Rb25det timing 91 a31 cefiro

[T2ae]

So this 91 cefiro is new to me with a rb25det swap. Currently running a holset hx35,tial 44 wastegate, fmic, 3in full exhaust, gtr injectors. I feel like my timing may be off as it doesn't seem to have much power until boost kicks in which is around 4500rpm. Only thing im running into is my crank pulley only has three marks for checking ignition timing. I cant find any info anywhere when they only have 3 marks! Any advice guys?

[T2ae]

I should add i am adding a wire to the #1 cylinder for a pickup and disconnecting the tps. Only problem is i cannot find out which mark means what. Mine is a automatic so i read it should be at deg 

[KiwiRS4T]

Should have 7 marks, TDC and then 5 deg increments up to 30. Do you have TDC plus 3 marks? Could be 10, 20, 30.

Compare with the picture you will find in this thread (or measure a mate's crank pulley)

https://www.sau.com.au/forums/topic/73824-adj-camshaft-pulley-new-cam-belt/

What kind of ecu do you have? Did you get any charts with the car? Some combos are super laggy and won't do much until wound up.

Have a look through the RB25 turbo upgrade section in Forced Induction and see what other people are achieving with the Holset Hx35.

 

[T2ae]

11 minutes ago, KiwiRS4T said:

Should have 7 marks, TDC and then 5 deg increments up to 30. Do you have TDC plus 3 marks? Could be 10, 20, 30.

Compare with the picture you will find in this thread (or measure a mate's crank pulley)

https://www.sau.com.au/forums/topic/73824-adj-camshaft-pulley-new-cam-belt/

What kind of ecu do you have? Did you get any charts with the car? Some combos are super laggy and won't do much until wound up.

Have a look through the RB25 turbo upgrade section in Forced Induction and see what other people are achieving with the Holset Hx35.

 

Definitely only has three marks..i found another thread on here where a guy only had three but noone really answered it

[T2ae]

2 minutes ago, T2ae said:

Definitely only has three marks..i found another thread on here where a guy only had three but noone really answered it

Also the ecu is tuned through rs enthalpy. Previous owner stated it make 380whp. This is a awd as well i should add

[T2ae]

This is the thread im speaking of

[KiwiRS4T]

2 hours ago, T2ae said:

This is the thread im speaking of

The clue is in the thread. Star from TDC and then its about 6mm per 5 deg so you should be able to work out what your marks stand for.

[T2ae]

So i went by what you said and had to make one more mark to indicate 20deg. Now thats figured out! Thanks for the help guys