Looking for a reputable SC cam machinist
 

One of my cams on my 930 engine has a lobe that is worn down about .100''. I'm looking for someone who can (do they weld and then machine it??) bring it back to factory specs. Can anyone point me somewhere? Hopefully at a decent price. I don't wanna run into one of those shady Motormeister type situations, lol..

This shop does excellent work:

Web Cam Inc.
1815 Massachusetts Avenue
Riverside, CA 92507-2616 USA
webcamshafts.com
Phone: 951.369.5144
Fax: 951.369.7266
Monday - Friday
8:00AM - 4:30PM Pacific

Call them and discuss your cam problems.
I am not affiliated - just a happy customer.
They just did our 964 race cams to 20/21 and cut off PS connecter.

Regards

Elgin and Web Cam are the two I've seen recommended around here the most.

Elgin did my cams and they came out looking great.

here's who I use. excellent.

Dougherty Racing Cams

Web gets my vote. Had a pair of hardwelded S cams that came out of my racecar engine and they looked great after years of hard use (and very frequent oil changes) on the track. Sent them a set of old Carrera cams as cores for 120/104 cams and they came back looking great and in a very timely fashion- two weeks plus mail time there & back

Webcam........
 

Kevin,

I just installed a Webcam camshaft (grind #:171e/149i) and when I inquired why there is no marking on the shaft that would help in installation, their answer was: "there are markings on the end of the shaft inside the engine (???). But nothing on the outside end of the shaft". Unlike the OEM shafts in 911 engine, either a dot or '930' marking is stamped on the end camshaft. I find it odd to have the ID of the camshaft located on the shaft that goes inside the engine rather than the one exposed outside. BTW, why did they (Webcam) referred us to a Porsche mechanic across the street to answer our technical question/s? Don't they have their in-house tech service? BTW, these cams look good and costs a fortune.

http://forums.pelicanparts.com/uploa...1340920863.jpg

Tony

I just installed a set of Web cams as well since I still can't get my left hand cam back from camgrinder who has had it for 5 months. Web was very service oriented, cams were in hand only days after ordering. They were not marked on the end but the key slots were aligned correctly so installation was a snap. Great service.

Tony,

Yes WebCam does indeed stamp their cams on the "tail" end of the last cam bearing. I'm sure they do that because it's a big space that gives them room to do their manual stamping, which includes the WebCam name, their cam identification name (I think your 171e/149i is their version of the "Mod S cam" that other cam makers have also made?) and the initials of the guy who did the work on the cam.

I can't answer why they referred you to the guy across the street. Maybe they just make the cams and would prefer to leave the hands-on experience of install and performance to the guys who work on the Porsches on a regular basis?

My cams were OEM cores, so the dots were already on there. Good to know the woodruff key slots are a good alternative alignment starting point.

Web does give you a pretty cam. It's lobes are all coated in moly dry film to help with initial break-in. But I found that the moly can rub off when you've got a high lift cam and strong racing valve springs. So I had to make sure the moly film smearing didn't create a buildup of moly goop between the rocker arm pad and the cam lobe, which would throw off your lift measurement & valve lash/clearance.

That I noticed too......
 

Kevin,

The coating started peeling off from the cams specially after numerous manual cranking of the crankshaft during the cam timing set-up. I'll re-check the lift measurement values again before sealing the valve covers. Thanks for the tip.

Tony

Yep. Exactly what I experienced.

Thanks for the helpful replies guys. Ill be sure to call Elgin and Web soon!

For a reference point, Elgin charged me ~$500 and turnaround time was a week for my SC cams.

As I understand from our engine builder the cams need to be oiled before installing and that will take care of the moly dry film coating issue.

I agree with your comment about referring install and performance questions to engine builders -- WebCams just machines cams -- like other machine shops that do heads or crankshafts...the engine builder is the ultimate expert. Our builder sent the cams to WebCam and talked to them directly. I worked directly with EBS on the pistons, cylinders and valve springs. Our shop is very easy to work with.

...hope this helps a bit...

Regards,

I use assembly lube on the cam lobes (I think the most recent brand I have on the shelf is Permatex Ultra Slick) and the moly film still got rubbed off. I suspect it's the steep ramp angle on the 120/104 cams and the racing valve springs?

I'm not worried about it. It rubs off regardless, once the engine is running. It's just a protective film for intial startup. It's not intended to have any actual permanency

Awesome, i just contacted Elgin. I'm only sending in one cam as the other is in good condition. They quoted me at about $300, which is great.

ask webcam to not coat the cams. just use the red break in oil provided. ask them for a few extra tubes.

no cam manufacturer will scribe or stamp anything on the OD of the body of the camshaft because of the higher risk of a stress failure

I like to use a light coat of motor oil when timing cams so I can get a more consistent reading on the dial gauge. After timing the cams I clean off the motor oil and load up the lobes with moly assy lube.

John Dougherty delivered an amazing experience for me - fast, informative, great price, etc. - but I understand his lead times can vary greatly as he is a one-man show.