anthonym Posted July 29, 2012 Share Posted July 29, 2012 road use. high and low ambients. though track is interesting. anthony Link to comment Share on other sites More sharing options...
James_Russell Posted July 29, 2012 Share Posted July 29, 2012 I've seen over 80 centigrade in a type 9, attached to a bellhousing dry sump system. This was a car that had been lapped quickly around Mallory Park. Link to comment Share on other sites More sharing options...
RD Posted July 29, 2012 Share Posted July 29, 2012 Mostly due to friction and conduction from the engine. I know my CSR Caterham 6 speed must get hot on summer days particularly. Not sure of actual temps but 80 would seem viable; one of the reasons I drain and replace the gearbox oil each year. Rob Link to comment Share on other sites More sharing options...
James_Russell Posted July 29, 2012 Share Posted July 29, 2012 This is my source. The temperatures were measured using an external probe-y thing. Bear in mind the 80 deg+ figure was a bellhousing dry sump car after a 30 minute track session. Temperatures would be lower without the dry sump. Link to comment Share on other sites More sharing options...
rj Posted July 29, 2012 Share Posted July 29, 2012 Anthony, On your R5 the engine oil will heat up the gearbox, hence the 'box will be slightly hotter than the engine oil... Suppose the BD does not have an integrated belltank. Link to comment Share on other sites More sharing options...
anthonym Posted July 29, 2012 Author Share Posted July 29, 2012 hi RJ, yes the tank is separated from the engine in a corner. Edited by - anthonym on 29 Jul 2012 19:46:59 Link to comment Share on other sites More sharing options...
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