What are the specs for the 900 ACE? Is it the base for the turbo 900 on sleds?

[Raven]

Just some newbie questions about the 900 ACE motor.
First, what are specs for this motor, DOHC, SOHC,2 valve or 4 valve head, type of injection?
Could not find anything on the Can-am site.
Also is this motor the base 900 ACE engine that is turbocharged used in their sleds and side by sides.

 

[Raven]

Sorry if there is any misunderstanding. I was not looking to see if the 900ACE could be turbocharged.
But I was wondering 900ACE motors in the sleds and side by side were turbocharged versions of the Ryker motor.
I just was thinking if this motor could handle the 135hp to 200hp the turbocharged motors, that the motor would not be overly stressed with the 80hp of the Ryker.
Somehow the title was changed by someone just trying to help.
Just sitting around with to much time on my hands.
Thanks

 

[KnurledNut]

 

[SportsterDoc]

Visually, it appears to be the same block.
Is the 900 ACE HP rating pushing it?
Other 900cc motors are rated higher HP, so probably not.

Are the internals the same? Not likely, as the turbo version probably has:
1. Better head gasket
2. Lower compression, perhaps as low as 8:1 versus 11:1.
3. Stronger pistons, rods, crank, etc.

 

[Raven]

Thanks guys.:clap:
Like I said I have to much time on my hands, waiting for spring.
Hydraulic lifters, no valves to adjust is a bonus.
I agree that the internals would be different, just wondered if it was the same basic motor.
Some have questioned the life span of the Ryker motor due to the high RPM it runs at which got me thinking.
Rotax builds some strong motors (ie: KTM, Aprilia)
Probably overthinking this.:banghead:
Thanks again.

 

[chris56]

there are 5 different versions of this engine - you find them here :

https://www.rotax.com/en/products/rotax-powertrains.html

 

[Raven]

Thanks Chris, that was interesting.
I haven't found any threads with anyone having problems with this motor.
Knowing Rotax it is probably over built.
8000rpm redline and 80hp does not seem overly high for a 900 triple.
Thanks everyone.

 

[SportsterDoc]

T
Some have questioned the life span of the Ryker motor due to the high RPM it runs at which got me thinking.
Rotax builds some strong motors...

Rotax is very well built, but if, due to the CVT, high speed cruising RPMs are 7,000 versus 4,500, the Rotax is going to turn the same total number of revolutions in 6 years as a motor turning 4500 RPMs will turn in 10 years. Or, in terms of mileage, 60,000 miles versus 100,000 miles.

As a comparison, my 2014 Honda CB1100 was only ~5,000 RPMs (~60% red-line) at 100 MPH (6th gear), whereas the Ryker is at least 7,600 RPMs.
My 2022 Triumph Street Twin, 900cc OHC, 4 valves per cylinder is 4,200 RPMs at 80 and 5,200 RPMs at 100

For legal cruising speeds, such as Interstate 15 in Utah, 75-80 MPH Ryker RPMs are 6,500-7,000.

The Ryker is a great roadster/hooligan/hot rod, but at 80 MPH, it is very high RPMs.

 

[SportsterDoc]

there are 5 different versions of this engine - you find them here :

https://www.rotax.com/en/products/rotax-powertrains.html

Thanks, Chris
900 ACE for road is page 3
HP is less than BRP advertised for 2020 Ryker (82 HP @ 8,000 RPM)

Be very interesting to know internal differences between marine, snow and road.

 

[SportsterDoc]

Thanks guys.:clap:
Hydraulic lifters, no valves to adjust is a bonus...

Definitely, as adjusting valves on my CB1100 or Steet Twin is a major project.

At the end of this year, when the Street Twin has ~6 months of 2 year warranty left and probably 14K miles, I am planning on trading it for a new Yamaha XT250.

It will still allow me freedom, at age 76+ and one of my local grandsons can work on it with me (valve adjustments are super simple), then inherit it when it is time to forgo riding (although I could borrow it back!).

As much as I am enjoying the Triumph and plan to take it early summer to the one place where only the Ryker (of 19 M/C) went, I am looking forward to a simpler bike, more akin to what I rode in sixties and seventies.

No immobilizer
No antilock brakes
No traction control
Parts are more readily available, at much less than Triumph or Moto Guzzi

 

[EchoVictor]

My initial thought is that Can-Am doesn't install the turbo motor into the Ryker due to Emissions requirements.

Digging deeper, I'm sure of it.

<engineer nerd hat on>

Looking at the EPA websites, there are different HC (hydrocarbons) and CO (carbon monoxide) requirements depending on whether a vehicle is on-road or off-road.



Running the math, you can see that the on-road reqiurement is in grams per mile, where the off-road is grams per kilowatt-hour.

I plugged in the power of both ACE motors, and did the calculations at both 60 km/h and 100 km/h

As you can see in the graphic, the allowed emissions for on-road are much more stringent than for off-road.
My thought is that I'm sure Bombardier COULD put the turbo motor into a Ryker, but they don't want to take the hit to their Corporate Average Emissions for something that wouldn't sell enough units to justify.

<engineer nerd hat off>

Later,
EV

P.S. I work for GM, and used to do this stuff on the car side. Dealing with the EPA is not fun.

 

[Raven]

Thanks, Chris
900 ACE for road is page 3
HP is less than BRP advertised for 2020 Ryker (82 HP @ 8,000 RPM)

Be very interesting to know internal differences between marine, snow and road.

That would interesting to see just what the differences are?opcorn:

 

[sKiZo]

MANY changes made to beef up the standard drive train for turbo, and it'd end up costing major bucks to make it happen on a Ryker.

PS - a lot of the changes aren't all that apparent. Lots of otherwise identical looking stock parts were beefed up or alloyed differently to handle the additional power and stress.

 

[spyderider1]

MANY changes made to beef up the standard drive train for turbo, and it'd end up costing major bucks to make it happen on a Ryker.

PS - a lot of the changes aren't all that apparent. Lots of otherwise identical looking stock parts were beefed up or alloyed differently to handle the additional power and stress.

Yeah, when the Turbo came out for Ski Doo a couple of years ago the same question was raised. The engine went from 90 hp to 130 and yes many components are different, namely the crank and pistons. I have the lesser engine in my snowmobile and it has plenty of giddyup for this guy. Results may vary.

 

[sKiZo]

Long as we're kinda sorta on the topic of snowmobile motors?

The Ryker calls for 5-40 oil which may be fine in the winter wonderland but seems thin for a hot August afternoon on a highway cruise. Any experimentation with viscosity?

 

[Markubis]

The number 5 is the viscosity in cold weather. The 40 is when it's up to temperature.

 

[Raven]

A lot of the new cars use 0W20