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Was the Doo running Hurricane tune?

The closed loop is obviously auto tuning the fuel to match Hurricanes target AFR for the 300 header tune. Without closed loop my sled would be running lean. I already have the fuel pressure raised from stock 43 psi key on to 48 psi key on. From what I have seen on my logs, the closed loop will...

As my data log shows my sled makes just over 19 psi boost as well...lol....just 30 mph slower then you "Mach Run Masters" :) Just the 300hp header tune, no wastegate or turbo mods on my SW as well.

Here's one of my data logs...lol...no where near the speeds Fleecer or other members have run. My sled can easily run into the mid 120s on the GPS where it runs out of gear, which I am surprised with as is has a 141 x 1.75" Back Country track! Hurricane 300 Header tune I am pretty happy with its...

Wow!!!! I am not surprised that you converted to Yamaha clutches. I have previously said that if I owned a Cat 998 the first thing I would do is change it over to Yamaha clutches even before a tune...great minds think alike...Great work!!

My 7 year old Gap Flasher blue tooth packed in and I am waiting for my new one. My sled seems to be running rich as gas mileage has dropped and side panel is getting black soot. AFRS displayed look good but I suspect the O2 sensor is inaccurate. Can I select the close loop off on my flasher...

Old thread revival:) My 2019 SW has been Hurricane tuned since new as well as it has had a "full meal deal" Hurricane Gap Flasher load...basically everything you can add to your tune. My flasher got melted when I first installed my header[my fault] many years ago but continued to work flawlessly...

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Do NOT run your stock SW with a high flow muffler! You need a tune that is catered to the higher flow exhaust and safely allows for the higher flow through timing and fuel adjustments.

Most likely starter solenoid corroded and stuck engaged.

This is why I think closed loop is essential on a tuned 998s.

We have 4 SWs in our group that ride regularly every week, one is totally stock, 1 Hurricane SM tuned, 1 Hurricane PM tuned, and mine that is Hurricane Header PM tuned. All these sleds are approaching or over 10,000 miles and tuned since new. We just did a 200 mile ride on empty hard pack fresh...

It seems we all hope, speculate, and expect more from the manufacturers then they are ever willing to deliver. A couple prime examples are from BRP. Everyone expected a HO version of Ski Doos 1200....it never happened...when the Mach Z was announced the Ski Doo faithful were foaming at the mouth...

Hopefully what ever engine Cat comes up with it won't sound as bad as the Suzuki 1100!!!! Absolutely worst sounding sled engine ever!

Cat, at least recently, has always built and they also have claimed their flagship sled to be the fastest...surely they are working on something going forward.

The 144" Ice Cobra as a 2.52 pitch on the Camso's specs says its a 2 ply...all the 2.86 pitch length Ice Cobras say they are 1 ply. I really don't expect the Ice Cobra to be as durable as the Back Country has been as it has exceeded all my expectations. I never expected a 1 ply 1 3/4" track to...

So... I have had a Back Country 141 x 1.75" Track on my 2019 Tuned SW since it was new, lots of miles on this track. In NWO we typically don't run studs. I have had for many years a 144 2 ply 1.6 Ice Cobra track and a new drive shaft with 10 x 2.52" drivers ready to convert this sled to a 144...