I found a diagram showing the 2F and 3F-E's camshaft timing in a 1988 FJ62 "New Features" manual posted at the Yankee Toys site. It shows the 3F-E camshaft is advanced 5 degrees compared to a 2F cam...I don't recall it saying anything about lobe lift and/or duration changing, and the diagram shows that the overlap is the same.
My post with the diagram is here, along with Mark W's response and insight:
https://forum.ih8mud.com/showpost.php?p=977948&postcount=64
https://forum.ih8mud.com/showpost.php?p=977948&postcount=66
From this thread (a good one!):
https://forum.ih8mud.com/showthread.php?t=79962
Steve
My post with the diagram is here, along with Mark W's response and insight:
https://forum.ih8mud.com/showpost.php?p=977948&postcount=64
https://forum.ih8mud.com/showpost.php?p=977948&postcount=66
From this thread (a good one!):
https://forum.ih8mud.com/showthread.php?t=79962
Steve
Mark W said:I don't know that the 2F cams were the same when they cam out of the factory. But if you order one from Toyota, they will give you the latest part number for any 2F. The 3FE cam is advance (or retarded... I can't remember right now) 10 degrees compared to the 2F.
I have put the 262 in a couple of 3FEs. It works GREAT!. I;ve got one in my wife's FJ62 and I'll probably be putting on in my Bro' in law's FJ80
I've use the old Clifford 270 (advertised) cam, which is pretty much (exactly?) the same as the Downey HP cam (I'm pretty sure that in the past at least, the Downey cams WERE Clifford cams). I could not tell any difference in real world mid range and top end performance of the two grinds. Possibley a little les umph off idle with the longer duration stick.
I can also get a shorter duration cam 250 (advertised) with 211 @ .050. The 262 (advertised) is either 214 or 217... I can't recall as I sit here). I've only used this one once and didn't see any reason not to go wiuth the 262 after I gave this one a try.
Mark...