HPI Nitro Star F4.1 with Pullstart Monster Engine HPI1408
HPI1408 HPI Nitro Star F4.1 W/Pullstart

HPI Nitro Star F4.1 with Pullstart Monster Engine HPI1408

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$149.95

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HPI Racing Nitro Star F4.1 engine with pull start used in the Savage X.

Big Block Power for big trucks!The HPI Nitro Star F4.1 is the next evolutionary step up from the proven HPI Nitro Star S25 engine. It features a new crankcase and upgrades to the cylinder, piston, connecting rod and crankshaft.

Composite body slide valve carburetor with 7.5mm bore. Anodized purple oversize cooling head. SG (pilot) type crankshaft. Two year limited warranty.

Fuel: Car blend with 20-25% nitro content
Misc Items: Fuel tubing and track equipment

Specs such as horsepower, bore, stroke and RPM were not provided-
contact HPI for further infomation
High Speed Needle Setting: Turn clockwise in 1/8 turn increments
to lean fuel mixture. Do not exceed 2-1/2 turns from flush
Idle Adjustment: Adjust for about 0.04" (1mm) gap between slide valve
and carb body at bore opening
Low Speed Needle: No adjustment recommended
Displacement: .25 cu in (4.1cc)
Weight: 14.99oz (425g) without air filter

Distance Between Mounting Holes Same Side: 0.83" (21mm)
Distance Between Mounting Holes Opposite Side: 1.4" (36.5mm)
Height/Bottom Mounting Flanges to Top of Cylinder Head: 3.8" (96mm)
Height/Bottom of Crankcase to Top of Cylinder Head: 4.3" (110mm)
Length from Pull Starter to End of Crankshaft: 4.4" (113mm)
Length from Pull Starter to Front Bearing: 3.3" (84.3mm)
Length from Center of Crankcase to End of Crankshaft: 2.9" (75mm)
Diameter of Exhaust Outlet: 0.59" (15mm)
Diameter of Carburetor Opening: 0.53" (13.5mm)
Diameter of Carburetor Bore: 0.29" (7.5mm)


Requires:

Fuel: Car blend with 20-25% nitro content Misc Items: Fuel tubing and track equipment"

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5 Stars hpi savage parts & service

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