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The all new ribbed main body dissipates heat more effectively and the venturi shaped funnel creates a sharp dynamic sound. Venturi Drive dump valves also feature "Dual Drive" for maximum response, a small port for low boost and a larger port for high boost.
The main purpose of the dump valves is to improve the response of the turbo by quickly releasing the boost pressure before the turbo stalls. They are made from die cast polished or coated aluminium with a brass piston and a rubber diaphragm, meaning they can easily cope with boost pressures up to 2.0 bar with the supplied spring.
They are also tension adjustable.
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Evo 9 SWB is competing in the UK Time Attack series for 2019, Keep
an eye on our social media for updates and the Norris Designs
YouTube channel for in car videos.
Version 3 supercharger kits proving themselves out there all around
the world! Zero lag!
Version 4 dry sump kits in stock and ready to ship. Featuring the
SUPERB Auto Verdi oil pump.
Colt Ralliart is competing th CCRC Saloons Championship again in
2019. Going great so far!
Designs are the UK agent for Bullet engine blocks. We stock 4G63
& 4G64 versions. As used in our Evo 9 SWB demo car.