570 SPortsman ECU tuning release - Page 3 - Polaris ATV Forum
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post #21 of 37 (permalink) Old 11-17-2016, 02:57 PM
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I finally got some time and installed my stage 1 tonight. Didn't get a chance to ride it but should this weekend and will report back
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post #22 of 37 (permalink) Old 11-17-2016, 07:56 PM
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Any body do a ride test on there new ecu from RVS yet?
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post #23 of 37 (permalink) Old 11-17-2016, 08:02 PM
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I ordered one also. They received it yesterday I will get it back next week and review it. I went riding for 60 miles today and doing same ride next week so will be good comparison


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How is the new ecu?
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post #24 of 37 (permalink) Old 12-05-2016, 03:54 PM
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570 SPortsman ECU tuning release

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Originally Posted by x omerta x View Post
I ordered one also. They received it yesterday I will get it back next week and review it. I went riding for 60 miles today and doing same ride next week so will be good comparison


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How is the new ecu?


Sorry for delay , its been crazy haven't had the time to take it out and when I did it's rained so haven't had it on the trails yet. I am planning this weekend again. So hope to be able to report back then.
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post #25 of 37 (permalink) Old 12-05-2016, 06:28 PM
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Thanks and eagerly a waiting.
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post #26 of 37 (permalink) Old 12-06-2016, 04:49 AM
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also waiting..

2014 Sportsman 570
bearclaw HTRs 25x8 and 25x10
QSC clutch Kit
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post #27 of 37 (permalink) Old 12-06-2016, 05:05 AM
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Originally Posted by x omerta x View Post
I ordered one also. They received it yesterday I will get it back next week and review it. I went riding for 60 miles today and doing same ride next week so will be good comparison


Sent from my iPhone using Tapatalk
How is the new ecu?


Sorry for delay , its been crazy haven't had the time to take it out and when I did it's rained so haven't had it on the trails yet. I am planning this weekend again. So hope to be able to report back then.


I also have 2 570s one that I did upgrade on and another I haven't yet so I can really do a comparison between them and not have to go off memory
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post #28 of 37 (permalink) Old 12-27-2016, 09:27 PM
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Add me to the list of people awaiting feedback...
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post #29 of 37 (permalink) Old 12-28-2016, 04:31 AM
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Sorry for the long delay. We did go to Bear Wallow back on Nov 11th. Unfortunately I've been so busy with work and life and holidays that I haven't had as chance to sit down and put my thoughts to how I feel about the tune.

I'll begin with starting and idling. My 570 feels like it starts and idles a lot easier/smoother than it did without, plus as I mentioned earlier at idle in my garage it doesn't smell as rich as the factory tune. One note about easier starting. While I had the battery disconnected to remove the ECU, I swapped the factory POS battery for a Gray Case Duracell AGM ( East Penn manufactured) which probably accounts for the easier starts.
On to riding. The first thing I noticed was an increase in throttle response from both a standing start and while rolling. In the parking lot at Bear Wallow from a stop I pinned the throttle and was immediately launched forward. No wheelies, but that was due to lack of traction. It did however spin and spin until I got out of the throttle about 40-50 yards later. On the trail from a roll there were a few times coming up to a hill that I truly let it eat. From past experience, prior to the stage 1.5 tune, doing the same thing the acceleration was acceptable and I'd gain stream heading up the hill and top out around 35-ish at the top but nothing exhilarating. This time, same hills I would let off at 45 and coasted the rest of the way to the top.
Other observations. The day we rode, the air temp was about 65. Maybe it was my lack of paying attention, but I didn't notice the cooling fan coming on as much.
Overall I am more than happy with the results. Next spring and summer will be the real test. We've got a couple day HMT trip planned in the spring, along with our annual week long trip in July. The only things I plan to change between now and then are new tires -GBC Diet Commanders are not ideal for 99% trail riding, and I'm going to order a pair of R2C air filters, one for my 570 and my wife's ETX.

Hope this helped anyone who may be on the fence about spending the money. I don't regret it in the least.
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post #30 of 37 (permalink) Old 01-01-2017, 09:42 PM
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Thank you and would love to hear more from you and others. Sound like you are very impressed!
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