Everything you wanted to know about 504s but were afraid to ask

Yeah!!!With the four brake disks, the all-independent suspension and so on!!

Technical data and some mechanical particularities.

This table is brief and very basic but will be progressively improved.The power is in [din HP], the torque in [din Kg.m], the speed in [Km/h] and the bore and stroke in [mm].

type year engine capacity BoreXstroke m.power@rpm m.torque@rpm m.speed
carburettor 1968 XM 1796 84X81 82@5500 13.4@3000 156
injection 1968 KF6 1796 84X81 97@5600 13.7@3000 168
coupé/ cabriolet 1969 KF6 1796 84X81 100@5500 13.6@3000 175
GL 1971 XN1 1971 88X81 93@5200 16@3000 162
Break/ Familiale 1971 XN1 1971 88X81 93@5200 16.8@3000 160
TI 1972 XN2 1971 88X81 104@5200 16.7@3000 173
GL Diesel 1971 XD90 2112 90X83 65@4500 12.6@2000 135
Break D/ Fam D 1972 XD90 2112 90X83 65@4500 12.6@2000 126
L 1973 XM7 1796 84X81 79@5100 14.2@2500 154
Commerciale 1973 XM7 1796 84X81 73@5000 13.7@2500 146
L Diesel 1973 XD88 1946 88X83 56@4500 10.8@2000 133
Comm. D 1973 XD88 1946 88X83 56@4500 10.8@2000 117
V6 Cab./ Coupé 1974 ZM 2664 84X73 136@5750 20.6@3500 186
Break GL D/ Familiale D 1977 XD2 2304 94X83 70@4500 13.4@2000 130
Coupé V6 TI 1977 ZMJ 2664 88X73 144@5500 22.1@3200 189
GLD 1977 XD2 2304 94X83 70@4500 13.4@2000 143

This table is not complete yet.There are some models I have omitted because they are very similar to some shown on the table.Other ones (post-80) are basically L and LD models with minor modification (trim,...).Despite that, the table and other sections will be updated frequently.

type	year	engine	capacity	BoreXstroke	m.power@rpm	m.torque@rpm	m.speed
carburettor	1968	XM	1796	84X81	82@5500	13.4@3000	156
injection	1968	KF6	1796	84X81	97@5600	13.7@3000	168
coupé/ cabriolet	1969	KF6	1796	84X81	100@5500	13.6@3000	175
GL	1971	XN1	1971	88X81	93@5200	16@3000	162
Break/ Familiale	1971	XN1	1971	88X81	93@5200	16.8@3000	160
TI	1972	XN2	1971	88X81	104@5200	16.7@3000	173
GL Diesel	1971	XD90	2112	90X83	65@4500	12.6@2000	135
Break D/ Fam D	1972	XD90	2112	90X83	65@4500	12.6@2000	126
L	1973	XM7	1796	84X81	79@5100	14.2@2500	154
Commerciale	1973	XM7	1796	84X81	73@5000	13.7@2500	146
L Diesel	1973	XD88	1946	88X83	56@4500	10.8@2000	133
Comm. D	1973	XD88	1946	88X83	56@4500	10.8@2000	117
V6 Cab./ Coupé	1974	ZM	2664	84X73	136@5750	20.6@3500	186
Break GL D/ Familiale D	1977	XD2	2304	94X83	70@4500	13.4@2000	130
Coupé V6 TI	1977	ZMJ	2664	88X73	144@5500	22.1@3200	189
GLD	1977	XD2	2304	94X83	70@4500	13.4@2000	143

Some mechanical particularities

All the 4-cylinder injection models had not an electronic injection but an electro-mechanical one (Kugelfischer).This kind of injection allowed technicians and 'amateurs' to easily modify the injection parameters in order to obtain more power if the engine was boosted. The injection equipment in 'rallie' 504s was standard.

The first Diesel models with XD90 engine had a 'deferred injection system' that has not been used in any other car. This system (Peugeot-patented) made the engine sensibly quieter when it was idling.

Every pre-78 GL and GLD and all the injection types had disk brakes all-round.These disks had a diameter of 273 mm and were fitted in 14-inch wheels.After having been looking everywhere, I haven't found any other car (except, of course, 505 and 604, which were 504-based) with equal or bigger disks in 14-inch wheels.

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