cnicholson Posted August 31, 2012 Share Posted August 31, 2012 has anyone fitted a Nippon denso alternator to there 2.5 pi? if so what ampage version did they use, I have a denso 27060-87510 and a fitting kit, not sure if the alternator will be man enough though at 40 amp? does anybody have a wiring diagram for one too? Quote Link to comment Share on other sites More sharing options...
DJB_Harvey Posted August 31, 2012 Share Posted August 31, 2012 I've been running a 40Amp version on my PI for around 3 years it's been fine .. However I do think it could be marginal in winter running conditions , something my car doesn't do . Most are 3 wire .. One main feed one warning light and an ignition triggered supply . Quote Link to comment Share on other sites More sharing options...
Clive Posted September 1, 2012 Share Posted September 1, 2012 Weren't the original lucas 27amp or something similar?Have an add up of what you have on the car.Lights are the big one, if 4x55watts that is 20amps approx, but add heater motor (5amps??) heated rear window (another 5??) plus wipers....should be OK but not a large margin for a cold,wet dark long run. But in general the old cars are not electricity hungry. Quote Link to comment Share on other sites More sharing options...
CRAJ Posted September 1, 2012 Share Posted September 1, 2012 cliftyhanger wrote:Weren't the original lucas 27amp or something similar?Have an add up of what you have on the car.Lights are the big one, if 4x55watts that is 20amps approx, but add heater motor (5amps??) heated rear window (another 5??) plus wipers....should be OK but not a large margin for a cold,wet dark long run. But in general the old cars are not electricity hungry.Don't forget the electric fuel pump on a pi and the starter motor works hard at start up!I have a 45amp 18ACR off a Stag on my pi and a bigger battery.Colin Quote Link to comment Share on other sites More sharing options...
Ridgetone Triumph Posted September 1, 2012 Share Posted September 1, 2012 My ex PI on SU's runs the Std PI alternator, but could do with a bigger one as when all the electrics are on, especially during the winter nights the car struggles to idle, mind you it is fitted with Halogen head lights, spots lights, heated rear screen, twin speed demister fan, dual interior door lights, towbar electrics, electric overdrive, 8 way electric seats....Oh the options of the '70's goes on and on!!!!........ ;D Quote Link to comment Share on other sites More sharing options...
Ridgetone Triumph Posted September 1, 2012 Share Posted September 1, 2012 Oh I forgot my electric fan....Can't imagine what would happen if I had a power cut ??) Quote Link to comment Share on other sites More sharing options...
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