Nitro Star F3.5 Engine with Pullstart (Gunmetal/Black)
Composite Slide Carb./New Port Timing/Rear Exhaust/Pullstart/Includes Air Cleaner and Glow Plug (R5)

HB 21XZ-B HARA EDITION NITRO ENGINE
The engine that took Atsushi Hara to his second 1/8th buggy Worlds podium (and nearly won him two consecutive World titles!) is going to be available from HB as a special Atsushi Hara Edition HB .21 race engine. This engine will be the exact same spec as the engine he used at the 2010 Worlds in Thailand, and will be available for YOUR D8 or other racing buggy or truggy! FeaturesPro racing engine Exact spec as used by Hara at 2010 Worlds Vice-World Champion Race legal 3.5cc capacity Type 21J slide carburetor (wider range of needle adjustment, easy setup) Lightened & laser-etched Hara Edition cooling head Perfect fit for your D8 Atsushi Hara Edition or any top-spec racing buggy Hara Edition black reducer (6mm) Hara Edition DLC coated lightweight crankshaft (high response) Steel ball bearings Black crank caseSpecifications Displacement: 3.49cc (0213cu.in.) Bore: 16.27mm (0.641in.) Stroke: 16.8mm (0.661in.) Practical R.P.M: 4,000~40,000 r.p.m Power output: 2.6ps / (34,000 r.p.m) Weight: 362g (12.760z.)

NITRO STAR F3.5 Pro Rear Exhaust Without Pullstart
The HPI F3.5 Pro engine has been developed especially for off road racing. The HPI engraved oversized cooling head not only looks great but has been has been drilled and lowered over the crankcase for maximum heat dissipation and keep that all important C of G as low as possible. It fits on top of a separate Turbo combustion chamber. A finned black-coated crankcase design not only adds strength and rigidity but will also help cool the engine. The F3.5 Pro is a 5 port 3.49cc ABC engine and has been optimised for performance and durability without compromising on run time. Tested with the HB and HPI Racing teams with great success (UK National A Finalist already) the F3.5 Pro is an engine that can win at the highest level at a price that's ultra competitive. HPI F3.5 Pro Features: 14mm crankshaft 5 ports + 2 by pass Composite slide carburettor with interchangeable 8mm and 7mm venturi Black coated finned designed crankcase 3.49cc Bore: 16.20mm Stroke: 17.00mm Weight: 345 Gr Dust Protection Caps Max RPM: 50,000 Horsepower: 3.30