Home THE TRIALS CAR Engine by Grant Campbell

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Back End



Front End

Front End 2


Fuel tank




Other cars

The Trials Car engine is a 1600cc VW, runs no cooling, headers, Minnow Fish carburettor, Single port heads, 10.5:1 compression ratio, mild porting around the inlet ports, Piranha Electronic Ignition, 5.2kg flywheel, Ceramic clutch and long advance curve in the distributor.

Although VW engines are probably all past their use-by date, the best thing about them is their light weight. At 65kg all up it is much lighter than any Jap engine I've come across. Sometimes it is an advantage to have a relatively high engine, as a bit of weight transfer can help. In the main a low centre of gravity helps handling though and although I envy the 130 hp of the Toyota 4AG I've yet to be beaten by one on a long term basis.

I reckon, even after 20 years these little Minnow-Fish carbys are still the Demon Tweak for trials cars. I first imported one to Australia maybe twenty or more years ago for my second car. Although on this car I used twin Solex, then twin 40 DCN Webers when I had the twin port heads I just had to have another one of these. Simple to tune, very, very progressive, which is really needed in trials, totally reliable & easy to maintain. Click here for the next shot.