Evo NA Reflash-biting the bullet

[TD Max]

Well I'm going to try the level 2.5 and see how it does. I've done everything else pretty methodically so now it is time so I rang up Ulmer and got things rolling. Time to tempt fate for shipping delays due to weather. Time to test turn around time at Evo. I'm one day away so I shipped UPS ground today. Should beat the weather and give time to ship by Thursday for Friday delivery.

Sled apart should bring awesome snow-I hope. Sounds like it's going to blow like crazy though...

 

[Yamadog]

TD you could have just painted it red that's worth 5 mph and cheaper in De-Rusto!!!

Just kidding I love what the EVO did to mine.

 

[jeffgilbert]

It will be interesting to see the difference since we have the same sleds and have both most of ulmers parts but have taken different paths to achieve a higher rpm, fueling and speed. Can't Waite to hear your results!

 

[TD Max]

Ordered thru Ulmer. Shipped on Monday arrived at Evo Tuesday and back on Wednesday. These guys are as quick as I am with my tuning!

Now if Clark and Marathon counties would get their trails opened up. I'm in the island of gray in the middle...

http://www.travelwisconsin.com/snowreport/snowmobile

 

[TD Max]

Not sure what to think about the reflash. Last time out with stock flash and PCFC it was in the 40's and the sled was running 190-210°f and would do 83 mph. from a start if you can it the limiter would babble briefly, overshift a bit and then build. Today low 30's a bit more snow, temps stayed in the 160 range. with the EVO it spikes to 9050 on a launch, runs about the same 8600 range after that and topped out at a whopping 77 mph. I guess I need to see what conditions the next outing brings.

 

[stingray719]

Not sure what to think about the reflash. Last time out with stock flash and PCFC it was in the 40's and the sled was running 190-210°f and would do 83 mph. from a start if you can it the limiter would babble briefly, overshift a bit and then build. Today low 30's a bit more snow, temps stayed in the 160 range. with the EVO it spikes to 9050 on a launch, runs about the same 8600 range after that and topped out at a whopping 77 mph. I guess I need to see what conditions the next outing brings.

Over rev on launch and low rpm is clutch issue, not picking on you but it is not the flash.

 

[TD Max]

Nothing changed in clutching between the two runs just the ECM as the conditions changed a bit with a bit more snow.

On Sunday we went for a short 25 mi ride. We had 6yr old along so I figured perfect time to break in a new gates belt. I ended up with a helmet in front of me so I really had to watch what I did. A couple times I did crack it and run to to 60 mph. RPM's seem to be pretty consistent with the 8DN which also contradicts most reports of 300 rpm loss. I did not run past about 66 mph according to GPS.

 

[cannondale27]

Nothing changed in clutching between the two runs just the ECM as the conditions changed a bit with a bit more snow.

On Sunday we went for a short 25 mi ride. We had 6yr old along so I figured perfect time to break in a new gates belt. I ended up with a helmet in front of me so I really had to watch what I did. A couple times I did crack it and run to to 60 mph. RPM's seem to be pretty consistent with the 8DN which also contradicts most reports of 300 rpm loss. I did not run past about 66 mph according to GPS.

Are you running the Gates belt now? 2-300 rpm loss is what I saw with that belt.

 

[TD Max]

I need to get some more time with the sled, but yes I went with the Gates belt and preliminary results were not much change at all. I now have a relatively fresh 8DN and a fresh Gates 4340 that I can change between.

 

[buddah]

I need to get some more time with the sled, but yes I went with the Gates belt and preliminary results were not much change at all. I now have a relatively fresh 8DN and a fresh Gates 4340 that I can change between.

I'm running the Gates belt too but then I'm too old and too "large" to worry about racing someone......I find the 2.5 flash MUCH "snappier" and I gained right at 1 mpg according to my figures......that was riding on hard, groomed snow........

 

[TD Max]

I'm running the Gates belt too but then I'm too old and too "large" to worry about racing someone......I find the 2.5 flash MUCH "snappier" and I gained right at 1 mpg according to my figures......that was riding on hard, groomed snow........

I kind of had the same snappy impression, but not enough seat time yet.

 

[murdered141]

I'm running the Gates belt too but then I'm too old and too "large" to worry about racing someone......I find the 2.5 flash MUCH "snappier" and I gained right at 1 mpg according to my figures......that was riding on hard, groomed snow........

Buddah, I thought you had the 87 octane tune, the 2.5 is 91 octane to my knowledge.

 

[NOS-PRO]

Buddah has the 87 octane mod with airbox mod and free flowing muffler

 

[TD Max]

Mine is 91 octane. Or at least it should be as it is a 2.5.

 

[murdered141]

Buddah has the 87 octane mod with airbox mod and free flowing muffler

So it is the stage 2 , 87 octane silencer tune.