Radium Coolant Expansion Tank OEM location - Elise/Exige 06-11 (2ZZ-GE)
Radium Coolant Expansion Tank OEM location - Elise/Exige 06-11 (2ZZ-GE) is backordered and will ship as soon as it is back in stock.
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This kit is compatible with all S2 Elise and Exige models that use the Toyota 2ZZ-GE engine (N/A or supercharged). The Radium Coolant Expansion Swirl Tank features three ports that use -6AN male adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design constructed of billet aluminum.
The two halves are bolted together along with a CNC billet aluminum cap receiver which mates to any standard 32mm "Type-A" style pressure cap. The Radium Engineering tank also has a swirl feature, as shown. Pressurized coolant is sent into the vortex chamber's inlet tangentially and accelerated to a high rate of rotation. This is an old hot rod trick to help aid in deaerating the system.
The S2 Lotus Elise, Lotus Exige, and Lotus 2-Eleven comes standard with a Denso coolant expansion tank. This is the same plastic tank that is found in the Toyota 2ZZ-GE equipped vehicles. For fitment, Lotus designed a complex bracket that incorporates a mount for the electric hot-soak water pump. There has been cases reported where the Denso tank has failed and owners have found that new replacements are quite expensive. Radium has simplied the Lotus design by making two separate mounts and further improved it using a robust aluminum tank and adapting the factory hoses to -6AN fittings.
The picture above shows the factory Lotus setup (left) and the Radium setup (right).
The mount uses all factory threaded mounted holes. Because of this, there is no need to drill or modify anything as it bolts in. Install is a fairly simple process that can be performed by an average mechanic. Everything is accessible with the rear clam intact. Aluminum push lok-hose ends are included to convert the factory coolant hoses into -6AN.
Includes:
Billet Aluminum Coolant Tank Anodized Black
Nickel Plated Sight Tube Fittings
Aluminum 6AN Male Adapter Fittings Anodized Black
Aluminum 6AN Hose Ends Anodized Black
Laser Cut Aluminum Tank Bracket Powder Coated Black
Laser Cut Aluminum Hot-Soak Water Pump Bracket Anodized
Rubber Isolation Coolant Tank Grommets
Hot-Soak Water Pump Cushion Clamp
Mounting Hardware
Options:
The optional Radium Engineering pressure caps (sold separately) allow the user to select a range of pressure that was not possible with the Denso tank. The purpose of a high pressure cap is to increase the boiling point in the cooling system providing improved cooling efficiency. Each cap is manufactured from stainless steel with a race proven high pressure valve. This is something to consider when tracking the vehicle in extreme conditions.
Note: The OEM Lotus pressure cap is 1.1Bar.
Can I return a product after install?
Once a product has been installed, used or fitted it is no longer returnable.
How long do I have to return a product?
Customers have 7 days inclusive from the day they receive their order to lodge a “Return Request” with ModsDirect. If the return form is approved (notification by email) the item must then be returned within 21 days. All returns must be trackable.
Please note that exchanges, refunds or credits will NOT be processed until the returned product(s) is received by ModsDirect.
Where do items need to be returned to?
After submitting a “Return Request” form, ModsDirect will be in touch via email to confirm details for return.
How do I return items?
All returns must be returned to ModsDirect by courier or post. All returns must be trackable. In some instances, ModsDirect may offer a return label.
What about restocking fees?
All returns will incur a fee of 15%. This is to cover fees incurred by ModsDirect for payment processing and handling. We are at the mercy of paying for services used at our website regardless of whether the order remains completed or reversed.
Who pays for return shipping?
All return shipping costs are the responsibility of the customer. However, if a customer has received the incorrect product, ModsDirect will cover return fees and provide a courier pickup at no cost to the customer.
Exchange, Credit or Refund?
If a customer requests a return, they may be eligible for either an exchange, credit or refund based on the nature of the return and product availability. If refunding, moneys will be returned to the customer via the original payment gateway used at checkout.
Can I drop a return off to ModsDirect?
Sorry, no in-store return option is presently available.
I damaged the packaging during unboxing, can I still return?
Unfortunately not. All packing materials must be in resalable condition for a return. Some minor damages such as a neat cut of a package seal may still be eligible for return. Please include a photo of the packaging with your Return Request form.
By purchasing from ModsDirect you agree to the Return Policy outlined above.
The “Vehicle Fitment” tab found on ModsDirect product listings are to be used as a guide ONLY. ModsDirect does not take responsibility for any misinformation on the Vehicle Fitment tab. The customer must ensure proper and correct fitment on their vehicle prior to ordering. If any errors are found in any product, you are encouraged to inform ModsDirect by clicking here.
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