flyrotary@lancaironline.net Mailing List Archive

Steve: Thank you so much Sent from my iPhone Le Roux Breytenbach > On 16 Aug 2023, at 08:25, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote: > > Hi le Roux > > On the Renesis I’ve put a race pump on to ‘reportedly’ reduce cavitation as the basic pump is reported to cavitate at the rpm’s we operate in during take off. > When I took out a restrictor in the return to the radiator on one flight tamper went up considerably and I reasoned this was caused by cavitation. > In response I purchased a race pump from New Zealand. > > My water pump is running at OEM speed, but I slowed my alternator with a larger pulley. > > Steve Izett > > > > >> On 16 Aug 2023, at 11:44 am, Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote: >> >> Hi : What is the optimum waterpump rpm for the 13B as i can modify the pulley diameter and ratio’s for my set - up >> The data i have is that at the standard ratio is 1:1.18 at 6500 rpm for the 13B the pump flo is round about 150 - 160 L per minute. >> So my question: If i run on 6500 rpm for take off then the waterpump impellor turns 6500 x 1.18 ??? >> Must i put on a bigger diameter pully on the pump for a flo of round about 100 L per minute.? >> Don’t know ? >> >> If somebody can help me with that >> >> Regards Le Roux >> >> >> Sent from my iPhone >> Le Roux Breytenbach >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html