Quote:
Originally Posted by strych9
Using Mobil 1, but switched to 10W-30 instead of 5W-30. Despite other opinions, high ZDDP has no real benefit for a roller cam. Flat tappet, yes...roller, no. While not crucial to our engines, high ZDDP won't hurt anything either, as long as you are running without catalytic converters. High ZDDP with ruin them.
Mobil 1 has an excellent film strength rating, which is very important for high-RPM engines that have racing valve springs. The high valve-spring pressures can ruin a cam if your oil has a weaker film-strength rating. Pennzoil Ultra is also an excellent "over-the-counter" choice. You can compare ratings in an older thread I started here: http://www.camaro5.com/forums/showthread.php?t=304435 |
As for ZPPD not being helpful to roller cams, I seem to think other wise new cams have been eating them self up at a staggering rate. With the higher spring pressures on the lobes the zinc is a very welcome thing. Since oil manufacturers started lower the levels of ZPPD in oil, comp and other company's have seen an increase in failures on there roller cams. Take this for what you want but a little research on the topic will uncover the truth. For this reason I use Amsoil Z-rod.
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ATI Super Damper, Katech C5R Chain, Jannetty 470 Comp Cam, Comp Valve Springs, Mellings Oil Pump, Manley Push Rods, Comp Tringion Upgrade, Cold Air Inductions Intake, 1-7/8 American Racing Headers w Cats, MBRP 3 Inch Exhaust, RX Catch Can, Eaton Tru Trac, 3.91 OEM, DSS Drive And Half Shafts, LPW Diff Cover,3 Inch Noweeds, Amsoil Z-Rod, Tuned by Jannetty Racing
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