How to Install an Alloy Radiator & Wire Dual Fans | Supercharging the MX5 Miata Ep 14

Alloy Radiators are a great bolt in upgrade for any modified engine, they are made from lightweight materials and feature an increased core size to maximise cooling capabilty. As I plan to supercharge the 1.8VVT engine in the MX5 this will be essential to keep the engine from overheating during extended periods of hard driving. I replaced the water pump and the thermostat after purchasing the car last year, so I know they are in good condition. The only questionable part left in my cooling system is the stock MX5 radiator. So in todays episode I'm going to be removing the standard rad and fitting an alloy replacement. This replacement radiator also came with twin fans which require wiring up. As my car is running the ME221 standalone ECU, the fans can then be tested in the tuning software (MEITE) to ensure they are working correctly.
The car in this video is my 2001 Mazda MX5 - the latest Fast Rust project car. Fun & reliable daily driver is my goal for this iconic sports car. If you want to follow along with my 'Miata Journey’, check out this playlist: • Mazda MX5 / MIATA - ...
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► Background Beat : Instrumental produced by Chuki / chukimusic

[@graemeparker3375]

Hi enjoying the updates. Cheap cold air supply mod for consideration is to remove the plastic fog light insert and run some 75mm flexi tube into the engine bay near to where the air filter will be located for your supercharger. Does take a little bit of metal work but worth it to get lower IAT. Keep up the good work!

[@FastRust]

Thanks for the tip Graeme, will look into that when the time comes. Had initially planned to locate the filter near the OEM position - behind passenger light (UK), as there is a hole where I presume fresh air is meant to pass through. Is this where you'd run the flexi pipe to?

[@graemeparker3375]

@@FastRust Yes thats the place for it. A bit of metal cutting to widen that hole and the flexi pipe will push through.

[@FastRust]

👍🏻

[@ziyakucuk4082]

big radiator with two fans👍

[@FastRust]

that's the one!

[@u-an6821]

Also I would be interested in the fan plug from the cars loom. They're near impossible to find for some reason haha

[@BinManSays87]

Dude did your fan switch like this set-up as I found when I threw a similar dual fan rad on my Mazda it started eating fan switches

[@FastRust]

So far so good but that is the potential issue wiring them this way

[@u-an6821]

Where abouts did you get the radiator and fans?
Do you know what brand they are?
Think I'll have clearance issues with my boost piping between the radiator and ARB

[@FastRust]

I got them second hand so I'm not sure what they are. They're slimmer than the stock fan though by quite a margin. Just filmed a video on how to modify the radiator to be able to get pipework over the top, will be out next month. May be helpful to you.

[@u-an6821]

@@FastRust ah I see. Unfortunately I've already gone for the around the rad approach. But maybe something I would consider later on. Top fed intercooler with welded 63mm pipes

[@FastRust]

Ah no worries. Yeah the intercooler I have to use is a top feed so the only way to get to it is over the rad!

[@FastRust]

As for the plug I'll have a look see if I can find it. I sold the stock rad and fan, can't remember if the plug was on it or not..