Lada 2105 VFTS (Group B)

Published on: Jan 18, 2016 @ 23:38
Originally Published in: 2015 (old website)
(C) Jay Auger - website owner & author
Notice: Any form of duplication methods (including but not limited to copy/paste of text and screen capture) of the website's content is strictly forbidden.

INTRODUCTION

This rear wheel drive rally car is based on the Russian VAZ-2105 model and built by VFTS (Vilniusskaja Fabrika Transportnyh Sredstv), which was founded and then managed by famous Lithuanian rally driver Stasys Brundza.


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HISTORY (summary)

Lada 2105 model

Production of the 2105 VFTS started in 1979 at the Vilnius plant in Lithuania, later receiving Group B homologation in October of 1982 under the moniker “VFTS-2” (which simply meant that it was the second rally model to come out of the company). All of VFTS’ rally cars were reputed to be simple, easy to repair, and allowed for decent performance at an affordable price.

The 2105 VFTS rally car made use of the same 1568 cc engine that was developed for the firm’s first rally vehicle, the Lada 1600. The naturally aspirated unit could more than double its factory output to a healthy 160 BHP thanks to the use of double carburettors, modified internals, and 100-octane racing fuel. The small engine displacement would efficiently put the car in the B/10 class (for engines between 1300 and 1600 cc) where it was more than a match for any similar competition.

2105 VFTS engine

Improvements were made available over the course of its production such as a reinforced rear axle housing in 1985 and a new 5 speed transmission in 1986. An interesting particularity of the 5 speed gearbox was the shifting pattern with its first gear in the far right corner above reverse, while second through fourth occupied the normal pattern of a 4 speed unit. This layout was perfect for rallying since 1st gear is hardly ever selected and allowed the most used gears to be lined-up with each other rather than crossed. Other improvements included the availability of lighter aluminium inner door panels, hood/bonnet (with an added inlet duct), rear trunk/boot, and polycarbonate side screens.

Improved 1986 version

The Lada 2105 VFTS competed in but a rare few World Rally Championship outings in the Group B era such as Finland’s 1000 Lakes Rally where it utterly dominated the B/10 class in 1986 by occupying the first 6 class positions. Russian rally driver Igor Bolshikh would finish 18th overall and first in class. However, the car was more competitive in Eastern Europe’s national events where it led most events and clinched an extensive list of podium finishes.

Production of the 2105 VFTS officially ended in 1990 with a total of 30 units built and sold around the world. The car was not affected by the infamous Group B ban since it competed in the B/10 class and continued to be widely used in rallies until the expiration of its homologation at the end of 1991.

The car had by then gained so much notoriety among rally enthusiasts of the old communist block that many privateers started to copy them and it soon became available as a kit car. Replicas still compete in various national rally club series to this day and is very popular in Hungary.

It is note to mention that VFTS also worked on the “Lada Turbo” Group B Prototype, better known as the Lada Samara EVA (click to learn more).


RALLY CAR SPECIFICATIONS

Group/Class B/10 Homologation number: B-222 (click to see papers)
Years active 1982~1991 Homologation

  • start: October 1st 1982
  • end: December 31st 1991
Engine
Type I-4, SOHC 8v, gas front, longitudinal
Displacement 1568 cc WRC = 1568 cc
Compression ratio 11.5:1
Output power – torque 160 HP @ 7000~7500 rpm 122~134 lb-ft (165~182 Nm) @ 5500~6000 rpm
Materials block: cast iron cylinder head: aluminum
Aspiration
  • Normal / Natural
  • 2 Weber 45 DCOE carburetors
Ignition N/A
Cooling system water-cooled
Lubrication system wet sump with 1 oil pump N/A
Transmission
Type rear wheel drive Spur 4 or 5 speed manual gearbox
Gearbox ratios
  • 1st: 3.67 or 2.46
  • 2nd: 2.10 or 1.67
  • 3rd: 1.36 or 1.19
  • 4th: 1.00
  • 1st: 2.89 or 2.37
  • 2nd: 1.89 or 1.72
  • 3rd: 1.51 or 1.43
  • 4th: 1.19
  • 5th: 1.00
  • F: 1.04
Differential ratios 3.53 or 3.06 2.37
Clutch single disc – dry
Chassis-body
Type
  • FIAT 124 modified steel monocoque chassis with roll cage, widened wheel arches, rear spoiler
  • 1986+: polycarbonate side windows, aluminium hood, trunk lid, and  inner door panels
Front suspension independent, struts, coil springs
Rear suspension reinforced straight axle, struts, coil springs, radius rods
Steering system worm roller gear 16.4:1
Brakes
  • F: 252.7 mm discs, 1-pot cast iron calipers
  • R: 250 mm drums
dual circuit with servo, adjustable ratio
Dimensions
length: 4090 mm (161.0 in) width: 1725 mm (67.9 in) height: 1400 mm (55.1 in)
wheelbase: 2424 mm (95.4 in) front track: 1365 mm (53.7 in) rear track: 1321 mm (52.0 in)
Rims – tires
  • 13 or 15 inch rims
  • N/A
Dry/Unladen Weight 920~950 kg (2028~2094 lb)
Weight/power 5.1~5.9 kg/HP (11.3~13.1 lb/HP)
Fuel tank N/A

HOMOLOGATION / PRODUCTION VERSION

Lada 2105 model

VAZ: Volzhsky Avtomobilny Zavod (now AvtoVAZ), is better known as Lada. The 2105, also known as the “Zhiguli”, was based on the Fiat 124 platform, and was introduced in 1979. Incredibly, the production of the model lasted until 2010. While it was obviously conceived as an economy car without any motorsport aspirations, the 2105 is still very popular among Russian and Eastern Europe’s automobile enthusiasts.

The VAZ 2105’s mass production far exceeded the 200 homologation units required by the Group B regulations. In such instances, the FISA/FIA could homologate a model for competition if presented with a limited series of minimum twenty “evolution” units, or cars equipped with the various VO (Variant Option) parts aimed at racing. This was the case for the VFTS.

2105 VFTS homologation car

Under normal circumstances, this would qualify the 2105 VFTS as being a genuine “evolution” (ET) model. Notwithstanding, the car received a normal Group B homologation on October 1st of 1982 (# B-222 / click to see papers).

2105 VFTS homologation car – rear

The VFTS company is known to have produced 30 of these special cars during its production run from 1979 to 1990. It has been since widely copied by rally enthusiasts all over the world.


ROAD CAR SPECIFICATIONS

There are too many different specifications for the normal production Lada VAZ-2105 model to list. However, some are available by CLICKING HERE!


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REFERENCES

(C) Article by Jay Auger – website owner & author

  • Images & videos are the property of their original owners
  • All homologation papers are the property of the Fédération Internationale de l’Automobile (FIA): SOURCE
  • DISCLAIMER / LEGAL NOTICES

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