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| Courtenay Sport are pleased to be able to offer Diesel Vehicle Tuning Upgrades for a wide range of Vauxhall diesel engines. Due to the increasing popularity of diesel engined vehicles we have developed a range of software upgrades to enhance their performance and economy. Using specially developed software, these tuning upgrades are actually FULL remaps of your vehicle's engine management system to improve the performance characteristics throughout the vehicle's rev range, offering better driveability, more power and torque throughout the rev range and a reduction in fuel consumption, another added benefit. There is no need to open up an ECU as our remapped software in installed via your car's engine diagnostic port and is totally invisible to engine diagnostics, ideal for any vehicle and in particular company car and van drivers wanting increased performance. Our Diesel Tuning Upgrades cost from just £510 fully installed including a rolling road check and are fully reversable at any time. Courtenay Bespoke Diesel Remaps are available for the following vehicles: |
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| Corsa C 1.3 CDTi Astra H 1.9 CDTi 8v (120 PS) - Typical Gains to 155 - 160 bhp and up to 270 lb/ft 16v (120 PS) - Typical Gains to 180 - 185 bhp and up to 320 - 335 lb/ft 16v (150 PS) - Typical Gains to 180 - 185 bhp and up to 320 - 335 lb/ft Insignia 2.0 CDTi (160PS) - Typical Gains up to +30bhp, and up to +60 lb ft Vectra C/Signum 1.9 CDTi 8v 120PS - Typical Gains up to 150 bhp and 270 lb ft 16v 150PS - Typical Gains up to 180 - 185 bhp and 300 lb ft |
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| We cover a wide range of models, with more being added all the time. Should your vehicle not be listed then please do not hesiate to contact us for availability. Courtenay Superchips Remaps for Diesel Engines from £510 including rolling road time, include models where we do not have our own bespoke software. Click Here for Superchips Diesel Application List Search to see if your vehicle is listed. |
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Power and Torque Graph - Courtenay Diesel Remap - Astra H 1.9 CDTi 16v (150PS).
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Courtenay Sport Diesel Remap power and torque graph for the Astra H 1.9 CDTi 150PS (Z19DTH 16v engine) showing before and after graphs. Also applicable to Zafira 1.9 CDTi 16v (150PS). The Astra/Zafira 1.9 CDTi 16v (120PS) engine will also achieve similar gains after an ecu remap. Red - Before Blue - After Results for this particular car: Power - 186 bhp Torque - 325 lb ft Click Image to Enlarge. |
Power and Torque Graph - Courtenay Diesel Remap - Astra H 1.9 CDTi 8v (120PS).
| Courtenay Sport Diesel Remap power and torque graph for the Astra H 1.9 CDTi 8v (120PS Z19DT 8v engine) showing before and after graphs. Red - After Results for this particular car: Power - 157 bhp Torque - 292 lb ft Click Image to Enlarge. |
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Diesel Tuning Boxes.........
| So why don't we use boxes? Put simply all a tuning box does is increase the fuel pressure to the engine, so completely different to a remap which changes many parameters within the ecu. Your car's ecu does not know if a box has been fitted or not. Yes boxes do give good power and torque, which can be shown on a rolling road but by increasing the fuel pressure the ecu loses its safety margins, because the ecu does not know the fuel pressure has been increased. A diesel engine which runs excessive fuel (due to an big increase in fuel pressure) will lead to higher cylinder head and exhaust gas temperatures, which can ultimately cause damage internally. The reason for this is because the ecu does not know the fuel pressure has been increased with the box, and it has no way of defending against the higher temperatures. A remap on the other hand, because it is an integral part of the ecu, means that if due to outside factors (e.g. high ambient air temperature, towing) the cylinder head/exhaust gas temperatures do rise, it can reduce the fuelling to be able to combat them for safety. The safety margins are still available with an ecu remap; they aren't there with a tuning box. |
Power and Torque Graph - Diesel Tuning Box - Astra H 1.9 CDTi (150PS).
| Diesel Tuning box power and torque graph for the Astra H 1.9 CDTi 150PS (Z19DTH engine). Note from the graph how unstable the power and torque curves are between 2,000 - 3,000 rpm due the the fact the box just ramps up the fuel pressure, when compared with a remapped ecu. Click Image to Enlarge. |
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Uprated Intercooler Kit - Astra H 1.9 CDTi
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Enlarged uprated intercooler kit for the Astra H 1.9 CDTi.
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Power and Torque Graph - Astra H 1.9 CDTi 16v (150PS) - Courtenay Diesel Remap and Intercooler.
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Courtenay Sport Diesel Remap on a 150PS Astra H also fitted with our uprated performance intercooler kit and exhaust. Power and torque graph for the Astra H 1.9 CDTi 150PS (Z19DTH 16v engine) showing before and after graphs. Green - Before Blue - After Results for this particular car: Power - 198 bhp Torque - 371 lb ft Click Image to Enlarge. |
Intercooler Fitted
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Exhaust System - Astra H 1.9CDTi - Hatch and Van
| Milltek Stainless Steel Exhaust System. Turbo back full stainless steel exhaust system comprising of Large Bore Downpipe, Front Pipe with High Flow Catalyst Assembly, Centre Connecting Pipe, Link Pipe and Rear Section including tailbox. 63.5mm Diameter. Hatch - Price £1040.00  Van - Price £1115.00 |
Hybrid Turbo for 1.9 CDTi 16v
| Hybrid Turbocharger for 1.9 CDTi. Price £595 On Exchange |
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Stage 3 Power and Torque Graphs
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| Power and Torque Graphs comparing a Standard Z19DTH Car to a Stage 3 car fitted with Intercooler, Full Exhaust and Hybrid Turbo (Left) and a Standard Car to a remapped car to a Stage 3 car fitted with Intercooler, Full Exhaust and Hybrid Turbo (Right). In the case of the Stage 3 car, this is the maximum that can be achieved as the factory fuel pump and injectors are working flat out. |
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Courtenay Sport Panel Filter
| Our high flow, high efficiency air filter uses a special foam which gives better airflow than even the most popular cotton gauze aftermarket filters. Our filters offer the very highest level of dirt retention and protection (Of course! After all we're engine builders!) and you can clean it and reuse it just like most other performance filters. Supplied pre-oiled for first use. Filter oil is available separately for subsequent re-oiling after cleaning. Available for most diesel applications. Price £34.95 Filter Oil £4.05 |
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Astra 1.9 CDTi Silicone Engine Hoses
| We have released Silicone Engine Hoses for Astra 1.9 CDTi Diesel engines. 3 Ply Silicone Hoses with Fluoro lining for added durability and resistance to oil contamination. Will brighten up any engine bay. Priced at £90.95 |
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Replacement Dual Mass Flywheel and Clutch
| We can supply replacement Genuine OE GM/Vauxhall dual mass flywheels and Genuine clutches. Z19DTH DMF to Eng 17361103 - £295 Z19DTH DMF from Eng 17361104 - £335 Z19DTH Clutch to Eng 17361103 £150.00 Z19DTH Clutch from Eng 17361104 £159.00 |
27 Years of Vauxhall Tuning
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