HPI Nitro Star S-25 w/Pull Start 1406

This is HPI's Nitro Star S-25 Engine With Pullstart. This is the standard engine for the Savage 25 and the Savage SS monster trucks.

Features

• HPI Nitro Star S-25 w/Pull Start 1406

• Slide valve carb with flat-head screwdriver adjustment on needle valve

• ABC cylinder construction

• Purple anodized head

• Rear exhaust round port

• Flowed and counterbalanced crankshaft

• Machined pilot shaft crankshaft with collet preinstalled

• Knive-edged billet aluminum connecting rod with dual bushings.

Specifications

• Crankcase: 3.32" (from rear of case to front without shaft)

• Height: 4.41" (from bottom of case to the top of the head)

• Width: 1.81" (mount flange)

• Mount Holes: 1.42" (measured from center to center width)

• Mount holes: .82" (Between holes front and back)

• RPM: Over 38,000 RPM

• Horsepower: 2.5 @29000 RPM

• Crankshaft diameter: 5mm (clutch bell area)

• Crankshaft diameter: 6.7mm (threaded portion)

• Crankshaft screw: 3 x 12mm caphead screw

• Capacity: 4.09cc (.25)

Contents

• Nitro Star .25 (4.0) glow engine

• Glow Plug

• Air filter and replacement element

• Instructions

• Parts breakdown

• Decals

Requirements

• Glow fuel

• Glow starter

• Vehicle requiring a rear exhaust .25 engine.

• Tuned pipe

• Manifold

• Air cleaner

Comments

• Replacement pull-starter is HPIG1428.