Plastic News 

Announced: MFH 1/12 scale Fulldetail Kit : LOTUS TYPE 98T

Model Factory Hiro announced a new 1/12 Full Detail kit. This time it’s the LOTUS TYPE 98T!

The Lotus 98T was a Formula One car designed by Gérard Ducarouge and Martin Ogilvie and built by Team Lotus for use in the 1986 Formula One World Championship. Development of the previous year’s 97T, the car was raced by Brazilian Ayrton Senna, in his second year with the team, and Scottish newcomer Johnny Dumfries.

The chassis featured a lower monocoque than the 97T as a result of a regulation change stipulating a reduction in fuel capacity to 195 litres. The powertrain consisted of the new Renault EF15B turbocharged V6 engine, driving through a six-speed, manual transmission by Hewland.

The EF15B was to appear in two forms, the standard engine and the “D.P.” engine which featured pneumatic valve springs for the first time. At the end of the season Renault introduced the revised EF15C which in addition to the D.P. valve gear also boasted common rail fuel injection and much-revised water cooling through the cylinder head reducing the likelihood of pre-ignition (detonation). Power figures for this period of F1 history are largely speculative as most engine manufactures freely admitted that their testbeds would not have a sufficient power rating to measure the 1.5-litre turbo’s output at above 4-bar boost. It is claimed that the Renault EF15B in its pinnacle increment was claimed to produce in excess of 1000 HP at unrestricted boost pressure, thus making it one of the most powerful engines ever used in Formula 1 history.

This was, however, during qualifying, where teams used unrestricted boost pressures for maximum power output, and for very quick lap times. These unrestricted engines were very unreliable, and would only last about a couple of clean laps. Therefore, the 98T produced around 900 HP in race trim. The 98T was also the final Lotus powered by a Renault engine, as Lotus switched to Honda for the following year/season.

The gearbox came in two variants, a conventional five-speed, and a new six-speed. The six-speed was very much a development gearbox and was largely unreliable. While Senna opted to run only with the five-speed, Dumfries was tasked with testing the six-speed. Both gearboxes featured Hewland internals within a Lotus designed casing.

Other notable innovations of the 98T included a two-stage ride height adjustment, water injection through the intercoolers, an early form of barge board (also present on the 97T), and an advanced (for the time) fuel consumption microcomputer.

  • The 98T was designed by Gérard Ducarouge, who achieved great result in the previous designs. The 98T was based on the previous model 97T and installed with the Renault turbo engine and with improved aerodynamics to utilize the power of the engine.
  • The shape of the rear cowl part was changed and to be integrated with the side parts , front wing changed to straight type, and the side of the diffuser had been also cut. The shape of monocoque, rear suspension design, transmission, engine champer, intercooler, and radiator etc. are updated in 98T.
  • Together with the transforming to 1/12 scale, the shape of parts had been reviewed and newly designed. Changes between 97T and 98T will also be.
  • This kit will be including the V6 engine, the pioneer of installing turbo in the F1 engine, with the unique mechanism.
  • The wheel rim(Ver.A/B) are made of aluminium, the wheel dish are made of aluminium and coated with almite gold colour.
  • The carbon pattern which in many places in the monocoque will be reproduced by the carbon patterened silk-screen printed decal sheet.
  • This kit is a multi material kit. Various pipings, tubes, mesh hose, and etc are included.
  • The under plate will be a large photo etch piece, to increase the level of reality and the texture.
  • The cowl is attached by screw and can be easily detached to review the interior parts.

Check out the MFH website for more information.

Related posts

Leave a Comment

%d bloggers like this: