Bamford Rose Phase 1 V12 Engine Upgrade
Phase One of Bamford Roses’ V12 Engine Upgrade comprises of a primary catalyst delete (from the OEM exhaust manifolds) and the Bamford Rose secondary catalyst upgrade. Additionally a three-position switch for manual control of exhaust bypass valves (fully open, standard automatic or fully closed for those early morning starts).
Our secondary catalysts are more efficient and gas flow optimised with high quality 200 cell bricks for better performance. The catalysts are offered both baffled and unbaffled catalysts so you can tune your V12s exhaust note to taste.
At Bamford Rose, the upgrade of the catalysts is not simply a bolt-on job. As well as fitting the catalysts, the engine ECU is also revised and the spark strategy mapping altered appropriately. The alteration takes account of the different gas flow characteristics from the 200 cell free-flow catalysts (compared to the factory OEM 900/400 cell catalysts) optimising performance by running the 200 cell catalysts at the correct temperature.
The change in engine management software to BOSCH for the later Generation II V12s proved to be particularly changing for this upgrade. We wanted to be sure that the engine diagnostics were correctly recalibrated (as we do for engines with the earlier management system) to ensure that no false emissions warnings are raised as a result of these changes in the gas flow characteristics.
Most aftermarket tuning companies tackling the Bosch ECU will simply buy the flashing hardware from a supplier and then look to a generic ‘tuner’ for a software file to reprogram the ECU. As former powertrain calibration engineers, we shudder at the thought of taking an unknown file and flashing it to a car. This “fix” prevents ‘solution-writing’ for any potential issues down the line, with the customer told to ‘live with it’ if any warning lights occur.
For that reason, it has taken time for Bamford Rose to come to market with upgrades for Bosch ECU cars. Through painstaking reverse engineering of the BOSCH system and decoding of files uploaded from many Bosch cars, we now have complete control of all data within the Bosch ECU and can now be sure that our upgrades are properly integrated with the BOSCH management system.
This cost-effective package significantly improves engine responsiveness and delivers a benefit of c+40BHP / c+30 Nm to your V12 engine. The package also has the secondary benefit of insuring against the expensive risk of primary catalyst ingestion into the V12 (see our V12 service page for further details).
This package is suitable for all Generation II V12’s for £2,250 (excluding VAT).