Re: (reground) cam went flat?
 

DLC stand's for 'Diamond like Carbon'. Trade name is Casidium.

Re: (reground) cam went flat?
 

Thanks for clearing that up.


AL.

Re: (reground) cam went flat?
 

My cams suck Al !
I .468 L 246 D
E .444 L 239 D

Don't need cams that big in a 4 valve per cyl. engine.

Your good Ryan, I can't even pronounce Casidium.

Re: (reground) cam went flat?
 

Hey...wow, my wrist pins are coated with that crazy casidium stuff.....wierd!:dontknow:;)

Re: (reground) cam went flat?
 

I'm still waiting for an answer

:happy1:

Frank why do you say your cams suck.
What's the problem.

My opinion your exhaust cams are too big.

I think you'll make more power with .228-.230 exhaust duration.

Pete
"Broken lifter Guy" :razz:

Re: (reground) cam went flat?
 

Pete,

Do you recall the worst oil tested in that article Marc wrote for "HOTB" about oil for our Zs a year ago? Well, guess what we were runnin' in Ami's flat tappet SBC? Yep!!

Ami had put over 3500 miles on that car since she bought it, and who knows how many miles were on that cam. So, when if wiped, "WTF!?" was my exact reaction too!

Making a long story short, I'm running Rotella in it now with a bottle of "the good stuff" from Crane to make sure the cam has what it needs to keep from wiping (again).

Question: Are you putting that additive you mentioned in your Z along with the AMO 10W-40 recommended by Marc, or have you been using some other oil?

TIA,

P.

PS. Flatout has our gaskets ready. I'll bring 'em w/ me to pizza nite on Friday.;)

P.

Re: (reground) cam went flat?
 

They must be good pins then, Destroyer. All my Titanium pins i have made are coated. on those...they have steel wear 'end caps', the steel end caps aren't coated, just the main part of the pin itself. i can post pics if anybody is interested. not trying to sidetrack this thread:blahblah:

Re: (reground) cam went flat?
 

Stange how only one side got wiped out, have no explanation for that??? Dont kinow why that would happen.
Id be curious to what spring rates are anyway.

Re: (reground) cam went flat?
 

There is no need for cams that big , especially in a 4 valve per cyl engine.
My opinion FWIW.

Marc did a super job on that engine. Those are MY cams.... That I wanted him to install , and they :thumbsdo:
I would have been much happier with smaller cams.

100 % correct Pete more power and better drivability :thumbsup::thumbsup:
I'd bet the car on the above statement.
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Back on thread........if done PROPERLY a regrind cam is fine.

Re: (reground) cam went flat?
 

Just proves out the old adage even with DOHC motors.
Better small cam with big heads than vice versa. I have an excellent article on cam selection discussing the really critical parameters for deciding on cam specs. There was also a software application that calculated those parameters for you based on primarily low lift air flow. I used it to spec a cam for my 350 SBC using TFS23d heads. I'll try posting the article when I get to my laptop.