Tweeter button Facebook button

Piedrafita Technical Clarification

Posted on May 30, 2016

As published on StartlineOnLine..


This notice is a clarification and does not make any changes to current regulations.

There have been queries from members considering using the Piedrafita engine in Mono F3.

Regulation 5(7).1 allow for the use of Standard Production Engines as specified.

Regulation 5(7).2 allows for the use of the specified “Piedrafita” engine without modification, with a restrictor as specified and with the original Piedrafita seals intact. Previously issued Championship Technical Bulletin MRC/2016/1 sets the air restrictor aperture size at 28.5mm for Piedrafita engines.

Engines used in Mono F3 must comply with Regulation 5(7).1 OR 5(7).2 OR 5(7).3 as specified in the regulations.

Standard production engine parts and components and Piedrafita engine parts and components cannot be mixed and used together to make a single engine. This would produce a hybrid engine which is neither a standard production engine nor a Piedrafita engine, and a hybrid engine is not allowed.

Please also note that it is not a straight swap to fit a Monoposto compliant Toyota 3GSE Gen 3 engine in to a Piedrafita car as the head is different and changes to manifolds and engine mounts will be needed.

Cars using either the 3S-GE Piedrafieta engine or other Formula 3 specification engines must comply with the current F3Cup regulations on induction vacuum, notably:
“The material for the air box is free providing that it is not porous. The total air box system must be capable of sustaining a vacuum of ‘3 inches’ of mercury when using a pump drawing a maximum of 0.9 cubic feet per minute of free air. In the event of a failure of the vacuum pump test the following secondary test will be offered to the competitor concerned. With the engine at tick over, when putting a plug on the air restrictor of the intake system, the engine shall be stopped in less than 2 seconds. Declining the secondary test will be considered as a failure to comply. Any device or construction that is designed to adjust or alter the size, shape or length of the inlet tract/trumpets, or improve airflow, operated by any manner (electrical, mechanical, hydraulic or pneumatic) whilst the car and engine are in use, is prohibited under all circumstances. The engine shall have no mechanism which is capable of adjusting the valve timing following a mechanical, hydraulic pneumatic or electrical input whilst the engine is in operation.”

Search this site

Mono F3 Championship

1United KingdomAshley DIBDEN75
2United KingdomChris HODGEN57
3United KingdomNeil HARRISON48
4United KingdomSimon TATE41
5United KingdomBen CATER25
Full Championship Tables

Mono 2000 Championship

1United KingdomTerry CLARK57
2United KingdomBryn TOOTELL55
3United KingdomKevin OTWAY55
4United KingdomMat JORDAN37
5United KingdomTaylor MACVEAN29
Full Championship Tables

Mono 2000 Classic Championship

1United KingdomMarcus SHEARD45
2United KingdomPeter VENN32
3United KingdomNick CATANZARO30
4United KingdomJared WOOD26
5United KingdomIan HUGHES24
Full Championship Tables

Mono 1800 Championship

1United KingdomMatthew WALTERS80
2United KingdomChris LORD58
3United KingdomDavid JONES42
4ScotlandDoug McLAY37
5United KingdomPhilip DAVIS33
Full Championship Tables

Mono 1600 Championship

1United KingdomGeoff FERN65
2United KingdomEddie GUEST57
3United KingdomKevin BOTTOMLEY32
4United KingdomSimon PRUCE25
5United KingdomNigel DAVERS24
Full Championship Tables

Mono Moto 1400 Championship

1United KingdomJeremy TIMMS80
2United KingdomAndrew GORDON-COLEBROOKE60
3United KingdomTony GAUNTLETT10
4United KingdomJason TIMMS10
Full Championship Tables

Mono Moto 1000 Championship

1United KingdomRichard GITTINGS44
2United KingdomMick KINGHORN44
3United KingdomDan LEVY41
4United KingdomKyle CUTTS41
5IrelandMark READE32
Full Championship Tables

2016 Tiedeman Trophy

United KingdomGeoff FERN150
United KingdomBryn TOOTELL142
United KingdomLen TURNER111
Full Results


Next Events

  • Silverstone GP, R6: in 4 days
  • Silverstone GP, R7: in 5 days
  • Oulton Park, R8 & 9: in 32 days
  • Snetterton 300, R10: in 60 days
  • Snetterton 300, R11: in 61 days
  • Donington Park GP, R12: in 81 days

Monoposto has been ideal for Northbrook College, it suits our budget and the variety of venues is perfect for the student experience. We look forward to next year. Many thanks.

- Team Northbrook Racing

Everyone has been so welcoming and helped us out when we have been in need. The Championship has been excellently managed and we have thoroughly enjoyed every weekend

- Swansea Metropolitan University Team

2017 Monoposto Championship