2G Another camshaft identification thread.

[v8s_are_slow]

Never thought I'd need help in this area but these cams were sitting in my garage and was trying to see if I had cam seals that were new to replace my old ones. Pulled the seals off these (going over each lobe due to the cam gear that was installed) and after matching them up I went to put the new seals on MY cams. My cams are FFWD DKS3's which are basically HKS 280 regrinds. The seals just slipped right over my cams easily but was difficult to get over each lobe of these other cams below. So makes me wonder what they are. Are they stock? Something else? Not a camshaft expert so not really sure what measurements to be taking for the specs. I know the base circle is smaller on my cams so maybe that's why it was easier to get the seal off of it? Already searched here on the forums and Google. Y'all have any idea what they are?

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Compared to my FFWD DKS3's.

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And thickness of the washer that takes up for the smaller base circle.

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[DSMPT]

I know the base circle is smaller on my cams so maybe that's why it was easier to get the seal off of it?

Yes, I think that's the case. More lift regrinds = Smaller diameter base circle. Because more material has to be removed from base circle of base cams.

 

[v8s_are_slow]

Wondering how to tell which cams are larger when comparing regrinds, to non. My regrinds are back in my car though being that I don't know anything about the others.

 

[DSMPT]

At least you can approximately tell how much valve lift the set has by measuring cam lift number with a caliper. If that set is stock, IIRC the cam lift should probably be somewhere between 5.0~5.5mm. (Approx. 8.5mm~9.35 valve lift) It depends on which 4g63. Measure its base circle diameter and subtract that number from 1.378" (the number in the pic). That's would approximately be its cam lift number and the cam lift number multiplied by 1.7 would be its valve lift number.

 

[1990TSIAWDTALON]

I don't know if this is any help but I have a spreadsheet with cams

 

[v8s_are_slow]

I'll take a look. Thanks!