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B6304 engine, 181 HP vs 204 HP changes 900

uid 19's pic
posted by  jbowers on  Wed Feb 4 06:33 CST 2004
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last visit: Sun Jan 22 13:49 CST 2012
[RELATED]

If I were you, I would start by having the cams set with the tools and just make some small changes from there by loosening the bolts that hold the pulleys to the cams. (Being sure to mark things carefully before making any changes so you can return to the design location at any time.) I have no idea how close things might get if you move by a tooth.

Anyway, which cam will you move and in what direction? In a single cam engine, retarding the cam, as I remember my Triumph TR4 competition prep book, enhances higher RPM performance. I think the concept is that with the ram effects taking place at higher RPMs having the valves operate latter allows for more scavenging and "packing"????????

My $0.02!
--
'96 965 with 16' wheels at 112K. Had '85 745 Turbo Diesel for 200K.






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