Adjustable cam gears.

[benm]

Has anyone done before/after dyno with this exhaust cam gear yet?

Is an aftermarket ECU 'required' for these or is it only an 'advantage' ?

I'm looking for little things to get me up over 210rwkw on the Std ECU/Turbo and this looks like the next step.

Whats the typical cost to have these installed + tuned at a dyno shop ?

Edit: I was also liking the rice factor of the HKS Purple+Blue

[Blackness]

GTS-t VSPEC: Do you think removing the VVT is worth the extra 10-15 kw for a car making around 190-200 kw @ the wheels?

[Sydneykid]

Hi Guys, I bought a set of Jun adjustable cam gears on the forum a few weeks ago. They appear to be standard Nissan GTR pulleys with the centre machined out and replaced with a steel adjuster. If they are standard Nissan teeth they will obviously last as long as they would unmodified, provided the centre line of the adjuster is lined up properly during the machining process. They have 5 adjuster bolts which should provide more than sufficient retention.

UniqueAutosports sell modified standard pulleys for $185 each for the standard weight and $195 for the lightweight ones. So, as long as they have the same accuracy of centring there should be no problems with theirs either.

If you are not looking for looks (the HKS ones do look trick) or extreme lightweight, these are viable options.

Hope that helps.

[GTS-t VSPEC]

I wouldn't bother loosing the VVT until over 250rwKW, and use the cam gears in conjunction with better cams.

Steve, Thanks for the link, what would the postage be? I have worked it out before, and the group buy idea is better as only one postage cost is needed.

See'ya:burnout:

[Steve]

GTS-t VSPEC,

costs:

http://www.greenline.jp/info.php

says:

The following table indicates the shipping costs to Zone 2, which includes Australia, New Zealand, USA, Canada and any country in Europe. For other countries, please contact [email protected]

Base rate (up to 1 kg) ¥3990

For each 500g more than 1 kg ¥525

Works out at about $55AUD for the first kg (ouch), but $14.50 for every kg there after, which is a bit better.

when were you thinking of getting these? Soonish I hope. I'm after 1 (for now - maybe 2 later), and wouldn't mind jumping on the group buy bandwagon

Cheers

Steve

[GTS-t VSPEC]

Steve,

Can you find out the weight of the cam gears, plus are there any additional taxes that need to be pay for goods coming into Australia?

I can buy them whenever, just trying to find somewhere which is cheaper than I can get them here.

See'ya:burnout:

[Steve]

Not too sure about taxes, have you had a chat to customs. From most of the feedback I have read, it seems that if it is under $1000AUD they dont seem to worry a heap - never know for sure though. I did get my turbo through, but the guy at the other end put it down as about $380AUD - they opened it for inspection, but didnt hit me any duty.

I will drop them a line, and ask about quantity for group discount and unit weight.

Steve

[GTS-t VSPEC]

That sounds good Steve, I'm more than happy to purchase them, aslong as I know what the actual landed cost will be.

See'ya:burnout:

[rev210]

4 degrees retard on exhaust works. I did mine. easy power.

[GTS-t VSPEC]

Rev,

I agree that 4deg. is just about right, but if you slightly adjust it around this position on the dyno then a little more can be had, but probably not worth the cost of dyno time.

See'ya:burnout:

[GiJOr33]

so on a car with a big turbo (like a HKS 3040) and the usual other mods like fuel pump, injectors, engine management (I have HKS FCONV, VPC and PFC-FCON), exhaust, intercooler. Would it be worth removing the VVT and getting a cam gear for both inlet and exhaust? It's an RB25DET, and what sort of cams should i go for? 256 Duration and 8.8mm lift? or bigger, to something like 264 duration and 9mm lift? What would the difference be between the two cams?

I'm liking the sound of the Toda gears myself! The top end power is pretty good so i'm more after some street usable mid-range at this stage. I've also read on the other CAM thread that you might be able to get the inlet cam slotted to allow adjustment and still keep the VVT.... is this true or not worth it?

Thanks

Andrew

[GTS-t VSPEC]

GiJOR33,

With a setup like that, then yes I'd do both cam gears. Sounds like a similar setup to what I'm going for.

Cam's I'd go for the 264's, but the 256's are also very good.

Yes, it is possible to slot the existing gear, but the VVT doesn't have sufficient impact to make it worthwhile doing at big horsepower.

See'ya:burnout:

[Rowdyr32]

A guy at work machined out the centres of my steel gears and replaced them with adjustable alloy centres (which he made as well). They allow +/- 4 degrees adjustment and only cost me $17 for the materials and a slab for the labour.

Guys go to a machining company with a design and all your standard gears in bulk and it will cost you **** all to get them modify.

Why buy wanky brand name gear? It doesn't make your car go any faster and it costs a fortune.

[JimX]

Rowdyr32 that is a good idea, but where do we get a reliable design from? I wouldn't know who to take it to in Sydney either.

[Pawley]

has anybody heard anything about UAS's custommade cam gears? I think they cost around 165, hell of a lot cheaper than the HKS ones.

[ricknismo]

so we've agreed 4 degrees retarded for the exhaust side.

What do you do with the other?

Do you need it?

[JimX]

Pawley, I think the UAS ones are made exactly the same way as Rowdyr32's are. That would mean they have like a $150 markup on them. Which I guess isn't over the top, but if you look around enough you can probably get it done cheaper (let's all ask Rowdyr32's mate if he wants to do some more for us )

[benm]

I generally prefer to use trusted brands for parts like this but it depends on the saving and quality in the end

[T0nyGTSt]

I am interested in the exhaust cam gear upgrade.

You can get an OS Giken gear for $250 so IMO that ain't much.

I wonder how much it would cost to get installed and tuned?

T.

[GTS-t VSPEC]

tlai909,

Where can you get the OS Giken ones from?

See'ya:burnout: