Honda RA618H

The Honda RA618H was a V6 1.6L turbocharged hybrid engine developed by in . It was used in the Toro Rosso STR13 and was the first Honda engine to be used by Toro Rosso.
 terminated their engine supplier deal with Honda at the end of the season, with the team switching to engines. With Renault, McLaren, and all set to use the Renault power unit in 2018, the French engine manufacturer expressed concern they would not be able to supply engines to that many teams.
Toro Rosso terminated their deal with Renault in September 2017, signing a new engine partnership deal with Honda for 2018. This would eventually, result in Red Bull also signing a multi-year deal with the Japanese engine supplier in .
==Specifications==
===General===
*Type: Honda RA618H
*Minimum weight: 
*Primary PU components:
**Internal Combustion Engine (ICE)
**Motor Generator Unit – Kinetic (MGU-K)
**Motor Generator Unit – Heat (MGU-H)
**Energy Store (ES) 
**Turbocharger (IHI)
**Control Electronics
===Internal Combustion Engine===
*Capacity: 
*Cylinders: Six
*Bank angle: 90 degree vee angle
*No of valves: 24
*Max speed: 15,000 rpm
*Max fuel flow rate: 100 kg/hour (above 10,500 rpm)
*Fuel consumption: ‘lights to flag’ regulated fuel capacity limit
*Fuel injection: Direct injection, single injector per cylinder, 500 bar max
*Pressure charging: Single-stage compressor and exhaust turbine, common shaft
*Fuel supplier: Petronas Primax
*Lubricant supplier: Petronas Syntium
===Energy Recovery System===
*Architecture:
**Integrated Hybrid energy recovery via Motor Generator Units (supplied by Honda)
**Crankshaft coupled electrical MGU-K (supplied by Honda)
**Turbocharger coupled electrical MGU-H (supplied by Honda)
*Energy Store:
**Lithium-Ion battery, between (supplied by Honda)
**Maximum energy storage, 4 MJ per lap
*MGU-K:
**Maximum speed, 50,000 rpm
**Maximum power, 120 kW
**Maximum energy recovery, 2 MJ per lap
**Maximum energy deployment, 4 MJ per lap
*MGU-H:
**Maximum speed 125,000 rpm
**Maximum power, unlimited
**Maximum energy recovery, unlimited
**Maximum energy deployment, unlimited
==References==
Category:Honda