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Cam Gears

cefiro

By cefiro,
in Engines & Forced Induction

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Kranker Collaborator

Kranker

Posted
Posted

Id just go with what some of the guys who have built some fairly serious GTRs have reccomended i.e. Duncan said JJRs

I personally wouldnt put part on my car that i havnt had someone reccomend, and I have never heard of GKTECH, doesnt mean they are crap though

They look ok, auzzie company, and they use them on their own engine.

Could be worth looking into what material they are made from, it doesnt say on their site.

Good price though, might be worth a try...

Tomek Experienced

Tomek

Posted
Posted

Yeah..

I was heaps hesitant when buying mine, did the research, asked the right people and seen them on plenty of quality cars..

So picked up a set of JJR items, good bang for buck.

In a lot of cases it's not the cam gears its the mechanic!

Duncan Grand Master

Duncan

Posted
Posted

look an adjustable cam gear is a very simple thing - thats why cheap copies work OK.

the important thing is that the centre locks the outer ring firmly in place. pretty easy even for the chinese factories to get right.

the other factor is....how accurate is their base setting (ie 0 degrees adjustment). When people say 4o retarted on exhaust and 2o advanced on inlet as a starting point, it assumes your new cam gears are 100% the same base angle as the factory gears. If they are only 1-2o out you get a totally different result (and it is literally mm only in difference between perfect base and way wrong.)

But the thing is, as long as you can spend a bit of time on the dyno, you can work out the best for your engine, cams and gears, regardless of whether their base setting is 100% right or not. so just buy the cheap stuff, start at a good base adjustmennt, and get you tuner to spend some time checking different settings.

And if you are wondering if adjustable cam gears are worth the trouble, even on a pretty stock motor - this is my most recent experience:

totally standard motor, standard cams, r32 n1 turbos, standard intake, standard boost (0.8 bar). adding adjustable cam gears made 31rwkw difference (over 10%).

cefiro Experienced

cefiro

Posted
  • Author
Posted

I can understand both arguments, the "cheaper" ones should do the ob just as well in theory, but I think in the end you get what you pay for, I think I will settle for the JJR ones as its an important piece of hard wear and $100 - $150 is not much in the scheme of things and will have piece of mind they will not jam and the timing is on.

JimmyRickard Mentor

JimmyRickard

Posted
Posted

I think I might try the JJR cam gears, prefer to use something trusted by you guys. Just Jap has them for $250 for a set. is this around the money (locally)?

Also i'm taking my car in get to get a PowerFc installed along with a few other bits and pieces, would installing these add a lot to the bill?

cefiro Experienced

cefiro

Posted
  • Author
Posted (edited)

Those actually look quite good, if you get some then let me know, cheap as well, but are they any better than others??? Ive got to make the decision soon as I am doing the 100k service and these at the same time.

Big jimmystyle, if you are installing these then you have to remove the cam gear cover, the timimg belt, cam gears which is not an easy feat as there are a few steps to get everything off, I dont know what the bill will be but it wont be cheap.

Edited by cefiro
abu Grand Master

abu

Posted
Posted

Installation is easy, I could knock it over in an hour or so. I did it not to long ago in my R32 GTST and it was pretty straight foward

Its just picking the cam gears that's the hard part :P

Last time I used HKS cam gears and they set me back around $300~ but I don't want to be spending that much again, $200 and under is what the aim is as they all basically do the same thing

$129 for a pair is a killer price but are they too cheap to be good?

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