Description
Product Description
With modern day aftermarket ECU tuning pushing powerful engines harder. In certain conditions the vehicle will run the risk of receiving inadequately cooled air affecting the engines efficiency and ultimately losing power.
With this in mind, Forge are proud to release another PolarCooler as the first auxiliary cooling system for the BMW B58 engine Found in the A90 Supra. Following extensive testing on the road and dyno working with 3 different styles of water core with different fin pitch configurations, we are proud to present the ultimate in frontal water cooling solutions.
If you are a keen modifier and wish to push the limits of your A90 this chargecooler is a must, With 177% increase in volume hot climate owners will definitely appreciate the development that has gone into this product resulting in safer IATs (inlet air temps) for a longer period of time meaning when on track it takes longer for the standard ecu to reduce ignition timing which will create power loss. With the Forge PolarCooler it results in more power for longer with peace of mind for track day sessions.
The PolarCooler is available in either a powder coated satin Black finish or motorsport raw Alloy.


The uniquely developed Forge PolarCooler features:
- An increase of over 170% extra capacity using a 18 fpi (fins per inch) louvre super tech cooling core for maximum cooling.
- The PolarCooler replaces the OEM chargecooler radiator.
- This chargecooler has been designed featuring triple pass water flow to ensure all of the surface area of the core is utilised, meaning maximum cooling efficiency.
- This unique design has allowed inlet temperatures to be lowered by 20°C (68°F) in 3 back to back runs on the dyno.
- The Forge PolarCooler locates in the OEM position and is supplied with anti-corrosion black powder coat on the hand fabricated end tanks and core or motorsport raw alloy
- A reduction of the temperature of the cooling water is directly equated with an improved cooling performance of the charged air.
- With an increase in volume of water introduced to the cooling system the thermal temperatures can be kept at a much reduced level over a longer period, ensuring greater performance and efficiency which in turn is perfect for your fast road and track enthusiast. The Forge radiator has a volume of 23 litres compared to the OEM of just 8.3 litres.
Dimensions:
OEM:
500mm x 615mm x 27mm (8.3l)
Forge Polarcooler:
480mm x 600mm x 80mm (23l)

This product is designed, developed and manufactured entirely in Great Britain and is covered by our worldwide lifetime warranty. We estimate that it will take around 4-5 hours to complete installation of this product.

Check your vehicle compatibility: Click here
Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.
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Compatible Vehicles
Instructions
Toyota Supra A90 and BMW Z4 Chargecooler Radiator
Warranty
10 Year Warranty Information
The majority of Forge Motorsport products come with a limited 10 Year Warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.
For further information, please call our customer service team on +49(0)3222/1097-308 or email info@forgemotorsport.eu.
Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.
This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.
Shipping
European Shipping
We ship to selected EU countries as displayed during the checkout process.
Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and your destination.
Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact us if you require any more information via our contact page.
We reserve the right to change the delivery service and our shipping providers at any time.
Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper, however we may be able to assist in some cases.
FAQ's and other info can be found here.
Manufacturer & EU Contact Details
Manufacturer
Company Name: Forge Motorsport
Address: Unit 1A, Ashville Trading Estate, Gloucester, GL2 5EU, United Kingdom
E-Mail: info@forgemotorsport.co.uk
Phone: +44 1452 380999
EU Responsible Person
Company Name: Milltek Sport GmbH
Address: Gottlieb-Daimler-Str. 1-3, 53520 Meuspath
E-Mail: info@millteksport.de
Phone: +49 (0) 3222 1097308
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