What was the compression ratio of a 12 cylinder ignition system?
The 12 cylinder spark rate and abnormally high 12.5:1 compression ratio of the original HE demanded an ignition system capable of building up heavy coil primary current exceptionally quickly.
When did the Jaguar XJS go out of production?
This 1990 Jaguar XJS casts such a shadow. It alsoexudes a presence, albeit one that’s remarkably different from pretty much all other cars the Coventry-based company has produced before or since. That being said, the XJS was the marque’s longest-running model, with production stretching from 1976 to 1996.
What kind of compression does a V12 engine use?
Timing should then be set to higher speed figure approximating to the peak torque regime. V12 E type (CD carbs) 9:1 compression. Bosch Lucas EFI, 9:1 compression, 1975-80. Lucas 6CU EFI, pre-HE 10:1 compression, 1980-81.
Which is the correct timing for a V12 ignition?
Timing should then be set to higher speed figure approximating to the peak torque regime. V12 E type (CD carbs) 9:1 compression. 750 r.p.m. (static) 12 degrees BTDC 3500 r.p.m. 31 degrees BTDC Bosch Lucas EFI, 9:1 compression, 1975-80. 750 r.p.m. (static) 10 degrees BTDC 3000 r.p.m. 29 degrees BTDC Lucas 6CU EFI, pre-HE 10:1 compression, 1980-81.
What is the top speed of the XJS he V12?
With a maximum top speed of 149 mph (240 km/h), a curb weight of 3869 lbs (1755 kgs), the XJS HE V12 has a naturally-aspirated V 12 cylinder engine, Petrol motor.
How much does a 1983 Jaguar XJS he V12 weigh?
The 1983 Jaguar XJS HE V12 has 295 PS / 291 bhp / 217 kW. How much does a Jaguar XJS HE V12 weighs? What is the top speed of a Jaguar XJS HE V12?
What kind of engine does a Jaguar XJ12 have?
The simplest incarnation was in the carburettor fed E Type and XJ12 models, but the engine was designed for fuel injection from the start, and as soon as a suitable system was available it was fitted to the XJ12, the XJ-S was injected from the start.
What did I do when I opened the bonnet on my XJ-S V12?
The first time I opened the bonnet on my XJ-S V12 I just stared at it in disbelief for a few minuets, then gently shut the bonnet again and walked away.