Mds weights worth it on the alpha?

[MDS]

I did the flash from precision for a customer on a 19 Alpha 154 and loadcell dyno'd it before and after was impressed with the gain! Ended up adding a gram to the tip went riding with him on identical sled not flashed and very noticeable in the real world to. (for you dyno doubters)

 

[summ8rmk]

I did the flash from precision for a customer on a 19 Alpha 154 and loadcell dyno'd it before and after was impressed with the gain! Ended up adding a gram to the tip went riding with him on identical sled not flashed and very noticeable in the real world to. (for you dyno doubters)

Thank you for the report.
Are you able to perform the flash for more customers in ur area?
I would be interested in purchasing this for myself. [emoji4]

Sent it

 

[MDS]

I'm just a clutch guy. Also guys if you have any questions mdsclutching@yahoo.com or 509-899-0605.

 

[line8]

Thank you for the report.
Are you able to perform the flash for more customers in ur area?
I would be interested in purchasing this for myself. [emoji4]

Sent it

You can get a silber flash from ride finesse.


Sent from my iPad using Tapatalk

 

[summ8rmk]

You can get a silber flash from ride finesse.


Sent from my iPad using Tapatalk

Yes but i am south central WA. and steve is 45min away from my house. Ride finesse is 2hrs.

Sent it

 

[Vern]

Update: so as you know from this post I purchased the mds clutching about a month ago for my '20. Well, my sled won't pull it for some reason. With the weights loaded to Steve's specs it struggles to get much past 75-7600 rpm. I ended up having to pull all the screws and run just the empty weights to hit between 7800-8000rpm at roughly 8k feet. This is with the 45° helix and also after he sent me a secondary spring to see if that helped, but it didn't. Steve has been helpful trying to figure this out but he seemed at a loss as people are usually not having to run the weights empty until well over 10k ft and he says I should be over revving at my elevation. At his suggestion I had the dealer run a scan on the sled to see if anything showed up, but dealer said everything checked out. Last weekend I put the stock weights back in but left the helix and spring he sent me in the sled. Rpms came back up to 8-8200, but it definitely didn't feel like it pulled as hard down low as it did with the mds. Next ride I'm putting the secondary back to stock just to see what changes. Anyone else not been able to pull mds clutching on the newer sleds or seen anything similar? Anything to look for?

Disclaimer: this is in no way meant to talk down about Steve or his product as I have seen them work first hand, and there are many satisfied customers even with the same sled I have. I'm just looking to share info and possibly get ideas to look into.

 

[summ8rmk]

Pic of the spring i have on my 19.
MDS with med or long length black screw with a washer in the tip and stock secondary.
No problem pulling 8,000+ at 7k ft.

Sent it

 

[Shane23]

Update: so as you know from this post I purchased the mds clutching about a month ago for my '20. Well, my sled won't pull it for some reason. With the weights loaded to Steve's specs it struggles to get much past 75-7600 rpm. I ended up having to pull all the screws and run just the empty weights to hit between 7800-8000rpm at roughly 8k feet. This is with the 45° helix and also after he sent me a secondary spring to see if that helped, but it didn't. Steve has been helpful trying to figure this out but he seemed at a loss as people are usually not having to run the weights empty until well over 10k ft and he says I should be over revving at my elevation. At his suggestion I had the dealer run a scan on the sled to see if anything showed up, but dealer said everything checked out. Last weekend I put the stock weights back in but left the helix and spring he sent me in the sled. Rpms came back up to 8-8200, but it definitely didn't feel like it pulled as hard down low as it did with the mds. Next ride I'm putting the secondary back to stock just to see what changes. Anyone else not been able to pull mds clutching on the newer sleds or seen anything similar? Anything to look for?

Disclaimer: this is in no way meant to talk down about Steve or his product as I have seen them work first hand, and there are many satisfied customers even with the same sled I have. I'm just looking to share info and possibly get ideas to look into.

I've had the same issues. Steve has been great, but they just aren't working for me. I'm supposed to grind them down to 69 grams and see if that helps. I just havent had time to do it yet. It seems like the profile is too aggressive for the elevation. I have a bikeman pipe and y pipe too.

 

[Vern]

Pic of the spring i have on my 19.
MDS with med or long length black screw with a washer in the tip and stock secondary.
No problem pulling 8,000+ at 7k ft.

Sent it

Steve had me set up with the short screw and washer in the tip with stock primary spring, 45 helix and later a slightly stiffer sec. Spring. Any idea what rate that primary spring is? I know on my brothers Suzuki with cat clutches Steve's got him running like a 100/340 spring in the primary which is significantly stiffer than the stock spring in my '20.

 

[summ8rmk]

Steve had me set up with the short screw and washer in the tip with stock primary spring, 45 helix and later a slightly stiffer sec. Spring. Any idea what rate that primary spring is? I know on my brothers Suzuki with cat clutches Steve's got him running like a 100/340 spring in the primary which is significantly stiffer than the stock spring in my '20.

Not sure, it came fully assembled from Racin station. Have u spoke with Eric Kay from Racin Station?

Sent it

 

[Vern]

Not sure, it came fully assembled from Racin station. Have u spoke with Eric Kay from Racin Station?

Sent it

Just a quick pm to racinstation on Facebook about not being able to pull the set up that mds sent. They just said that it was odd but it would be hard to diagnose without the sled. Never got into detail about set ups.

 

[Vern]

Well, sent an email to racinstation, he said they've been running cpc weights in the '20s because the '20s are having problems hitting rpm with mds. I wonder what changed between the '19 and '20 that's causing the issues.

 

[Dam Dave]

Ran MDS in my 2018 with 45 helix, ran great, took them out and installed both in my 2020 , no matter what I did could never get over 7500 rpm, even ground a few ounces off then, p[ut stock weights back in and it rips great , the MDS are hitting or binding on something in the 2020

 

[kgra]

Ran MDS in my 2018 with 45 helix, ran great, took them out and installed both in my 2020 , no matter what I did could never get over 7500 rpm, even ground a few ounces off then, p[ut stock weights back in and it rips great , the MDS are hitting or binding on something in the 2020

Primary and secondary springs are different in 2020 and the spec sheet that comes with sled are wrong as well. Did you swap springs or use the 2020 springs?

 

[Dam Dave]

Primary and secondary springs are different in 2020 and the spec sheet that comes with sled are wrong as well. Did you swap springs or use the 2020 springs?

I know but I was told to run the stock 2020 Prim spring instead of the Polaris that was recommended in the 18

I ride 10 to 12 thousand feet and the MDS struggle up here anyway, I had to remove base weight material to run them in the 18 at 12K but I did get them working, they bind in the 2020

also the 2020 stock weights said 70G but when I weighed them they were 72.5, removed material until they weighed 70 and they pull hard up to 10K and then RPMs drop fast, putting in some 68 G to try up at 12K

 

[Dam Dave]

Just a quick pm to racinstation on Facebook about not being able to pull the set up that mds sent. They just said that it was odd but it would be hard to diagnose without the sled. Never got into detail about set ups.

I told him about my issues as well so its not new to him

 

[Frostbite]

Could it be a the EPA driven (see lean) redesign of the fueling system on the 2020 sleds?
Since the 2019's pull MDS weights just fine, it makes me wonder.
Did the clutches or the weight O rings change on the 2020's too? If so, I wasn't aware of it.

 

[kgra]

Just an FYI low rpm will not happen from binding or jamming in a clutch- u would experience over rev. Low rpms are caused because the belt is pulling through the clutches too quick. The spider shim thickness and rollers in spider can effect shift out too - I know I’ve seen people taking about differences in spider shim.

 

[Dam Dave]

Could it be a the EPA driven (see lean) redesign of the fueling system on the 2020 sleds?
Since the 2019's pull MDS weights just fine, it makes me wonder.
Did the clutches or the weight O rings change on the 2020's too? If so, I wasn't aware of it.

LOL no its not fuel related lol my 2020 flat rips compared to my 2018

 

[Dam Dave]

Just an FYI low rpm will not happen from binding or jamming in a clutch- u would experience over rev. Low rpms are caused because the belt is pulling through the clutches too quick. The spider shim thickness and rollers in spider can effect shift out too - I know I’ve seen people taking about differences in spider shim.

it will limit rpm if the weight swing all the way, it hits a wall at 7500 with MDS, Cat weights are fine