some question bout hi cam

[mika_mivec]

hey guys,juz want to know,what are the valve clearence in installing hi cam into 4g13/15 inj?is it neccessary to change valve valve spring timing belt?and how to setting the adj cam pulley for single cam?i mean the max we can adjust whether advance or retard:hmmmm:hope to all sifu2 in zth can help

*piper or jasma cam shaft
*arospeed adj cam pulley

 

[SkYwAlKeR]

hot engine:
inlet 0.15mm
exhaust 0.25mm

normal regrind cams not necessary to change valve spring

old skool tuning,
u can start with stock cam timing setting.. slowly retard the cam by each mark... test drive and check ur preference...

proper tuning,
need to use dial gauge and proper calculation on cam timing with respect to opening of intake and exhaust valve...

 

[series5401]

hot engine:
inlet 0.15mm
exhaust 0.25mm

normal regrind cams not necessary to change valve spring

old skool tuning,
u can start with stock cam timing setting.. slowly retard the cam by each mark... test drive and check ur preference...

proper tuning,
need to use dial gauge and proper calculation on cam timing with respect to opening of intake and exhaust valve...

sifu sky, wat is a dial gauge and proper calculation?

 

[SkYwAlKeR]

sifu sky, wat is a dial gauge and proper calculation?

something like this...

YouTube - 2nr Supra video part 2

this video is for 2jz engine... concept is the same... u must be pro in cam timing calculation...