R33 RB25de & RB25det cams - is there a difference? - you EXPERT advice please?

[Richard Everett]

- I need to know - is there any difference in specification between the cams in a R33 RB25de & RB25det?

- Am at the beginning of building a RB30det & I have got a R33 RB25de head & as part of its servicing before fitting it, I had in mind replacing the cams & the valve springs with new ones.

- As the RB25de cams were for a NA engine & I will be turboing the engine, then I need to know how they vary (if at all) from the RB25det cams?

- As for the valve springs, after 15 years & some 80,000 kms I am thinking they may have lost some compression?

- I have found a set of new R33 RB25det valve springs & before I buy them I would value your advice.

Cheers,

Richard

[Sciby]

Moving to a more suited forum.

[skyla]

The heads appear to be the same, according to the spec sheet.