Sport would be the closest to the cable throttle imo.

 

from riding a 600 and a 900, sport mode felt close to the cable feel but still a bit sluggish. Prob get used to it after a while but i prefer the cable setup over the fly by wire. Simpler as well, less to break down.

 

My "old" 2011 unit now sounds like a good deal. Sometimes I wonder if the engineers at BRP have gotten too carried away with the whiz-bang deal. (and a lot of other engineers too) Wish they'd offer a sled /engine combo that you didn't need a computer and degree in rocket science to get going and get back home when the thing goes nuts on ya'.

 

This surprises me. I would expect that cable throttle to be most similar to Standard mode.

 

This surprises me. I would expect that cable throttle to be most similar to Standard mode.

Why would you expect that?

 

I would expect that cable throttle to be most similar to Standard mode.

This is what I recall reading/hearing.

Standard = Common = Cable Throttle

I like ITC. I use Standard for most of the trails I ride. I do enjoy finding sections of trail were Sport mode is a good match. I use ECO mode for loading/unloading the trailer and also in the tight twisties.

 

With cable you have instant response, when thumb moves the throttle plate moves.
With the Itc your thumb moves, signal goes to Ecm, then It gauges what you want and then sends the signal to the throttle body.
This all takes time and makes for a sluggish response. You get used to it and start applying throttle ahead of time to compensate for the lag.
Even in sport mode.
Sadly this is the way of the future in ski doo.

 

With cable you have instant response, when thumb moves the throttle plate moves.
With the Itc your thumb moves, signal goes to Ecm, then It gauges what you want and then sends the signal to the throttle body.
This all takes time and makes for a sluggish response. You get used to it and start applying throttle ahead of time to compensate for the lag.
Even in sport mode.
Sadly this is the way of the future in ski doo.

?????? ok

 

Any lag you are noticing is just the low power of the 600 ACE anyway. The electronics are much faster than you could ever perceive.

 

With cable you have instant response, when thumb moves the throttle plate moves.
With the Itc your thumb moves, signal goes to Ecm, then It gauges what you want and then sends the signal to the throttle body.
This all takes time and makes for a sluggish response. You get used to it and start applying throttle ahead of time to compensate for the lag.
Even in sport mode.
Sadly this is the way of the future in ski doo.

I completely disagree with this.

 

I figured that Sport mode was an enhanced mode, meant for high performance; Standard would be meant for most applications and that would make most sense for a configuration with only one option, such as a cable setup

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With cable you have instant response, when thumb moves the throttle plate moves.
With the Itc your thumb moves, signal goes to Ecm, then It gauges what you want and then sends the signal to the throttle body.
This all takes time and makes for a sluggish response. You get used to it and start applying throttle ahead of time to compensate for the lag.
Even in sport mode.
Sadly this is the way of the future in ski doo.

Tundra 300, have you ridden a sled with iTC?

You seem to understand the system but not the programming possibilities associated with the three mode options.

When you move the flipper, the ECM sees that signal (voltage change) in a tiny fraction of a second. The ECM then looks at the mode value (store in RAM memory) and uses it to determine (through a map) what increment it should provide to the throttle plate driver. Again, tiny fractions of a second and it can account for any lag in it's processing by "boosting" the output to the throttle plate driver.

The ECM is a computer and can process internal instructions (program) faster that you can blink. Try moving your thumb faster than you can blink.

In ECO mode the input to the throttle driver is intentionally muted. It is purposely delayed. And even if you hold the flipper at max, the ECM will not fully open the throttle plate.

In Sport Mode the opposite is true. The input to the throttle driver is intentionally amplified. Meaning it overdrives the throttle driver so you get a exaggerated essentially "superhuman response". It could drive the throttle plate faster than you could operate it with a cable if the programmers wanted it to. BRP decides what the feel of the acceleration should be and IMO they nailed it.

IMO Standard mode is the linear response or maybe it leans a little toward Sport to insure no lag feeling. I am not sure if it holds back WOT.

This is not a sad story for the future.

Just think, if steering was controlled by wire, darting could be almost completely eliminated.

If suspension was designed to use computer controlled electronic damping a sled could ride like a magic carpet.

Yes they would cost more and would be more expensive to fix but hey, when has that stopped companies from developing the next big thing?

 

On modern 2 and 4 strokes with EFI, opening the throttle plate is not the only thing that has to happen to get the rpms off idle.

The TPS (throttle position sensor) outputs to the ECM and it in turn used several inputs (air temp, coolant temp, manifold absolute pressure, etc) and picks a fuel trim value from a map and drives the injector coil.

I think most people like the response of the modern EFI better than a carb.

Again, be glad not sad about computers/electronics in recreational vehicles.

 

I like the idea of computer valved shocks! I bet they are working on that already. Might need a "mogul scanning radar" in the front of the sled to identify and classify upcoming bumps. (And keep your riding buddy's back side warm if you tailgate close enough)

I have always dreamed of a computer controlled clutch shift... you develop your own personal programs / modes.

That'd all be cool, except if the sled costs $20k!

But I'll go against the grain here and back up Tundra 300: some things - "primary" controls (throttle, steering, and brake) I prefer to have direct control over.

 

One other very cool feature that was introduced with iTC is the ability to move the flipper forward on the bar.

I prefer it forward and cannot see any condition under which I would put it back to behind the bar.

 

But I'll go against the grain here and back up Tundra 300: some things - "primary" controls (throttle, steering, and brake) I prefer to have direct control over.

Your anti locking brake system on your car/truck is not in your direct control yet it is an improvement over the human response.

I know this first hand as mine is broke and I locked up on an icy road and damaged my beloved Audi Quattro. :sad_old:

 

Your anti locking brake system on your car/truck is not in your direct control yet it is an improvement over the human response.

Yeah, you have a valid point. Guess it comes down to proven technology: like abs or stability contol in cars (exept Audi ???? ) vs new concepts put into production too soon (sled efi in the 80s and 90s).

Brings an idea for a new gen topic thread: Ideas for Future Technologies. Your e-shocks, my e-clutches... add FLIR (forward looking infrared) that detects and warns of oncoming traffic, groomers, deer, dog teams... hatless (?) x/c skiers on the trail ahead.

 

i thought the itc is just as fast in sport mode as a cable unit. It just feels "soft" because there's no cable to pull. But I think 2 modes would always be enough for me. 3 is kinda overkill.

 

i thought the itc is just as fast in sport mode as a cable unit. It just feels "soft" because there's no cable to pull. But I think 2 modes would always be enough for me. 3 is kinda overkill.

I agree, i'm either in eco (not too often) and mainly in sport, standard i have not found much a use for as of YET??

 

Tundra 300, have you ridden a sled with iTC?

You seem to understand the system but not the programming possibilities associated with the three mode options.

When you move the flipper, the ECM sees that signal (voltage change) in a tiny fraction of a second. The ECM then looks at the mode value (store in RAM memory) and uses it to determine (through a map) what increment it should provide to the throttle plate driver. Again, tiny fractions of a second and it can account for any lag in it's processing by "boosting" the output to the throttle plate driver.

The ECM is a computer and can process internal instructions (program) faster that you can blink. Try moving your thumb faster than you can blink.

In ECO mode the input to the throttle driver is intentionally muted. It is purposely delayed. And even if you hold the flipper at max, the ECM will not fully open the throttle plate.

In Sport Mode the opposite is true. The input to the throttle driver is intentionally amplified. Meaning it overdrives the throttle driver so you get a exaggerated essentially "superhuman response". It could drive the throttle plate faster than you could operate it with a cable if the programmers wanted it to. BRP decides what the feel of the acceleration should be and IMO they nailed it.

IMO Standard mode is the linear response or maybe it leans a little toward Sport to insure no lag feeling. I am not sure if it holds back WOT.

This is not a sad story for the future.

Just think, if steering was controlled by wire, darting could be almost completely eliminated.

If suspension was designed to use computer controlled electronic damping a sled could ride like a magic carpet.

Yes they would cost more and would be more expensive to fix but hey, when has that stopped companies from developing the next big thing?

Yes, like i said in my first post, i rode the 900, 600 Ace with ITC, and a 2012 600 ACe with throttle cable. The 600 throttle cable is much quicker off idle, once rolling from 1/4 throttle to wot they are about the same as sport mode.

Just right off idle is the big difference. Feels like BRP intentionally slow down the ITC response in all modes to make it safer in tight technical riding situations. I know the signal can be fast, but BRP has definitely slowed this down, and the throttle potentiometer is set up on a progressive scale. Meaning the first quarter throttle does less then actual movment and the last quarter does the most.

I guess one reason i'm not so fond of the electronically controlled machines is because i am HDT, and get to spend alot of time repairing, and reprogramming/replacing, these electronic components on heavy equipment. The number one call i get it machine down because of electrical failure, so i pack my fancy laptop and brand specific link( which cost the same as a new Ace) and head out to do some diagnosing.

I might be old school, i enjoy running any machine or sled mechanically where i am i control, and not an ECM monitoring my inputs and thus sending a electronic signal according to how some engineer thinks the machine/sled should behave...

Again, try blipping the throttle on a 600 with cable and a 600 ITC. The cable is much faster, almost dangerous fast.

And thanks for the PM's guys, i believe there are more that feel this way.

 

So tundra 300, how many miles have u personally put on these sleds with itc throttle?
Just wondering cause one guy I talked to last year said the throttle cable 600 ace was way to responsive.....seems brp has fixed that problem now.

 

I rode a the ITC and the Cable control machines about the same distance and since i do not own any one of these sleds, i have a fairly unbiased opinion of either system.

Just what i noticed right off the bat. :happy_old: You ever rode a cable 600 for a mile or two?

 

Actually have yes, just about a month ago. One thing to note is the throttle gets a lot more responsive once it kicks out of break in mode...

 

Actually have yes, just about a month ago. One thing to note is the throttle gets a lot more responsive once it kicks out of break in mode...

I sure hope so cause right now my wife's 2012 600 ace (4000 miles) is snappier than my 2016 900 (110 miles) ace off the line!!

 

I sure hope so cause right now my wife's 2012 600 ace (4000 miles) is snappier than my 2016 900 (110 miles) ace off the line!!

Has the cable system, no?