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Old 6th June 2014, 08:50
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The one pictured is a standard Honda Civic radiator as fitted to all petrol models from the 1.4 to the V-Tech. I punched a hole in it with the steel bar I was shaping into the nose hoop, so I replaced it with a double width aluminium version imported from China via ebay, which fitted the shroud I'd fabricated.

Despite this I've had a bit of an issue with cooling at high speed. That could be down to my scoops creating pressure behind the radiator and stopping the airflow through it, or it's been suggested that aluminium isn't as thermally efficient as copper. To improve high speed cooling I've fitted a rear mounted MR2 radiator in series with the Honda one and added a BMW auxiliary electric pump to help circulate the coolant. I'll finish plumbing all that in today if I get the motor fully rebuilt.

If I was building another I'd be using an uprated, copper cored Ford Escort RS2000 radiator as recommended by Phil J -

http://www.ebay.co.uk/itm/FORD-ESCOR...item3a8b292ed5

Not cheap but he swears by them and has no cooling issues at all. He's also kept the engine driven fan btw, which works fine but will obviously sap a bit of power at higher revs.

Good luck DC, I know the Lambo was your original dream car, but it's nice to see you back building something a bit more interesting and more likely to just work.
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