2007 MCX Pump Gas Turbo Clutching?

[Extreme-One]

2007 Apex MCX Pump Gas Turbo Clutching?

My wife is running a 265hp pump gas MCXpress setup on her Apex. Just wanting to get some opinions on clutching. Seems to run a little doggie in the trees, I know... rear mount turbo with lag. Just wanted to know where to improve without doing a bunch of testing. What are others running?

It currently has the following.

Primary

57.7 gram Yamaha weights (not sure of the profile but they have two 17 gram rivets)
blue/green/blue spring with an engagement of 4000-4200 rpm
14.5 rollers
Runs 10,500 to 10,800 rpms.

Secondary
47 degree Yamaha Helix
Yamaha white Spring turned to 90 degrees, 6/3 holes.

Gearing is 20/40, sled has reverse.

We ride between 5,000-9,000 feet and the boost adjusts with altitude... approx 11-13 lbs where we ride.

 

[Extreme-One]

Anyone???

 

[Extreme-One]

Ideas???

 

[jason leckner]

clutching on apex mcx

well i have a set up that mark did from lipheimers in rocker on my 07 apex,sounds right so far with 10,800 at 14 lbs i have a shockwave adjustable clutch.do you? if so you may need too adjust.let me know,my mcx is awsome power.nothing like sinking in the deep pow and flowing threw while your buds are stuck way back.

 

[Extreme-One]

Thanks for the input. I do not have a shockwave... I have friends that do on boondocker turbo's but I haven't done it yet.