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· Registered
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Discussion Starter · #6 ·
this baby is 1.170" base circle intake and 1.207" exhaust
lobes are 281/299 @ .050"
duration at .200" and .300" = forget about it , its insane
duration at .500" lift ... still got 26 degrees there on the intake
 

· Butch
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8,210 Posts
this baby is 1.170" base circle intake and 1.207" exhaust
lobes are 281/299 @ .050"
duration at .200" and .300" = forget about it , its insane
duration at .500" lift ... still got 26 degrees there on the intake
What is it at .200" and .300"?

Are they all on 8620 cores, or 8660 your using?
 

· Butch
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8,210 Posts
cant spill the beans completely , imagine 26 degrees at .500" lift and work down .
So what your getting at is its like the Crane .4467" lobes but for much larger 55mm cores, mild to moderate seat and tons of high lift lobe area.

What are you on the seat @.020" about 304°?
 

· Butch
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8,210 Posts
316 / 336 at .020"
200/208 @ .200"
we have run 2.0 rocker ratio on this intake lobe... 1.014" intake valve lift
Its close to this lobe in appearance, not sure what your split is for the duration though

311 @.020"
282 @.050"
209 @.200"

317 @.020"
288 @.050"
213 @.200"

^^^ 55mm and 60mm

Amazing thing is, with that large core, they are not as violent as it may appear, I assume yours is the same on the larger core.
 
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