Adjustable Cam Gears 4 Rb25det

[teamplasma]

Ok here's what i'm set on doing, fitting both (exhaust and inlet)hks adjustable cam gears to my series one (93) r33 rb25det

i know one goes on piece of cake but everyone leaves off the second, 1st question is why is that? and 2nd i know it is possible to get the other on i've heard of rb25's with it what has to be done?

i know the vct has to come off to make it fit, what happens from here?

Edited August 14, 2006 by teamplasma

[R31Nismoid]

Do you realise there is generally no gain at all on the RB25?

A number of people now have tested it and have actually lost power/mid range rather than gained any. Some have stayed the same also.

[teamplasma]

i've heard such things bout no real gains, fact is i've got the cam gears and am doing the timing belt and a range of other things so it will be the "cheapest" mechanical time to fit them, besides trackside will soon be selling the clear cam covres so it's a bling thing too hehe

[siddr20]

You will only gain if you get your car tunned properly!!

^^ observation from friends cars being tunned properly with pfc and other supporting mods.

Edited August 14, 2006 by siddr20

[teamplasma]

okies so good tune = possible gain sweet, is it as simple as disconnecting the vct or does something have to be done with it? surley some readings must go to the ecu?

[AdamsR33]

From my understanding is that people only fit the exhuast cam gear cause that's the one where you get some extra power from when tuned right, but if your just putting it on stock motor then yeah what R31nismiod said.

IMHO i would forget the camgears and just get tomei pon cams.

[otto]

an adjustable cam gear is totally inferior to the std vct, the std vct adjusts on the fly so you get the best of both world(bottom end and top end gains) by changing it to a fixed position cam gear your gonna get only one or the other,

this is why no one changes it!

Edited August 14, 2006 by otto