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Cooling
First of all the radiator had to go a lot forward. There was not much room for a radiator on Raider. If to put higher radiator, then it should fit between the frame rails. If to go wider then body to frame attachment points will be an issue. The fact was that 1 row radiator could not have as much surface area as needed for cooling capacity, so I needed more rows. Ideally I wanted to go for custom built 3 row all aluminum radiator and it would have been useful to have already 2 or 3 built, otherwise if to brake one there is no replacement û at the end VERY EXPENSIVE.
Alternative was to find some production car radiator. I couldnÆt find many cars with 2 row radiators. The one that I found was Ford Explorer 4.0. I was a bit concerned about cooling capacity, but still went for it.
Oil cooler is from Mercedes W126 S class
Power steering oil cooler is from Silverado
àAlso I kept AC radiator. I havenÆt got it connected yet, need some custom hoses to be made for it.

Cooling fan
I didnÆt want to keep original belt driven fan. There were a lot of electrical fans available on the market, so I bought one 16ö 2750 cfm from Ebay, but when it arrived and tried it, it didnÆt blow like I expectedà Luckily I found out that Ford Taurus had 16ö electric fan in stock. Bought one and WOW, this thing blew much more than the one before.
The next question was where to attach the fan û front or back of radiator. There are a lot of problems if to put fan in front. If to build a fan shroud that allows fan to blow through the entire core, then incoming air with speed has a very small area to go in. If just to attach fan in front of the radiator without shroud, then itÆs not efficient at all. Also, if to use AC radiator, then the fan should be in front of it, which reduces efficiency even more.
So definitely wanted to put it to the back of radiator, but with fan shroud it had some clearance issues. After some measuring and thinking about radiator position, I managed to build a shroud.

Attaching the other radiators was a little challenge as well. They came so close to the grill that I had to trim it quite a bità



Results & Conclusions
Despite the radiator size and cooling capacity concern at the beginning I have never overheated the engine. I think itÆs a big thanks to the powerful fan as well. The amp draw was so big that it blew 30A relay and 40A fuse, so I went for 2 parallel 30A fuses and relays (it is controlled by Megasquirt ECU).
I had a very weird problem with power steering fluid temperature. When we started the car in the garage first times, I noticed that the fluid was getting hot even when steering wasnÆt used at all, so I installed the original Silverado power steering cooler. It didnÆt look very efficient, but as it was original I expected it to be fine. First offroad û fluid was getting extremely hot, blew steering box input shaft seal out and oil with it of courseà I knew that if I run the engine after that, IÆll kill the pump without fluid, but as it was the first offroad with V8, I didnÆt want to be towed home, so pump was sacrificedà Put a new Chevy pump, new Montero steering box û same problem, too hot. Patch on patch engineering û run the fluid return line also through radiator AT cooler (I had AT radiator) û PROBLEM SOLVED. Do not know the reason still, maybe Chevy pump and Mitsu steering box do not fit together, or something else. The pump is actually universal pump that IÆve seen also on Dodges and Fords with different pulleys and reservoirs. IÆm 100% sure I connected the lines correctly, didnÆt swap them. If anyone has experienced the same problem and/or found different solutions for it, I would like to knowà

As you can see from the picture above, the hood lock needed to be moved as well


Will add some more pictures soon