are presently trying the find the quickest way around. Racers that were fast yesterday were EFRA GP winner Robert Pietsch and his Shepherd team mate Patrick Schaefer, local ace Oscar Cabezas, Michael Salven who is on his first visit to the track and World Vice Champion Andrea Cristiani all racing Serpent. Practice is still underway so we will keep you posted throughout the day.

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