Radiators.. STD or custom Ally?
 

I've almost finished my 2.1 engine for the Ammo, and will be needing a new radiator anyway as mine is pretty knackered and had been refurbed once before.

Anyone had a custom ally one made for their car? I don't want to go for a chinese one really, the 3-core one they do doesn't fit without mods to car and/or rad, 2-core may be ok.. build quality not so much.

New std rads are readily available, but with much uprated engines are they enough?

I had one made by Allisport for my Lotus, a replica of the original I sent them, top notch work, although it did cost around £500 with fan included.

opinions/experiences please...

cheers

Steve T

radiators
 

I had a three core matrix fitted to the OEM top and bottom header tanks. The radiator company (which has since gone) said it was a bit of a stretch but they managed to make it fit. Cost about a ton to do.
I did fit a Chinese 2 core in the 1800 but the filler neck was about 10mm too high and just touched the bonnet underside. I sold it to a Ray on here who had an amazon and hence more clearance.
Other than that the Chinese radiator fitted well and had no cooling issues
Russ

I believe that's what Amazon Cars do with their 'Triple X' rads.. but at a price. Got one quote back from a place who've done an Amazon rad in Ally before and its just under £500 inc vat.

What's wrong with a properly cleaned out standard one? My rally car never gets above half-way to (NOT in) the Normal sector on the temp guage when on the move and a switchable electric fan keeps it cool in queues or very slow moving traffic. I also have a rally plate holder in front of the grille.
I have measured the temperatures at top and bottom of the rad with an accurate thermocouple device and when "stinking hot" after a run, the top of the rad is never above 85 deg C and the bottom is cool enough to touch comfortably.

I just get the original tad rebuilt with bigger cores. Even with no fan the temps are low unless sat in traffic for long periods on hot days.

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240 radiator/shroud, Awesome "modern" AC...
Temp gauge mid-way at idle with AC on @ 90° ambient.

I like how you have fitted the 240 rad

Would of thought standard clean rad with 240 5 blade fan, or elec fan would be fine.
Not sure how well a shiny alloy radiator actually radiates.

The radiators in our car while emmittng 'some' thermal infra red heat actually convect heat. That is transfer the heat within the matrix to the surrounding air.
Perhaps we should call them convectors!
Therefore painting them black adds little to nothing to the process.
Russ

Actually it does. Surprisingly, black objects always radiate and therefore lose more heat than shiny ones of the same size. This was proved by my O-level physics teacher back in the 1960's.