This is the exciting new HPI Nitro Star K4.6 Big Block 8 PORT .28 Nitro Engine! This may sometimes be referred to as the HPI K46 engine and the part number is HPI 15201 . This is a big displacement 4.6cc (0.28 cu.in.) nitro engine. This is what HPI states regarding this this powerful new engine:
High torque, 2.9 horsepower engine that is reliable, easy to maintain and easy to tune. Billet aluminum head provides high efficiency cooling, composite carburetor for consistent performance, pull starter equipped for easy starting.
RATED: 2.9HP @ 35,000RPM with MAX of 39,000RPM!
HPI Nitro Star K4.6 Big Block .28 Detailed Engine Features:
ABC Construction - The K4.6 engine features true ABC (Aluminum, Brass, & Chrome) construction — the ultimate in strength, durability, and high performance. The 8 port sleeve is made from durable chrome plated brass for strength and durability, and the lightened piston is made of lightweight aluminum for optimal performance. The knife-edged aluminum connecting rod is streamlined for performance and includes bushings on each end for added durability and strength.
8 Port Chrome Plated Brass Sleeve - Designed to operate at very high rpms and crank out serious horse power!
Flushed Screw Settings for Fuel Mixture - The stock carburetor settings are made flush for convenient “back to factory settings.” This avoids unnecessary damage to the needle that other traditional carburetor designs can cause.
Hand Adjustable High Speed Needle - Conveniently tune your engine’s high speed needle by hand - no tools necessary! Tuning your engine just got easier.
Machined Head - Billet aluminum heat sink for better cooling and durability. Machined cut-outs for convenient access to mounting screws for easy disassembly.
Huge 8.5mm Composite Carburetor - The composite material dissipates heat more efficiently than cast aluminum making your engine idle smoother and run more consistently throughout the whole rpm range.
Durable Finned Aluminum Crankcase - Cast aluminum crankcase is designed for maximum durability and heat dissipation with numerous heat sink fins.
Compatible with Roto Start Handheld Electric Starting System!
GREAT UPGRADE ENGINE! This engine will make an excellent big block upgrade engine for not only the HPI Savage trucks but also many other RC vehicles where a very powerful big block engine is desired. Since this engine is coming from HPI, outstanding quality and customer service should be a part of the package deal. This very POWERFUL 8 port .28 Big Block engine should put many other more expensive engines to shame! Should be fun!
AVAILABILITY UPDATE 02/09/05: We already have a shipment of these on the way, and they should arrive here some time during the week of Feb 14-18th. It might be towards the later part of the week. As soon as this is in stock and available to order, we will send out an e-mail to those on our Mail List. To sign up for notification, just click on the Mail List button in the left hand menu column.
