Join Date: Sep 2010
Location: Pacific North West
Ferrari Life Posts: 2,526
Ok seems minimum safe is 4.2 setting, max 4.7. Have them start at 4.2, go drive it, and see if you have any forward creep of clutch drag. If so, move it up a bit. This is assuming your clutch and flywheel are in good condition.
I highly doubt you need a new TCU.
2015 458 Speciale', 2014 F12, 2013 458 Rosso Scuderia (To be traded), 2012 MP4-12C, 2010 LP670 SV, 2010 Panamera Turbo, 2009 16M, 2009 Scuderia , 2008 CLK63 Cab., 2002 996 GT2, 1994 RX-7 R2