Spower Japan B7HP ‘Soul’ Hand Modified .21 Offroad

Following on from the release of its first hand modified racing engine that was specifically for 1:8 GT, Spower has added a second engine to the ‘Soul’ series with the popular B7TT .21 offroad engine undergoing the special treatment.  Based on long-stroke B7TT, the new B7HP piston/liner comes with hand modified conventional 3-ports type enabling more torque the power range.  The stronger DLC coating on new crankshaft has also hand modified with 2 tungsten counterweights contributing to consistent idling and quicker RPM response according to the throttle movements.  It also comes standard with Spower’s 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 not only makes the cooling head colourful but also makes it blend in with your car.  The factory combo setup with Spower Japan 75mm Exhaust Manifold + EFRA 2089 pipe, B7HP will provide a lot of power  plus best fuel mileage for your offroad racing needs.

Spower Japan B7HP SOUL Factory Hand Modified .21 Specification

Displacement: 3.49cc (0.213 cu.in.)

Power Output: 2.70ps/2.68 hp / 36,000 r.p.m.

Bore: 16.27mm (0.641 in.)

Stroke: 16.8mm (0.661in)

Practical R.P.M: 4,000~44,000 r.p.m

Source: Sworkz [sworkz.com]