February 11, 2026

Spower Japan P7HP EUii Hand Modified .21 Onroad Engine

Spower, the engine brand of chassis manufacturer Sworkz, has released its latest 1:8 Onroad competition racing engine, the P7HP EUii.  With its top performance Spower “魂”(SOUL) series now going to the RC speed machine, the new factory hand modified .21 Onroad engine is based on the world famous OS Speed Euro II.  Spower have made some modification work and took it to another level.  Based on Euro II spec cylinder with 7 ports they have a new design with the cooling holes added to the bottom of the exhaust with the newly designed crankcase.  The Spower design team have hand modified all ports to make it more efficient.  The stronger DLC coating on new crankshaft has also 3 tungsten counterweights contributing to consistent idling and quicker RPM response according to the throttle movements.  It also comes standard with new Spower’s 1:8 Onroad Boost rear cover plate which helps this high RPM engine work more stable from the top speeds to the lower range.  The new printing technology with racing style colourful cooling head makes it blend in with your car.  With the factory combo setup that includes the latest OS MR05 Exhaust Manifold + EFRA 2196 pipes, P7HP EUii will provide a lot of power for your racing needs together with the best fuel mileage.

Spower Japan P7HP EUii SOUL Features

Hand Modified 1/8 On Road Racing Engine.
Pre-Break-In for Cylinder/Piston System.
New Spower 1/8 On Road Boost rear cover plate is included.
Hand mad cylinder with 7 ports and piston have a new design with cooling holes.
DLC coating on the new crankshaft has 3 tungsten counterweights.
The new printing technology racing colourful cooling head design.

 



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