#111595 - NITRO STAR F4.6 V2 ENGINE WITH PULLSTART
4.6cc/Composite Slide Carb./Rear Exhaust/Pullstart/Includes Air Cleaner and Glow Plug (R5)
Standard Parts | Optional Parts
The F4.6 V2 features a new crankcase and heatsink design with
larger heatsink fins for improved cooling. This new design also
makes the engine 37g lighter and 12mm shorter. A new pullstart
utilises a one-way bearing encased in a large 14mm hex for
increased durability.
The F4.6 is the powerplant responsible for the immense speeds and
raw torque in the Savage X 4.6, and now it's available to fit into
any Savage or big-block monster truck! It features all the race
tuning you could ever want in a big-block monster truck engine,
fantastic good looks and plenty of attitude! With 2.9 horsepower on
tap, it really is true that there's no replacement for
displacement! With 8-port race tuning, you get a huge powerband
through the entire rev range, all the way up to 32,000RPM! The
composite 7.5mm carb is heat-resistant for consistent tuning as the
engine warms up.
Technical specifications:
- Glow Plug: Cold R5 (HPI #1504)
- Displacement: 4.6cc
- Bore: 18.68mm
- Stroke: 16.6mm
- Power: 2.9hp @ 32,000RPM
- Carburettor: F1-7.5 (Composite 7.5mm)
Please see our Roto
Start Compatibility Guide to find the right Roto Start system
for this engine.
Download PDF instructions for #111595 (9 MB)
- Brand: HPI
- Part No: HPI-111595
- Barcode: 4944258022963
- Displacement: 4.6cc (0.28ci)
- Starter: Pull Start
- Fitment: Standard Part
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Pawel - 11th August 2021
Replaced my wrecked TT PRO28 BX-R with this engine on my Inferno Neo 3.0 and honestly I'm scared to drive it now. This is truly a beast on 1/8 buggy. Highly recommended, jaw dropping monster.
Jonathan - 1st September 2023
Fast delivery item was spot on
Jonathan - 4th September 2023
The engine is spot on I’m still running it in but it has lots of power
Can I fit a HPI Nitro Star F4.6 V2 Engine With Pullstart onto my HPI trophy 3.5?
Asked by Kieron Barratt on 21st June 2020
Yes that should fit fine
Answered by: Ben @ Wheelspin Models
Hi there i have a savage 25 2speed will this work straight away with the components i have allready?
Asked by Wayne Harrison on 25th September 2020
Yes that should work
Answered by: Ben @ Wheelspin Models
One question before ordering this little monster: is break-in done by manufacturer or do I need to accomplish this ?
Asked by Pawel on 8th August 2021
No you will need to run in this engine
Answered by: Ben @ Wheelspin Models
Will the HPI Nitro Star F4.6 replace a S25 Nitro Star engine in a Savage 25 without having to make any other modifications or upgrades?
Asked by Mike Hitchen on 19th March 2022
Yes this engine would be a direct replacement.
Answered by: Si @ Wheelspin Models
what roto start and backplate can i use with this
Asked by Scott on 12th August 2022
You would use HPI-160060
Answered by: Si @ Wheelspin Models
Do you guys sell the correct size fuel tubing for this engine?
Asked by Jessica Mckinney on 25th September 2022
This will just be standard nitro fuel tube. HPI-68186
Answered by: Si @ Wheelspin Models
Does this come how ot os shown on picture and does it come with the carburettor on it
Asked by John Walton on 7th January 2024
Yes, this will be as it is in the picture and does include the carb.
Answered by: Si @ Wheelspin Models
