Abrasive flow finishing

[Tuck]

At 10:24 AM 12/1/97 -0800, you wrote:

>Extrude Honing the stock cast iron 4 barrel intake manifold, head and cast
iron 
>log exhaust of an early 340 revealed (in CFM) the following changes from
end to 
>end.
>
>             Intake			Exhaust
>Lift	Before	After	Chg	Before	After	Change
>.050	  35	  38	 3	  31	  30	-1
>.100	  59	  78	19	  56	  57	 1
>.150	  84	112	28	  84	  82	-2
>.200	114	145	31	110	109	-1
>.250	142	164	22	127	127	 0
>.300	164	191	27	138	140	 2
>.350	176	203	27	143	151	 8
>.400	182	218	36	145	165	20
>.450	185	230	45	146	175	29
>.500	188	233	45	148	184	36
>.550	191	233	42	148	190	42
>.600	188	233	45	148	197	49
>
>Results on a Superflow 600 Flowbench at 28 inches.

Well that looks like (on the intake side)a peak of a bit over 20% increase
in flow.  Any idea what that translates to in terms of power output?


Justin "Tuck" Cordesman
SOLID BRASS-> Dancing with the devil in the pale moonlight.

The lips of a Strange Woman drip honey,
and her mouth is smoother than silk.
But her fate is bitter as wormwood...
sharp as a two edged sword.