[cobra 53]

Hello from Spain

Since a longer time I have a NAF 289 Cobra Replica. I have already made lots of repairs and works on it, also with changes of front and rear breaks, also rebuild the Tilton master cylinders.

My queries is:

The breaks are a bit soft and I do not have a good feeling about the breaking point, i.e. a bad feeling when I start to break.

The clutch needs a lot of pedal pressure and is very hard to push. It works regarding slipping and chattering but still it is hard to press the pedal.


Input:

Engine SBF 289 / 1966,

Gearbox T5 WC

Pedals from Tilton

Master cylinder FB, RB, CL are from Tilton


Clutch: Centerforce Diaphragm 10.5", Hydr. Throw out release bearing, , MC Tilton 3/4 series 74, Tilton Pedal 5.5:1 Ratio

Front breaks: Calipers Forged Superlite Wilwood 120.11134 Piston 1.75"/ 4.80, Rotors 12.19" / 0.81", MC Tilton 3/4 series 74, Tilton Pedal 5.5:1 Ratio (balance bar)

Rear breaks: GM Metric emergency break calipers Speedway 91031046, Piston 2.5"? 2.02"?, Rotors 11.75" / 0.81", MC Tilton 3/4 series 74, Tilton Pedal 5.5:1 Ratio (balance bar)

I am looking for a solution, probably the "MC measures" are wrong size?

I hope you can help, will be highly appreciated. Thank you very much in advance and best regards from sunny Spain