I have been messing around with hotrods about 25 years.. :cool: Worked as a machinist and built a lot of motors over the years..I have been out of the loop about 8 years..Just built a new motor for my 82 Suburban and plan to put it in this week..I see allot of posts about wiping cam lobes any particular reason why ??
Troy
Oh ya Im using a compcams XE262H :D
.030 over 350 76cc 882 heads Z28 springs
New TH350 trans

Lifter quality??? too much valve spring pressure??? the great cam God knows for sure :D

Maybe I am just lucky but I haven't lost a cam since I learned about EOS in 1967.

One thing that Harvey and I discussed the other week is sthat since there is only one manufacturer now, ---Stanadyne--, The bevels at the edge have become very important. A lifter with a lot of bevel may cause some digging in that a smaller bevel, or a completely flat bottom with no bevel, would not have. Factory hydraulics stay over .030" away from the edge, and current solid designs run from mild at .021" to very radical at .014". A wide bevel may eat into the cam/lifter interface.
I don't design cams with .014" from the edge, and only big low-lift cams are at .021", so I'm looking for some bevel-less solid lifters.....

UDHarold

Originally posted by UDHarold:
One thing that Harvey and I discussed the other week is sthat since there is only one manufacturer now, ---Stanadyne--,
UDHarold WTF :eek:

I must have missed that one!

I thought there were like three grinders...
What happened?

Harold,

You better start thinking about writing that book about your memoir's on the history of Hotrod Cams!!

I bet it would sure make good reading........

pdq67

Stanadyne ----- He means lifters.

Wouldn,t it also be safe to say that to some degree, we are now more aware of failures due to the information age that we are in??

If we were not all together on sites such as this one, we would'nt be aware of the failures that are happening(or at least as many as we are).

I have always said that just because you don't know it's happening, doesn't mean that it's not. :D

Originally posted by ssal396:
Wouldn,t it also be safe to say that to some degree, we are now more aware of failures due to the information age that we are in??

If we were not all together on sites such as this one, we would'nt be aware of the failures that are happening(or at least as many as we are).

I have always said that just because you don't know it's happening, doesn't mean that it's not. :D I agree with this, also keep in mind we tend to be more vocal when things don't go as planned. I also think the hobby has grown over the years and if the failure ratio were 1 in 100 twenty years ago it would be the same ratio at 100 in 10,000 today...

Thanks Guys graemlins/thumbsup.gif I shall not worry and hope all goes well on the break in ;)

Harold,
If one company is making lifters... do companies like Lunati,compcams,crane set there own specs :confused:
Thanks again graemlins/beers.gif
Troy

Human nature wants to blame others for mistakes (talking about me). I bought a cam once and wiped out the fuel pump lobe because I used the wrong fuel pump rod.

The original cam was a roller from GMPP. I then decided I wanted to try a bigger cam from a private company. It was a roller as well; I used the same fuel pump rod (safe assumption I presumed). It chewed it down in a matter of seconds probably. (For the record I did consult the grinder on what I need to do for installing it.) At first I didn't understand why it happened so I assumed it was an error in the hardening process. Well after some time I discovered that GM grinds their rollers on a stronger/harder bullet (or so I assume they do). I put the new cam in with the understanding that all I need to do was switch camshafts. Well I was wrong; I needed a lighter fuel rod as well.

So my lesson was learned. Don't take anything for granted, even the little things. And ask several people on what needs to be done to make components work together.

My friends SBC 355 have eaten 2 cams in the last month. We honestly no understanding why. At this point it doesn't really matter because he's going to buy a new short block (his decision not mine).

Don’t get me wrong, we’ve had some good luck with them. Heck I even showed a guy who had been drag racing for quite sometime how to degree one. But when they don’t work right it leaves a mess.

So that's my little story about camshafts. They are interesting components. So interesting it seems like most the post on this board are tied into camshafts in one form or another. But they can be a real pain in the a** when they don't work right. Or if the installer doesn’t know what their doing graemlins/clonk.gif

Human nature wants to blame others for mistakes (talking about me). I bought a cam once and wiped out the fuel pump lobe because I used the wrong fuel pump rod.

The original cam was a roller from GMPP. I then decided I wanted to try a bigger cam from a private company. It was a roller as well; I used the same fuel pump rod (safe assumption I presumed). It chewed it down in a matter of seconds probably. (For the record I did consult the grinder on what I need to do for installing it.) At first I didn't understand why it happened so I assumed it was an error in the hardening process. Well after some time I discovered that GM grinds their rollers on a stronger/harder bullet (or so I assume they do). I put the new cam in with the understanding that all I need to do was switch camshafts. Well I was wrong; I needed a lighter fuel rod as well.

So my lesson was learned. Don't take anything for granted, even the little things. And ask several people on what needs to be done to make components work together.

My friends SBC 355 have eaten 2 cams in the last month. We honestly no understanding why. At this point it doesn't really matter because he's going to buy a new short block (his decision not mine).

Don’t get me wrong, we’ve had some good luck with them. Heck I even showed a guy who had been drag racing for quite sometime how to degree one. But when they don’t work right it leaves a mess.

So that's my little story about camshafts. They are interesting components. So interesting it seems like most the post on this board are tied into camshafts in one form or another. But they can be a real pain in the a** when they don't work right. Or if the installer doesn’t know what their doing graemlins/clonk.gif