Vilas
Expert
- Joined
- Sep 6, 2014
- Messages
- 288
- Reaction score
- 137
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- 338
- Location
- Urbana, Illinois
- Country
- USA
- Snowmobile
- 2014 Viper xtx, Thunder products clutch kit
I love hearing your updates about your turbo sled adventures. I can only imagine what kind of power takes to actually make your arms sore!
Well I am going back up Thursday and I fixed my stupid camera or I would have video from last Saturday but the card got wiped somehow. I can use a pen to write today!!
I also pulled the battery out and found out Allen put the Yuasa back in it which was still a brand new battery when I bought the sled last March. I had put the trickle charger on it Sunday night and it showed fully charged this morning. I took it to the Interstate dealer and it would only push 200 of its intended 310 CCA's so it was bad just like the original one that I had in the 14.
Vilas
Expert
- Joined
- Sep 6, 2014
- Messages
- 288
- Reaction score
- 137
- Points
- 338
- Location
- Urbana, Illinois
- Country
- USA
- Snowmobile
- 2014 Viper xtx, Thunder products clutch kit
Batteries are such simple technology but still can be so hit and miss! I'm sure there is a premium brand out there that can be trusted. Do you know of any?
I just bought an interstate at least I can go to any dealer and get it replaced if I have more troubles
Vilas
Expert
- Joined
- Sep 6, 2014
- Messages
- 288
- Reaction score
- 137
- Points
- 338
- Location
- Urbana, Illinois
- Country
- USA
- Snowmobile
- 2014 Viper xtx, Thunder products clutch kit
Good call on the interstate battery. Looking forward to seeing one or both of these sleds at the TY ride at the end of the month. What a pair of seriously awesome machines!
Yes I am trying to make that one but it is a bitch to drive another 4 hours past where I normally ride to Munising, I will have to find a co-pilot because I am probably driving to Ulmer's a day or 2 before that to get the other sled and that is a 15 out and back.
swampcat
TY 4 Stroke Junkie
- Joined
- Mar 17, 2014
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- 2020 S W LTX-GT
Deka, also goes by East Penn, U.S.A. made.
machzrobbie
Expert
Hate to tell you but if your set up at 7 pounds is faster then the 12 pound set up - the previous set up was tuned very bad. Allan is a great tuner and I'm sure its set up well now - but there is no 7 pound viper that will stay with a well set up 12 pound low compression viper. Pulling 4 degrees of timing is sacrificing a lot of power, and there should be 50 hp between the two boost levels.
Well when I have ridden both but I am going from memory from last year but I can compare them and with the gearing in this thing now a stock motor vs low compression the sled is night and day. The first sheet is the 14 at 9 & 12#'s the second is the 15 with 7 & 10.5 lbs. The 15 is making more track hp with 2#'s less than the 14 and it jumps quicker, The 14 barely made 113 hp at 9 #'s and the 15 is 129 at 7#'s that is 28 hp at the crank difference. then the 14 made 144 hp at 12#'s and this one is making 145 at 10.5#'s and this motor only has 140 miles on it and will step it up as it breaks in.
And remember #'s of boost mean nothing! I know several guys running 4.5 and 5 #'s through MPI trail turbos and are not getting more than 155 hp out of them on the dyno! Just cause your kit says 180 it does not mean that's what you get.
My take on this is that the high comp plus the billet compressor wheel makes this a very efficient torque monster. Chances are the turbo is now spinning much faster and throughputting much more air.
Makes me jealous. If MPI only had a ball bearing setup...
Makes me jealous. If MPI only had a ball bearing setup...
Yes I do believe the billet wheel made a huge diff also.
