Valve seat pressure & Cam. Options/ alternatives?
Wondering what the intake & exhaust seating pressure is.
This is a S.III 4.2L Also, wondering if there are any other OEM cams that may be able to unterchange & give a little more lift & duration. |
here ya go...
178-E Camshaft - 3.8 - 4.2 Six Cyl - Kelford Cams
1300$ Cam and springs. Also try webcamsafts. They can grind up just about any cam...for a price. Read this from page 63.... How to Power Tune Jaguar XK 3.4, 3.8 & 4.2 Litre Engines - Des Hammill - Google Books Spring pressure is on the bottom of page 67 |
Thanks buddy!
The factory Cams aren't going to be that great for boost.
Those valves are designed for a NA build & for t offer enough seating pressure, so we're gonna have to shim the OEM valves, or see if there are any other conparible springs from another engine that we can retrofit. |
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