Catcams timing

[Zsolteen]

Hello.
my car (clio 3 f4r) has catcams 5503505 axles. can anyone help me with the timing? I want general advice and opinions. Does the factory mount fit?

 

[TheCAB]

5503505 304°/295° - 267°/259° - 12.45mm/11.95mm - 4.65mm/4.15mm .

They are full race spec camshafts and to correctly fit them the cam timing must be dialed in using vernier camshaft pulleys and as such you cannot not rely on the factory camshaft locking tool set up to install correctly.

The problem is to do this you need access to the valve gear assembly under the rocker cover to be able to use a dial test indicator so you would need either:

A Camshaft holding down special tools (PMS sell these)
B Fabricate your own camshaft holding-down kit.
C Cut holes in existing engine rocker cover in the exact location to gain access to relevant cam / valve gear below and make some plates to seal off again after timing.

It is definitely not a straightforward process and if you are not familiar with the process ( I am assuming you are not otherwise you wouldn't be asking) then my advice would be to take to a specialist race engine builder to set up the cam timing correctly (not someone who only knows how to use a factory camshaft locking tool).