How to increase the performance of a Jaguar V12 engine?
A brief guide to cost effective ways of increasing the performance of the Jaguar v12 engine 1 Replacing the Early Four Carburettors of the V12 E Type (or XJ12) with Electronic Fuel Injection. 2 Upgrading the Fuel Injection System. The Super Enhanced ECU Upgrade. 3 Upgrading the Induction System.
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 was the final version of the Jaguar V12 ignition system?
The final iteration of the V12 ignition saga happened after the change to 6 litres when the distributor was deleted in the and replaced with individual coils for each cylinder. Of these systems the most common is the Opus, and it is also the one with the most complicated vacuum advance system ever made. Its also very clever.
Why did the Jaguar V12 have hot re-start problems?
Early systems suffered from hot re-start problems due to having very small bore fuel rails which are prone to fuel vaporisation in the heat, the later larger bore system is a useful upgrade.
A brief guide to cost effective ways of increasing the performance of the Jaguar v12 engine 1 Replacing the Early Four Carburettors of the V12 E Type (or XJ12) with Electronic Fuel Injection. 2 Upgrading the Fuel Injection System. The Super Enhanced ECU Upgrade. 3 Upgrading the Induction System.
The final iteration of the V12 ignition saga happened after the change to 6 litres when the distributor was deleted in the and replaced with individual coils for each cylinder. Of these systems the most common is the Opus, and it is also the one with the most complicated vacuum advance system ever made. Its also very clever.
What are the systems in a Jaguar XJ12?
Breaking it down a bit, there are six main systems in that spaghetti; fuel, vacuum, engine management, ignition, cooling system and air con. I will take a typical S3 XJ12 as an example, then go over differences on other models later.
Early systems suffered from hot re-start problems due to having very small bore fuel rails which are prone to fuel vaporisation in the heat, the later larger bore system is a useful upgrade.