About T3 & T4 engines


Parra Tigers are a improved version of  2.5cc (T3) and 3.2cc (T4) engines  used for vintage purposes  but with  more technical changes to obtain better performances. Sure that  new Parra T3 and T4 diesel engines will be one of better machines at the market.

T4-1-2022

NEW  PARRA T4 “Combat"

It can be used  for Vintage competitions in combat or racing by experienced sportsman with knowledge in diesel motors. This engine is legal for BMFA rules:

Parra T3: Barton Classic 15, British Good Year, Vintage Team Racing class A, Oliver tiger combat, Vintage Combat.

Parra T4: Vintage Combat, Vintage Team Racing class B, 

Here are some of technical features of this Vintage style engine:

* Tiger 3 “Combat"  = 153 gr. 

* Tiger 4 “Combat" = 165 gr.

* All meassures on metric

* Steel Chromed cylinder and high quality piston. Fixed with a cylinder pin.

T4-2-2022


* For T3 “Combat"  two Special hight quality Swiss Ball Bearings; front 6x15x5 mm and rear 12x21x5 mm. Both with C4 axial play.

* For T4, “Combat” two special hight quality Swiss ball bearings;  front 6x15x5mm and rear 12x21x5 mm with C4 axial play.

 Prop driver with anti-snag of combat cord

* Ultra strong  and light weight quality and double balanced shaft, with chromed shaft-pin.

* High quality connecting rod with two Bronze bushings.

T3-1-2022


* 14,40 mm crankcase holes to adapt the engine at your combat or racing Vintage models with Oliver , Rothwell and other type of engines.

* Oversized crankcase reinforcement for improve strength

* Easy to dismanteling NVA assembly and ventury. Improve sealing and strength.

* Compact NVA for not break in case of collision.

* Easy to start and very powerfull.

* All spare parts available.

* And of course, with the best friendly service and direct technical assistance.

ALL ENGINES ARE AS “SPECIAL” PISTON & CYLINDER ADJUST Ensures little time of running-in.

T3-2-2022


PISTON LAPPING TOOLS AVAILABLE FOR THIS ENGINE. Get more performances from your engine..!!

ENGINE TEST BENCH FOR THIS ENGINE AVAILABLE…!!  CLICK HERE …!!


ots vs ringmaster T4

Parra T4 engine installed on Old Time Stunt models, using 10x5 propellers and 50 cc tank

ringmaster 3

Ringmaster original with Parra T4 and 10x5 Master Airscrew propeller. This hight torque and long stroke 3,2 cc engine  can move propellers designed for 5,5 - 6,5 cc engines.


classic FAI T3

Nice CLASSIC FAI team race (model built by Sion Burns), used in WCH. Australia 2016 moved by a fantastic Parra T3 engine with 7x6 propeller. Won Western Australia 2016 Championship.


T3 Aircar 1

Fantastic T3 Aicar of Steve Betney (UK) moved by a Parra T3 Diesel engine. Speed 80 mph

T3 Aircar 2














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