I'm running both his 140 amp alt and his smart charge one with the button for force to float. I'm using a Balmar
serpentine pulley kit.
I didn't know about Mark's serpentine kit before I purchased the Balmar
one, that is I believe actually someone else's, just Balmar sells it?
Anyway apparently Mark's serpentine kit basically overdrives the alternator which gives more power at a lower RPM
and also keeps the alt cooler as the fans are turning a higher RPM
Being that I almost never exceed 2200 RPM with my motor
, I think it would have been a good fit for me.
But so far installation
was easy, very simple and it has worked well, as advertised, no issues, plug
Only thing I'd add that is not in his instructions is apparently you can mount the temp sensor on either side of the alternator, but the side that is inboard on a Yanmar
is the side of the alt that get hottest and is the best side to mount the sensor.
Get the one with an isolated ground if you desire to install an ammeter to know alternator output, one can be put on the positive side, but it limits your options and is best put on the negative side. I believe also he can remote
mount the diode pack, removing a lot of heat form the alternator, but am not sure as I didn't go that route
I'd suggest giving him a call and discussing with him your needs unless you know exactly what you want
Rich Boren, SV Third Day, also of Cruise
RO fame distributes Mark Grasser's products