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stock cam questions

stock cam

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#1 87redcat

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Posted 06 March 2017 - 07:56 PM

Ok for all you gear heads that understand this better than I...

I have a rebuilt njv head I'm going to put in the wife's 86. Have a new short block I'm putting together for it. Head came with no cam.
I can use the one in her car which has about 130,000 miles on it, or drop in the schnider 284 I have or order one from ebay.

Look at this on eBay http://www.ebay.com/itm/172255344368

The ones on ebay say stock but show a 292 lift??? Way too much imo for stock.
Also, Dad has a listing for a stock cam (out of stock) that showes for turbo and non-turbo.  I thought they were different grinds.

Comments?
Thanks
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#2 scott87star

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Posted 06 March 2017 - 07:58 PM

Auto or manual?  I would use the 130,000 cam for sure unless it's a manual then I would entertain the 284 but be prepared to swap it back to the stocker when the wife doesn't like the lack of 2500 rpm grunt.
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#3 87redcat

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Posted 06 March 2017 - 09:34 PM

auto... Pulling the cam out of her car was my first choice.  I have another complete jet valve head but Im unsure what car it came off. Looks like an older valve cover that was on my buddies old Sapporo.

Thank you
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#4 Dad

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Posted 07 March 2017 - 05:35 AM

That is a Cific camshaft. for Mechanical rockers,  when I asked cific about them they said not for Hydraulic  however the other sellers list them for both and  started to just ignore me when i pointed that out to them.  Considered selling them myself  but looking for Hydraulic cams which seem to be unicorns now.


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#5 87redcat

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Posted 07 March 2017 - 08:48 AM

I saw the ebay sellers are pushing the cific cams.  Wasnt sure about them.
Thanks
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#6 mbruneaux

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Posted 10 March 2017 - 10:59 AM

How do you tell the difference in a hyd cam and mech cam?
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#7 88351wtsi

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Posted 10 March 2017 - 01:26 PM

^^^ good question.
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#8 importwarrior

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Posted 10 March 2017 - 04:22 PM

that's a great question!!

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#9 Turbo Cary

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Posted 10 March 2017 - 07:04 PM

View Postmbruneaux, on 10 March 2017 - 10:59 AM, said:

How do you tell the difference in a hyd cam and mech cam?

This was answered in PQ's write ups. I believe there was a stamp or something on the shaft. Or you could just roll the dice and run one.

Think about this, unless the lift is different, the durations are probably really close between hydraulic and mechanical. There were valve length differences so it is probably more of a lift difference. If the transition from mechanical to hydraulic setups coincided with the change in valves, then to tell the difference you could measure camshaft lobe height and compare it to a known hydraulic or mechanical camshaft.




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