Cam Results On Neo Rb25dets

[Simon-S14]

Hey guys. Currenlt have a neo RB25 with 3076 with 4bolt garret .63 housing, running 1.3 bar thro it and making 310 rwkw. While it makes good power the midrange torque is a little lacking so i was thinking of a set of Poncams and chucking them in. I see that they lists the two types so i may as well go for the 260's straight away.

my question is. do i need adjustable gears for these to get the best results? i dont want to loose the vct on it so maybe just get an adjustable gear on the exhaust cam?

has anyone had any decent results from poncams in a neo engine with a larger turbo?

[Simon-S14]

anyone?

[tridentt150v]

http://www.skylinesaustralia.com/forums/To...ms-t317902.html

I think its the same answer

[White GTS-T]

I think the best thing would be to ask your tuner, if he suggests adjustable gears you could always try and get one of these http://www.skylinesaustralia.com/forums/Rb...-G-t311707.html

[STATUS]

depends on how much time you get to play with them dyno wise, i spent about 2-3 hours playing with cams in a std r33 with no vct to get gains every where. If you have the time to play then do it, if not std ftw.

http://www.skylinesaustralia.com/forums/Rb...ft-t308743.html

[Simon-S14]

yeah dont mind spending the time.. but my real question is if tomei pon cams are suppose to be a drop in solution am i just better off putting them in with stock gears or would it be worth spending the time and just going for an adjustable gear on the exhaust side.

my last 25 i ran gtr cams reground to 260's and with stock gears they were no good.. but with some time spent adjusting aftermarket cam gears we saw gains everywhere.

[wolverine]

On the stagea the 260deg type B's made more power everywhere (sorry I don't have a pre/post dyno) with HKS GT-RS. Somewhere in the 10-20kw range depending on where you looked. All with stock cam gears.

The seat of the pants dyno feels says more everywhere especially down low where I was worried about losing grunt especially with the big tub of a car to push around.

Is it worth it??? I think due to the gains down low (that would only be even better with a larger turbo than the GT-RS) I would say yes if you have money to spend you are looking at fattening up the area under the curve.

The caveat is that I am assuming that the tuning was as thorough on the pre-cams tune as the post-cams tune but same tuner same dyno.