Category: Dailies

Photo: tqhh

Call us crazy, but the 600cc bikes to be used in 2011 for the FIM's replacement of the 250cc Grand Prix series sound less exotic than the current crop of sportbikes we can buy at the store right now. After comparing the specifications, we're thinking anybody with a 2009 model, track-day prepped, RSV-4, YZF-R1, 1198S, GSX-R1000, CBR1000RR, etc., will have a bike with cooler gizmos and capable of keeping pace. That just sucks.>

We're beginning to see the light, but it's painful florescent light. Even if the FIM had been smart, adhered to heritage and created a 500cc open 4-stroke class with no traction control and restricted use of exotic materials, we'd still have antiquated race machines. That's because for $30,000 or less, new motorcycles have things like traction control, fly-by-wire throttles, on-the-fly variable engine mapping and nonconventional firing orders. Not to mention gobs of usable power. We don't have to wait until 2011 to buy this kind of stuff, just the Spring. By 2011, we're guessing traction control will no longer be exotic but standard.

By 2011, exotic motorcycles will be probably be electric. Yeah, we know, we know! They're silent, moving parts aren't causing tiny explosions at rapid rates, ears are for bleeding. But let's face it. Combustible engines are just so 20th century. Well, it's either that or underground non-regulated racing with d.i.y. run-whatya-brungs accompanied by Tina Turner singing We Don't Need Another Hero.

We all need to accept the fact that we'll soon be saying, "There used to be this thing called Grand Prix racing, and it was sooooo coooool."


Technical Regulations:

1. Engine

1.1 4-stroke engines only.
1.2 Engine capacity: maximum 600cc.
1.3 4 cylinders maximum.
1.4 No oval pistons.
1.5 Engines must be normally aspirated. No turbo-charging, no super-charging.
1.6 Engine speed limited to maximum: 16,000 rpm. 4-cylinder engines
15,500 rpm. 3-cylinder engines
15,000 rpm. 2-cylinder engines
An electronic system supplied by the Organizers will be permanently attached to monitor and control engine speed.
1.7 Pneumatic valve operation is not permitted.
1.8 Inlet and Exhaust valves must be of conventional type (reciprocating poppet valves).
1.9 Variable valve timing or variable valve lift systems are not permitted.
1.10 Only wet-sump type engine lubrication systems are permitted.
1.11 Minimum weight of complete engine with throttle body, dry:
53 kg 4-cylinder
50 kg 3-cylinder
47 kg 2 cylinder

2. Inlet & Fuel System

2.1 Variable-length inlet tract systems
are not permitted.
2.2 Only one throttle control valve per cylinder is permitted. No other moving devices are permitted in the inlet tract before the engine intake valve.
2.3 Throttle bodies will have a maximum internal diameter (must be perfectly circle except for the area of dent or groove to allow the injector to come out) at engine side out-let of:
42 mm for 4-cylinder
48 mm for 3-cylinder
59 mm for 2-cylinder
2.4 Fuel injectors will be restricted to a defined type (tba, based on cost).
2.5 Fuel pressure must not exceed 5.0 bar.
2.6 No artificial cooling of intake air or fuel.
2.7 Only air or air/fuel mixture is permitted in the induction tract and combustion chamber.
2.8 No direct fuel injection into the cylinder/head/combustion chamber.
2.9 Fuel specification will be for standard unleaded fuel (commercially available EU-compliant "pump fuel").

3. Exhaust system

3.1 Variable length exhaust systems are not permitted.
3.2 Noise limit will be a maximum of 120 dB/A, measured in a static test.

4. Transmission

4.1 A maximum of 6 gearbox speeds is permitted.
4.2 A maximum of 3 alternate gear ratios for each gearbox speed, and 2 alternate ratios for the primary drive gear is permitted. Teams will be required to declare the gearbox ratios for each gear used at the beginning of the season.
4.3 Electro-mechanical or electro-hydraulic clutch actuating systems are not permitted.

5. Ignition, Electronics & Data-Logging

5.1 Data logger system will be supplied by the series Organizer.
5.2 Only the ECU/fuel injection control units supplied by the series Organizer are allowed to be fitted to the motorcycle. Electronic control units include the timing transponder,
engine RPM control, and datalogger systems. No other electronic control or datalogging systems will be allowed on the motorcycle. The price of ECU unit made by each engine manufacturer must be equal to or less than
JPY75,000 (about Euro650).

6. Chassis

6.1 Chassis will be a prototype, the design and construction of which is free within the constraints of the FIM Grand Prix Technical Regulations. The frame, swing-arm, fuel tank, seat and cowling are forbidden to use from a non-prototype as series production road-going motorcycle.
6.2 Minimum Total Weight: 135kg for 4-cylinder
130kg for 3-cylinder
125kg for 2-cylinder
6.3 No carbon brake discs.

7. Wheels & Tires

7.1 No carbon composite wheels.
7.2 The maximum permitted wheel rim width is: Front 4.00" Rear 6.00" or 6.25"
7.3 The only permitted wheel rim diameter is: Front 17" Rear 17"
7.4 The number of slick tires allocated to each rider per event will be controlled.

8. Materials & Construction

8.1 Construction materials will be limited to exclude expensive "non-conventional" materials and manufacturing methods (a list will be issued).
8.2 The following components must be made from iron-based alloys:
Valve springs, camshafts, crankshafts, connecting rods, piston pins, brake discs.
8.3 Engine crankcases and cylinder heads must be made from cast aluminum alloys.
8.4 Pistons must be made from an aluminum alloy.

9. General

9.1 Number of machines: the team can scrutineer
only one motorcycle per rider.
9.2 Number of engines: a maximum of 2 complete engines per rider is permitted at any event. Teams will be required to register engine serial numbers at Technical Control on the day before the first practice.
9.3 Apart from the above regulations, all other construction criteria, dimensions and specifications are as per the FIM Grand Prix Regulations.
9.4 The engine (excluding exhaust, throttle bodies and ECU) used in a race is available to be purchased by another competitor in the same race for a fixed price of €20,000 (Euro). Such purchase request must be made in writing to Race Direction within the protest period, that is within 60 minutes after the official end of the race. The transaction and delivery will be completed immediately at the end of the 60 m
inute protest period and will be underwritten by IRTA. Teams refusing to sell when presented with a valid request will be disqualified.

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