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Nytro vs new 800 Dragon

M

mr rxl

Veteran
Joined
Jan 3, 2007
Messages
35
Location
Manitoba,Canada
I'm not one to bash other brands, but you Nytro guys will be happy to hear some real world results.
We had rideable snow last week and my brother-in-laws new Dragon had nothing for the Nytro's. They raced a bunch of times up 100MPH.
The dealer say there is new mapping coming already for the Dragon.
 

mr rxl said:
I'm not one to bash other brands, but you Nytro guys will be happy to hear some real world results.
We had rideable snow last week and my brother-in-laws new Dragon had nothing for the Nytro's. They raced a bunch of times up 100MPH.
The dealer say there is new mapping coming already for the Dragon.
Click to expand...

Well that's good news seeeing as I'm coming off a 700 Dragon.

I'm still thinking the Nytro is not goin gto touch a Dragon when the trail gets rough, I bought it in a move to start acting more my age instead of thinking I have to pound over every mogul out there.
 
Dyno Numbers of the 09 800 switchback...
Heat soaked Motor in stock forum. DTR website.

RPM Clb-ft CHp lb/hr lb/hph degF Ratio second
6000 85.0 97.1 55.5 0.59 44 14.8 0
6100 85.4 99.2 57.7 0.60 45 14.7 0.6
6200 86.2 101.7 59.6 0.61 46 14.3 1.3
6300 85.9 103.0 62.7 0.63 44 13.8 1.9
6400 86.8 105.8 66.9 0.66 45 13.2 2.6
6500 87.6 108.5 68.3 0.65 45 12.7 3.3
6600 88.3 110.9 68.6 0.64 41 12.5 4.2
6700 88.4 112.7 69.3 0.64 42 12.4 5.1
6800 88.5 114.6 69.5 0.63 43 12.3 5.5
6900 90.6 119.1 77.6 0.67 43 12.4 6.1
7000 91.0 121.2 76.8 0.66 43 12.5 6.3
7100 94.5 127.7 84.4 0.68 44 12.3 6.9
7200 98.2 134.6 86.0 0.66 45 11.9 7.5
7300 100.9 140.2 83.1 0.61 43 11.7 8.7
7400 101.4 142.9 87.6 0.64 44 11.8 9.3
7500 101.3 144.6 89.5 0.64 43 11.8 9.7
7600 101.1 146.3 94.3 0.67 43 11.6 10.1
7700 102.4 150.2 94.9 0.65 43 11.3 10.6
7800 102.9 152.8 96.5 0.65 44 11.3 11.4
7900 101.2 152.3 94.8 0.65 44 11.4 12.1
8000 97.8 149.0 92.2 0.64 44 11.4 12.8


These notes were also noted, since other dragons were only 142, but have heard their is an update for them

So what gives?
Based on this lean fuel flow and high HP, it appeared that this Switchback has high
altitude calibration like SkiDoos use. But I recently heard from Polaris’ Darren Hedlund
that all 09 Dragon 800’s (SP, SB and RMK) have identical calibration
 
What the Nytro does so well in this situation is get the holeshot. They really come off the line hard.
 
SledFreak said:
Dyno Numbers of the 09 800 switchback...
Heat soaked Motor in stock forum. DTR website.

RPM Clb-ft CHp lb/hr lb/hph degF Ratio second
6000 85.0 97.1 55.5 0.59 44 14.8 0
6100 85.4 99.2 57.7 0.60 45 14.7 0.6
6200 86.2 101.7 59.6 0.61 46 14.3 1.3
6300 85.9 103.0 62.7 0.63 44 13.8 1.9
6400 86.8 105.8 66.9 0.66 45 13.2 2.6
6500 87.6 108.5 68.3 0.65 45 12.7 3.3
6600 88.3 110.9 68.6 0.64 41 12.5 4.2
6700 88.4 112.7 69.3 0.64 42 12.4 5.1
6800 88.5 114.6 69.5 0.63 43 12.3 5.5
6900 90.6 119.1 77.6 0.67 43 12.4 6.1
7000 91.0 121.2 76.8 0.66 43 12.5 6.3
7100 94.5 127.7 84.4 0.68 44 12.3 6.9
7200 98.2 134.6 86.0 0.66 45 11.9 7.5
7300 100.9 140.2 83.1 0.61 43 11.7 8.7
7400 101.4 142.9 87.6 0.64 44 11.8 9.3
7500 101.3 144.6 89.5 0.64 43 11.8 9.7
7600 101.1 146.3 94.3 0.67 43 11.6 10.1
7700 102.4 150.2 94.9 0.65 43 11.3 10.6
7800 102.9 152.8 96.5 0.65 44 11.3 11.4
7900 101.2 152.3 94.8 0.65 44 11.4 12.1
8000 97.8 149.0 92.2 0.64 44 11.4 12.8


These notes were also noted, since other dragons were only 142, but have heard their is an update for them

So what gives?
Based on this lean fuel flow and high HP, it appeared that this Switchback has high
altitude calibration like SkiDoos use. But I recently heard from Polaris’ Darren Hedlund
that all 09 Dragon 800’s (SP, SB and RMK) have identical calibration
Click to expand...

DTR also started a thread on HCS saying that all D8 owners should have their TPS carefully checked and calibrated incase their sleds were running lean, where in the case noted above, the 09 800 SB was lean as well. No offense to D8 owners, but most dyno #'s I read about were anywhere from 134-142 hp box stock, pretty close to our FX Nytro readings actually, so if you own a new D8 and yours dynos closer to 152 hp, I'd get it checked out if it isn't too late already....not a bash either, just a heads up ;)!

And the plot thickens..... :dunno:
 
?

Doesn't this mean the Nytro is closer to a 800cc class, and the Apex should be more in the category of sleds like the new arctic cat or Ski doo?
Or is the Nytro a cross of which?
 
I would be very careful not to line up the FX Nytro against the wrong Dragon 800. When Polaris gets the TPS and the mapping sorted out, you will stand no chance! Come on, you have got a sled in the 130 hp range (dreamometer readings excluded) and you are talking about beating a sled in the 150-160 hp range...Well, you might beat it like one time out of ten if you nail the holeshot in a short enough distance, and possibly also if the Polaris guy is an idiot when it comes to clutch setup. But otherwise, give it up and be happy that you just beat their 600...
 
That is what I was wondering? I always see the Nytro in the 600 class, but the 600 guys complain cause of the 4-stroke torque. That we sometime confuse for faster against bigger sleds, on shorter runs. Is the apex in more of the 800 Dragon's category instead, or is it the same thing; bordering between 800-1000 class?
 
Why would anyone with an FX Nytro need to be careful lining up against any other sled ? I've ran against many sleds, from 600's to F7's, Mach Z's, F1000, Apex/Attak etc, and the results were nothing to be ashamed of, so why not a D8 ? Heck, I ran a couple good working Mach Zs last year, and if it weren't for my mistake where I almost hit the one next to me, I'm quite sure I would have been beside them in 1000' easy. I had to get off the gas, hit it again AND take the rooster in the face for 1000 feet and I STILL only got beat by 1 1/2 lengths. I'll line up with a good working D8 anytime, nothing to lose being the 130 class underdog ;)!

And just to show that I don't mind losing against MUCH 'faster' sleds, here's the pic from that run against the Mach's where I got my #*$&@ handed to me... ;):D down 1 1/2 lengths in 1000' with a TERRIBLE holeshot against a couple modded sleds with 190+hp = not bad in my book :Rockon:
 

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I am sorry if my previous post was not clear, but my point is the following: Assuming that Polaris finally gets all mapping and TPS issues sorted out (so that the sled actually delivers the promised horsepower), and also assuming that the guy on the Polaris has got some kind of clue about how to set sleds up for a dragrace - then I would be very careful to challenge him with the FX Nytro, no matter how it is set up.
You are talking about beating a lighter sled with at least twenty more horsepower in a dragrace. If the above mentioned assumptions are true, then you are very likely losing this dragrace! OK, race him ten or twenty times and you will beat him sooner or later, but he will for sure walk away with more victories than you!
And again assuming that the above assumptions are true, there is nothing in the Nytro torque curve that will make you beat a twenty horsepower stronger (and lighter) sled, this is not what you are setting up your clutches for when you want to go dragracing...
 
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