Man, i was about to get me a set of cams too. I guess you get what you pay for. I would really like to hear if anyone with the HKS have cracks?

 

Guys we have had two isolated incidence of this problem this would be the third. We are still waiting on one of them to send back his cams so that we can have them checked out. Our first production set are being used in a car and have about 18k+ miles on them. We have checked at every oil change the condition and checked for wear and nothing has surfaced on those at all, other than the paint on the lobs wearing off. Our first thought on this is that it is just the paint cracking do to heat on the lob and as the paint wears off they will go away, but we need to confirm this with a set. I have already PMed scherejs and told him that we would be more than happy to replace his cams with the V2 design if we can get his back so that we can pin point the problem.

We have spoken with the manufacture of the cams and they assure us it’s not the cam stock that it could be something in the way of heat or an install problem possibly do to not bleeding lifters properly.

We have also changed to the V2 design (polished lob) so that we can take one of the possibilities out of the equation.

Just so we can get the HKS has better quality thing out of this the billet cores we use are the exact same as the HKS cores they just finish them in house by sand blasting and painting them so they look pretty.

 

Heheh, if there's welding material on a cam then that's the problem hehehe. Cams are made on a sort of lathe, where they are ginded down to a certain spec from a solid peice. The exception i've seen is the stock cams we run, which are hollow. It looks like they are two halves fused togeher or cast.

 

Both my friends and my GSC cams had a ton of leftover material on the vertical edge of the lobe (the one that doesn't make contact with any other surface)...i figured it wouldn't be a problem...

 

Tomorrow, I will be taking off my valve cover to re-tourque my head studs, so I will take a picture of my cams to show you guys, and see if mine are the same problem. It just looks like little scratches on the lobes, and like what was said earlier, you can feel them with your fingernail. I dont think it would be a good idea, but who knows........ill let you see.

 

If you guys use the same cam blanks as HKS, how do they cast their logo into the cam? It's definitely not stamped or machined in.

 

So glad I payed the extra $100 for the HKS now.

 

not to hard to have done all you have to pay for the stamp a small $7k option when the cams are made. I opted to not do this and HKS did. They have a lot more cams they offer so it is worth it to them we offer two different types of cams it just isn't worth the money to us right now.

Greg

 

Okay, thanks for the clarification. I always wondered about that.

 

you guys should consider it just to differentiate between your two cams. There are no markings to tell whether it's a 272 or 264 cam, and short of the us trusting what's written in marker on the box, it's near impossible.

 

material like that causes premature lobe wear due to the camshaft being off balanced.

An age old saying comes to mind, "You get what you pay for"

 

great...

same here..."hindsight is 20/20"

 

and I doubt HKS and GSC cams are manufactured in the same place, they look completely different on the shafts them selves. They could be the same blanks and maybe the HKs machining is superior because i've never seen cracks on HKS lobes and I've never seen excess material on a camshaft

 

Mine are doing the same thing. I REALLY don't wanna have to yank these things.

 

Exactly.

I hope GSC is making it right with the 3 cases so far. Ill pull my valve cover in a few weeks to see how they are holding up.