Radiator & Intercooler Kits
Radiator & Intercooler kits for the XR4Ti
Custom made 100% Aluminum Radiator and Intercooler Combo for the Merkur XR4Ti.
No need to "adapt" other intercoolers and radiators to work in the XR, this is a true "bolt-in" set up.
Radiator inlet and outlet accept the stock 85-88 radiator hoses.
Radiator bolts up with the stock radiator mounting hardware and resides in place of the stock radiator, which means you can keep your AC with this kit.
Cosworth intercooler bolts right into the upper radiator mounting tabs.
Radiator is BRAND NEW. The intercooler is a proven Sierra RS Cosworth unit sourced from the UK and is a used part, however we pressure test these intercoolers to 30psi to ensure they are fully-functional units before shipping out.
Installed pics for reference.
Install Tips: For 1985-1988 XR4Ti Automatic, you will need to add an external transmission cooler as this radiator does not have provisions for a trans cooler. All factory coolant lines are plug and play. For 1985-1988 XR4Ti 5spd, you will need to mimic the (much simpler) coolant path of the automatic XRs. You will have to connect the lower coolant bottle hose into the water pump hose. This can be done easily with the factory automatic molded "Y" hose, or you can DIY with a "T" fitting. If you wish to install this kit on a 1989 XR4Ti it will be much easier with the earlier style coolant bottle mounted on the passenger side. We can offer a courtesy exchange good pass side coolant bottle for your good drivers side coolant bottle upon request.
Intercooler pipe / turbo elbows are now available! See the top menu.
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How well does it cool since its so much shorter than the stock radiator?
Outperforms the stock radiator. Cooling capabilities will noticeably improve over stock.
How do you bolt the stock "puller" fan to this?
The stock puller fan cannot be used with this radiator. 12" universal mount radiator fans can be found very inexpensively to use. ($29.95 at www.siliconeintakes.com FYI). You can even fit 2 of those fans side by side if you feel necessary, however one will work just fine in most applications.
I have an automatic XR, what about the transmission cooler in the stock radiator?
Consider this to be a good opportunity to upgrade your radiator as well as trans cooler. Most auto parts stores sell external transmission coolers for under 30 bucks and will work much better that the stock one thats inside the factory radiator.
I have a 5spd XR an I don't see the lower tube that runs the length of the bottom of the radiator included - where am I supposed to hook up the hose from the bottom of the coolant bottle?
Our radiator is set up to use the much simpler coolant hose routing found on the auto XRs, which has the lower bottle hose "T" into the water pump hose. Easy to fabricate yourself, or if you prefer the cleanest looking install possible check out page 9 here on the BAT catalog: http://64.202.180.37/files/xr4fa.pdf
Whats the best way to regulate boost now with an intercooler installed?
We highly reccomend a manual boost controller from boostvalve.com and installing it per their instructions specific to the XR4Ti: http://www.boostvalve.com/merkur.html
What blow off valve do you recommend for this intercooler installed on an XR4Ti?
A high quality DUAL PISTON valve is a must. Cheap single piston valves will give you nothing but trouble. We use and highly recommend the Forge 004 BOV from: http://www.mc2racing.com/products/xr4ti/engine/forgebov/index.html