Jump to content
SAU Community

Recommended Posts

How makes the better adjustable cam wheels for a '98 SII Gts2.5t?

I only want an exhaust cam at this point [or so I have been advised].

I know they are about $200, and HKS, Tomei, OS Giken etc etc make them, but is there any difference in applicacation?

Link to comment
https://www.sau.com.au/forums/topic/52243-adjustable-cam-wheels/
Share on other sites

im goin for HKS but alot of ppl told me the Tomei ones are best...

i also heard that some ppl change only the exhaust side in gts-t's and not the inlet side...would like to have some comments on this too if anyone knows...

cheers...ben.

I have had HKS items, and I would say from my experience steer clear. They wore down in no time. I think they're made from aluminium or something, thats why they wear faster. I believe Tomei items are stainless steel and so last heaps longer.

If someone would like to correct me here these please do. I'd rather know the truth than talk outta my arse, but my HKS experience wasn't a good one (WASTE of MONEY) and what I know I got from my engine builder.

I have had HKS items, and I would say from my experience steer clear.  They wore down in no time.  I think they're made from aluminium or something, thats why they wear faster.  I believe Tomei items are stainless steel and so last heaps longer.

If someone would like to correct me here these please do.  I'd rather know the truth than talk outta my arse, but my HKS experience wasn't a good one (WASTE of MONEY) and what I know I got from my engine builder.

Hi guys, HKS pulleys are made from hardened alloy and seem to be the lightest, I haven't weighed all brands though. I have seen 1 pair of worn HKS pulleys and the cambelt was so tight you could play it like a violin. I have seen many pairs not showing any wear, but the cambelts were tensioned correctly. I have never seen a stainless steel camshaft pulley. They would weigh so much it would be like having 3 flywheels anyway.

I use the Jun adj pulleys, they utilise the standard Nissan outer with a billet alloy inner to give the adjustment. So the durability is the same as the standard pulleys with regard to teeth. They are very boring to look at, but I always run covers so you can't see them anyway.

If someone wants to send me one of every type of pulley, we have a rockwell tester so I can confirm the teeth hardness of each brand. It's not a destruction test, you will get them back able to be used. If someone who had a problem with the HKS pulleys had done a proper hardness test and found them to be deficient I am sure they would have gotten more than their money back.

Hope that makes sense :uh-huh:

Try the ones from Speed Technology / EFI Hardware in Melbourne. They don't come in pretty anodised colours, and they don't have degree markings on the wheel, but they are a lot cheaper than the "brand names", and they do exactly the same job.

im goin for HKS but alot of ppl told me the Tomei ones are best...

i also heard that some ppl change only the exhaust side in gts-t's and not the inlet side...would like to have some comments on this too if anyone knows...

cheers...ben.

Its to do with the VVT [variable valve timing], if you install a cam wheel on the inlet side, you loose the VVT. The loss then outweighs the benefit. Thanks to SK for this advice.

My debt to SK increases by the hour...........................[i'll end up having to sell my body to science just to get enough money to pay him].

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • The alloy coolant reservoir has a sight glass, so as long as I can see coolant in the sight glass it's GTG, as for PS, it isn't anything catastrophic if it gets low, and as it hasn't lost a drop since I have owned the car I cannot see it being an issue, even after putting the "big block" 2.5 in....LOL The only time it gets slightly messy is at oil changes, as the oil filter sits above the frame, and I need to use a plastic bottle with its bottom cut off to catch the flow when loosening the filter
    • Good on you for taking on the job, but it is a big one. Even if you have bolt on manifold and turbo, you will need: Post throttle pressure source to boost controller to wastegate (and FPR, and ECU/MAP sensor) Pre throttle pressure source to top of BOV(s) Oil feed - you can take that from the standard port in the middle of the block Oil return to block under the turbo - this is much trickier than it seems to route a decent/wide pipe past the manifold. You really can't use rubber hose because it is way too hot there, and also the oil out of the turbo core is a bit frothy so it needs to have a decent diameter Water feed - you can take that from the standard port in the rear of the block. Water return - mine runs to a T into the heater box return, just make sure you don't create a high point making bleeding hard. All of those lines should use 200 series style teflon braided hose with heat shielding because everything needs to be routed past the manifold. Also a turbo beanie is a really good idea to minimise the chance of the car catching fire (under bonnet lining in particular) You also need to decide a cam cover breathing solution as well, will you vent externally via a catch can (probably illegal) or return to the intake (plumbing required and can oil up everything over time) Keep in mind the intake and exhaust piping in the engine bay will be custom so you either need to be able to fab ally and steel or have someone you can get a car that isn't running to. Get the wideband fitting welded into the dump pipe at the same time. Also, just my opinion, a screamer pipe attracts attention and doesn't add power, I'd plumb it back if you want to be allowed to keep the car on the road. BTW do you know anything about how healthy the motor is, and what power you are targeting? Doubling or tripling the factory power on an unknown motor is a little risky. Also fuel system will need some attention (pumps, high current hanger, direct power and earth feed, injectors etc)
    • Wrinkle black will be a thing for both
    • As I wait for parts to be delivered, I have managed to procure via a contact a R32 Nistune ECU......for now I just want to monitor what the car is doing but eventually.......who knows where we go 😂
    • To back this up, I'm always looking on the outside, seeing the level, and then opening it up anyway, as I'm worried the level I've looked at, is more so a scunge line. Then you end up dipping your damn finger in it too depending on the type of tank you're looking at just to make sure I'm not going insane.   PS, Mark, polish up the none moroso one a bit and then give it a clear coat. The Moroso one looks to be way shiner (not mirror polished, just shinier) and it'll still look weird with the two different alloys beside each other. Either that, or Id probably paint them a flat black...
×
×
  • Create New...