MCX and other power up for sidewinder reviews thread.

[Kibbels]

I put a couple hundred deep mountain km on my winder this weekend flashed my sled to Evo stage 4 the second day it ran well very happy.

Hey that's great to hear... with stage 4 did you notice the difference?

 

[canuck5]

Yea big time sled pulls hard 3feet plus the last 3 days it was awesome runs like stock throttle response but way more power at the top.


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[canuck5]

I still have to figure out clutching tho was over clutched on primary weight target rpm on there tune is 9250rpm in that deep heavy snow the daltons I was running 73.6gram base weight was still to much only getting 8500


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[Tuesday]

I rode canuck5 SW last weekend with stage 4 evo installed. First off the handling as many have mention has been drastically improved. They have come a long ways in getting a 4s balanced in a chassis that didnt make you feel like are constantly fighting the weight of beast. Power delivery is super smooth and quick. I was not on the sled 2 minutes before I was looking for something to jump. Found a decent pile of snow and hit it with ease. Just roll on the throttle and blipped off the jump with little effort. Now the power upgrade does not feel like a nytro pulling 17lbs boost but it is pulling hard. The stock skid seemed to manage the power well. Having to run a skid that generates massive ski pressure or reduce ski lift gets tiresome in the end. Hope this skid will meet the needs. Rode a new 850 as well and it was also enjoyable. Good power, easy to throw around, bit squirly in tighter spots, as I am guessing from not having too much seat time on it, that in tight spots had a hard time just getting it to go straight haha. After riding them back to back, they felt pretty close in ability to handle, weight difference was marginal, power increase on the sw was more than noticeable.

I wonder what the weight of a 163 doo with e start and turbo is compared to the SW. I bet the numbers are closer than most would think and in the past the 4s just keep on running.

 

[Lund]

Out of curiosity, how much HP do you honestly feel the power up brings?
I can tell you this much from riding a turbo Nytro since 2010. My Nytro running at its very lowest setting 10psi makes an honest 205hp, i run at 10psi often because i usually ride with the wife and at times i will crank up to 12 or 14psi. 12psi will give me an extra 14hp and 14psi an extra 28hp, equivalent to 233hp.
My point is i know exactly what 250-260hp sled feel like because i have taken the Nytro there plenty of times by cranking the boost to 18psi for 260hp.
The thing is at 18psi it is not the same Nytro that is at 10psi, there is a MASSIVE F'N DIFFERENCE. From a hard pulling turbo at 10psi to NEVER mash the throttle cause you will wheelie out and loose it at 18psi.
Asking cause i'm interested in it for possible upgrade next season on my SW. If 250hp is what your getting i would expect a very different sled compared to stock through out the entire throttle, 250hp is BIG and not just slightly pulling harder in the top end.

 

[canuck5]

It's significant, I ran my nytro at 18-20 psi for the last 8 years in the 280hp plus range so I know what your saying, the stock sidewinder feels good but I found it didn't get up on plane and accelerate when climbing with the power up it does I'll call it the screaming effect you hear on that engine when that full load boost hits. I wasn't pulling the full rpm as I was playing with clutching however the power up is defiantly worth it in my mind all the benefits of stock sidewinder with more jam. I still noticed the difference and sled was only pulling 8500rpm target is 9250 on power up.


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[Lund]

It's significant, I ran my nytro at 18-20 psi for the last 8 years in the 280hp plus range so I know what your saying, the stock sidewinder feels good but I found it didn't get up on plane and accelerate when climbing with the power up it does I'll call it the screaming effect you hear on that engine when that full load boost hits. I wasn't pulling the full rpm as I was playing with clutching however the power up is defiantly worth it in my mind all the benefits of stock sidewinder with more jam. I still noticed the difference and sled was only pulling 8500rpm target is 9250 on power up.


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Ok, please post back once you have the RPM sorted out. Like i said i'm very interested. Are you running an O2 gauge?

 

[canuck5]

I've got nothing right now as it literally was reflashed in parking lot last weekend, probably add boost gauge not sure about O2 sensor tho we have endless miles on these boosted 4 strokes and I've yet to hear of a lean burn down my o2 gauges always ended up not working and on top of that with a flashed sled I can't actually make a change like on say the boost it box these are stand alone.


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[Lund]

I've got nothing right now as it literally was reflashed in parking lot last weekend, probably add boost gauge not sure about O2 sensor tho we have endless miles on these boosted 4 strokes and I've yet to hear of a lean burn down my o2 gauges always ended up not working and on top of that with a flashed sled I can't actually make a change like on say the boost it box these are stand alone.


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We have an O2 gauge on one of RS Sindwinder, our test mule. We have done numerous runs with it and numbers are constant in the 1250 range. So yes its rich, lots of room to improve in tuning.
I like the O2 sensor and gauge simply because its your first line of defence if something was to go sideways. It gives you heads up that something is wrong before disaster strikes. Example an injector leans out, you would never know till she burns down. The O2 sensor will show the lean condition and warn you something is wrong.
O2 sensor are good as long as you avoid leaded fuels and mixed fuels(oil), if you use these it will plug the sensor up and it will quit working in little time.
Using premium pump fuel like 91 unleaded, won't effect it.

 

[Andrew.renegade1000]

Let's see some videos of this evo tuned SW


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[06 Dragon]

How much power is the mcx power up box supppsed to add? Can not seem to find any information on it.

 

[06 Dragon]

Found more info on it on their Swedish site. Looks like it is used on the stage 1 and 2 set ups.