Playing with cylinder heads.
Let's play with cylinder heads.
I found an old unusable 587 head someone had destroyed..and so I ground a 2.02 tulip valve that has a tiny 30 backcut into it and thought I'd just widdle at it and play with some dykem...like wet flow but not but like, well..
Why? Just because. Felt like ventilating a j head maybe for the sake of more work on some that are already flow huge and I wanted to see the turbulence effect the suspended liquid. The heads were 'ported @1.88 by who the heck knows. They went to the 45 doing it... so some short at the very top was not there .. but it does [email protected] then [email protected] and [email protected].
Remarks..
It yanks at the dog leg.
If you flow all the straight halfway in if picks up a hair.
If you lay your hand flat at the roof it picks up a few cfm as well.
It only used up an hr.
That's the report card so far for this junk.
72
142
200
241
255
243
235
See it just pulled off the floor before the turn down and then fly out the far side.
There is much that can be done still, though it wasn't the best starting point as a someones previously aborted core.
Let's play with cylinder heads.
I found an old unusable 587 head someone had destroyed..and so I ground a 2.02 tulip valve that has a tiny 30 backcut into it and thought I'd just widdle at it and play with some dykem...like wet flow but not but like, well..
Why? Just because. Felt like ventilating a j head maybe for the sake of more work on some that are already flow huge and I wanted to see the turbulence effect the suspended liquid. The heads were 'ported @1.88 by who the heck knows. They went to the 45 doing it... so some short at the very top was not there .. but it does [email protected] then [email protected] and [email protected].
Remarks..
It yanks at the dog leg.
If you flow all the straight halfway in if picks up a hair.
If you lay your hand flat at the roof it picks up a few cfm as well.
It only used up an hr.
That's the report card so far for this junk.
72
142
200
241
255
243
235
See it just pulled off the floor before the turn down and then fly out the far side.
There is much that can be done still, though it wasn't the best starting point as a someones previously aborted core.