850 Rpm ?

[damx]

So what is the target rpm for the 850? On the dyno it looks like 8100.

 

[TRS]

Is the dyno run a short sweep or an extended step run?

 

[10003514]

I have the same question, manual says 8250 +/- 250 which is a big range. All the dyno runs I've seen are 8050-8100.

 

[damx]

Dynotech did the dyno runs, that were 12 seconds each. Mds clutching has a track dyno and they say 8050-8150, just wondering how this transfers to the real world?

 

[AdrenalineAddict]

Are you sure it doesn't say 8250 +0/-250.

 

[tdbaugha]

It says +/- 150

 

[slyrydr]

remember most dynos are lower altitude....as your altitude increases, you need a little more rpm to stay in the best range....especially above 7-8k, you'll want an extra 100-150 rpm to stay in the sweet spot...so 8100 becomes 8200-8250 depending on elevation....

 

[revrider07]

It would be nice if we could dyno one at 10000 ft say at 25 degrees and see where it makes the most.

 

[kanedog]

Olav Aaen had a portable dyno to drag up the mountain about 30 years ago. No point just thought id throw that tidbit out there.

Sent from my SM-G920W8 using Tapatalk

 

[m1kflyingtiger]

Dynotech did the dyno runs, that were 12 seconds each. Mds clutching has a track dyno and they say 8050-8150, just wondering how this transfers to the real world?

Just curiosity, what kind of efficiency are they seeing? Do we know how much they can pull at the track?

 

[damx]

Not sure, call stev at mds clutching.

 

[revrider07]

Olav Aaen had a portable dyno to drag up the mountain about 30 years ago. No point just thought id throw that tidbit out there.

Sent from my SM-G920W8 using Tapatalk

Yep i remember that and now no one does and elevation riding is at an all time high. Aaen is a master of clutching.

 

[Scott]

Mine was hitting 8250 on short bursts yesterday.
On a logging road.
6500 feet.
Bone stock OEM clutching.

 

[2XM3]

IMHO i'd guess it will like about 8200 loaded at altitude, just based on the stroke increase's and good old math lmao

 

[phatty]

My goal was 8200 at 9500 feet.
SLP blue/pink with 10-66s. It will hold 8150 at 10k+ and 8200 all day long at 9k feet. Pretty happy with it. Was only hitting 7950 with the stock spring and 10-66 weights. I do think there is still more to be gained from clutching on this sled. Im not an expert by any means, but I am sure first of January we will start seeing new helix/secondy spring combos as well.

 

[Scott]

Mine was hitting 8250 on short bursts yesterday.
On a logging road.
6500 feet.
Bone stock OEM clutching.

Now it holds 8700 on long WFO "bursts". Hehe.