January 2011

day like today altaya Citroen C4

Citroen C4 WRC

From concept car to the slopes
result of collaboration between specialists in design and competition, the C4 Citroën Sport concept car was a project that was not put to any statutory limitation, a true exercise in style, a challenge to articulate a vision futuristic successor to the Xsara WRC, car 3 times winner of the World Builders, between 2003 and 2005. After passing through the expert hands of Citroën Sport's engineers at Versailles Satory, the C4 Citroën Sport concept car became the C4 WRC.

Adjustment rules

car adaptation to the international force and the needs of the high competition has necessitated a time in the Office of Studies Citroën Sport. The overall style has been preserved.

The working group on this issue stock builds a first version, far from the original concept car. For example, the glass ceiling no longer, as it is banned in rally racing. The front and rear wings, bumpers and spoiler were modified in order to meet the performance criteria and regulations. Various body components are studied in the wind tunnel, in a first phase at ¼, to save time and money, before being finally approved actual size.

outline of the development program

development program is validating and mechanical parts designed by Studies Office. In a first step, we study the reliability and in the second performance. To do this, it has taken several workshops in both asphalt and gravel. Then the technical team of Citroën Sport C4 performance compares with the Xsara WRC, which is the great reference. Development phase, the Citroën C4 WRC features a great potential and efficiencies that can be verified only during the competition.

expectations and objectives

In Citroën Sport, mechanics, engineers, pilots, and managers looking forward to the race result, with a C4 WRC has been designed to be as easy to drive and as reliable as the Xsara WRC, but with greater performance and efficiency. A car built and developed to try to win the Constructors' World Championships and Pilot, from 2007.

Main technical characteristics of the Citroën C4 WRC Like his illustrious brother, the Xsara WRC, the C4 WRC is a vehicle that has 4 wheel drive and a 2-liter turbo engine mated to a transverse gearbox 6-speed. The specificity of the C4 WRC is longer than the Xsara, to exceed 4'20 m. This allows, by regulation, benefit from a greater width, which goes from 1,770 to 1,800 mm. This change provides, theoretically, increased cornering stability. As it imposes new regulations have reduced the electronic driving aids to levels identical to that of the Xsara WRC 2006. Regarding the budget cuts imposed by the regulations, the subsets of the C4 WRC, such as engines, gearboxes, differentials front, center and rear shock absorbers, etc.. should be more reliable and designed to last longer.

Technical Citroen C4 WRC

Motor

Turbo Engine Developed from XU7JP4

Layout: transverse tilted 25 ° towards the exhaust

Number of cylinders: 4 in line

aluminum block Displacement (cm3): 1998 Maximum Power (hp / rpm): 315 to 5,500

Maximum torque (Nm / rpm): 58 at 2,750

Distribution

2 overhead camshafts driven by toothed belt

4 valves per cylinder

Food

Magneti-Marelli multipoint injection 2KR

Type

Transmission 4 wheel drive

Clutch carbon tridisco

mechanical front and rear axles - Central Bridge

driven control Gearbox 6-speed sequential semi

Front brakes

Asphalt: ventilated discs, 6 piston calipers

Earth: ventilated discs, 4 piston calipers

rear brakes and ground Asphalt: ventilated discs, 4 piston calipers cast front / rear adjustable control handbrake

hydraulically

Suspensions

Front and rear: MacPherson struts with coil spring dampers

Citroën / Exe-TC

Assisted Steering Hydraulic

Wheels Rims Asphalt: 8 x 18 inches Tire

Earth: 7 x 15 inch BF Goodrich Tires Asphalt: 225/40-18 BF Goodrich Tires

Earth: 215/65-15

Size Length: 4,274 mm Width

1,800 mm Wheelbase: 2,608 mm Front track

and rear: 1,598 mm

Weight 1,230 kg (the minimum allowed)

The

altaya c4

Technical data

Battle
80 mm Body Weight 58 mm transmission Value transm 57 mm Guide type ARS screws

Car weight 87.8 gr		Distance 92.5 mm
29.8 gr		wheel track width.
Type 4x4 double pinion		diameter wheel after. 19.5 mm
9 / 27 = 3		wheeltrack.
classic swing		wheel diameter. 19.5 mm
5 (2 +2 +1)

Motor RX-81 B 19,000 rpm
Total (4x4) Front Ø 18.3 x 9.8 mm Rear Ø 18.3 x 9, 8 mm The car is really well done with a near-perfect measures. we do not understand is that was what happened to the inside of the really very careless and lightly painted.

Drive


The scx c4 is one of those cars that must be present in our collection.

The tilt of it is a bit more complicated given that we release the screws the model has the grill that is part of the chassis recessed in the body with which it is difficult but still works very well.

But speaking outside good, very well achieved in this case we have the bull of altaya network with the same paragraph Dimensions and mechanical than
scx motorization the classic double the rx81 b axis in this occasion with bronze gears and teeth 9 of 27 plastic crowns.
always remember that these models much appreciated and a good running prior to mesh more smoothly the whole crown, pinion, and engine.

Let us play with the model to the track to see its behavior. Remove the magnet and roll, from early moves we like this car gives us a sense of focus behavior of the same make, sure are not careful, a great time curves, the grip of the tires is right, lets you control the car and also move the rear if necessary.

stopped at boxes for a review and some changes that allow us to get all the juice this c4, to disarm the car was not surprised to find that the rear axle was slightly bent so showed no problems even in the first test.
assemble wheels ninco brand pro 16 "that really are very good, we changed the ratio to 24 in the crown 27 on the front and rear axles pro calibrated and shredded tires.

The car changed radically and another, the change of relationship makes the things out of the corners and increased grip from the wheels fall time ago, management is somewhat more complicated but is carried away, while the car is rather narrow and somewhat high, really do not notice Carried away by the sections with ease and preparation do not really take long. It really is a car
highly recommended to have and enjoy and not Ableman of track lighting is excellent.

ovbiamente not live up to the ninco by ovbios and "wide" reasons, but this model has been rallying scx perfect.

here's another good note c4 but ninco by our friend read
http://simplementeslot.blogspot.com/2011/01/citroen-c4-wrc.html

thank BC
slot for the pictures in facilities. Greetings

mex22

Thanks to the organization of a friend of the slot fabiyo one of many that he gave this Hobb

and organize a career there for chascomus with barbecue including appointment that we could not let go to enjoy some time with friends and slot.

The view of the place is very impressive

People came to the meeting ...

varioooss
after about 130 km more or less ...

we reached the place ...

a panoramic

input and go to the track just we we find this

and the part that we need ..

a picture really fast and fun for others with straight, ups, downs and had his truquillo mixed.

increasingly difficult
had a part that unfortunately the car disappeared from view so that the pilots had to walk "guessing" where to brake and accelerate again since this curve was behind the bridge.

mixed Details rest of the track ..

These practices are limited to only 2 min withthe via which the pilots had little time to adapt their machines , Although the regulation only allows free tires front and rear circumvented by the organization.