[Hrc630]

I have never analyzed how it work but the engine braking is very strong. This weekend I will take time to make some video of it.
You can clearly see that when you go off on the gas pedal the rpm slowly drop but it not go in idle. It slow down with the speed.

On your installation, do you have put the shim correctly, do you have clean your belt and pulley with acetone and soap , etc

Yes the Two Brothers exhaust is loud, but I have put the quiet insert and the sound is very nice (not related to the clutch kit anyway)

For me, the stock wet clutch set is very bad principality because of the rattling noise and clunking engagements... way smoother and quieter with the wet clutch delete kit.

[glenlivet]

On that subject of engine braking Hrc, my 800 53 is stock wet clutch equipped, not yet reclocked secondary.  In low range and descending the steepest pipeline hills around, if the RPM exceeds 2000 the machine will gather speed and motor speed but if the RPM is less than 2000 the machine will slow despite the grade, and will slow to idle RPM 1350, and keep a speed of 2-3 KMh as though it were being lowered on a winch line.

What does your dry clutched machine do in this circumstance? I know that the dry clutch (around here referred to as a 'belt slammer') allows the machine to idle in gear and not drive until RPMs are increased, by opening the front clutch until there is slack in the belt.
Would this not mean that if your rpm slowed to idle on a hill like mine, the front clutch would open until there was slack in the belt and then the machine would lose engine braking and take off?

If not then how does it retain engine braking at such slow RPM?
Just curious, thanks.

[Hrc630]

I need to check.
I am pretty sure it not return to idle and rest at the rpm of the engagement point...
need to try, I rarely ride in low gear but I have never experienced free wheeling in any situation.

Oh, forget the belt slammer term... only one guy have reported belt failure. Even with wet clutch if the pulley was not aligned you will blow a belt. Sure if you put a spring that engagé at 5000 rpm you can break a belt but the stock setting of the trail block engagement is at the same rpm as your wet clutch set up. You will never break a belt with 2000 rpm engagement... 90% of the sxs model have no wet clutch.

[glenlivet]

Oh sorry, 'belt slammer' isn't meant to say it breaks belts, it's just a slang way that's used in western Canada to say the front clutch slams shut on the belt instead of it being tight all the time.
It would do no good for me to forget the term, everybody else around here will still use it.

I won't use it anymore on here though, if you find it offensive.

The engine braking ought to work the same in high range as in low though, on a steep hill. Do you mean to say that your machine will not return to idle/belt slacking RPM when off throttle and slowing down on a hill? How does it keep the RPM up, especially when it wasn't originally made for a dry clutch? Just wondering how it works.

[flash]

Hey guys, been reading this thread and thought I would comment, I like the wet clutch
for trail riding just don’t like the rattling, I think they are better on the belt,
but I think the dry clutch makes more power at the cost of faster belt wear.
Just a thought isn’t the 1000 dry clutch ?

[ctdls]

I will try & explain how engine braking works with a dry clutch hopefully that will clarify why this kit does not have engine braking.

When idling the drive belt is tight, the drive belt is riding on a bearing in the bottom of the drive clutch & the engine is spinning freely. At this point the drive belt is not moving, nor is there any dragging on the belt from either sheave because the belt is centered between the sheaves. Should the alignment be incorrect one of the sheaves will contact the belt causing hard shifting because it is trying to creep or creating belt heat due to incorrect alignment.

Now you're riding the unit driving @ speed & you release the throttle, with a Can Am the speed of the driven clutch exceeds the speed of the drive clutch. A thing called a sprag clutch exists under the bearing in the bottom of the drive clutch where the drive belt rides. This is the bearing in the previous paragraph the belt rides on drive clutch.

Because the driven clutch exceeds the speed of the drive clutch on the motor the sprag clutch locks, you now have engine brake. When you slow to the point the drive clutch/engine is spinning faster than the driven....... the sprag clutch releases & everything is normal & it idles & you can shift gears.

To address glenlivet concerns with slamming the belt, first you would shim the moveable sheave as close as possible to the belt(near touching but not) as you can. Secondly, ramps profiles & spring engagement rate can be optimized for an extremely smooth like walking speed for engagement.

Soooo why does the awesome super hi performance dry clutch from CFMOTO not have engine brake?

No Sprag clutch.

[Hrc630]

You are incredible!!!

I have put close to 2000 km with the kit and it have a STRONGER engine braking. Each time you left the gas, the ZForce slow down faster than stock !

The only place when I need to check is at very slow pace because I don’t ride often at slow pace in very technical place.

It’s very funny to have people argue when they don’t ride the kit and have « try » it and claim no performance gain because of wrong installation or something wrong.

The CF Moto Canada team have win the 12 heures of La Tuque race two consecutive years with this kit. Thousands of rider around the world put this exact same kit in their Can Am, the snowmobile world put this exact same clutch  in their sled for many years but all of those people are wrong...
It’s very interesting to see that they work everywhere but not in our chinese special machine !

Anyway, I will post video this weekend and that’s it.

I have no benefit to continue to argue on this. I am not paid by CvTech and for me this kit have made my ZForce more competitive with others brands Utv on the market.
I will put my time on my flashing oil pressure lights

[Cosmosdan]

Just to stir the pot, here is a part list for the trailbloc. Some do come with a 1 way or 2 way bearing in them.
http://3pclutching.com/cvtech-replacement-parts/

[ctdls]

Just to stir the pot, here is a part list for the trailbloc. Some do come with a 1 way or 2 way bearing in them.

I was thinking this was the case  I was pushing a button. Checking for understanding of how it works by the preacher of performance. I've heard of reliability durability issue, maybe this why the CFMOTO kit does not have it....don't know for a fact.

[Cosmosdan]

It could be you just received a 2way bearing. Give it a look when you can.

[ctdls]

It's a two way bearing from CFMOTO directly, they make no argument regarding engine brake. They are very clear.

[doug80638]

Having driven Polaris and CanAM units, I can say with confidence that their engine braking does not come close to the performance of the Z8 engine brake.  This is one place CFMoto shines.

Just follow any of the competitors down a steep grade, and the difference will be very noticeable, and make you laugh.

I'm curious about this discussion because any modification that potentially reduces engine braking, especially at slow speeds on steep grades, is a non-starter for me, not to mention the $1200 price tag.

[Hal]

My new ZF1000's engine braking seems to be every bit as strong as my 800 was. As for acceleration, there's no comparison and the clutch appears to be part of the equation for sure. The quiet operation is a nice plus also.
Hal

[glenlivet]

doug80638, that was one of my more delightful discoveries about the 800 Trail, that in low range it will run at a stable idle down the steepest hill short of tumbling end over end,  at a bare 3 kilometers an hour and without ever touching the brake at all. That, you just cannot beat.

Speaking of brakes, I was also quite pleased to find that the hand brake lever activates a wholly independent brake on the driveline, making it superior in safety to most vehicle's E brake that usually is just a manual way to activate the same service brake the vehicle normally uses. Well done.

[REDRIDER]

I think you two guys don't have the same kit lol. I also refer to dry clutch as belt slammers. It is not a literal meaning it's just what we call them.