If you're changing to 12v, instead of using the 270 amp alternator, use the 130-145 amp size that practically all big rigs use. They are about $200 with internal regulator. You could use two-one for the starting batteries and one for the house batteries with a solenoid cross over incase one of them quit. By using the same alternators as the big rigs, then you're assured that a replacement is handily near by. One of the trucks I sold have the 270amp alternator because it has a Telma electric retarder. It went out and had to wait 3 days for it to come from the area supply house. Compared to the 130-145ampers that we have shelves of them. With Delco, suggest the 35SI which is their most recent alternator aimed at the new trucks with higher under hood temps. Leece/Neville, what would be the old Motorola design are also good. Good Luck, TomC
Let me toss out one more tidbit. The alternator was a freebie from a friend. I looked on their website and this unit is reccomended for use on firetrucks and abbulances etc. It looks HD!! It is not much bigger than the 135a units. It seems to be a std heavy duty? Can I just toss out a freebie?
After less than careful consideration, I have decided to completely rewire my 05 during the conversion. Wife says it will never be finished anyway!!! I am going to wire in a basic saftey system with overtemp, and low oil pressure. These will be tied to warning lights as well as the fuel shut-off selanoid. I am going to eliminate the large panel in the back, and remove and replace the front panel. The alternator on the bus now is factory. I won't say it is huge but a 5 gal. bucket is close!! I have a brand new Leese-Neville 270 amp alt. that I would like to use. The factory unit has a seperate regulator also. I'm sure it was sized correctly for passenders and all the lights and crap that were in the bus, but all of that is gone now. Anybody else done this? Tips, suggestions?