Also ich tippe auch mal auf entweder Zubehör von BL selbst oder SAH oder andere.
In den Unterlagen hab ich auch nur 4 1/2 J gefunden. Auch bei den letzten 1973er Modellen (ca. 4000):
"Here come the '73 Triumphs - January, 1973
TR-6 offers Air Conditioning
...
Spitfire now has 1500 cc
...
Power Brakes for GT-6
Power-assisted brakes, wider rear track for better handling and all-around tinted glass for additional occupant comfort are among the new features of the 1973 Triumph GT-6 Mk 3 fastback sports coupe announced by British Leyland.
Other changes for 1973 include restyled instruments, a smaler steering wheel for easier exit and entry, redesigned seats with adjustable head restraints and improved throttle linkage. In addition, there are four new exterior colors and a new interior color.
The servo assist reduces overall braking effort by applying a power boost to the front disk brake calipers. The rear brakes are of the self-adjusting drum type.
The rear track increase is from 49 to 51 inches, providing more cornering stability. Front track remains 49 inches. The GT-6's suspension is completely independent.
New exterior colors are French Blue (a mid-blue), Carmine (a mid-red), Mimosa (yellow) and Magenta. There are six other exterior color choices. Interior colors available in the GT-6 are black, tan, blue and chestnut, with chestnut the new shade for 1973.
A special valve has been added to the GT-6's six cylinder, 122 cubic-inch overhead valve engine, to reduce the run-on which sometimes results from the use of low octane, low lead fuels in high performance engines.
A GT-6 convenience feature is the wide opening, counter-balanced, rear door-window combination which gives easy access to the car's large luggage area. An electrical defroster grid is fused into the window glass and is standard equipment.
Price of the 1973 Triumph GT-6 Mk 3 is $3,765 at ports of entry. Options include overdrive and a complete range of competition equipment for SCCA road racing is available from British Leyland.
TRIUMPH SPECIFICATIONS - Februar 1973
MODELL GT-6 III
YEAR 1973
COMMENCING SERIAL KF20001 U
ENGINE CODE Family TB
NO. OF CYL. 6
BHP SAE 79 @ 4900 RPM
COMP. RATIO 8.0:1
CAPACITY 122 cu/in. 1998 cc
BORE 2.94"
STROKE 2.992"
CLEARENCE INLET .010 Cold
CLEARENCE EXHAUST .010 Cold
CARB. TYPE 2-1.5 Zenith CDSE
SPARK PLUGS & GAP N12Y .025"
DIST. POINT GAP .015"
DWELL 40°-42°
FIRING ORDER 1-5-3-6-2-4
IGNITION STATIC 6° BTDC
IGNITION DYNAMIC 4° ATDC @ 800 RPM
IDLE RPM 800 - 850 RPM
A.F. RATIO & CO 0.5 - 2.5%
ELECTRICAL SYSTEM 12 Volt Negative
BATTERY CAPACITY 56 Amp
ALTERNATOR TYPE/OUTPUT Lucas 15ACR/28AMP
REAR AXLE RATIO 3,27:1 OR 3,89:1
TIRE/WHEEL SIZE 155 SR 13, 4 1/2" J Rim
PRESSURES NORMAL 24 lb/in F, 30 lb/in R
PRESSURES FULL LOAD 24 lb/in F, 30 lb/in R
FRONT TOE IN 1/16" - 1/8" in
REAR TOE IN 0 +- 1/32"
CASTOR 3 1/2°
CAMBER 2 3/4 Pos.
K.P.I. 6°
CAPACITIES:
COOLANT 13.2 pts.
ENGINE OIL 9.6 pts.
TRANSMISSION STD. 1.8 pts. - 3 pts. With Overdrive
TRANSMISSION AUTO. -----
REAR AXLE 1.2 pts.
GASOLINE 11.7 US Gals.
OKTANE 91 Oct. Minimum - Regular
WEIGHT 2020
WHEEL BASE 6'11"
TRACK FRONT 4'1"
TRACK REAR 4'11"
ADDITIONAL INFORMATION
Anti Run-On Valve stops fuel and vapor flow from
carburetor float chamber when ignition is switched off.
..."
mfG
Harry
PS. Schon toll wie BL das Weglassen der Rotoflex als Verbesserung darstellt.
