2020 running issues

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
Looking for info on guys running the 2020 only!! Has anyone had issues with the sled sounding like it drops a cylinder from engagement to around 5600rpm, then run perfect after that rpm? boosted or stock. Reeds are good, tps is unplugged, fresh plugs, exhaust valves adjusted properly. Compression is 120/125 on a good gauge. Has been that compression all year, tested about 4 time throughout the year.

Current set up:
2020 hardcore 154" 1000+ miles
Silber turbo intercooled kit (recent flash)
Ran 3psi through break in 8psi since then
50/50 premium/av
Currently running around 2300ft run same at 7K+
Cycles and sleds clutch kit
Boost-T
BOV
Afr was good at wot, sensors been shot for the last 500 miles
BR9EYA plugs as per suggested by silber
Running 8450rpm.
 

Shitfly

Active VIP Member
Joined
Nov 6, 2008
Messages
479
Reaction score
547
Location
Central, AB
Pull apart all the electrical connectors, ensure they're dry and not showing signs of being corroded (clean em' if so), and give them all some dielectric grease before putting them all back together. Had my sled act up like it was going on one jug, was suggested the same, has been fine since. Hope that helps
 

mountianguy

Active VIP Member
Joined
Apr 26, 2009
Messages
564
Reaction score
694
Location
stony plain
Looking for info on guys running the 2020 only!! Has anyone had issues with the sled sounding like it drops a cylinder from engagement to around 5600rpm, then run perfect after that rpm? boosted or stock. Reeds are good, tps is unplugged, fresh plugs, exhaust valves adjusted properly. Compression is 120/125 on a good gauge. Has been that compression all year, tested about 4 time throughout the year.

Current set up:
2020 hardcore 154" 1000+ miles
Silber turbo intercooled kit (recent flash)
Ran 3psi through break in 8psi since then
50/50 premium/av
Currently running around 2300ft run same at 7K+
Cycles and sleds clutch kit
Boost-T
BOV
Afr was good at wot, sensors been shot for the last 500 miles
BR9EYA plugs as per suggested by silber
Running 8450rpm.
I can say my 20 does not do that
 

Allseasons

Active VIP Member
Joined
Jan 21, 2014
Messages
506
Reaction score
1,058
Location
Rocky
That is not enough octane at low elevation, any elevation at 8psi. Mine was detonating and going into limp at 50/50. And your 8450 is way to high. Get that rpm down 8200 or less.
id venture to say it’s leaning way out till secondary injectors start to spray
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
I have had all the connections apart multiple times and die electric greased, didn't seem too help in my case.
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
That is not enough octane at low elevation, any elevation at 8psi. Mine was detonating and going into limp at 50/50. And your 8450 is way to high. Get that rpm down 8200 or less.
id venture to say it’s leaning way out till secondary injectors start to spray
It's not an octane issue, it's enough octane. only time I had det issues is with a bad tune I had, also with boost can run them higher rpm, but besides the fact that's no help or anything related to the issue, as the mid to top range are good.
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
Also no secondary injectors, and if there was there is no way at 5600 rpm that it's building enough boost or any boost at all to be into the secondary injectors
 

roughriders

Active member
Joined
Nov 12, 2009
Messages
112
Reaction score
140
Location
heading west
Looking for info on guys running the 2020 only!! Has anyone had issues with the sled sounding like it drops a cylinder from engagement to around 5600rpm, then run perfect after that rpm? boosted or stock. Reeds are good, tps is unplugged, fresh plugs, exhaust valves adjusted properly. Compression is 120/125 on a good gauge. Has been that compression all year, tested about 4 time throughout the year.

Current set up:
2020 hardcore 154" 1000+ miles
Silber turbo intercooled kit (recent flash)
Ran 3psi through break in 8psi since then
50/50 premium/av
Currently running around 2300ft run same at 7K+
Cycles and sleds clutch kit
Boost-T
BOV
Afr was good at wot, sensors been shot for the last 500 miles
BR9EYA plugs as per suggested by silber
Running 8450rpm.


if you punch it does it go or keep stuttering? when it seems like its on one cylinder is it just when slowly getting into throttle?
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
If you punch it, it clears up after a little bog. Seems to do it mostly when going down the trail around 35 mph and less. If your working it hard off and on the the throttle it's good. It's the worst at about 10 mph
 

roughriders

Active member
Joined
Nov 12, 2009
Messages
112
Reaction score
140
Location
heading west
mines similar but seems to clear off at 5100. im assuming it s mapping. curious what track speed your seeing at 8psi.
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
mines similar but seems to clear off at 5100. im assuming it s mapping. curious what track speed your seeing at 8psi.
I wonder if it's there tune or what. I'm just starting to grab at any ideas because I've talked to guys that are running 20's with the silber and they say they run fine. But mines not. And as for track speed I never did look at speed on a good pull, and on the flat I don't try hold it for long as it will snap the belts in half. I know in waist deep snow on the flats it will put it on the bumper at 50mph if you crack on it
 

Got boost want snow

Active VIP Member
Joined
Aug 16, 2010
Messages
1,226
Reaction score
2,408
Location
Alberta
I know you said only 20's but I know of 2 18's that we're doing similar things. Turned out to be the injectors it to cat quite a while to find them.
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
I know you said only 20's but I know of 2 18's that we're doing similar things. Turned out to be the injectors it to cat quite a while to find them.
Thanks, I have heard a few people mention injectors, I am leaning that direction. See if I can get them on warranty, if not there only $100 a pop so will throw a new set in this summer anyways
 

roughriders

Active member
Joined
Nov 12, 2009
Messages
112
Reaction score
140
Location
heading west
Thanks, I have heard a few people mention injectors, I am leaning that direction. See if I can get them on warranty, if not there only $100 a pop so will throw a new set in this summer anyways

never really thought it might be injectors. did you run your sled stock? i did not, so i dont know if was caused by the kit or not
 

troff18

Member
Joined
May 15, 2010
Messages
16
Reaction score
4
Location
Revy
never really thought it might be injectors. did you run your sled stock? i did not, so i dont know if was caused by the kit or not
I never ran mine stock either, so not sure if it was the kit or not, the tune I ran in November was horrible, couldn't even drive it down the trail. The tune I just put in a month ago is better. But the bottom end has that issue still. I have noticed that when I pull my pipe the y-pipe is pretty wet. Have you noticed with yours if the air box is getting excessive oil in it from the turbo?
 

teamrallytrash

New member
Joined
Feb 2, 2021
Messages
2
Reaction score
0
Location
utah
anyone come up with anything new on this issue? My 2020 Alpha mountain cat has had a weird stutter from time to time between engagement and 5500 however i had an 18 mc and a 19 alpha and they run flawless! my buddy has a 2020 hardcore Alpha that has a horrible bog between engagement and 6K! it will almost toss you over the bars
 

tex78

Active VIP Member
Joined
Feb 5, 2010
Messages
17,540
Reaction score
16,950
Location
DA Moose B.C
anyone come up with anything new on this issue? My 2020 Alpha mountain cat has had a weird stutter from time to time between engagement and 5500 however i had an 18 mc and a 19 alpha and they run flawless! my buddy has a 2020 hardcore Alpha that has a horrible bog between engagement and 6K! it will almost toss you over the bars
Air boxes sealed up good in the nose part??

Any water is the air box square??
 

teamrallytrash

New member
Joined
Feb 2, 2021
Messages
2
Reaction score
0
Location
utah
airbox sealed up tight. rode some deep snow sat pulled hood immediately when i got home and intake was bone dry
 
Top Bottom