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Astra H VXR Stage 4 K06 Coversion

Another fabulous conversion on an Astra H VXR.

This car first came to us for mapping to Stage 3 (hardware requirements are a full 3″ exhaust system and uprated intercooler). The car was fitted with a Forge lower front mount intercooler, but on the exhaust side only had a pre-cat removal pipe, and a Piper 3″ cat back exhaust system and was still running the factory main cat section. Obviously with this restriction in place it would be down on expected power, and upon checking on the rolling road this was found to be the case, but still making a respectable 283bhp.

Remedial action was simple; fit a 3″ front pipe and sports cat section. Once the mapping was finalised the results were a very good 299.99bhp and 332 lb ft torque on a cold January day.

In the hunt for more power, the car returned to us recently for a full K06 and inlet manifold upgrade.

ZRP steel rods and uprated ARP rod bolts were fitted, stem seals and retainers were done at the same time, and then when being put back together the K06 turbocharger, Courtenay Turbosmart uprated actuator, Courtenay Klasen high flow inlert manifold,thermal inlet gasket and high flow 340 fuel pump were all fitted. This was also the ideal opportunity to replace the cambelt and water pump and fit a lightweight allow bottom pulley.

Z20LEH engine being fitted with steel rods

Z20LEH engine being fitted with steel rods

An uprated CSRacing clutch kit and lightweight billet steel flywheel were also fitted, as a safeguard against the increase in power and torque, and to top it off a huge K Sport 8 Pot 356mm brake kit was also fitted, to bring everything safely to a halt. The car already had a Wavetrac LSD in the gearbox.

Rolling Road Mapping

Rolling Road Mapping

The end results after mapping 333bhp and 350 lb ft torque.

Astra H VXR – K06 Mapping

This Astra H VXR Nürburgring is a well loved and enjoyed example having covered some 110,000 miles, but it always gets regular 5,000 mile oil changes. It shows the durability of the engines as this car has been tuned to several levels, originally starting at Stage 3.

More recently it has benefitted from the addition of a K06 hybrid turbo and Courtenay Klasen Inlet manifold, a set of steel rods and with mapping and set up is currently making 316 bhp on the 70mm Remus exhaust system.

It is due back soon for a full 76mm exhaust system to release the additional power available from the fitted components, which is being held back by the Remus system.

Excellent results showing that mileage is not detrimental to the Z20LEH engine making good power, providing regular maintenacne is carried out.

Astra H VXR Mapping

Astra H VXR Mapping

Zafira GSi Turbo CLutch and Flywheel Replacement

A tuned Zafira GSi in our workshop for an uprated fast road clutch and lightweight billet steel flywheel assembly.

To cope with the higher power and torque figures, we have fitted this Zafria with an uprated clutch, and at the same time replaced the rear mail oil seal (behind the flywheel) and fitted a new Sachs hydraulic slave cylinder.

At the same time it has also benefitted from the addition of a lightweight flywheel which improves the engine’s willingness to rev and makes for faster acceleration through the gears. An upgrade well worth carrying out with clutch replacement.

Not only can we supply and fit but we can also send parts out mail order by courier for anyone unable to get to us.

Zafira GSi Clutch and Flywheel Replacement

Zafira GSi Clutch and Flywheel Replacement

Astra J VXR Stage 2

Astra J VXR’s are becoming more and more popular for tuning now and here is another example. White seems to be a popular choice on this model.

This car was brought to us for a Stage 2 Tuning package which consists of a replacement 76mm downpipe to remove the restrictive pre-cat, a revised silicone inlet hose with a free flowing replacement air flow meter housing and large AEM DryFlow air filter assembly followed by custom ecu remapping, datalogging and full rolling road set up.

This car acheived 334bhp and 385 lb ft torque.

Astra J VXR Stage 3

Another Astra J VXR in for mapping, fitted with all the right components for Stage 3; Full 3″ Turbo Back Exhaust with pre-cat removal, CSRacing Intercooler, enlarged inlet hose, Induction Kit.

Astra J VXR Mapping

Astra J VXR Mapping

 

Astra J VXR Engine Bay

Astra J VXR Engine Bay

Astra J VXR Day

Returning after the Christmas and New Year break to work on more Astra J VXRs.

Mapping on a Cold Day – K06 at 349bhp

This Astra H VXR has been with us before for mapping and has a K06 turbo, full 3″ exhaust, Courtenay Klasen inlet manifold, CSRacing intercooler, steel rods (plus all the other required components) and achieved a very respectable 329bhp and 350 lb ft torque when last seen in the July heat this year.

Astra H VXR K06 Conversion

Astra H VXR K06 Conversion

Previously running a standard actuator, the car came back to us for checking and additional mapping after a Courtenay Turbosmart uprated actuator and recirculation valve had been fitted. We were able to have some further changes made to the boost, fuelling and ignition timing after the replacement actuator had been fitted, but the biggest change was the colder November temperature, meaning the dyno cell was lovely and chilled.

Final mapping saw a recorded power figure of 349bhp and 370 lb ft torque with more boost through the mid range helped by the stronger actuator. It goes without saying that the car was running Shell V Power 99RON fuel.

K06 Graph

K06 Graph

We still quote expected gains for this conversion at 330-335bhp, becuase we see and map more cars during the hotter months, but it only goes to prove how much turbocharged cars love cold dense air!

VW Scirocco R Mapping

Another VW brought in to us for mapping recenlty was this Scirocco R with the 2.0 Turbocharged EA113 engine (also used in VW Golf Mk5), which in standard trim is quoted at 261bhp and 258 lb ft torque.

The car was already fitted with a full 3″ exhaust system, upgraded air inlet pipework and RamAir foam filter and a Loba 2.0TFSI uprated high pressure fuel pump. After mapping and rolling road set up the end results were a shade over 350bhp and 326 lb ft torque.

VW Scirocco R Mapping

VW Scirocco R Mapping

Lotus Europa Mapping

The Lotus Europa is fitted with a Z20LER engine, as used in the Astra H 2.0 Turbo (Non VXR) and has the M32 6 speed gearbox.

This particular car had been fitted with a VXR turbocharger, VXR injectors (both from the Z20LEH sister engine used in the Astra H VXR) and a Milltek exhaust and came in for ECU remapping and rolling road set up. To prevent clutch issues is also had an the uprated 240mm clutch and lightweight 240mm flywheel also used on Astra H VXR as an upgrade.

Astra J VXR Development

This summer has seen a substantial increase in tuning demand for the A20NFT engine. This combined with the ECU’s use in the new Corsa E VXR has seen us spending many hours on the dyno looking at data with Stephan getting his teeth firmly into the intricacies, oddities, protocol and hidden depths of the Delco ECU required for example in bigger airflow and turbo applications.

With Stephan visiting us this week we took the opportunity carry out some further testing work on our own  Astra J VXR, already fitted with our Courtenay Sport Racing intercooler and full turbo back 3″ (76mm) twin silenced exhaust system. A lot of time was spent with the car on the rolling road and further updates were made to the software. One of the objectives this week was to further test and calibrate our soon to be released induction kit in order to to fully understand where the best gains are made. To do this a number of filter and air mass housing combinations were tested before finally settling on our preferred design for the A20NFT engine.

Corsa E VXR Development

We are pleased to announce that the tuning program for the Corsa E VXR has begun.

Stephan Klasen (our mapping engineer) has purchased a Corsa E VXR in ‘Shiny Rock’ Grey for a whole host of development work to compliment further existing on-going development on our own Astra J VXR, as the Corsa E shares the same GM – Delphi ECU with the Astra J VXR.

So far we have completed Stage 1 which is just a bespoke ecu remap to the standard car with full rolling road set up and optimisation and Stage 1.5 which has the addition of a front pipe complimented by the bespoke ecu remap.

The car had a number of runs to bench mark its base power as delivered from Opel. With the engine fresh out of the box and with less than 100 kilometres on the clock the standard power was recorded at 203 bhp and 208 lbs ft of torque. Following Stage 1 remapping the power increased to 223 bhp with 237 lbs ft of torque. As you can see from the graphs below this power and torque increase is across the whole of the rev range right up to the standard rev limiter.

A change of front pipe and the car was put back on the dyno. Following a good amount of recalibration and load testing runs the power further increased to 237 bhp and 238 lbs ft of torque. At this time Stephan wants to keep the toque at this level for the safety of the pistons. You can see from the Stage 1.5 graphs the rev limit has also been increased to complement its improved breathing and this the shift light function has also been lifted.

A full exhaust system has now been fitted to the car and mapping work for this will continue as soon as the car arrives back from KW who are currently using the car for suspension development; Watch this space……..

Click on the gallery images below to enlarge:

Astra H VXR Track Car Mapping

This track prepared (and more importantly track used) Astra H VXR came in for mapping to give it a performance improvement in the short term to compliment the other modifications which have been specifically aimed at making a good useable trackday car.

Lightweight Team Dynamics 18″ alloy wheels help with unsprung weight and improve acceleration and turn in and also allow the 356mm 8 pot K Sport brake kit to sit neatly behind. DAP springs and a Whiteline rear anti-roll bar are the current chassis upgrades. A full exhaust system has also been fitted to help with improving flow and compliment the ecu remap.

Turning to the interior, a rear half cage has been bolted in to enhance the structural rigidity of the body, which also improves the handling and offer the obvious safety benefits, the interior has been partially stripped to reduce weight, the heavy factory front seats have been replaced with Recaro Pole Positions, a massive weight saving and also allowing the use of front seat harnesses.

Astra H VXR Trackday Car Being Mapped

Astra H VXR Trackday Car Being Mapped

Astra H 2.0 Turbo Mapping

We recently remapped this Astra H SRi 2.0 Turbo model. The 3 door model with the Z20LEL engine leaves the factory with 170PS and was booked in for a repalcement 70mm pre-cat removal pipe, a high flow panel filter, ECU remapping and full rollinh road set up.

Once on the rolling road after an initial inspection and run up a split factory recirculation valve was diagnosed which was causing a loss of boost, and if left can lead to turbo failure. This was replaced with one of our Courtenay TurboSmart uprated recirculation valves which are a much stronger and better made unit removing the rubber insert of the OE unit that tears causing the failure of the OE valve.

After full datalogging, bespoke mapping and optimisation the car produced a very respectable 224 bhp and 255 lb ft of torque, an excellent result from a 96,000 mile engine. The torque was been kept nice a smooth from 2,700 rpm – 5,000rpm without a peak mid range torque spike which can lead to  problems for the factory clutches causing them to slip.

Astra SRi 2.0 Turbo 3 Door

Astra SRi 2.0 Turbo 3 Door

K Sport Caliper Colours

Whilst K Sport calipers can be painted any colour from the factory, providing a recognised colour code is supplied, there are a selection of ‘default’ colours to chose from:

K Sport Caliper Colors

K Sport Caliper Colors

Routine Maintenance Service

Routine Maintenance for this lovely clean Golf GTi. In our workshop today for its annual maintenance service, including brake fluid change.

VW Golf GTi Service

VW Golf GTi Service

VIDEO STORY: Brit-Built Astra Flies The Flag For Great Britain

Ellesmere Port, 23rd September 2015 – Vauxhall has revealed how they built the Astra Union Jack flag through a film launched today.

Vauxhall Astra Union Jack

Vauxhall Astra Union Jack

To celebrate the launch of the all-new seventh generation Vauxhall Astra, workers at the Ellesmere Port manufacturing plant – home of the Astra for over 36 years – choreographed 128 new models to create the image of the Union Jack flag. Construction of the display was captured using a state-of-the-art drone giving a birds-eye view of the build.

Watch the footage of the Astra Union Jack film below or on YouTube https://youtu.be/aghmE8S8ln4.

Commenting on the launch at Ellesmere Port, Business Minister Anna Soubry said: “This is a proud day for Vauxhall and its workforce at Ellesmere Port. Manufacturing the seventh generation Astra onsite secures 2,000 jobs into the next decade, boosts productivity and further demonstrates the company’s ongoing commitment to the UK.”

Vauxhall’s seventh generation Astra is the eleventh major model-line to be built at Ellesmere Port and guarantees 2,000 jobs at the Cheshire plant over the next decade.  The plant secured a long-term contract in 2012 and a £140 million investment which further demonstrates the brand’s continued commitment to manufacturing the iconic car in Britain.

The image, orchestrated in under 24-hours, pays tribute to over 36 years of manufacturing the Brit-built best-seller, which has seen over five million cars roll off the Ellesmere Port production line. Three million have been sold in the UK alone – with 50,000 in the past 12 months and 2 million exported to 25 European markets. It is estimated that at full production in 2016, the plant will build approximately 680 Astras per day with further growth in subsequent years.

The British success story extends beyond the Astra itself – as for over 50 years, Ellesmere Port has been the manufacturing home of every compact class Vauxhall in the UK. With nearly 25 per cent of parts sourced locally from UK suppliers, the plant is a significant contributor the local economy and the continued investment at the facility is set to boost UK manufacturing, utilities, construction, transportation and storage companies by at least £70 million.

New Brit-built Vauxhall Astra – In Numbers:

  • One in four Britons has either owned or driven an Astra
  • 25% of a Vauxhall Astra is produced from British sourced materials
  • It takes approximately 24 hours to build an Astra, from sheet steel to the finished article – this is expected to reduce to just 22 hours as production grows
  • 3 million Astras have been sold over the past 36 years – 50,000 in the past 12 months
  • 5 million vehicles have been manufactured at Ellesmere Port, with 2 million exported to 25 European markets
  • £140m investment in the Ellesmere Port factory
  • The Ellesmere Port plant will build approximately 680 cars per day and 120,000 per year

The all-new Astra is in Vauxhall showrooms from October, priced from £15,295 on the road.

Enlarged Silicone inlet Hose for Astra J VXR

Enlarged Silicone Inlet Hose for Astra J GTC VXR.

A direct replacement for the factory inlet hose, this silicone hose has been enlarged throughout its length for improved air flow, tapering only at the end to fit onto the turbo. This hose is smoothed out removing all the steps and convolutes found in the factory hose. It also features a moulded spigot for the breather pipe.

£119.95 Available in Blue, Red or Black or Yellow, Green, Purple or Orange to Special Order.

Astra J Inlet Hose

Astra J Inlet Hose

K03 Hybrid Turbo 1.6

We have recently carried out some development work using a K03 Hybrid Turbo for the Corsa D 1.6 Turbo engine; Z16LEx/A16LEx/B16LEx

Featuring a reworked compressor wheel and shaft, an uprated bearing pack and a modified inlet elbow, we tested the unit on a Corsa 1.6 Turbo on which we had previously carried out a full engine rebuild with low compression pistons and steel rods. The car was also complemented by a full 76mm exhaust system and CSRacing Intercooler and achieved 258bhp once remapped and set up on our rolling road.

Price: £1140 inc VAT based on rework to a brand new core unit including a reworked inlet elbow.

K03 Hybird 1.6 Turbo

K03 Hybird 1.6 Turbo

K03 Hybrid 1.6 Turbo and Inlet Elbow

K03 Hybrid 1.6 Turbo and Inlet Elbow

Another Astra G Garrett Conversion

Brought in for a bottom end refresh with new bearings, crankshaft polish and mapping this conversion has a 3″ full exhaust, CSRacing full height front mounted intecooler, forged pistons, steel rods, external swirl pot and high pressure fuel pump set up and a Garrett GT3076R and TiAL external wastegate and hit 500bhp after mapping and rolling road set up. The Revolution Millennium wheels with Nankang NS-2R tyres finish the car off, and the power makes the K Sport 330mm 8 pot calipers work hard backed up by suspension from Weitec by KW and a full roll cage further stiffens the chasssis.

It now boasts Methanol injection and has been mapped to 540bhp and was the Class B winning car at Thunder Road 2015.

Astra G Garrett Conversion

Astra G Garrett Conversion

Courtenay Trio Excells at Thunder Road

For the third year in a row Courtenay Sport powered cars have come away victorious from Thunder Road, which this year was held on Saturday 8th August at the former RAF Woodbridge airbase.

The Thunder Road event is aimed at Performance VAUXHALL road going cars including all VXR models and is only open to road legal, taxed, tested and insured road vehicles. The competition comprises of 5 x 1 Mile Speed runs along the the 2 mile runway with the highest Terminal Speed at the 1 mile mark to count.

Congratulations to Andy Carr and Ben Gibson, who took first and second place in Class B for cars between 1601-2000cc and Tim Crane who won Class B for cars up to 1600cc. All three cars have been mapped by Courtenay Sport.

Andy driving his Courtenay Sport mapped Garrett equipped (GTx3076R) Astra G GSi 2.0 Turbo achieved a top speed of 173.86mph to win the class, beating the 2014 winning time for Class B.

Ben’s Courtenay Sport mapped Zafira B VXR with Garrett GT2871HTA turbo took second place at an extremely respectable top speed of 160.26mph; not bad for a 7 seat bus!

2015 was the third year that a Courtenay Sport car has won Class B. 2014 saw Rob Dennis run his Courtenay Sport mapped Garrett Turbo quipped Astra G across the line at 171.59mph, and 2013 the outright Class B winner was Wayne Townsend’s Courtenay Sport Astra H VXR.

Tim Crane was the winner of Class A, for vehicles up to 1600cc. His Stage 4 Corsa D VXR Sprint crossed the timing line at 138.73mph.

To show what an achievement Andy’s ‘almost’ 174mph top speed actually was, he would have also won Class C (2001-2800cc) and Class D (2801cc and above). It would have also placed the Astra in 4th place in Class E (for cars above 2800cc Turbo or Supercharged).

Overall 173.86mph placed Andy 4th overall (only loosing out to a couple of Monaros and a VXR8!), and Ben’s 160.26mph saw him 12th overall.

Thunder Road 2015

Thunder Road 2015 Andy Carr’s Astra GSi

Thunder Road 2015

Thunder Road 2015 Class B Winner

Thunder Road 2015

Thunder Road 2015 Class B Winner

Thunder Road 2015

Thunder Road 2015 Ben Gibson’s Zafira VXR

Thunder Road 2015

Thunder Road 2015 Tim Crane’s Corsa VXR

Thunder Road 2015

Thunder Road 2015 Ben’s Trophy and Engine

The Courtenay Sport Blog

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