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XFI reground cam change
I went ahead and put in my reground XFI cam. 3 hours from start to finish. It was as everyone described above. Torquier, better in lower rpm performance, smoother, suited to short shifting, and less throttle opening across the board. I like it!
The cam holds 2 valves open if you install it with the timing marks in line with the crank. This means that if the 3 cam bearings are not pulled down evenly, you are bending the cam. I noticed that if you turn the cam sprocket counterclockwise 1/6 turn, the cam lays almost flat and the hold down caps can be more easly pulled down evenly. Then turn the sprocket back to line up the marks for timing belt installation.
I put Redline Assembly Lube on the lobes and the cam journals for good measure. It started right up and I ran it at 1500 rpm for a few minutes to seat in. I also tweaked the ignition timing a little and dumped out the 90 weight transaxle oil after the first freeway test, and put in Mobile1 synthetic ATF. It shifts normally even though it is much thinner than 90 weight oil.
I got the reground cam from Delta Camshaft in Tacoma Washington (253) 572-2474. They said they are making a lot of cams for Metros. Mine came looking like brand new, hard to believe it was ever in an engine.
Somebody should make a short video "How To" for those back yarders who are nervous about changing cams. The hardest part was digging out the 4 little valve cover washers so I could see my cam!
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