Rb26 Cam Gears

[Ben C34]

What about type bs dialed for response? Or is it not possible at all?

[XKLABA]

I had Type Bs in my 34 when I bought it and dialed them in best I could and still wasn't happy with what they did so swapped them out for Type Rs (only cause I couldn't find stock R34 cams for sale at the time) and made same peak power, +/-2-3kws, but came on +/-800rpm sooner

I know why this is but CBF writing it from my phone

[BlackBox]

I got type b for my 25det neo but haven't installed them yet, somebody told me to go the smaller cams for this reason but majority said the type b's were better, and tomei claim the type b make more peak power and better response than type a

[XKLABA]

But then they go on to say the Type Rs make better response then both, how does that work ?

[r32-25t]

Tomei will tell you what ever it takes to sell you a cam, other people it's the placebo effect of it makes 10kw more up and at idle it goes "wank wank wank" but what most people forget to tell you is it makes 20kw less thru the bottom

But with playing with lift and duration in many set ups, we've (me, Mic, piggaz and others) proved that on low mount turbos the bigger duration cams make everything worse

An easy way to look at it is to increase response people increase compression and larger duration cams reduce compression

As a side note I thought so much of my type b pon cams I gave them away

[BlackBox]

I am talkin on a 25 neo, where there is no 'type r' available. Stock cam is intake 236 8.4mm exhaust 232 6.9 mm and the type b is 260 9.15 intake and exhaust.

But do tomei measure from base lobe or from .050" lift?

Although I am going top mount forced performance 3076 it is still not a large turbo, perhaps I should go with type a with 252 degree and still 9.15mm lift, it is still a considerable amount larger than factory

[Ben C34]

The type b on the neo engines Is good.

Type b on rb26 not so good.

260 is the advertised duration. You can Google tomei cam cards and see the duratiom at 50 (around 222 from my crap memory)

Edited January 1, 2015 by Ben C34

[XKLABA]

Cams are cams and work on crank rotation angle, makes no mind what engine they are on

Go the 252s

The Tomei cam duration is takin from lobe contact on to lobe contact off given the correct clearences from bucket

[Ben C34]

Cams are cams and work on crank rotation angle, makes no mind what engine they are on

Go the 252s

The Tomei cam duration is takin from lobe contact on to lobe contact off given the correct clearences from bucket

Sort of. Perhaps it's the vct on the neo that makes up for the loss on the rb26.

Vct wins. Neo has vct. Neo wins!

[GTR_JOEY]

Vct masks how shit the cams are.. It like putting a T88 on a stroker and thinking its responsive

[XKLABA]

Neo is a sales gimmick and not worth shit on a turbo, add lift to it and then maybe but I'm yet to see a neo match my 32 for power AND response on the same boost and my 32 still runs bush bearing stockers

I can not post pics for some reason, will see if I can get someone to post it for me

[Piggaz]

For Micky.

[BlackBox]

Would you say the 252 cams are a good choice over stock on the neo?

[XKLABA]

Thanks Paully

What are the specs of both stock and the 252, advertised duration, lift and LCAs

May as well get the 260 as well

[Sinista32]

These may help.

Hope they turn out

[XKLABA]

Thanks Sin, but I know the RB26 specs, its the RB25 ones I have no deers eyes about and am after, I have never had anything to do with the 25 cause well frankly it's not a 26

[R31Nismoid]

Tomei will tell you what ever it takes to sell you a cam, other people it's the placebo effect of it makes 10kw more up and at idle it goes "wank wank wank" but what most people forget to tell you is it makes 20kw less thru the bottom

So much right in that statement.

Just because someone makes something and their marketing says you need it - does not mean you buy it.

Although I am going top mount forced performance 3076 it is still not a large turbo, perhaps I should go with type a with 252 degree and still 9.15mm lift, it is still a considerable amount larger than factory

For that size of turbo, which really isn't big, stock cams would still be a pretty damn good choice if you needed to spend money elsewhere like:

Brakes / Suspension / Diff / Clutch - starting point of total spend is around 8k.

And if you haven't spent money in those 4 areas - you should be before touching the cams because you'll actually get decent benefits of being able to stop better, actually drive around a corner with the added power and/or actually put said power to the ground. All are critically important, far more so than a few kw here/there on a graph.

[BlackBox]

Have already bought the type b cams but I will sell for more suitable cams if I knew what to get,

I have already got suitable upgrades to those areas besides diff, I'm not sure what I could upgrade there?

[GTR_JOEY]

Is the head coming off?

[BlackBox]

Nope