Cam Gear

[newboost]

I am due for 100k service this weekend and was going to do the timing belt along with all of the tensioners,seals & pulleys. The questions that I am asking here is that I have a adjustable cam gear also (brand un known),

Should I put it on at the same time ?

Which cam does it go on (exhaust/intake) ?

Are they really worth it ?

I have done some work to the car so far. Mods so far are FMIC, Eboost2 (boost controller), turbo back zorst, microtech lt12, splitfire coils,Kypergear Hyflow turbo, shift kit thru the auto.

The car is a r33 s2 4 dr (auto)

any help with these questions would be very helpful.

(why not give it to a mechanic to do, problem of being in a small country town that if it is a import it usually means that they are all unsure of what to do......)

[femno]

Hopefully your gear is a good enough brand that it wont cause issues or wreck your engine (possible breaking of bolts, it has happened on cheap gears).

All you do is replace the existing exhaust cam gear with your adjustable one. Since the VCT is on the inlet you leave that one alone. Yes its best to do it with the 100k as they will remove the cam gears to fit the cam seals anyway.

You could get a gain of at least 20kw in the midrange, boost will come on earlier and you will get more power overall, its very very worth it.

A tickle-up of the microtech will make the most of the gear too. Exactly where to set the gear is found by trial and error on the dyno.

[Birds]

Was VCT standard on all RB25DET? Is there any point at all to putting one on the intake side?

[wolverine]

retarding the exh cam gear around 2-4 degrees seems to be a good range to test on the dyno.

[newboost]

sorry i did not have pic of the gear at the time but here is one now.

[Adriano]

I would fit some high tensile cap screws, thats the main problem with the cheap gears