I have owned this sled since new and have 2000+ miles of fun, making improvements with updated components and tuning. By no means with what I am about to share with you, is an absolute and you may or may not experience the same results. I will be giving you my true findings with performance and evaluating the products and service I received from the vendors. All of the parts and expense involved has come out of my own wallet. My wife cannot understand why I cannot leave any thing stock, but she is very supportive. Most of the testing has been done by seat of the pants field testing. I plan to have DYNO results for you with regards to overall state of tune, muffler / can comparisons before the season starts. Some may ask why a 900 ACE and not a 1200? Because I have always liked working with smaller displacement engines and getting the most out of them. Let me give you a little back ground about me. I am 62 years old and semi retired as of this year. Been sledding since early 70's and have owned and/or ridden many sleds from Polaris, Yamaha and Ski Doo. I was in the automotive field for 28+ years (ASE Technician, Service Writer, Service Manager, Service Director for Parts and Service). Worked for G.M. Proving Grounds in the 80's as an Engineering Tech. I worked on proto types 10 years into the future, was on the Baja 1000 Factory Race Team - this was way cool! While at G.M. Worked on many cool projects (GM80 front wheel drive Camaro, yes front wheel drive, it would out run a Corvette in the slalom course and drag racing. It was funny, once the Y Car Team (Corvette) got wind of it, all hell broke loose. GM cancelled the project because they would not have any other car that they produce, beat a Corvette. Also worked on a Fuel Injected Turbo Charge Chevette - 20 psi boost, this thing was a rocket). I am a self taught (welder, lathe & mill operator). Had my own flow bench and dyno when I built kart engines. I have drag raced cars. Raced go karts on the local, regional and national circuit (WKA - World Karting Association). I owned my own kart shop and built race motors for many clients all over the united states. My engines have been on many winning local, regional championship winners, also three WKA National Champion Title Wins. Before WKA allowed ground cams in the stock class, we along with many other engine builders built a fixture for twisting cams, to get the specs we where looking for (we had a 7 degree tolorance we could play with (stock factory specs), what a difference a little twist in the right direction would make). I had the opportunity to be a WKA Regional Race Director and Tech Official for three years. This is not to be taken as to beat my chest but to let you know that I have have been around the block a few times. In no way do I claim to be a professional and or expert at any of this, just have had some great experiences over my life time and have learned alot and still have the desire to learn alot more. I have always done most of my tuning and testing in the field, although I have used a flow bench and dyno, the real results are from field testing. I have a six sense when it comes to tuning and have been successful at it. So stay tuned as this will take some time to document for you and to answer many questions I am sure you will have. UpDate 2018: Now use a Turbo Dynamics Data Collector for testing in the field.
Thank You for tuning in.
Edited by bar549, 29 April 2019 - 10:33 PM.