8DN slipping in Secondary???

[ApexGTman]

My 2015 MPI SRViper LE with Ulmer clutch kit has great bottom end but when it reaches 85 Mph or so that seems like its it. I read that my secondary could be slipping at that speed. How do I determine if its actually slipping and what do I do to remedy it?

Supertips 2-0-2
Ulmer Red Secondary 6-2.
K - Helix
8DN

Any info will be greatly appreciated

Thanks

 

[STAIN]

Check for black marks in BOTH clutches. You may need to adjust weight or secondary spring wrap. You didn't mention shift out RPM

 

[ApexGTman]

Check for black marks in BOTH clutches. You may need to adjust weight or secondary spring wrap. You didn't mention shift out RPM

It'll hit 9150 (May even Tap the limiter Briefly on take off) and drop off to 84-8500 on top. It cleans off the primary to about 1/4" from the edge. Didn't really check the secondary for any markings.

 

[yamahabuyer]

Your setup is qutie a bit different then mine. I hit 109 yesterday on the trail, not a plow road or icey lake. A feshly groomed trail. 2014 ltx se with 180 mpi kit intake out hood

ulmer weights 4-2-4 (need to add antoher washer to mid and maybe the tip with intake out hood)
ulmer red 3-3
k-helix
8dn with machined secondary

Moving the intake out the hood made a night and day differnce in mid and top end power. Like you my rpms were low on top, I was going to pull a washer from the tip but tryed moving the intake first and now need to add more weight as I can't stay off the limiter.

 

[ApexGTman]

Your setup is qutie a bit different then mine. I hit 109 yesterday on the trail, not a plow road or icey lake. A feshly groomed trail. 2014 ltx se with 180 mpi kit intake out hood

ulmer weights 4-2-4 (need to add antoher washer to mid and maybe the tip with intake out hood)
ulmer red 3-3
k-helix
8dn with machined secondary

Moving the intake out the hood made a night and day differnce in mid and top end power. Like you my rpms were low on top, I was going to pull a washer from the tip but tryed moving the intake first and now need to add more weight as I can't stay off the limiter.

My intake is on the outside as well. With the 3-3 twist, do you think you are giving up much bottom end pull? Just out of curiosity what is you gems settings, mine is rich in the mid range and under boost. 9's and low 10's for afr numbers at sea level.

 

[yamahabuyer]

I might be giving up some bottom end but it just spins the track anyways so I dont think its was enough to hurt me in a race. It did help keep me off the limiter when the snow get soft. Gems settings are:

Mode1- 2.5
mode2- 4.0
mode3- 3.0
mode4- 5.0
mode5- 4.0

I'm still a little rich cruising but its getting pretty close