Performance Tuning - dreamscience - Increase BHP, Torque and POWER!

dsci ST Stage 4 Tuning Upgrade

Tune your Focus ST225 to dsci Stage 4!

350 Bhp and 385FtLb of torque....

The dsci ST Stage 4 Tuning Upgrade kit takes the Focus ST to a whole new level. Including all of our Stage 3 Modifications but also with the addition of a Turbo upgrade, an uprated Oil cooler and uprated RS Mk2 440cc multi hole injectors. Full fitting and individual setup of your vehicle is included in this amazing price. Also includes new down pipe bolts, gasket, turbo copper washer seals, and new turbo exhaust manifold gasket.

The dsci ST Stage 4 Tuning Upgrade kit includes:

dreamscience DS-AET-K06 Hybrid turbo upgrade – Dreamscience have worked closely with AET-Turbos over the last 12 months to co-develop a hybrid turbo upgrade for the Focus ST225 which develops great performance, reliability and value for money. We have incorporated a Forge actuator and Forge re-circulating dump valve to this turbo unit and have increased the size of the compressor wheel, plus the entire unit has been ported and polished to increase the overall efficiency of the unit. After intensive testing and many specification changes we have now signed off the DS-AET-K06 unit as below,

• K04/06 hybrid turbo
• 35Lb/min Billet compressor wheel with extended tip technology
• CNC re-profiled compressor cover
• Ported compressor cover inlet
• AET bespoke motorsport 6 pad thrust bearing assembly
• Total seal turbine piston ring seal for low back pressure exhaust systems
• Modified Seal plate to match hi-flow compressor wheel
• Cut back turbine exducer blades for better flow @ high RPM ranges
• Forge T2 actuator with blue spring
• Forge recirc valve with yellow spring
• Ported inlet manifold matched to manifold gasket
• Enlarged and ported wastegate
• Core assembly VSR balanced to motorsport specifications
• Fully blue printed to motorsport specs

Please note that this is a turbo exchange, we will retain your existing turbo.

Focus RS MK2 440cc multi hole injectors x 5 - These are the same Bosch injectors as found in the Focus RS MK2 and are a direct replacement for the standard 330cc Focus ST injectors. There is no need to re-calibrate your ecu to accept these injectors as all of our Dreamscience maps will run these injectors perfectly. These injectors are used as part of our stage 4 kit as from testing the standard injectors start to become inefficient at around 316Bhp +/- depending on temperature, commanded lambda, barometric pressure etc. These new injectors are a MUST for the new Stage 4 kit and also make a good addition to stage 1, 2 and 3 cars as you will notice an increase in performance in the mid range and at high rpm which is complimented with a smoother power delivery. (In all cases any injector bigger than 440cc will not run correctly and are unnecessary leading to ecu recalibration) At 350 real Bhp we still hold 11.5 to 1 AFR with the 440cc injector so any bigger is unnecessary and will not run as well.

Focus RS MK2 Oil cooler - The Focus ST225 from standard has a small oil cooler unit which is located just above the rear part of the sump. We are now offering an upgrade which is a direct replacement from the Focus RS MK2, this bigger oil cooler is very simple in design and easy to install while offering an improved ability to reduce oil temperatures for cars running big power or doing track days. This cooler is a mandatory piece of kit for the Stage 4 upgrade and a great option for all other stages. There are 2 variants of the standard oil cooler produced by the manufacturer so when ordering we will contact you to establish if your model need any modified pipes or not, the majority don’t.

Turbo X ECU remap - if you have a dsci Tuning Package or Stratagem Ultra then we will load the Turbo X map onto it, otherwise we will One Shot the tune onto your car during fitting. The Turbo X map has been developed to offer maximum performance while maintaining reliability and efficiency, as described by Performance Ford, “It’s designed to perform and feel as if it’s original factory fitment”. To use the Turbo X map it is mandatory to have the RS MK2 440cc injectors only, an uprated oil cooler, and the DS-AET-K06 Turbo upgrade, we have not tested this on any other variant and have no plans to. The Turbo X map power delivery is designed to keep climbing as you go through the rev range, thgere is no massive lump in the low to mid range followed by the disappointment of losing all your power and boost. This map holds above 300Ftlb from 2000 rpm to just above 6000 rpm and has a very progressive / flat torque curve. As can be seen by the dyno graph Turbo X is controlled at low rpm to help a sensible torque figure which ensures the drive train is kept safe and in tact and as the rpm climbs all hell breaks loose.

The biggest challenge when designing this new map over the last 12 months was to keep things sensible yet powerful. By using the 440cc injectors we are able to slightly over fuel the car to a steady commanded lambda of 11.5 to 1, this helps keep the cylinders cooler and also allows us to use more advanced ignition tables. The upgraded oil cooler was essential to help keep the temperatures down too as quite simply More Power = More Heat and this makes plenty of both.

dsci Induction Kit - Including a KN Air Filter plus our specially selected Samco hoses.

dsci Intercooler - Our custom dsci Intercooler will reduce your exit temperature by up to 44 degrees! Essential for a heavily modded car.

dsci 3 inch Full Exhaust System - Stainless steel 3 inch Turbo Downpipe, 100 Cell Race Cat and Cat Back with 4 inch slash cut tips.

Eibach Pro Kit Lowering Springs - Improve your handling with our upgraded springs set.

dsci Side Stripes - Side stripe stickers with lettering dsci350.

dsci Rolling Road - We'll measure your cars statistics before and after the modifications.

Optional Oil and Filter Change

Select our optional oil and filter change below to finish off your dreamscience Stage 4 performance package. With the modifications carried out it's obvious that the standard oil and filters fitted to your car will not suit the power increase. We'll supply and fit superior grade oil and filters (Fuchs Titan Pro S 5W 40 ester based grade 5 race oil) to help protect your engine under the new higher performance levels you'll be achieving.

Optional Deluxe ECU Mount

While fitting your dsci Stage 3 Kit why not add a fully compatible RS mk2 ECU Mount?

This ECU Mount gives the engine bay more of a standard/tidy look, whilst protecting the delicate ECU from any water ingress.

Delivery Options

This product is currently only available for sale in the UK. Delivery is not available, as fitting is included so your vehicle must be brought to our development centre in Hull, UK. For customers outside the UK, you are welcome to contact your local dealer to find out more.