Spec-ing cams?


what do u need to spec a set of cams properly?
bore/stroke? valve size? revs? estimated power output?

my car is running over the 450+ power mark.
but it stops making any more power after 6.5krpm
i use it in fwd drag racing and i need a higher powerband.

so looking into having some cams either made or buying some off the shelf

any help or advice/discussion questions wont be missed!
thanks, chris

 

Experience of very similar engines, specing a cam isnt a purely paper exercise, different engines respond differently to the same profile.

Trial and error is the only real way to get the best results.

 

as above but there will no doubt be a cam to suit already on the shelf of the cam grinders, or you can do as said after research and have one ground.
I've just had a vaux 1400 cam ground with a fast road pinto profile on it, as experience of other people tell me it's a good one.
tabetha

 

just out of interest who could regrind/reprofile a cam?
i've got a few spare good ones that could be put to some use.

 

I cant think of a single cam company offhand who CANT reprofile a cam.

 

Whilst companies are able to regrind, they can only do so if there is enough base circle if higher lift is needed, but they can be sprayed to build up, but cheaper in that case to get a new cam.
I would go to a reputable engine machine shop.
tabetha