New flash

[AKSNOWRIDER]

well that seems like a pretty easy fix to the valves staying closed too long prob, or are other issues raised by doing this, and are you running with the hoses plugged?

sorry for getting off of the original topic

my valves are the way polaris sent them other then whatever springs called for by the update....personally ..there is to many of these sleds ripping out there for me to think the valves need modded(I come from the automotive world and all the emissions stuff(and 95% of the emissions stuff does not hurt performance)polaris didnt spend all the money they did to put this on there for no reason(yes it is to help emissions )but..I spent alot of time trying to make my edge bigblock perfect by playing with springs and shims on the valves..what polaris had worked as good as anything I came up with..now..if someone finds 20 hp..and unbeatable performance increase..yeah I will take a look at it..but I doubt they will....I am working on something different to pick up cheap hp...hopefully it pans out...

 

[R44guy]

PCV is the low cost Answer

I truly believe that Polaris's hands are pretty well tied with maps that have to be lean in the midrange to meet epa emissions and that they have delayed the power valves to open until higher rpm and then they richen up the fuel after the valves are opened.

The PCV has made such a huge difference in how my sled runs it is awesome now. Warranty or not I can not go back to a stock map! The increased power, reliability, drivability and runnability are so much better with the PCV.

I know every one has a angle that they should not have to spend the money to buy a pcv and I agree. But if you dont and you melt down outside of warranty coverage it will cost much more then $369.

The PCV can be removed in less than 5 minutes or less and after removed will not void your warranty if your VR melts it down. Obviously there are still other issues than Polaris's maps but pay less now and have fun and ride or rightfully complain and live with the issues until later and then pay more?

 

[Flange509]

Ran the new flash this weekend, 08'D8 with update.Before this flash the sled ran good but felt fat in low rpm's and would backfire when starting once in a while, the new flash has cleaned it up, feels smoother when running 30-50 down the trail but it feels much better in the trees just cleaner and a little snapper.Top end stayed about the same,8200 rpm's but low speed and starting is much better.

 

[Mag]

Finally got a good test of the new map today. Starts better but sometimes it still acts like it's flooded, if you hold the flipper too the bar it starts right up. I picked up about 150 rpm over the last flash but I think that had to do with the over-sensitive det sensor. I could still get the det sensor to trip if I tried to go wfo from about 6000 rpm. I adjusted my fuel controller and only tripped the sensor one time after that but I was also at 8700 rpm. Over all way better than the last flash.

My suggestion for anyone that has a burble, mis, hard start or loss of rpm's is get the new flash and buy a fuel controller.

 

[thefullmonte]

could the exhaust valves be drilled/machined to use cylinder pressure instead of the solenoids, or put the older style exhaust valves in? Or are the new cylinders not compatible with something like that? just putting it out there, could be way off base

Sorry we are getting a little off topic here. This is a thread about capping the exhaust valves. Feel free to bring that back up.
Mine are going to be capped. Running the PC V with Autotune. I'm expecting to find huge gains off throttle and through the mid range. Should be able to add even more fuel than they are now. I'm mainly doing this as a piece of mind to reduce engine heat around the exhaust port though. Polaris has poor cooling around the exhaust port to start with and holding the valves closed only retains more heat. Plus I don't agree with having the valves closed until 7200rpm. Basically running a port height the size of a 700.
I'm not saying my way is the right way. Just from my research and looking carefully at the motor design etc I'm convinced this is the way I want to do it.

 

[allblowdup]

I am running the pciii with the latest from Jim and SLP.(I have ran both). I raun with my exhaust valve vent lines plugged. They both run pretty much the same, absolutely perfect. I went 100 mi yesterday and still had fuel left and the sled never missed a beat. With my ethenol wires plugged in I will get the det light on after about 1/4 mile of WOT breaking trail. If I unplug them it never come on but I loose about 50 rpm. That means that I am within 10% of perfect so I will add 4 or five percent and I am good to go. Don't think that I will get the new reflash as the sled just runs to good right now. Once I have confirmation that the det sensor is too sensitive and is changed in the new flash I might.

 

[CO 2.0]

I rode the new flash Sat at 9-11K ft. Mid range is much cleaner. My Top end seems to be down 100-200rpms over the last flash. Felt like it was running fatter up top... No cold start flooding with this new flash.

 

[Snow_Crazed_Canuck]

New Flash Works!!!

I just got the most recent flash done on my 2010 D8 Switchback today. I took the sled out for a 30 mile run and it never missed a beat. It ran smooth right from engagement through to the top end. I tried everything; cruising at low speeds, quick throttle burps, hammering it to the handlebar, etc. and it didn't faulter once. It even idles better. I was running premium gas and the outside temp was -1 Celsius (~30 F). The top rpm on the gauge registered 8400 rpm. I have no mods on my sled.

This is me tipping my hat to Polaris for taking an absolute bombardment of criticism, then stepping up to the plate and delivering a fix that truly works. This sled flat out rips now that it is running properly. I had all the symptoms before the update: mid-range dead spot, detenation sensor going off, backfiring periodically during start-up, dead spot when letting off of the throttle during decceleration (causing the sled to dive hard...not cool), hesitation during quick throttle burps... The new map (flash) made it all go away.

If you haven't got the new flash yet, or you are on the fence about it, GET IT!!! There is a lot of talk on this thread about the PCIII and V fix, but if you haven't already bought one of these, save yourself $400 and get the new flash first. If it works on your sled like it did on mine, you won't be disappointed.

I'm pumped, sledding just became fun again

Keep the comments coming, Polaris fans need some good news!

 

[deepdiver]

In order fpr a dealer to install the new map or as I like to call it ...the new patch, they have to have Digital Wrench Ver 3.2
Ver. 3.1 will not be able to install it...why I have no idea....some dealers are unaware of the map as it was just put into "team tips" and some have not seen the new version of Dig. wrench yet. Come on Polaris..communicate, communicate, communicate!!!!

 

[800drgnplt]

I just got the most recent flash done on my 2010 D8 Switchback today. I took the sled out for a 30 mile run and it never missed a beat. It ran smooth right from engagement through to the top end. I tried everything; cruising at low speeds, quick throttle burps, hammering it to the handlebar, etc. and it didn't faulter once. It even idles better. I was running premium gas and the outside temp was -1 Celsius (~30 F). The top rpm on the gauge registered 8400 rpm. I have no mods on my sled.

This is me tipping my hat to Polaris for taking an absolute bombardment of criticism, then stepping up to the plate and delivering a fix that truly works. This sled flat out rips now that it is running properly. I had all the symptoms before the update: mid-range dead spot, detenation sensor going off, backfiring periodically during start-up, dead spot when letting off of the throttle during decceleration (causing the sled to dive hard...not cool), hesitation during quick throttle burps... The new map (flash) made it all go away.

If you haven't got the new flash yet, or you are on the fence about it, GET IT!!! There is a lot of talk on this thread about the PCIII and V fix, but if you haven't already bought one of these, save yourself $400 and get the new flash first. If it works on your sled like it did on mine, you won't be disappointed.

I'm pumped, sledding just became fun again

Keep the comments coming, Polaris fans need some good news!

I am glad to hear you have had such good luck with the new flash, wish I could say the same! I had it installed this morning and rode about 30 miles this afternoon. I am pleased with the changes except for the mid-range burp. I still have the darn stumble, if I let off of the throttle and then punch it hard, it will still stumble just like before. On the top-end I am getting up to 8350 as opposed to 78-7900 rpm with the previous flash. It started really hard once, but then never did it again! Now, this is on a 2009 D8 Switchback and I only have 200 miles on it. I am very pleased with the way it is running EXCEPT for the stumble.

 

[Snow_Crazed_Canuck]

Fuel Quality

I am glad to hear you have had such good luck with the new flash, wish I could say the same! I had it installed this morning and rode about 30 miles this afternoon. I am pleased with the changes except for the mid-range burp. I still have the darn stumble, if I let off of the throttle and then punch it hard, it will still stumble just like before. On the top-end I am getting up to 8350 as opposed to 78-7900 rpm with the previous flash. It started really hard once, but then never did it again! Now, this is on a 2009 D8 Switchback and I only have 200 miles on it. I am very pleased with the way it is running EXCEPT for the stumble.

My dealer told me today that the mid-range stumble can be partially due to bad fuel quality. I buy premium fuel from Esso or Shell. I have been told by three separate polaris dealers and automobile dealers to stay away from Co-op, Mohawk, Husky, and small one-off gas stations (Fas-Gas, etc.), as these tend to have poor quality fuel (so i'm told). Try running a good quality premium gas with some octane boost to see if the stumble clears up.

My detonation sensor was going off like crazy at first. I called a dealer to get some info and the first thing they asked was what fuel I was running. I told them Co-op regular; the guy grunted/lauged over the phone and told me that is a bad idea. I was suspicious at first so I called some more dealers and all had the same to say about the above fuel providers. I ran that tank through, then put shell premium in and never had another problem with the detonation sensor. However, i still had a host of other issues as i mentioned in my previous post. Thankfully the new flash fixed that up.

Also, the dealer told me that these 800 motors really start to break-in well around 300 miles. Maybe yours will start to come alive more with a few more rides.

Good luck

 

[800drgnplt]

My dealer told me today that the mid-range stumble can be partially due to bad fuel quality. I buy premium fuel from Esso or Shell. I have been told by three separate polaris dealers and automobile dealers to stay away from Co-op, Mohawk, Husky, and small one-off gas stations (Fas-Gas, etc.), as these tend to have poor quality fuel (so i'm told). Try running a good quality premium gas with some octane boost to see if the stumble clears up.

My detonation sensor was going off like crazy at first. I called a dealer to get some info and the first thing they asked was what fuel I was running. I told them Co-op regular; the guy grunted/lauged over the phone and told me that is a bad idea. I was suspicious at first so I called some more dealers and all had the same to say about the above fuel providers. I ran that tank through, then put shell premium in and never had another problem with the detonation sensor. However, i still had a host of other issues as i mentioned in my previous post. Thankfully the new flash fixed that up.

Also, the dealer told me that these 800 motors really start to break-in well around 300 miles. Maybe yours will start to come alive more with a few more rides.

Good luck

I'm all about the fuel, I am running premium (91 octane) that is ethanol-free. I live in MN and as I understand, if you buy gas at any old gas station, no matter what grade, it will have ethanol. I started buying my gas from an oil company that specializes in high quality fuels. I have heard others, including my dealer tell me to not get real worried until I have around 3-500 miles on it, but I'm not sure I believe that. I guess I will just keep putting more miles on and see if it improves! Thanks for the suggestions.

 

[Polar Express]

I spoke with my dealer last week, (I know, that's old news with regards to this thread...) and he told me Polaris was testing a new map in 3 regional areas. If the testing worked, then they had to submit it to the EPA for approval, and the new map would likely be available to the masses in 4-6 months, but he would let me know if something happened faster.

So far, he's been good with communication, and his explanation actually makes sense to me. Perhaps those that have access to the 'newest flash' are in the testing areas????

It's Tuesday now, so he'll be open today, I should make a phone call....

PE

 

[karnedge]

My dealer told me today that the mid-range stumble can be partially due to bad fuel quality. I buy premium fuel from Esso or Shell. I have been told by three separate polaris dealers and automobile dealers to stay away from Co-op, Mohawk, Husky, and small one-off gas stations (Fas-Gas, etc.), as these tend to have poor quality fuel (so i'm told). Try running a good quality premium gas with some octane boost to see if the stumble clears up.


so why is it that polaris says it requires 91? i think running better fuel does help and makes things run better..but tell me why some guys run cheap gas (marked/farm) and they run fine? i have 3 old sleds for my kids and if i put gas from my 2 newer sleds in them they run like junk..thats sounds like the old story of race oil...it will make your sled faster..really...NOT! polaris needs to fix it not pass the buck. i run 91 good feul..nothing more nothing less

 

[hilinerider]

flash team tip number

anybody have the team tip number for the new flash so if i call my dealer and he knows nothing i can have him look it up???

 

[AKSNOWRIDER]

anybody have the team tip number for the new flash so if i call my dealer and he knows nothing i can have him look it up???

hilner, have your dealer go to the digital wrench download page..click on new downloads..the flash is part of the 3.2 update that is listed for 1/11/10..I havent seen a team tip for the update yet....

 

[Super Dave3]

anybody have the team tip number for the new flash so if i call my dealer and he knows nothing i can have him look it up???

Team Tip S-10-01-03

 

[diamonddave]

so why is it that polaris says it requires 91? i think running better fuel does help and makes things run better..but tell me why some guys run cheap gas (marked/farm) and they run fine? i have 3 old sleds for my kids and if i put gas from my 2 newer sleds in them they run like junk..thats sounds like the old story of race oil...it will make your sled faster..really...NOT! polaris needs to fix it not pass the buck. i run 91 good feul..nothing more nothing less

Because a 1-2 psi difference in fuel pressure can equal almost a 7-9% in total fuel delivery difference between the same model sleds. Now throw in different altitudes, track lengths, gearing, clutching that affect the load on the motor, differences in regional fuel's and additives, the fact that alot of these sleds are no longer running factory pistons, heads, etc. AND the fact that the Mid-Range is scary lean...it's real easy to see (in my eyes anyway) why some sleds will run okay while others may not.

Some of the sleds you say run okay regardless of type of fuel, may be so close to the edge of poor runnability and never know it while others are just enough over the line to cause poor runnability. It's a very fine line.

 

[hilinerider]

thanks for the team tip numbers, now i have em on the right page and will have the flash done tomorrow

 

[TIM]

don't do the new flash. I was sidehilling accross a slope when the engine cut out and died. I was able to make a oh**** save. However there was a few guys this weekend who didn't make the o**** save and there sleds tumbled down the hill. HAving a motor cut out is not a good thing. I am going back to the 09 map. My dealer actually called me up and told me not to run the new flash, but i tried it anyway. This is in north idaho 3000-6000 feet riding elevation.

tim