H.M.M.R.C. Scale Drag Racing Version 3 12/05/2012
Front Engine Dragster N/FD NOSTALGIA or “FED”
Top Fuel and Junior Fuel Dragsters as long as the engine is in front of the driver
This class is aimed to replicate the slingshot dragsters that raced up to and including 1971
(eg SB/BB Ford/Hemi/Chev combinations)
General Car rules apply
Unlimited : Weight, 1x slot car motor.
Cars race heads up without restrictions on motor, weight etc
Prohibited: Wheelie bar/wheels or any item on the vehicle which would restrict the bottom of the front wheels
moving through to 8” off the track in a wheel stand.
Cars must be direct drive (eg. No clutch or slipper type drive systems)
Racing surface must be wiped fully clean before practice
Drivers have a maximum of two practice runs in each lane and must run in both lanes
Track closed between practice and qualifying, qualifying order to be drawn at random
Second qualifying run to start with list of drivers stepped half way through field to even out the track conditions
Note (1) Photographic proof may be required to allow cars to race where dimensions,
specifications or period parts may be disputable
Note (1) applies to ALL below
Body :
Front Engine Dragster style (Fuel Coupes and Comp Roadsters are not eligible to race as a FED)
Cars must have 1/24th or 1/25th scale driver inside a roll cage
Cars must have representation of a full scale motor complete with injection/supercharger, belts and pulleys,
heads, rocker covers, headers, scoops etc, motor must be in normal position
Cars must have a parachute
Front wing if any must resemble one that was used during that period on a FED
Any fuel tank displayed must be of appropriate scale
Chassis:
Chassis must be of in-line configuration.
Driving motor must move with chassis/body (eg may not stay level with the track in the event of a wheelstand)
Drop arm permitted to keep guide in slot in event of wheel stand
Maximum wheelbase of 240mm
Guide must be commercially manufactured and the blade is to be no longer than 26mm
Front Wheels :
Minimum overall diameter of 22mm and must replicate motorcycle style wheel
May be plastic model tires, foam or o-rings
Rear Wheels :
Minimum overall diameter of 29mm O/D and .400 wide
Rear rims to resemble what was used up to and including 1971
Tires must be foam/sponge slot car type material, black in colour
Wheels to represent those run during the period, suitable choice for wheels - Halibrands/American Racing,
period correct style
Any In-Line chassis
Must use Pro-Slot .550 Big Block Group 20 Drag Motor #PS-101
May replace motor brushes and springs with any “slot car motor” brushes and springs
"Shunts" not permitted
May align brush hoods
Armature may be com-trued
May re-space armature
Must use oil-lite type bushes
May solder can bush in place
May tighten bushes
No other modifications permitted
Minimum diameter for front rim is 15mm
Rear wheels must be Pro-Track 1 5/16 x 3/32 x .700 # PTC-N240 (plain) or PTC-N246 (drilled)
Rear wheels may be trued - minimum diameter for rear tires = 28mm
Outer sidewall of tire may be trimmed to outside edge of rim
Profile of curved edge must fit within template profile
Cars used must represent US designed and manufactured cars produced before 1980
Cars must resemble full size cars that would be able to be street driven with lights etc…
Hood may be modified to allow fitting of intake system (supercharger, turbo inlets, scoop etc)
Rear wheel arch may be lengthened but must remain stock appearance
General Car Rules
No minimum weight
General Race Rules
Index is .800, Pro tree to be used
Cars to be raced after Club Champs KT races each month, track conditions to suit these cars
During Practise, Qualifying and Racing only “correct” class cars permitted on the track
Qualifying order to be drawn randomly. Qualifying order to be used for “seeding” on elimination ladder
Maximum of 4 runs for practice prior to qualifying (2 runs per lane)
No “goo” is to be applied to tires prior to each run
Chassis
Kentucky Trash in-line chassis only to be used and built as intended
Must use any D motor can (case)
Must use any D can single ceramic magnets
Must use any D can end-bell and brush hoods
Must use any 16D or S16D armature
Must use oil-lite type bushes
No modifications to can and or end-bell other than holes for screws to hold end bell to can
May replace brushes and springs with any “slot car motor” brushes and springs
May re-balance and com-true of armature
May align brush hoods
May re-space armature
May solder can bush in place
May tighten bushes
Magnet shimming allowed
"Shunts" not permitted
Minimum diameter for front and rear rims = 15mm
Minimum diameter for rear tires = 25mm
Wheels must resemble full size wheels
In the case of wheels that are smaller than listed above when scaled to 1/24th proof of size may be required
for that car to pass “tech”
If an "open top" body is used then complete interior detail must be fitted
General car rules apply
Index of .990 (heads up start)
-400 full tree
The term “Kit set or resin bodies to resemble the style of ” Pro/Stock Cars that raced between 1970 and 1980 inclusive, is to allow cars to be raced that resemble the style of cars that raced in American Pro/Stock class
This way cars can be built that look the part but not have to be a replica
Drivers have a maximum of two practice runs in each lane and must run in both lanes
Track is to be closed between practice and qualifying, qualifying order to be drawn at random
Second qualifying run to start with list of drivers stepped half way through field to even out the track conditions
Nostalgia PS cars to run to fixed index of .990 with a .400 Full Tree
Some Super Stock cars also ran in the early days of NHRA Pro Stock and therefore are eligible to run as a
N P/S car as NHRA had a 2 year rule which allows 1968 and 1969 Cars to be run eg: ’68 - ’69 Camaro, Cuda, Dart etc
General Car Rules Apply
Note (1) Photographic proof from actual era may be required to allow cars to race where dimensions/specifications or period parts may be disputable - Note (1) applies to ALL below
Body :
Kit set or resin bodies used are to resemble the style of cars that raced in American Pro Stock races between 1970 and 1980 inclusive (vac formed bodies are not permitted)
The body is to be complete ie; removing or trimming bumpers and or lower body panels is prohibited
Hood scoops must resemble the style used on American Pro Stock cars between 1970 and 1980 inclusive
Rear wings or deflectors (if used) must resemble the style used on American Pro Stock cars between 1970 and 1980 inclusive
Parachute (if fitted) must be in the appropriate position
Cars must display appropriate period sponsor type decals (ie a street car with scoop is not eligible)
Cars must display a painted full interior with a 1/24th or 1/25th scale driver consisting of helmet, upper body, arms, hands and a steering wheel. The driver must be in the correct driving position
N P/S Cars are to resemble Pro Stock cars as they raced between 1970 and 1980 inclusive using period correct items, this covers body mods that were done, style of wheels and hood scoops that were used, type of helmets etc that are eligible to be used
Wheels :
Front and Rear wheels must resemble the style of wheels used on American Pro Stock cars between 1970 and 1980 inclusive
Minimum overall diameter of rear wheels is 29mm with a contact patch width of 10mm per tyre
Suitable ‘off the shelf’ wheels are => Pro-Track style B,G,H, JDS 7011, 7016 and WRP Centerline, Star and ‘Halibrand’ Style wheels
NB: bead lock rings and 3 piece style wheels were not used in Pro Stock racing prior to 1980