Cam Tower Restrictors - Good for Initial Break In?

[kstylianos]

Posted this in the Engine Rebuild Forum, thought I'd repost here for more exposure.
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Not that I'm at the point for the initial 20 minute break in run yet, but was reading Waynes break in procedures tonight and thought the following:

If the first 20 minutes at 2K RPM are when the rockers and cam form their wear pattern, then they will probably benefit from the greatest amount of oil possible at this crucial time.

I wanted to perform the cam tower restriction upgrade while I'm building the engine, but was thinking if the cams and rockers will benefit from more oil during this break in, is it better to keep the larger (original) cam line fittings and perform the upgrade at a later time when the cams/rockers are fully broken in?

I know, I've heard the stories of guys who've run thir engine w/ the valve covers off and have seen 'plenty of oil' and I'm sure if Porsche suggested this upgrade, its probably fine. Just curious if this is the right time to perform this upgrade.

Thoughts?

[Jim Richards]

Charlie, if your uncertain, you can always wait until after break-in. It's a 5 minute job even with the engine in the car.

[kstylianos]

Jim,

I think I'm worrying for nothing and Wayne suggests doing this upgrade during the build process, but was just curious. I think I'll leave the original larger ones in place and do the upgrade with the 500 mile valve adjustment.