The Lotus Type 107 is a 3,506 cc, V8 naturally aspirated petrol engine developed in collaboration with Cosworth and used exclusively in Formula 1 between 1992 and 1995. Based on the Ford DFR architecture, it featured a 76° V — angle, dual overhead camshafts per bank, and a 32‑valve configuration. In race trim it produced approximately 650–700 PS at 13,000 rpm with peak torque around 420 Nm.
Fitted to the Lotus 107, 107B, and 107C chassis during the 1992–1994 FIA Formula 1 World…
Lotus
As a non‑road‑legal Formula 1 racing engine, the Type 107 was exempt from UK or EU emissions regulations (VCA Type Approval not applicable).
The Lotus Type 107 is a 3,506 cc V8 naturally aspirated petrol engine engineered for Formula 1 competition (1992–1995). It combines a Cosworth‑derived Ford DFR architecture with dual overhead camshafts and high‑revving valvetrain to deliver exceptional throttle response and peak power above 12,000 rpm. Designed under FIA technical regulations, it prioritizes performance over emissions or durability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,506 cc | |
Fuel type | Petrol (102 RON racing fuel) | |
Configuration | V8, DOHC, 32‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 96.0 mm × 60.4 mm | |
Power output | 650–700 PS @ 12,500–13,000 rpm | |
Torque | 400–420 Nm @ 9,500 rpm | |
Fuel system | Electronic multi-point fuel injection (Magneti Marelli) | |
Emissions standard | Not applicable (FIA Formula 1 racing engine) | |
Compression ratio | 12.5:1 | |
Cooling system | Water‑cooled (aluminum radiator, dry sump oil system) | |
Turbocharger | None | |
Timing system | Gear-driven DOHC with hydraulic lash adjusters | |
Oil type | SAE 10W-60 racing synthetic (FIA‑approved) | |
Dry weight | 132 kg |
The Lotus Type 107 was used exclusively in Lotus's Formula 1 chassis with longitudinal mid‑engine mounting and no external licensing. This engine powered the Lotus 107, 107B, and 107C race cars during the 1992–1994 seasons, with minor ECU and airbox revisions for each iteration. From 1995 onward, the team transitioned to Mugen-Honda V10 power, ending Type 107 development. All adaptations are documented in OEM technical bulletins.
The Type 107's primary reliability constraint is high thermal and mechanical stress at sustained 13,000 rpm operation, with elevated piston and valve failure rates in extended race conditions. Lotus internal telemetry from 1993 showed over half of race engines required top-end rebuilds after 800–1,000 km, while FIA post-race inspections frequently flagged oil pressure decay in the dry sump system. Aggressive driving without proper warm-up or cooldown makes valvetrain and bearing survival critical.
Analysis derived from Lotus technical bulletins (1992–1995) and FIA post-race inspection records (1992–1995). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
As a Formula 1 race engine, the Type 107 was designed for short life cycles (800–1,200 km). It is not reliable for extended use without frequent rebuilds. Historic racers use upgraded internals and conservative rev limits to improve durability. Original race-spec units require expert maintenance and are unsuitable for road use.
Piston ring land cracking, valve spring surge above 11,500 rpm, dry sump oil pressure loss, and cam gear wear. These are documented in Lotus Technical Bulletins LTB 93/02 and internal service notes. Thermal management and oil system integrity are critical to avoid catastrophic failure.
Exclusively the Lotus 107, 107B, and 107C Formula 1 cars (1992–1994). No road-going Lotus models used this engine. It was replaced by Mugen-Honda V10 power in 1995. The Type 107 was never licensed to other manufacturers.
In period, power was limited by FIA fuel flow and rev rules. Modern historic builds can reach 720–750 PS with updated cams, exhaust, and ECU, but require strengthened internals. However, the DFR-based architecture has inherent airflow limits compared to purpose-built V10s.
Not applicable in road terms. In race trim, it consumed approximately 65–75 L/100km (3.8–3.3 mpg UK) during Grand Prix weekends, depending on circuit and driving style. Fuel load was strictly managed under FIA refueling regulations (pre-1994).
Yes. Like all high-performance DOHC engines, it is an interference design. Cam timing errors or spring failure will cause piston-to-valve contact, resulting in severe engine damage. Precise valve train assembly is essential.
SAE 10W-60 full synthetic racing oil meeting FIA Appendix J standards. Brands like Mobil 1 Racing or Castrol Edge Sport are typical. Oil must be changed after every race weekend, and dry sump tanks require pre-race priming to ensure bearing protection at startup.
Comprehensive technical documentation and regulatory references
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LOTUS Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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