Posts Tagged ‘garrett’
Last month’s Total Vauxhall saw a fantastic 8 page feature on Wayne’s 479bhp Courtenay modified Astra VXR. The spec and cover are a few posts down on our blog.
For those of you who missed it, here is the article in full. For those who didn’t relive it again!!
Just click on the image below to open up a pdf file of the original article (you will need a pdf reader installed to view).
Courtenay Sport Garrett Conversion. The brief was to achieve 420bhp with Garrett GT3071 turbo, tubular manifold, 76mm exhaust, 80mm air flow meter, 630cc injectors and Courtenay Sport Full Height Intercooler. The 80mm Astra VXR is maxxed out at around 420bhp so the achieved figure was the best achievable using the given components.
Klasen Motors 700bhp Speedster (VX220) Turbo.
Another big power turbo conversion using the new V Band Cast Manifold.
Astra VXR with V Band Cast Manifold, External Wastegate, Garrett GT3076 Turbo, Courtenay Sport Full Height VXR Intercooler, Courtenay Sport High FLow Inlet Manifold, Full 76mm Exhaust System, 90mm Air Flow Meter, Steel Road, Factory ECU (Bosch 7.6.3 management) bespoke mapped by Courtenay Sport
For this conversion using our new V Band Cast Manifold the brief from our customer was as close to 500bhp as possible but with usable power. We opted for a Garrett GT3076 turbocharger. The car also has our full height VXR intercooler, steel rods, Courtenay Sport High Flow Inlet Manifold and 76mm full exhaust system.
V Band Cast Manifold Astra VXR
V Band Cast Manifold with GT3076
And finally the all important Power Graph:
Astra VXR Power Graph
Following the introduction of our V Band Cast Manifold with external wastegate, here is an example of afinished conversions and graph on a VX220 Turbo.
The manifold has been flow tested to 600bhp and the Tial V Band flanges are much more secure and allow for easier turbo fitment.
V Band Cast Manifold fitted to VX220Turbo
V Band Cast Manifold fitted to VX220Turbo
The VX220Turbo with this V Band Garrett Conversion and GT2871 has also had a full engine rebuild and has had a full 3″ exhaust system and chargecooler system fitted, 80mm air flow meter, high flow injectors, uprated map sensor and uprated clutch and flywheel.
The build spec was for up to 400bhp, the final power output was 398bhp.
VX220 Turbo Power Graph
Courtenay Sport VX220 Turbo with a bespoke Garrett Build, strengthened rebuilt engine, Pro Alloy Chargecooler, full 3 inch exhaust system and full Z20LET engine management mapped by Courtenay Sport….. 360bhp