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| # 15201 |
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4.6cc/ABC/8 port/8.5mm composite slide carb./Aluminum heat sink head (Purple)/Rear exhaust/R5 Glow plug
Available from HPI Racing, the Nitro Star K4.6 engine, capable of propelling the Savage monster truck to speeds of 44 mph and wheelie off the line. The K4.6 is a 4.6cc (.28 cubic inch) big block engine that features a machined billet aluminium heatsink head for extra cooling, dual bushing aluminium connecting rod, true ABC chrome sleeve construction for durability, and a three needle 8.5mm slide carburettor with a composite body for better performance at higher temperatures.
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The carburettor features a factory re-set line on the high speed needle and “flushed” needles that make re-setting the carburettor to the baseline factory specifications quick and easy. This powerful new engine has 10% more displacement than our Nitro Star S-25 engine and is rated at 2.9 horsepower! This is a direct bolt-in replacement for the 21BB and S-25 engines; we recommend 17/47 gearing to prevent excessive wheelies. A pullstarter is standard equipment, and the K4.6 is compatible with the #87126 Roto Start System and #87127 Roto Start Backplate.
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Nitro Star K4.6 technical data- Size: 4.6cc (.28cubic inch)
- Horsepower @ RPM: 2.9 @ 35,000
- Maximum RPM: 39,000
- Bore: 18.6mm
- Stroke: 16.9mm
- Construction: ABC
- Heatsink Head: Purple Anodized Machined Aluminum
- Carburetor: 8.5mm Composite Slide Carb
- Carb Adjustments: 3 Needle, Flush Settings
- Case: Silver Aluminum, Rear Exhaust
- Connecting Rod: Dual Bushing
- Sleeve: 8 port
- Starting system: Pullstarter
- Recommended Glow Plug: #1504 Cold-R5 Power Plug
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 | If you demand high top speeds or sharper acceleration, this option part is for you! |
| This part fits the following kits |
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ENGI, EN28 |
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