Hi everyone

Ive got a 2014 FXDF Fatbob,

Im in the process of buying s&s 106 big bore kit including 89cc heads 58mm throttle body and HP 103 cams, my question is will i have to change clutch setup.

im also going to try and use the FP3, i also have a SERT for back up.

Thanks in advance

You will need the heavier SE diaphragm spring.

My clutch was slipping when I fitted the 106 kit and 585 cams so I fitted that spring and it sorted it.
With my latest work I fitted the AIM VPC in conjunction with the SE spring just in case it needed more in the clutch department

What daggs said. Vpc setup is ideal and easier clutch pull but se clutch spring on its own will do the job

And again. My 106 kit with 583 cams and a mild port on the stock heads made clutch slip from anywhere in the rev range. The SE clutch spring fixed it. 16,000 kms later there is still no problems.

Hey mate I researched over and over sending emails to the techs at s&s in the u.s asking for best possible config went through every forum on newer Harley about 106 kit upgrades and at the end of it I downloaded the s&s parts catalog talked to ken wolf from s&s and brought everything from eBay that was under $1000 Aus so didn't get stung with the bullshit import tax the only thing I had the buy in Aus was the heads due the the price of tax import duty didn't make it viable  the purchase in the states I got them from easy r on eBay all else was u.s and cams including 

 

Thanks for the interest