As many of you will know we have been flat out this year with a huge range of upgrades and projects, not least our new workshop facilities!
Behind the scenes our GTR engine development over the last 12 months has been focused on allowing the engine to breathe more easily both on the inlet and exhaust side. We have produced a complete range of engineered solutions that will transform the engine’s performance and we’ll be releasing full details shortly.
The first of these exciting new products is our new high flow GTR throttle bodies.
We have been working closely with specialist throttle body manufacturer AT Power to create an upgrade that will not just benefit big power builds but will improve the performance and appearance of all GTR engines. AT Power are renowned for their quality engineering and are suppliers of throttle bodies for McLaren and Toyota Motorsport to name a few.
The project itself started many years ago, we even showed prototypes on our Autosport stand back in 2012. We quickly realised, however, just how complicated the throttle control system was when using the standard ECU and development was put on hold. Recently with improved software control from Ecutek and the demands of some of our 1,000bhp builds we began to revisit the project.
The throttle bodies have now been re-engineered to be a simpler ‘plug and play’ replacement for the original, using the OEM pick-up points, mountings and motor. By removing the original motor and internals we were also able to significantly reduce the price. We will continue to look at ways to integrate new motors in the future for larger diameter versions but these will require a lot of additional testing to ensure they are as durable and glitch free as the OEM system.
The throttle bodies are machined from solid billets of aerospace grade aluminium (6082 & 7075) and feature stainless steel blades and fixings throughout.
The AT Power bodies also feature several unique features that set them apart from other units in the market place. For example their ‘shaftless’ stainless steel throttle blade minimises airflow disturbance for maximum power and is lighter for lower inertia. AT Power have measured an almost non-existent 1 CFM drop in flow between their design with the ‘shaftless’ blade fully open and no blade fitted at all!
The new throttle bodies feature a 72mm bore that offers massive 44% larger surface area over the original 60mm bore and this figure excludes the restriction of the large OEM shaft!
The complete Litchfield throttle body kit retails at £999+vat for the pair and in our view represents excellent value for such beautifully engineered components. They can be specified as part of any bespoke Litchfield conversion.
We will shortly release full back to back comparisons on our existing performance packages using our soon to be unveiled, state of the art, engine dyno and oem standard rolling road facilities
If you have any questions just let us know