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Adjustable cam wheels

tridentt150v

By tridentt150v,
in General Maintenance

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tridentt150v Grand Master

tridentt150v

Posted
Posted

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?

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2BNVS Veteran

2BNVS

Posted
Posted

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.

rtwin Contributor

rtwin

Posted
Posted

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.

Sydneykid Grand Master

Sydneykid

Posted
Posted
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:

blind_elk Grand Master

blind_elk

Posted
Posted

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.

tridentt150v Grand Master

tridentt150v

Posted
  • Author
Posted
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].

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