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RFlower · Posted: Sun Nov 20, 2005 6:02 pm Post subject: Radiator - maximum HP?

Does any one have any idea what is the maximum engine BHP the standard 1.7 ie radiator can cope with?

I have an NSU Ro80 into which I have put a Mazda rotary engine, giving about 170 BHP in place of the original 115. I have slight overheating problems in traffic, especially if I go to Spain in the summer, even though I have fitted a large electric fan.

The Mazda engine is longer than the orginal engine, and rather too close to the radiator. I have been cosidering having a radiator "custom made", but these come pretty expensive.

I have just noticed that my Alfa radiator will fit into the Ro80, and is thinner. I think, being more modern, it may be more efficient, and it would be cheaper to buy than a custom made one.
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Dick Flower, Nr. Carcassonne. '94 Trofeo 1.4 ie (F), '93 Imola 1.3/1.4 ie (now for breaking) (F), '91 1.7 ie (GB)(spare car), '86 Sprint 1.5 QV (F). '87 VW Syncro camper (F), '73 NSU Ro80 (F), '99 Fiat Seicento (F)

Dreamracers · Posted: Sun Feb 12, 2006 5:36 pm Post subject:

I suppose it would depend what you were planning to do about cooling - in our sud we have fitted a pair of 'proper' fans with huge air flow, and it works a treat, but as we arent at silly BHP, then I cant really be of a lot of use!
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Alfasud 1.7Ti & Alfasud 1.3Ti