Tamiya 1/20 Renault RE-30B
KIT #: 8305
PRICE: $? 
DECALS: Two options
REVIEWER: Mark Hiott
NOTES: Kit decals yellowed. Indycals decals used

HISTORY

In 1966, the FIA ruled that normally aspirated engines would displace 3.0 liters and turbocharged engines would displace 1.5 liters. Most of the teams were not willing to give up half the cubic displacement and turbos were know for ďturbo lagĒ on acceleration.

Renault, however, decided to give it a try in 1977 with their RS-01. No wins were forthcoming, but Renault continued to improve the engine. In 1979 the RE-10 utilized twin turbos and ground effects. Jean-Pierre Jabouille won the French Grand Prix and took four pole positions. In 1980, the RE-20 brought the team 3 wins and the writing was on the wall. So much so that Renault, Ferrari, Toleman, Brabham and Alfa Romeo all entered 1.5 liter turbo cars in 1982.

The RE-30B, introduced in 1982, was a twin-turbo, intercooled 1492cc V-6 producing 560hp. An intercooler is only used on a turbocharged engine and helps cool the intake air for better performance. It is said that for every degree in cooling an increase of 1 horsepower is possible. The RE-30B made it debut at the South African GP with Alain Prost winning. Prost and Arnoux finished 1 & 2 at the French GP and they went on to win at Italy and were on pole 10 out of 16 times. (As a side note, one can see from how far forward the driver sits that injuries to the feet and lower legs were a major problem when drivers crashed their cars. Ed)

THE KIT

Tamiya really is the standard for injection molded Formula 1 kits. Molded in yellow and silver plastic with chrome wheels, four nice rubber tires are also included. The chrome on the rear wheels doesnít quite cover all the way, but itís really hard to tell. Detail is crisp with no flash on any of the parts. The instructions are the usual Tamiya instruction book. Nicely done with 16 assembly steps, photos of the assembled model are spaced through out the instructions. Color callouts are giving for Tamiya paints and a 4-view decal placement guide is on the last page. The decals in my kit were yellowed and even after bleaching in a window, were unusable.  One version of the car can be done with either driver, Alain Prost or Rene Arnoux.

CONSTRUCTION

 I really didnít have much trouble with this kit. The only down side is that, given the design of the car, the instructions jump around a bit. You go from engine to rear end to chassis then back to engine. It takes a bit of work to get it all to fit together just right. I began with the engine; it is quite a kit in itself, being made up of a total of about 20 or so parts, not including the exhaust. I assembled the block completely and then painted it. The rear suspension was next, take care here as the parts are left and right handed.

The chassis tub, front suspension and cockpit are built as an assembly. After assembly of the chassis and front suspension, I added the cockpit. The cockpit is quite simple being made up of a one-piece seat and a shifter handle. The front suspension is a bit fiddly and I canít understand why Tamiya gives you a piece of wire for the linkage. The steering is workable but making a plastic part canít be that hard!

The engine is then attached to the back of the tub. The turbos and the intercoolers are assembled (but NOT attached) on the lower panel and allowed to dry. The turbo/intercooler is then attached to the bottom of the chassis tub. This is where the build gets interesting, fitting the exhaust. If you got everything assembled straight, the pipes should mate to the turbos with no trouble. The only real trouble I had was that the center pipe on left side would not fit to the block, I had to cut the pipe but I donít think itís too noticeable. The lower body panel is then glued into place. Allow this to dry overnight and then mate the rear suspension to the engine. You cannot attach the rear suspension prior to this as part of the lower panel passes through the suspension arms. At this point the intake plumbing is added and the side pods assembled. I left off the turbo and waste gate exhaust pipes until I had fitted the chassis top. I used the opening in the top panel to make sure of their positions. All that is left now is to attach the tires and rear wing.   

COLORS & MARKINGS

 As I stated before, my kits decals were not useable. I ordered a replacement set from Indycals. I would advise anyone building an Indycar or an F1 car to give Indycals a look.

The engine was painted MM Acryl French Blue and the suspension parts acrylic Gunmetal. The car was painted with MM Gloss White, Gloss Yellow and Gloss Black enamel. I shot the white first, masked it off and then shot the yellow. The rear wing and nose were painted black separately and then added to the chassis. Bare Medal Foil was used on the tub and lower body panel, with the lower front tub section being painted Gloss Black.

I chose to do the car up as the Rene Arnoux car. The only difference between the two, are the driver name and number. I just like blue. The Indycals decals went on with no trouble and needed no setting solutions. Mike even gives you a bit extra on the rear cowl decal so you have some leeway in positioning. There were 2 black ďRenault ElfĒ decals I could find no place for, but Mike informed me they were for the sides of the fuel tank.

After decaling, the windscreen, mirrors and rear wing were attached.

CONCLUSIONS

Typical Tamiya Formula 1 kit. A bit fiddly at times, but an easy build. If you like the F1 turbo era cars, you canít go wrong with this one.

REFERENCES

The Internet

Instructions for the history

www.indycals.net

Mark Hiott

October 2009

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