Here ya go. The 850 is a pre-production prototype with miles on it. The dyno was done with warm humid air (50 degrees / 80% humidity). The 800 E-Tec is a 2012 with miles on it and the 2013 re-flash.
That's a good way to compare. Both sleds done on the same Dyno. No need to argue whether the numbers are high or low compared to another Dyno, this just shows the actual difference.
Looks like a solid 10 hp and Tq across the board. That's a good 7% to 8% improvement. If the clutch is more efficient as well...you would see better than 10% to the ground. Will that increase blow your socks off? No. Will you feel it? Absolutely.
The G4 is also lighter too...so track hp to weight ratio should be up ~12% or so. Not bad at all.
The reason for the bump in 2015 and 2016 on the 800 Etec was the change in the head work.... here is D&D showing 164 at stock, and higher with a kit. Doo changed the squish dimension, and dome from what I was told. Similar to what some may buy from rk tech or d&d for other sleds mods
Looks like a solid 10 hp and Tq across the board. That's a good 7% to 8% improvement. If the clutch is more efficient as well...you would see better than 10% to the ground. Will that increase blow your socks off? No. Will you feel it? Absolutely.
The G4 is also lighter too...so track hp to weight ratio should be up ~12% or so. Not bad at all.
Looks more like 170-155=15 hp more to me (not 10 hp). And wow look at the 110 ft-lb torque..........it makes as much torque at 6900 rpm as the 800 does at peak. That must feel good.
It does. The 800 Etec never did it for me. Felt soft until higher rpm. First ride on the 850 I was sold. It has the torque down low I'm used to with my 1200's with way more topend over 70-80mph.
Looks more like 170-155=15 hp more to me (not 10 hp). And wow look at the 110 ft-lb torque..........it makes as much torque at 6900 rpm as the 800 does at peak. That must feel good.
Just remember... when someone baits the hook, they use the best bait they have available early in the season.. when you sell something new at the start of the season.. Everything is 100% in the plus column, we shall error on the side of performance.. Later we shall error on the side of durability and reliability and reduced warranty cost.. Just saying not that I have ever been involved with manufacturing a vehicle for consumer use......
By the same token.. I think they are going to be better than where we are now and I may have spring checked one..
The reason for the bump in 2015 and 2016 on the 800 Etec was the change in the head work.... here is D&D showing 164 at stock, and higher with a kit. Doo changed the squish dimension, and dome from what I was told. Similar to what some may buy from rk tech or d&d for other sleds mods
It does. The 800 Etec never did it for me. Felt soft until higher rpm. First ride on the 850 I was sold. It has the torque down low I'm used to with my 1200's with way more topend over 70-80mph.
Gotta love dyno graphs. They can be made to show anything you want. The 850 appears to have broader low end curve, unfortunately we don't have the dyno numbers below 6900 rpm. The 1000 SDI curve is purely theoretical as it combines all three 2007 elevation maps - sea, mid and high. A curve for a 20xx.5 is a pre production curve. They are all with STD correction and from Dynotech.
goodwins got a 850 with 30 miles on it .best track hp he's seeing with clutching upgrades is 82 hp. the best hp hes seen on a full broke in 800 is 80 track hp .there will be an update thru buds but it's not out yet .7950 rpm max before break in .the torque is more flat on the 850 vers the 800 .this will make it a real fun trail sled . :wink_old:
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Ski-Doo Snowmobiles Forum
7.8M posts
167.5K members
Since 2002
A forum community dedicated to Ski-doo snowmobile owners and enthusiasts. Come join the discussion about trails, racing, performance, modifications, classifieds, troubleshooting, maintenance, and more!