GETTING THE "cam" SHAFT from VW munufactures.

Mark H · Post by **Mark H** » Fri Jul 09, 2004 2:40 am

I think all the new cam blanks are "chilled Iron" Thats why they are harder. I guess. who the heck knows? All I know is the new Scat lifters don't seem to have problems anymore ...thank god. And the same old crappy Engle cams I've always used (chilled or not) work fine with them.
In my opinoin if they would have left every thing the same (cams,lifters and oil) everything would still be fine and there would be no "Flat cam" problem.
Oh and also it would be nice if Scat never made a lifter at all because I think their old lifters contributed greatly to the flat cam phenomenon.

DRD · Post by **DRD** » Fri Jul 09, 2004 3:33 pm

For what it's worth, I have a well broken in web 121 on a new style SC1 billet, scat lifters, that was ran on Jakes DTM test engine, dynoed for weeks, and beating to death, and I do mean BEATING!.
The cam and lifters look perfect.

The cam is going to it's new home to get bet to death some more...
.

turbowd57rag · Post by **turbowd57rag** » Sat Jul 10, 2004 2:16 pm

Don't the lifters and cam surfaces "Work Harden" during the break-in process? Or is / was that another myth

Pete

turbo_bob · Post by **turbo_bob** » Sat Jul 10, 2004 5:57 pm

turbowd57rag wrote:Don't the lifters and cam surfaces "Work Harden" during the break-in process?

Yes they do, but if the lifters have porossity or incorrect Rockwell they wont last.

That is the good thing about steel billits, induction heat treated, chilled iron, ceramics, they dont need break in.

Tom Simpson · Post by **Tom Simpson** » Sat Jul 10, 2004 9:36 pm

I have built (and taken apart) many motors over the years. I have seen Old used cams with old used lifters thrown together and last with no problem. I have seen new cams with new lifters fail in short order. I don't seem to have any luck with Scat's lifters. I love all their other products, but I will not use thier lifters.
My race motor has Scat Lube-a-lobes in it with about 3K mi. and over 200 passes. Tear down showed them to be pitting, but not that bad and the lift is still there so it will stay for now.
Webcam/lifters always look beautiful on teardowns. I have a hard time believing they are just re-packaged Scat lifters. Night and day difference in my book of experience.
Here's an interesting story: I have a spare STF motor that I threw together several years ago. I put a good used Engle 125 cam with a mix of lifters. Most were Brazilian "Premium" brand, a few were good used Scats. All the parts were used and lifters still had proper "crown" in them. Tear down showed the Scats to be pitting, the others are fine. I'd consider this to be a pretty difinitive test that the lifters are the problem...

ErikTheRed · Post by **ErikTheRed** » Sun Jul 11, 2004 2:04 am

Tom Simpson wrote:Webcam/lifters always look beautiful on teardowns. I have a hard time believing they are just re-packaged Scat lifters.

I talked to Debbie @ Webcam several months ago, as well as a few others "in the know", and Web lifters are indeed Scats.

Tom Simpson wrote:Here's an interesting story: I have a spare STF motor that I threw together several years ago. I put a good used Engle 125 cam with a mix of lifters. Most were Brazilian "Premium" brand, a few were good used Scats. All the parts were used and lifters still had proper "crown" in them. Tear down showed the Scats to be pitting, the others are fine. I'd consider this to be a pretty difinitive test that the lifters are the problem...

Good story Tom, but for every one like it theres gonna be another from someone else that contradicts it--- such as mine, posted earlier on this thread.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Mon Jul 12, 2004 7:15 am

The Web lifters have a different "Face" on them than the Scats do...