I replaced the stock battery with LFX27A3-BS12 from Shorai, it is rated at 405 CCA as compared to the stock 320CCA. Fits in the same location under the seat, it comes with a lot of shims to take up any slack, I used a few. It is 3.75 lbs. Haven't used it in the cold yet, will report more info after my last trip in February. A buddy has a smaller Shorai at about 210 CCA that weights only about 1.25 lbs but it wont start his cold 800 summit on the first try below zero but will after a few 3 second hits of the start button to warm up the battery. He has done it that way for two years, this summit has no parasitic loads so he does not have to remove the battery over the summer or use a trickle charger. I hope the higher CCA of mine will be the ticket.
Trade Alpha One Single Rail Technology for SHOT use
- Thread starter Frostbite
- Start date
I've been using that same battery in 3 different sleds now. Two of the sleds were four strokes and require some CCA to crank over. The thing is probably about 8 years old now and still going strong. With Lithium batteries in a sled (especially one that doesn't have a pull rope), you actually want to go up in CCA rating to help compensate for the cold temperatures.
battery, starter, and ring gear are an additional 27 lbs. versus non e-start or an additional 25 lbs. versus the SHOT.
More likely the patent is for 5 years as it is not an original idea. As said earlier the idea is from the 60's, they used a battery and no starter. Doo just replaced the power source. The fuel delivery doesn't play a factor as previously it was a carburetor. It is nothing more than a way of cranking the engine. Same as the engine reverse Cat waited 5 years to avoid a law suit. Polaris sued Doo over a suspension and won, part of the settlement was the use of engine reverse. If Cat and Polaris really want this they will have built it already and are testing it, and will release it when legally able.
ES Ring gear non ES clutch damping plate weigh about the same
Jakey there are quite a few things I really like about my Alpha. The track is the biggest positive for me, they really need to make that track with standard drive windows so it’ll work on dual rail skids. I also love the engine and even stock clutch setup especially the automatic deflection. I am really picky about deflection and on my othe sleds I would fiddle with that every couple of rides. It’s nice and tight like I want it but never squeaks. The suspension is the best I have ridden on a stock sled, I had Tom revalve my shocks and I am really close to being exactly where I want it. I also love the smooth power delivery right from tip in to full throttle. This sled isn’t the mid range torque monster that the Doo 850 is but I really like the power delivery and its not giving up much power overall to either of the 850s. The build quality is also excellent, still maybe a little off Doo but better than the Poos I have owned(I have not really fiddled with an 850 Poo yet tho). The bars and controls are excellent, stock skis work pretty dang well for stockers. My only bitches are I had to do e-start on my 19 as there was no factory option, sled still wheeelies out on steep climbs more than it should, and on REALLY deep days I get a bog from either the intake or exhaust being buried.
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