3 Valve Coyote Valvetrain

[roverman]

Anyone familiar with these ? I'm using the , finger roller rocker and dead-end hydraulic lifter/rocker pivot.  I measure .815" pivot centerline to roller centerline and likewise to valve tip center line. My math suggest a 2 to one ratio ? In other words, .200" at the lobe would produce .400" at valve tip.
                                                                          Thoughts ?  Thanks, Art.

[mgb260]

Art, Are you looking at the pre-Coyote 5.4 Triton? Coyote were all 4 valve.

[roverman]

According to Comp. Cams, Coyote 3 valve. They claim rocker ratio at 1.825/1. Hyd. roller cams to 6.800 rpm.  but only .450" lift, int./ehx. I'm using a 2.05" int. Not enough lift. i think I'm designing/building a 3 cyl. Buick ? Buick V6 Stg II head, so why not ?
                                                                                                             Art.

[mgb260]

Art, Pontiac had a slant four/half of a V8!

[roverman]

Yep, had one in my 62' Tempest convertible. 3.2L, shook like a 180 crank in a big v8 ! Motor mounts were like pools of jello. They did a good job, but motor shook so much, made a permanent stutterer, out of 1bbl. carb./lol.
  This sort-of Buick. 3 cyl. is for a 800 lb., all-aluminum car. We know how I like aluminum-right ?
         I need a on rear wheel transaxle. Snow mobile or one of those 3 wheel cars ?
                                                                                                  Onward, Art.

[Jim Stabe]

Art, why don't you ever post pictures of all the bizarre projects you are working on? Inquiring minds want to know.

[roverman]

I think I'm blocked,( in case I'm a contagion)....