cmhdeadlift

Has anyone ever had a problem snapping input shafts? WTF is going on

Ive snapped (sheared) two in a month, going from 2nd to 3rd on a hard pull (around 9k rpm)

Set up:
bridgeport 13brew, gt42r turbo, horsepower right now on low boost is 580
Brand new Liberty build rx7 transmission, exedy carbon triple disc clutch, banzai crossmember, stillway 0-400 shifter

Trout2

iTrader: (5)

You are not the first. Not surprised with that power and clutch setup. I thought Liberty offered an upgraded input shaft but may have stopped.

Jack

cewrx7r1

iTrader: (2)

Maybe your shifting style is too harsh.
You need a non Mazda transmission.

cmhdeadlift

Ive ordered a Tilton Flow control Valve to allow for some clutch slippage

The triple plate wont slip on its own so im thinking this will be the ticket

Kanho

iTrader: (3)

Someone else on the forum with a 20B (I beleive his name is bobby) he has a silver FD with a scoot hood. He participated at the modified challenge. Had the same problem runing the same built transmission from liberty and a carbon tripple from exedy. The problem seems to be because the clutch doesn't allow enough slippage too much bite. I have the same setup except a cerametalic twin from exedy so far no problems.

Andrew

Neutron

iTrader: (10)

Please post an update when you install the Tilton flow control Valve! I was planning to run the Exedy triple disc with Tilton flow control as well. There is a forum member that has used the Tilton flow control with the 100% stock trans and I believe an ACT HD Extreme clutch to numerous 1.3 60's with no issue what so ever. It absolutely looks to re-leave tons of shock off drive line parts during hard launches and shifts.