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MGCC - MIDGET RACING CLASS
Competition Sec. Gil Duffy
Mallins Croft, Storridge
Malvern , Worcs WR13 5ER
01886 880882
gilduffy@supanet.com
39 years of Midget & Sprite
Racing
1977 -2015
These are the good old days
LACKFORD ENGINEERING MIDGET & SPRITE
CHALLENGE
2015
SPORTING & TECHNICAL REGULATIONS
The following are the formal technical regulations of the championship. This formal system is essential
but not sufficient, no set of regulations can cover all contingencies, and no system of policing can
detect all violations. The championship depends more on the conscience of the individual than on the
strictness of the regulations or the efficiency of it’s policing. If championship vehicle control is ever
conducted on the principal that anything goes that is not explicitly forbidden, the purpose of the
regulations will be frustrated and the championship’s reputation seriously damaged. Each member of
the Championship must make a conscientious effort to conduct himself at all times in accordance with
the spiritas well as the letter of the regulations
Page No 1 of 16 - Issue No2 31/01/15
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www.mgmidgetchallenge.co.uk
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PAST CHAMPIONSHIP WINNERS
YEAR
Class A
Class B
Class C
1977
1978
1979
S EVERITT
M WILSON
S EVERITT
LQUINN
M MARKS
T CAIRNES
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
D SHEPPARD
D SHEPPARD
T CAIRNES
T CAIRNES
S EVERITT
S EVERITT
S EVERITT
S EVERITT
M CHALK
A HEATON
T DOWLER
P MAY
R NETTLETON
M ELLIS
S WESTWOOD
T CAIRNES
P FELIX
R NETTLETON
R NETTLETON
J SIMPSON
P HILEY
P HILEY
G MYERS
P HILEY
P HILEY
1990
1991
1992
1993
1994
1995
1996
1997
1998`
1999
M CHALK
G ADAMS
L CUTLER
S WESTWOOD
L CUTLER
D SHANNON
C MONTAGUE
G ADAMS
G ADAMS
R WILDMAN
M JOHNSON
P MAY
B COGLAN
P MAY
K TEMPEST
P MAYNE
R WILDMAN
N ORANGE
D ECOB
R PERRY
D ECOB
R WILDMAN
P ROOK
D ECOB
T FARMAN
P HALL
W LANCASHIRE
W LANCASHIRE
W LANCASHIRE
P HALL
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
C ASHBY
C ASHBY
P MAY
P SIBLEY
E REEVE
R PERRY
E REEVE
W SMALLRIDGE
W SMALLRIDGE
P SIBLEY
P TIPPER
S GROVES
J BILSLAND
G PENN
W SMALLRIDGE
W SMALLRIDGE
M TURNER
M TURNER
P COLLINSON
D MOONEY
S RAINFORD
G PENN
G PENN
P DIGNAN
P DIGNAN
T RHODES
D MOONEY
D PRICE
D PYMM
D STANTON
2010
2011
P SIBLEY
P SIBLEY
N PRATT
I LANGFORD
D PYMM
R HOMER
Page No 2 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
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Midget and Sprite Challenge
From 2012 the Midget Challenge and the Healey Club Sprite Championship combined to form the
Midget & Sprite Challenge. The class Champions are :
Overall Champion in Bold :
Year
Class A
Class B
Class C
Class D
2012
2013
2014
Paul Sibley
Paul Sibley
Paul Sibley
Nigel Pratt
Tom Neat
Andy Southcott
John Collinson
Edward Easton
Carl Chadwick
Brian Bedford
Tom Walker
Nigel Lackford
Class E
Paul Campfield
Pippa Cow
Paul Campfield
Page No 3 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
Published Copy b
2015 Calendar
Midget & Sprite Challenge
www.mgmidgetchallenge.co.uk
EVENT
DATE
CIRCUIT
CLUB
1
March 29
MALLORY PARK
MGCC
2
April 6
CASTLE COMBE
CCRC
3/4
MAY 2/3
BRANDS HATCH
MGCC
5
MAY 30
DONINGTON PARK
MGCC
6
JUN 20/21
SILVERSTONE
MGCC
7
AUG. 8/9
CROFT
HSCC
8
SEPT 12
OULTON PARK
MGCC
9/10
OCT 10/11
SNETTERTON
MGCC
TEN RACES – BEST 9 TO COUNT
Page No 4 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
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2015 – Lackford Engineering Midget & Sprite Challenge
1. Sporting Regulations - General
1.1 Title & Jurisdiction:
The Midget & Sprite Challenge is organised and administered by the MG Car Club (MGCC) & Midget
Competition Group in accordance with the General Regulations of the Motor Sports Association
(incorporating the provisions of the International Sporting Codes of the FIA) and these Championship
Regulations.
The Midget Racing Group reserves the right to issue additional Newsletters clarifying or amending
items in these Regulations, due to" force majeure" or for safety reasons. These will then form part of
these Regulations, not withstanding D.11.1.3 (MSA Yearbook) All such Newsletters will be issued to
all registered Competitors.
MSA Championship Permit No CH2015/R091
Race Status: National 'B' Race.
MSA Championship Grade: C
1.2 - Officials:
1.2.1 - Co-ordinator:__T Storrar___15 Homespa House 37 Christchurch Rd Cheltenham L50 2NY
1.2.2 – Licenced Eligibility Scrutineer D F D Smith
1.2.3 - Championship Stewards P Best, C Stancombe, P Hall
Championship Stewards
(G)2.7. Championship Stewards may only adjudicate on any disputes, irregularities or
appeals arising from the approved Championship regulations.
(G)2.7.1. Championship Stewards are also empowered to consider any request from the
Championship co-ordinator to penalise any Competitor for any breach of Championship
regulations after holding a formal hearing to impose a penalty in accordance with
C.2.1.1 (subject to the rights of appeal provided for in Section C).
(W) 2.2.1. The Championship Stewards can only adjudicate upon any disputes,
irregularities or appeals arising from the approved Championship Regulations. They are
also empowered to consider any request from the Championship Co-ordinator to
penalise any Competitor for breach of Championship Regulations and, after holding a
formal hearing, to impose a penalty in accordance with C.2.1, subject to the rights of
appeal to the MSC provided in Section C.
1.3 - Competitor Eligibility:
1.3.1 - Entrants must:
(a) Be fully paid up valid membership card holding members of the MGCC and
(b) Be registered for the Championship
(c) Be in possession of a valid 2015 MSA Entrants licence.
1.3.2 - Drivers and Entrant/Drivers must:
(a) Be fully paid up valid membership card holding members of the MGCC ,
(b) Be registered for the Championship
(c) Be in possession of valid Competition (Racing) National 'B' minimum licence,
(d) deleted
(e). If participation in the Championship requires absence from education, a driver, in full time school
education is required to have the approval of their head teacher and a letter stating such approval from
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www.mgmidgetchallenge.co.uk
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his/her school in order to fulfil registration for the Championship. A driver shall not take time out of
their education to participate in motor sport without the prior written approval of their educational
establishment
1.3.3 - All necessary documentation must be presented for checking at all rounds when signing-on.
1.3.4 - The official Championship decals are mandatory and must be carried in the pre-designated or
otherwise agreed areas to entitle entry to the race start grid and score Championship points.
Any advertising permitted in other race series written on the vehicle must be solidly and totally
obliterated prior to and during practice and the race.
1.4. Registration:
1.4.1 All competitors must register for the championship by returning the Registration Form with the
Registration Fee to the Secretary prior to the Final Closing date for the first round being entered.
1.4.2 The Registration Fee is £60. (reduced to £40 if paid before28th February 2015) made payable to:
The Midget Racing Group
1.4.3 Registration numbers will be the permanent Competition numbers for the Championship.
1.5 Championship Events
The Lackford Engineering Midget & Sprite Challenge will be contested over the number of rounds
shown on the 2015 Calendar for Classes A, B ,C,D, E, & I. (see page 4) The number of races to count
is detailed in 2015 Calendar.
1.6 Scoring: To score Championship points See 1.3.4.
1.6.1 Points will be awarded to Competitors listed as classified finishers in the Final Results as follows:1st = 10, 2nd = 8, 3rd = 6, 4th = 5, etc. down to 2 for 7th place. All other finishers receive one point,
plus one extra point for pole position & fastest lap in each class.
Additional points are awarded to reflect grid size, calculated as follows:- Number of starters in class
minus finishing positions in class as detailed in classified results.
e.g. Finishing 3rd with 7 starters in class (6+4=10)
Race starters with race entry submitted on or before race organisers’ official entry closing date receive
one point
1.6.2 The totals from all qualifying Events less one will determine final championship points and
positions.
1.6.3 Ties will be resolved using the formula in W1.3.4 in the current MSA Yearbook.
1.6.4 Where the race distance has been reduced (2.6) it shall still count as a full points scoring round.
1.6.5 Competitors not registered for the Championship may be permitted on an individual round
basis and will:
(a) be deemed “Guest Competitors”
(b) not score points and for the purpose of points scoring will be ignored
(c) qualify for Event awards
(d) comply with the eligibility criteria as prescribed in Article 1.3. above, with
the exception of 1.3.1. (b) and 1.3.2. (b), as appropriate.
1.7 Awards
1.7.1 All awards are to be provided by the Organising Club.
1.7.2 Per Round: Classes A, B , C, D & E – Trophies for 1st, 2nd & 3rd places in each class subject to
2, 4 & 5 runners. Winners garland for overall race winner.
1.7.3 Championships:
Page No 6 of 16 - Issue No2 31/01/15
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www.mgmidgetchallenge.co.uk
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End of season trophies for all Classes will be provided by the Midget Racing Group
1.7.4 PRESENTATIONS:
Awards will be presented at the end of each event, and / or at the end of the Championship at the
designated presentation ceremony..
1.7.5 Entertainment Tax Liability.
No prize money or bonuses will be awarded
.
1.7.6. Title to all trophies:
If Provisional Results or Championship Tables are revised after any provisional presentations and these
revisions affect the distribution of awards the Competitors concerned must return them to the organisers
in good condition within 7 days
2. CHAMPIONSHIP EVENT MEETINGS & RACE PROCEDURES.
2.1 Entries.
2.1.1 Competitors are responsible for sending in correct and complete entries with the correct entry fee
prior to the closing date for entries before each event
2.1.2 Incorrect or incomplete entries (Including Driver to be Nominated Entries) are to be held in
abeyance until they are complete and correct and the date of receipt for acceptance of entry purposes
shall be the date on which the Meeting Organiser receives the missing or corrected information or fee.
2.1.3 Any withdrawal of Entry or Driver/Car changes made after acceptance of any entry must be
notified to the Meeting Organisers in writing. D25.1.12 applies
2.1.4 The Entry fee for each round shall be specified in the SRs and on the entry form
2.1.5 Reserves will be listed in the Final List of Entries published with the Final Instructions or in a
Bulletin.
2.2 Briefings:
Organisers should notify Competitors of the times and locations for all briefings in the Final
Instructions for the meeting. Competitors must attend all meetings.
2.3 Qualification Practice:
2.3.1 Should any practice Session be interrupted the Clerk of the Course shall not be obliged to resume
or re-run the session; the decision of the Clerk of the Course shall be final.
2.3.2 Each driver shall complete a minimum of 3 laps practice in the car to be raced and in the correct
session in order to qualify (MSA Regulations Q4.5.)
2.4 Races:
Should any race be disrupted the Clerk of the Course shall not be obliged to resume or re-run the race
(Q 5.4 ) (1.6.4 above applies)
2.5 Starts:
2.5.1
All cars will be released to form up on the grid prior to the start in formation as specified
on the grid sheet.
2.5.2
The start will be via Standing start The minimum Countdown procedures/audible
warnings sequence shall be:-
I. 1 minute to start of Green Flag/Pace Lap - Start Engines/Clear Grid.
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II. 30 Seconds - Visible and audible warning for start of Green Flag/Pace Lap.
III. A five second board will be used to indicate that the grid is complete.
IV. The red lights will be switched on five seconds after the board is withdrawn.
2.5.3 Any car removed from the grid after the 1 minute stage or driven into the pits on the
Green Flag lap shall be held in the pitlane and may start the race after the last car has
passed the startline or pitlane exit, whichever is the later to take the start from the grid.
2.5.4.
Any driver unable to start the Green Flag/Pace lap or start are required to indicate their
situation as per MSA Regulation (Q)12.13.2. In addition any driver unable to
maintain grid positions on the Green Flag Lap, to the extent that ALL other cars are
ahead of them, may complete the Green Flag lap but MUST remain at the rear of the last
row of the grid but ahead of any cars to be started with a time delay.
2.5.5.
In the event of any starting lights failure the Starter will revert to use of the National
Flag.
2.6.
SESSION RED FLAG
Should the need arise to stop any race or practice, RED LIGHTS will be switched on at
the Startline and RED FLAGS will be displayed at the Startline and at all Marshals
Signalling Points around the Circuit.
This is the signal for all drivers to cease circulating at racing speeds, to slow to a safe
and reasonable pace and to return to the pit lane, during practice, and to the starting
grid area, during a race, unless otherwise directed by officials.
Cars may not enter the Pits unless directed to do so. Work on cars already in the Pits must
cease when a race is stopped.
2.7.
2.8.
PITS, PADDOCK & PITLANE SAFETY:
2.7.1. Pits & Paddock:
Competitors must ensure that the MSA, Circuit
Management and Organising Club Safety Regulations are
complied with at all times.
2.7.2. Pitlane:
The outer lane or lanes are to be kept unobstructed to
allow safe passage of cars at all times. The onus shall be
on all Drivers to take all due care and respect the pit lane
speed limits.
2.7.3. Refuelling:
May only be carried out in accordance with the MSA
General Regulations, the Organising Club Regulations,
Circuit Management Regulations and the SRs or Final
Instructions issued for each Circuit/Meeting.
2.7.4.
Pit Lane Speed Limit will be as specified by the organiser
Speed Limit:
RACE FINISHES:
After taking the Chequered Flag drivers are required to:
I. progressively and safely slow down
II. remain behind any competitors ahead of them,
III. return to the Pit Lane Entrance/Paddock Entrance as instructed,
IV. comply with any directions given by Marshals or Officials
V. keep their helmets on and harnesses done up while on the circuit or in the
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pitlane
2.9.
RESULTS:
All Practice Timesheets, Grids, Race Results are to be deemed Provisional until all
vehicles are released by Scrutineers after Post Practice/Race Scrutineering and/or
after completion of any Judicial or Technical Procedures. (MSA regulation (D)26.5.)
2.10 Timing Modules:
As specified by organiser.
2.11 QUALIFICATION RACES
If any event is oversubscribed the Organising Club may at their discretion run
Qualification Races.
2.12 OPERATION OF SAFETY CAR:
The Safety Car will be brought into operation and run in accordance with Section Q,
Appendix 2 of the MSA General Regulations.
2.13 ONBOARD CAMERAS
Are permitted
3. Specific Championship Regulations
None
4. CHAMPIONSHIP RACE PENALTIES:
In accordance with Section C of the current MSA Yearbook
4.1. Infringements of Technical Regulations:
4.1.1.
Arising from post practice Scrutineering or Judicial
action: Minimum Penalty: The provisions of MSA
Regulations: C3.3.
4.1.2.
Arising from post race Scrutineering or Judicial Action:
Minimum Penalty: The provisions of MSA Regulations: C3.5.1 (a) and (b).
For infringements deemed to be of a more serious nature the Clerk of the Course will
invoke the provisions of Regulation C3.5.1 (c).
4.1.3 Additional Specific Championship penalties: Nil
5. TECHNICAL REGULATIONS
5(1) INTRODUCTION:
The following Technical Regulations are set out in accordance with the MSA specified format and it
should be clearly understood that IF THE FOLLOWING TEXTS DO NOT CLEARLY SPECIFY THAT YOU CAN DO IT
YOU SHOULD WORK ON THE PRINCIPLE THAT YOU CANNOT.
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ELIGIBILITY CHECKS: All cars will be subject to normal pre-race safety scrutiny. Checks for race.
 All engines must have two cylinder head studs drilled, two timing cover bolts and two sump bolts,
on one side of the engine, to enable locking wire to be inserted. When any engine or other
component is sealed these seals must not be removed without the prior authority of the MSA
Scrutineer.
 Any engine will be inspected in accordance with J3.1.5
 Any cost of stripping or rebuilding for inspection where an engine has been sealed at the specific
request of the Eligibility Scrutineer or his representative will be the responsibility of the competitor.
 It must be understood that the responsibility for ensuring the car complies with the regulations lies
entirely with the competitor, and if he has any doubt at all a written request for confirmation must be
made to the Championship Co-ordinator.
5(2) GENERAL DESCRIPTION:The Midget & Sprite Challenge is for Competitors participating in MG Midget/Austin Healey Sprite vehicles and include historic bodied versions of these cars including:
Ashley, Lenham, Sebring, Speedwell, WSM, Arkley to which Midget & Sprite Challenge regulations
prevail overall.
5(3) SAFETY REQUIREMENTS:
The following articles of MSA Appendix Section K Safety Criteria Regulations will apply:-.
[K1.2.1. to K1.7. minimum Drawing 1 or 2], [K2.1.2. K2.1.3,K2.1.4, K3.1.2b(period A-F) otherwise
K3.1.2a,
K5, K6, K8, K9, K10, K 11, K12, K13, K14.
5(4) GENERAL REQUIREMENTS & EXCEPTIONS:
Class A = Fully Modified Cars
Class B = Race Modified Cars
Class C = Road Going Cars
Class D = Cars conforming to Healey Club regulations 2011 (Class D)
Class E = Cars conforming to Healey Club regulations 2011 (Class E)
Class I = Invitation class. Cars invited at the discretion of the coordinator
Cars must comply with MSA General Technical Requirements as detailed in current Yearbook sections
Section J & Section Q
5(5) CHASSIS:
All Classes - The chassis or unitary construction of the car must remain to the Manufacturers
Specifications in construction and material except as defined below:Classes A & B - Reinforcing of chassis permitted.
Class A: The boot floor, rear outriggers, outer part of rear wheel arch and inner rear wheel arch behind
wheel centre may be removed. The battery & heater tray, front outriggers, and front wheel arches may
be removed. Front suspension top turrets may be cut back to original mountings and still use original
pick up points.
Class B: Front inner arches may be removed. All other areas of the body shell must remain intact,
except where mentioned elsewhere in these regulations.
Class D&E :without compromising safety or structural integrity, material may be removed from panels
which will be hidden from view when car is in use
5(6) BODYWORK:
5(6).1 PERMITTED MODIFICATIONS:
1. GENERAL: All Classes- Front & rear bumpers may be removed.
Class A - Flyscreens allowed
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2. INTERIOR: All Classes: Original seats, carpet, trim may be removed, alternative drivers seat may
be fitted.
Class C - Passenger seat optional or original OE seat may be replaced with matching racing seat.
Original dashboard must be retained.
Class D - As Class C above. Original pattern dashboard must be used - material free
Class E & A-free
3. EXTERIOR: (FRONT) All Classes - Front wings/valance/bonnet may be replaced in alternative
material.
Class A - Doors, rear wings, boot lid and rear valance may be replaced in alternative material.
Class B - Doors & boot lid may be replaced in alternative material. Rear body may also be replaced but
must be permanently bonded and steel boot floor retained. Quick release assemblies are not allowed.
Class C - One piece fronts in alternative material allowed with NO holes, scoops or bulges, except in
lower wing adjacent to door pillar and restricted to 2 off Holes each side - 50mm W x 150mm L Max.
Side window glass may be reinforced with clear plastic laminate sheet or replaced by 4mm thick
polycarbonate sheet
Class D: All body panels to be located as original. A one piece fibreglass front may be fitted. Original
grille surround to be retained
Class E: panel material free Mk1 sprites must retain the lighting pods.
(REAR): Class A - May remove bottom of rear panel up to 2 inches below bottom of the rear lamp
fixed plinth. No protrusions allowed beyond bodywork under boot area, except for exhaust pipe.
4. SILHOUETTE: All Classes - Must retain standard door apertures.
May use hardtops which were available at the date of the cars manufacture.
Class A - Original 1275 shape bonnets only allowed.
Control dimensions for forward protrusion of air dams/splitters - Not further than headlamp glass front
tip.
Frogeye bonnet (When fitted as appropriate OE) - Not further than front edge of bodywork (not flasher)
Undertrays may be fitted.
Rear aerodynamic aids to be limited to the confines of the original panels. The aids will not be
supported/devoid from the original panel in any way, but will be formed from the original panel. Height
above upper tip of the rear lamp cluster will be limited to 5 inches.
e.g. Width of spoiler limited to the centre line of the rear wing top line.
Depth to be limited to the original boot lid.
Classes,C, & D - To be as original. Class D and E - Special bodied Sprites allowed
Class B &E - Wheel arches may be flared to a Maximum of 2inches either side (external measurement)
from original line of bodywork
5. GROUND CLEARANCE: All classes minimum 40cm
5(6).2 PROHIBITED MODIFICATIONS:
1. GENERAL: All Classes - Headlamp cowls not permitted. Aerodynamic Aids to sills not permitted.
2. INTERIOR: Class C- Original dashboard, door window glass & winder mechanism may not be
removed
3. EXTERIOR: Classes B & C Must retain original shape and size of standard windscreen.
Class C - Removal of metal from the original steel monocoque construction - i.e. The front inner wheel
arches. Battery tray must remain in tact and unmodified. Steel boot-lid optional. No flared wheel arches.
5(7) ENGINE:
All Classes - BMC "A" Series (or Triumph 1500 type) engine blocks & cylinder heads must be
retained.
5 port cylinder heads only
Classes A,B & C: Maximum engine capacity 1500cc. Marina/Ital blocks permitted.
Classes B, C, D & E: Must retain standard length stroke.
5.(7).1 PERMITTED MODIFICATIONS:
(a) All Classes - Cylinder heads may be gas flowed and have ports/chambers re-shaped and polished.
Classes A ,B,D& E - Valve size free.
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Class C - Must retain standard size valves (Rimflow type valves are permitted)
i.e.' A' Series:- Inlet 1,31” Dia., Exhaust 1.15” Dia..
Triumph 1500:- Inlet 1.38” Dia., Exhaust 1.17” Dia.,
(b) Class C - On ‘A’ Series engines dished pistons (Min. 6cc Dish) must be used.
Triumph 1500 type engines must use standard specification pistons only
(c) All Classes - Reboring of cylinders permitted within proscribed limits.
(d) Classes A, B & E- Camshaft free. Camshaft drive free
Class C - All engine types - Camshaft free. Camshaft to be chain driven from crankshaft.
(e) Classes A & B - Lightening of engine components permitted.
Class C - Balancing of reciprocating parts is allowed. Engines must retain component weights to within
5% tolerance of homologated figures.
e.g. ‘A’ Series
Crankshaft
: 22.25 lb. (10.1 Kg)
Con-Rod
: 1.47 lb. (0.67 Kg)
Flywheel/Clutch : 23.02 lb. (10.4 Kg)
(f) All Classes - 948/1098/1275/1500 engines may be fitted to alternate chassis.
(g) Class C - On ‘A’ Series engines vernier timing gear may be used, with chain - not belt.
(h) Class D- Max capacity 1380cc. Valve size free. Valve gear and ratio free. Valve train free Steel
Main caps permitted. Camshaft free. Camshaft drive system free. Inlet manifolds free.
Electronic ignition permitted. Modifications to sump pan permitted.
(i) Class E - As Class D except cubic capacity free. Steel Cranks and Rods permitted. Stroke 82mm
maximum.
5(7).2 PROHIBITED MODIFICATIONS:
Supercharging, turbocharging, fuel injection, use of 8 port heads.
Electronic ignition systems triggered by Flywheel/Crankshaft or systems which process intelligent
information from engine and/or ambient conditions.
Class C - No off- set rockers/bushes/roller rockers or ratio changes.
’A’ series Maximum engine capacity must not exceed 0,060" overbore.
5(7).3 LOCATION: Class A only - Engine mountings may be moved.
Class E- Maximum displacement to rear of original position as measured from the centre of front
wheels 8 inches.
Classes C, D,& B- Standard location
5(7).4 OIL/WATER COOLING: Original type system to be retained.
Class C will use OE radiator in original position. Oil cooler may be fitted. Thermostat, by-pass hose &
Heater may be removed.
Classes A, B, D & E - Free
5(7).5 INDUCTION SYSTEMS: .See Yearbook J5.4.2. Applies to all classes.
Classes A , B,& E Carburettors & Manifolds free.
Classes C - Retain original carburettors & size of throttle bore/plate.
Class D- Twin SU, size free or single Weber up to 45DCOE
5(7).6 EXHAUST SYSTEMS: Free, but Classes B, C & D must not run through interior of body shell.
See - Ref. J5.17. Noise Limits
5.(7).7 IGNITION SYSTEM: Electronic ignition permitted subject to 5.(7).2
5(7).8 FUEL DELIVERY SYSTEM: All classes Free
5(8) SUSPENSION:
1. PERMITTED MODIFICATIONS:
FRONT All Classes - Must use standard steering rack, arms, stub-axles, suspension pick up points.
Class A - No restrictions to further modifications
Class B - As standard, except coil spring rates and length free. Pivot bush material and top trunnion
free.
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Published Copy b
Lever arm shock absorbers must be used, with single or double arm as top wishbone. Additional
telescopic front shock absorber may be used with additional top link to triangulate single arm shock.
Class C - As standard except coil spring rates & length free. Pivot bush material free. Top trunnion free.
Damper rate free. No additional links permitted.
Class D - As Class C but anti roll bar and drop links free
Class A -Rear No restrictions but must use original axle casing
Class B - Must retain original multi-leaf quarter/half elliptic springs but rate free. Dampers free.
No restrictions on additional links to locate rear axle. Must use original axle casing.
Class C- Rear, As Standard but spring rate free.
Class D - As Class C but Dampers free,Panhard rod free, Rose jointing permitted.
Goup E - Front: Anti-Roll Bar - Free. Bush material - Free.
Suspension – Original Armstrong damper body and lever arm and bottom wishbone must be retained.
Second rose jointed top link may be added.
Second link, if added, must pivot along the axis of the original lever arm and no further than 16.5cm
rearwards from the front edge of the original lever arm.
Camber/Castor – Lever arm top link may be modified by addition of rose joints and fabricated
trunnions to provide adjustment.
Springs - Original location, rate free; Additional dampers permitted.
Rear: Springs - Free. Bush material free.
Dampers - Free; Panhard Rod - free. Additional locating members free. Rose jointing permitted.
Independent rear suspension prohibited.
2. PROHIBITED MODIFICATIONS:
Class C - No front telescopic shock absorbers. No alteration to basic design. No additional brackets or
links or other fittings/panhard rods/ anti-tramp bars.
Class B – Fabricated front top wishbone replacing lever arm shock absorber.
3. WHEELBASE/TRACK:
WHEELBASE: All Classes - To be as original. i.e. 80 inches.
TRACK: Class A, D & E - free. Class B - Max. 50 ins. Class C - Max. 47 ins.
5(9) TRANSMISSIONS:
1. PERMITTED MODIFICATIONS: Class A, & E - Locked/ limited slip Differential.
All Classes - Rear axle ratios free/Competition half-shafts allowed
2.PROHIBITED MODIFICATIONS:
Classes B, C & D - Limited slip differentials
All Classes - Sequential Gearchanges.
3. TRANSMISSIONS & DRIVE RATIOS
Class C - Original equipment type gearbox casing/number gear ratios must be retained. Rear axle ratios
free
Class B - Close ratio gears allowed & Clutch free.
Class D : Rear Axle - Original casing, ratio free. Rear axle locations - 1 extra point.
Half shafts free. Gearbox - Austin A Series only,( ie'Dog boxes' not
permitted, ribbed casing permitted) ratios free.. Clutch and
operation free
Class A &E : Rear Axle - Casing original, ratio free. Additional location members free. Half shafts
free.
LSD or locked differentials permitted. Gearbox, clutch and
operation free,.
Class A Maximum number of gearbox ratios 4
Class E Maximum number of gearbox ratios 5
5(10) ELECTRIC’S:
Page No 13 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
Published Copy b
1. EXTERIOR LIGHTING: All Classes - Must be fitted with operable standard 7 inch
headlamp/bezel, standard tail lamp lens/bezel.
2. REAR FOG LIGHT: Mandatory as per current MSA Yearbook
3. BATTERIES: Position & Type free
4. GENERATORS: Class C & D- As per MSA yearbook J5.14.3
Class A, B & E - As per MSA yearbook J5.14.3
5(11) BRAKES:
1.PERMITTED MODIFICATIONS:
All Classes - Servos allowed. Dual circuit conversions, Competition pads / shoes, Aeroquip hoses
permitted.
Class A & E- Free.
Class B- Front disc/Rear drum only
Class C- Standard Discs and drums,. Brake cooling ducts using only existing panel apertures permitted.
e.g. side lamp holes.
Class D - As Class C except additional cooling holes may be made in backplates and cooling ducts may
be fitted into front valance or under the car.
2. PROHIBITED MODIFICATIONS:
Class C& D - Larger Disc/calliper/drums or aluminium drums. Bias valves
5(12) WHEELS/STEERING:
1. All Classes - Collapsible type steering columns may be used
2. PROHIBITED OPTIONS:
All Classes - original steel wheels
3.CONSTRUCTION & MATERIALS:
All Classes- Alloy
4. DIMENSIONS
Class A - 13" dia. x Any width.
Class B - 13" dia x 6.0" Max, width
Class C - 13" dia. x Up to 5.0" Max. width
Class D - 13" dia x 5.5" Max width
Class E - 13" dia x 6.0 Max width
5(13) TYRES:
1 SPECIFICATION:
Classes A & B – Free
Class C – 175/60-13 AO48-R M compound
2. NOMINATED MANUFACTURERS:
Classes A & B – Free
Class C - Yokohama
Class D- MSA List 1A + Yokohama A001R, A008R, A021R,A032R & A048R
Class E- As Class D plus Avon ACB10 and List 1B (Slicks not permitted)
5(14) WEIGHTS: Minimum as the car completes a race.
Class A - 510 kg.
Class B - 580 kg.
Class C - 620 kg
Class D- 620kg
Class E- 570kg.
5(15) FUEL TANK/FUEL:
1.TYPES: All Classes - Free,
2. LOCATION: Classes A, B &E - free.
Class C& D - Under or within boot, Steel or alloy.
Page No 14 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
Published Copy b
3. FUEL: Pump Fuel – Ref. As defined in section B (Nomenclature & Definitions ) current MSA
Yearbook
5(16) SILENCING:
1.SPECIFICATION: Free subject to MSA Yearbook regulations
5(17) NUMBERS and CHAMPIONSHIP DECALS:
1. NUMBERS - Black on white/Both sides and bonnet.
Championship Decals - Both sides behind rear wheel arch.
2. SUPPLIERS -(Decals). Subject to the co-ordinator’s approval, within the spirit of the class &
championship.
-------------------------------------------------------------------------------6 APPENDICES:
The following Commercial Undertakings are not subject to the Judicial procedures of either the
Championship Stewards and/or the MSA/MSC.
6.1 Race Organising Clubs and Contracts:
6.2 Commercial Undertakings:
6.3 Trade Support Vehicle Decals & Overall Patches:
6.4Promotional activities:
.
.
Lackford Engineering Midget & Sprite Challenge – 2015
I wish to register for the above championship in:(Tick Box)
Class A Fully Modified
[ ]
Class B -
Race Modified
[ ]
Class C -
Road Going
[ ]
Class D -
Healey spec Class D
[ ]
Class E -
Healey spec Class E
[ ]
I would like race number [
] if possible - requested numbers will be allocated on a first ‘come’ basis
Page No 15 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk
Published Copy b
Please write clearly IN CAPITALS
Name___________________________________
Tel. Home_______________________________
Address_________________________________
Business _______________________________
________________________________________
Mobile
_______________________________
__________________________________________________________________________________
Post Code___________________________ MG Car Club Membership No: ___________________
E Mail address _________________________________
Put a cross here if you DO NOT want your details disclosed to other drivers
[ ]
I enclose my cheque for £40 payable to MIDGET RACING CLASS (before 29th February 2015)
Thereafter £60 .
Day Membership £10 ( max two per year)
Or BACS transfer to: The Midget Racing Class
Acc No: 44110057 Sort Code: 60-01-13
Nat West Alton Branch
DECLARATION:
I confirm that in all respects my car complies with the 2015 MSA Regulations and that I agree to abide
by the rules of the Midget & Sprite Challenge 2015 and not to carry out any act which may damage or
bring into disrepute the Championship or the Midget Racing Class.
Signature_____________________
Date _____/___/_____
Post this application to the Competition Secretary.
A G Duffy Mallins Croft Storridge Malvern Worcs WR13 5ER
Or
E-mail (with Bacs ref) to gilduffy@supanet.com
Page No 16 of 16 - Issue No2 31/01/15
Published by Midget Racing Group –MIDGET & SPRITE CHALLENGE-2015
www.mgmidgetchallenge.co.uk