Spring Tuning Kit for Turbo Actuators

Regular price
£29.91
Regular price
£35.37
Sale price
£29.91
Shipping calculated at checkout.

Now you can fine tune your turbo actuator to the exact needs of your engine with this complete tuning kit. In your actuator tuning kit, you will find four or five springs (dependent on your actuator) and the associated spring retainer. The strongest spring is the red, followed by the blue, yellow and finally the green which is the weakest.

Please select from the options above if you require this kit for an 048 or 049 actuator. The 048 actuators are those with a big body, the 049 actuators are those with a standard size body.

Piston 049 acuators and diaphragm 049 actuators use the same springs. 

The spring colour codes and their running pressures are as listed below.

T2 049 (Small) Actuator Springs (Both Piston and Diaphragm Type 049):
Green –  running pressure 10 psi (0.7 bar) - spool up/opening pressure 5 psi (0.35 bar)
Purple - running pressure 13 psi (0.9 bar) - spool up/opening pressure 7 psi (0.5 bar)
Yellow – running pressure 15 psi (1.0 bar) - spool up/running pressure 9 psi (0.6 bar)
Blue – running pressure 18 psi (1.2 bar) - spool up/running pressure 14 psi (0.95 bar)
Red – running pressure 20 psi (1.4 bar) - spool up/running pressure 17 psi (1.1 bar)

T3 048 (Big) Actuator Springs:
Green - 10 psi (0.7 bar)
Yellow - 12.5 psi (0.9 bar)
Blue - 17 psi (1.2 bar)
Red - 18 psi (1.3 bar)

We normally supply our actuators, unless requested differently, with a spring that will match the tension of the manufacturer’s original fitment valve. However, as many owners undertake tuning modifications some may wish to re-tune the actuator characteristics to suit a given application.

Note: Serious or fatal damage may occur to the engine and associated components if this product is incorrectly matched to the individual engine requirements. Forge Motorsport nor any of it’s Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this product

These kits are NOT suitable for our Diesel actuator for Garrett VNT turbos.

If you are unsure if this product is suitable for your application, please contact us. 

*Please Note - The colours of the springs illustrated may differ to what you receive. All spring kits are brand new but are not sprayed. Colour is used as an identifier*

Please note that the quoted spring pressure against the various colour codes relates to the mechanical aspect only, applicable to earlier turbocharged engines that are not ECU/solenoid regulated.

However, modern ECU/solenoid engines do not require the target boost pressure to be matched pound for pound by the quoted mechanical specification of the springs we offer. Please take advice from an appropriately qualified tuner if you are unsure of the correct spring application for your model and the planned level of tuning.

For our T2 spring range (FMAS049):

• Red spool up/opening pressure 17 psi /1.1 bar running pressure/full stroke 20 psi/1.4 bar 
• Blue spool up/opening pressure 14 psi/ 0.95 bar running pressure/full stroke 18 psi/1.2 bar
• Yellow spool up/opening pressure 9 psi /0.6 bar running pressure/full stroke 15 psi/1 bar 
• Purple spool up/opening pressure 7 psi/0.5 bar running pressure/full stroke 13 psi/0.9 bar
• Green spool up/opening pressure 5 psi/0.35 bar running pressure/full stroke 10 psi/0.7 bar

What are the delivery methods and charges for UK, Europe and Rest of World (ROW)?


Regal Autosport uses a variety of shipping services to give the best combination of value, service and speed to our customers. This will vary on location, value of the time and size to name a few.


Regal Autosport may drop-ship directly from the manufacturer to the customer if the product is a non-stock item and this provides the best value and service. If this is the case, the delivery method may be different.


Shipping is calculated automatically at the checkout, depending on your location and the products ordered. On occasion, the shipping price may be incorrect due to your location or the product being oversized in dimension or weight. Whilst we try to be as accurate as possible with our shipping prices, from time to time they might be inaccurate. We will not know until we process your order if this is the case, we will contact you if this is the case and provide you with the option of cancelling or payment of the difference.


Due to the value of the products sold we only deliver to the verified address of any payment method OR any address if paid for by bank transfer. Thanks to scammers, we simply do not take the risk and any order which does not have a verified address will be cancelled.


Any customer with an order which has been damaged in transit must notify Regal Autosport immediately and within 14 calendar days of shipping. If this is not done, the shipping insurance cannot be used, and you will not be compensated. 


United Kingdom Mainland


Within the United Kingdom Mainland, we use DPD Local. This service is a next working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day. A working day is Monday - Friday only.


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.


United Kingdom Non-Mainland 

Within the United Kingdom Non-Mainland, we use DPD Local. This service is a next working day or 2 working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day or the second working day. A working day is Monday - Friday only. 


Europe 

For Europe, we use DHL. Your delivery location will determine the transit time. Orders in-stock and placed before 2PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day. 


Rest of World (ROW) & Oversize 


For ROW and oversize items, we typically use DHL Express. Your delivery location will determine the transit time. Orders in-stock and placed before 2 PM will ship the same working day. A working day is Monday - Friday only. 


Tracking is manually sent to your email address once your order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


Please note: The above is a general guide to how we plan to ship your order. From time to time this may change and we may decide to ship with other couriers.