4AGE camshafts (again)

[Bean]

totta Crolla Wrote:Those cams are likely to need uprated springs and are probably right
on the limit of the standard shim arrangement.
The 4-age 16v responds really well to cam lift and sometimes I
think the lower lift long duration cams are a compromise to suit
the standard cam followers / shims

You will only likely get the best from uprated cams by using adjustable
cam pullies and time the cams for power not idling ability.

Valve springs and lifters will be on the edge with those lifters but will work if in goo condition/correctly shimmed.

And I agree lift is where it's at. Loads of people go for big duration and then wonder why they gain only little power. The wilder the cams the lower dynamic compression will be (which is fairly high in stock form ~8.4:1 from top of my head). My friend runs ~13mm in his race car (FA setup).