We have been sent this lovely looking Turbosmart recirculation valve to try for the KKK K04/K06 turbocharger, which we rather like the look of. Once we’ve had a chance to evaluate it fully we’ll report back. In the meantime please enjoy this stylish piece of automotive add-on
Category: Vauxhall Tuning
Poly Exhaust Mounts Now Available
Having now tested these exhaust mounts for fit, they have also undergone successful road and track testing and we are pleased to be able to offer them for sale. These uprated exhaust mounts are manufactured in a high temperature polyurethane material with a Shore A hardness of 67, compared to the original rubber mounts which […]
Corsa VXR Injectors
There is a lot of information and mis-information on the internet regarding Corsa VXR injectors. We thought we would give an insight into the situation and some facts. When mapping Corsa VXR, we can add injectors to Corsa VXR when mapping at any stage. The Corsa VXR injector is a 12 point multi hole injector. […]
Time Attack Set Up Check
We recently had the Courtenay Sport backked DCE Motorsport run Time Attack Astra VXR back for set-up check, after a spot of bad luck at the previous round at Donington Park. Some gravel ingress into the cambelt area caused severe damage to the engine, resulting in a last minute engine swap for the car, to […]
Time Attack Promo Video
Time Attack Promotional Video, filmed during the Oulton Park round and featuring the Courtenay Sport backed Astra VXR driven by Will Watson.
Big Brake Kits – Caliper Maintenance
Preventative Maintenance is always more cost effective in the long term as it prevents smaller issues from becoming more major problems. Take for example ‘Big Brake Kits’ which are now more commonly fitted on road cars and feature 4 pot, 6 pot and 8 pot calipers. These calipers are aluminium for lightness and strength. Usually […]
K06 and Inlet Manifold Upgrade
The K06 Upgrade for Astra H VXR is an often overlooked conversion in favour of either a Garrett or Borg Warner EFR turbo, where the thinking is ‘the bigger the better’. In a real world scenario, this is often not always the case, especially for fast road and trackday use where you want to retain […]
Turbo Failure – The Truth About Dirty Oil………
…… and how it will kill your turbo. All too often we hear of turbo failure of the K04 turbocharger, as used on the Z20LEx engines in Astra G and H, Zafira A and B, VX220 and all too frequently we hear the turbochargers being blamed as poor quality or ‘rubbish’ units, which is not […]
Gearbox Breather Tank – Astra H VXR M32
Gearbox Breather Tank for Astra H VXR/M32 Gearbox, also suitable for 1.9 CDTi Astra H, and equivalent Zafira models. This breather tank kit is designed specifically for track day/race use but can also be fitted to road cars. It allows for the gearbox to breathe when the oil gets hot and also allows an additional […]
Side Gearbox/Engine Mount Fitting – Astra G/H and Zafira A/B
Astra G/H 2.0 Petrol Turbo, Astra H 1.9 CDTi, Zafira A/B 2.0 Petrol Turbo and Zafira B 1.9 CDTi have a gearbox side mount that is rubber and prone to failure. Courtenay Sport approached Powerflex to devise a solution to not only improve the original factory mount, but also give it some additional support and […]
Rear Braided Brake Hose Fitting – Astra G/H and Zafira A/B
The factory/OE rear brake hose on these cars is a single piece with a rubber brake hose at each end and a solid metal joiner pipe which cannot be reused due to the way the rubber hoses are fitted into the metal pipe. Our braided rear brake hose kit comes complete with 4 braided hoses […]
Astra VXR GTx3076R Development…… 559bhp & Video
Further Development of this car has seen us change the turbo to a Garret GTx3076R along with a custom made 100mm diameter inlet pipe. Target BHP was something on the right side of 500 BHP. With 99 octane UK pump fuel we saw 525 BHP but this was on the limit of our UK fuel […]
Gearbox Side Engine Mount Poly Insert – Astra G Zafira A Z20LET 2.0 Turbo
The gearbox side engine mount (left had side mount) on Astra G/Zafira A 2.0 Turbo models is prone to failure caused by splitting, especially given the age of some of the rubber mounts. This polyurethane insert compliments our other uprated engine mounts and polyurethane inserts, and simply sleeves over the exiting factory OE side engine […]
Powerflex Black Series Poly Bushes
Powerflex Black Series range has been developed for ultimate performance, motorsport, track and race applications offering the most precise and accurate alignment for a wide range of chassis. Designed for the Track – Ready to Race – Engineered to be the best. Powerflex Black Series bushes are manufactured using a 95 Shore A compound to […]
Poly Gearbox/Side Mount – Astra H/Zafira 2.0T, VXR and CDTi
We identified a weakness in the gearbox mount (left had side mount) on Astra H VXR and CDTi models, whereby these are prone to failure caused by splitting. Additionally for fast road and trackday use the ability to strengthen this factory mount will reduce its movement. With Powerflex we have now produced an insert which […]
D2 Big Brake Kits
Designed to Perform The D2 Racing big brake kits are designed to cope with the heat generated by extreme braking on the road or track. Where as the standard braking system will quickly overheat and no longer perform the D2 Racing brake kits will dissipate this heat so keeping the braking system within its operating […]
Astra J VXR Stage 1 Remap
Courtenay Sport Stage 1 ECU Remap Exclusive Courtenay Sport Stage 1 Software Upgrade. Software customising whilst on our rolling road optimising fuelling, full boost and ignition maps, Full Power and Torque Graph Print Outs. Our Stage 1 upgrade gives much better low end response combined with a smother and flatter torque curve, whilst at the […]
Astra J VXR Panel Filters
Courtenay Sport High Flow Panel Filters are now available for the Astra J VXR. A high flow re-useable foam panel filter for improved air flow. £34.95 + P&P Available Online Now
Astra J VXR 76mm Exhaust System
The first pictures of our New Stainless Steel Sports Exhaust System for the Astra J VXR have been released and can be seen below. The exhaust system comprises of a full turbo back 76mm system, including sports cat. It has been trial fitted to the test vehicle and checked on our rolling road. The vehicle […]
Standard Astra GTC VXR Power Run
Courtenay Sport, as part of our development and testing, have run the new Astra GTC VXR on our Dynojet Rolling Road. This car is standard, and has been run as a benchmark. Mapping details will be released soon, along with full details of the 76mm performance exhaust system and intercooler. Standard Astra GTC VXR Power […]