Archive for ‘ February, 2015 ’

Bilstein B8 Dampers & DAP Race Spec Springs – Astra H VXR

For Sale – Courtenay Sport Premium Track Spec Suspension Kit for Astra H VXR.

This kit comprises of a set of Bilstein B8 Sports Dampers and a Set of DAP Race Spec Springs, which are 10% stiffer than the DAP Road spec springs. The front dampers are still built up ready to bolt straight on and were fitted with new top mounts, bearings and boots as shown in the pictures.

It has been fitted to our track day Astra H VXR, and drops approximately 10mm lower than the DAP Road spec springs and the rear springs are designed for reduced rear weight, such as cars without rear seats etc.

The kit is in excellent condition. The springs have been previously powder coated Anthracite. For condition see pictures below.

The front struts are already built up and were fitted with brand new genuine bearings and top mounts, so they are ready to bolt straight on. It has only covered about 2,000 miles in total, split approximately 50/50 between track and road use to shows and to and from Snetterton circuit!


The suspension kit:

And fitted:

Suspension Fitted

Suspension Fitted

And in use:

Astra VXR Track Spec Suspension

Astra VXR Track Spec Suspension

Astra H VXR – Uprated Clutch and Lightweight Flywheel

This Astra H VXR Nürburgring came to us for an uprated CSRacing clutch and lightweight billet steel flywheel, due to the fact the factory clutch had started to slip occasionlly.

The car had covered a shade over 91,000 miles and was originally modified to Stage 3 in 2008 at around 3,500 miles, virtually from new. So for nearly 7 years the car has been running at between 290-305bhp having had further changes made in later years, and the factory clutch and dual mass flywheel have given an exceptional service life considering the huge increase in power and torque to the car.

Replacing the original dual mass flywheel for a solid (single mass) lightweight billet steel one reduces the flywheel weight giving better acceleration due to the engine’s willingness to rev more freely as it is not having to rotate such a heavy mass. The CSRacing uprated clutch is a stronger unit, with an uprated cover with much more clamping pressure and an uprated sprung organic clutch disc to work with the single mass flywheel. The sprung disc is essential to fit if the dual mass flywheel is removed and replaced with a single mass item.

Also fitted at the same time was an uprated polyurethane gearbox mount insert as the original factory mount was starting to show signs of age related fatigue.

Astra H VXR Nürburgring Clutch and Flywheel Replacement

Astra H VXR Nürburgring Clutch and Flywheel Replacement

Don’t forget we can also fit standard original equipment (OE) replacement parts as well as uprated parts!

The Courtenay Sport Blog

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