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The mkiv Supra Owners Club

Cam Gears


gregsupra4

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Thanks for that Alex, but now that the winter is upon us the old supe is having another make over.

She will be sporting 2 x Super T70 turbos, 1000cc injectors, veilside intake manifold, new pistons,rods,crank plus new AEM and lots of other goodies.

Just thought that I might see if anybody had a set for sale rather than go through ebay.

 

See Ya.

 

Greg

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I had HKS adjustable and they had worn so badly they stripped the teeth on my newly fitted cam belt. I have heard many people say the same (especially in the USA) and have reverted to stock gears.

 

I also remember talking to CW and he asked a pertinent question. He wondered how often I had adjusted them from the stock position? The answer? Never.

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Just looked at Gareth's link...the dyno looks good after 4000rpm with the inlet cam...but look at what it does to the low down part of the graph.

 

The exhuast timing was overall benefitial without too much compromise. Possibly less agressive changes to the inlet cam will further aide it.

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Hi CJ,

 

Ok if I continue to use the stock cam gears how can I adjust the duration of both the inlet and exhaust without changing the cams themselves ??????

:help:

I was lucky (if spending more money can be classed as lucky) in that I used uprated cams and hence the reason behind not needing to use adjustable gears. I went with 256 inlet and 264 exhaust.

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Hi CJ,

 

Ok if I continue to use the stock cam gears how can I adjust the duration of both the inlet and exhaust without changing the cams themselves ??????

:help:

 

Even with the adjustable gears, you can't change the cam duration. You can change the lobe centres and the overlap.

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Guest Terry S
The new ones are steel the old are Ali - should be able to tell which type they are ;)

 

You sure they are, and not just ali with a better coating?

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Guest Terry S
That's what I read...but what I read could have been wrong.

 

 

From HKS USA site

 

HKS Cam Gears are made completely of anodized Duralumin with nickle plated gear teeth

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Hi CJ,

 

Ok if I continue to use the stock cam gears how can I adjust the duration of both the inlet and exhaust without changing the cams themselves ??????

:help:

 

You can't change duration with adjustable gears anyway. You can only change the timing. To change duration you need new cams.

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