First day with my new die grinder (porting heads)
12-12-2005, 09:08 PM
#21
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Originally Posted by GuitsBoy
Okay, blending the seats im pretty clear on, but what about the lower par of the bowls? Most say to do 90%, 1.800" specifically, just wondering if you eyeballed them or you used something to measure, or maybe you didnt really open that part up too much yet?
Did you take out the rocker bolt boss yet?
12-12-2005, 09:11 PM
#22
Originally Posted by Bo White
Get a stock valve(intake and exhaust) and have a mchine shop turn em down to 1.8/1.395 and then use them as a go/no go guage.
12-12-2005, 09:16 PM
#23
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Originally Posted by GuitsBoy
Stock valves I dont have, but a machine shop, i just happen to have. Ill find something to turn down in a lathe. I ported my heads by hand while surrounded by 5 perfectly good CNC machines... hows that for DOH!
12-12-2005, 09:24 PM
#24
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Originally Posted by GuitsBoy
Okay, blending the seats im pretty clear on, but what about the lower par of the bowls? Most say to do 90%, 1.800" specifically, just wondering if you eyeballed them or you used something to measure, or maybe you didnt really open that part up too much yet?
Im thinking about just eyeballing it flush with the inner part of the seat down vertically and fading into the bottom of the bowl. Not quite sure how im going to pick off behind the valve guide yet. Guess ill just use the ball carbide burr.
Im thinking about just eyeballing it flush with the inner part of the seat down vertically and fading into the bottom of the bowl. Not quite sure how im going to pick off behind the valve guide yet. Guess ill just use the ball carbide burr.
Brandon
12-12-2005, 09:25 PM
#25
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Originally Posted by CBX
This is what I did last night. I still need to smooth it all out.
Brandon
12-12-2005, 09:29 PM
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Originally Posted by Xtnct00WS6
So no bigger than 1.58 on the exhaust width? How about the exhaust height and the intake runner port height and width measurements? Any recommended specifics on that?
Do those measurements apply to 243's too?
Thanks!
Do those measurements apply to 243's too?
Thanks!
Brandon
12-12-2005, 09:51 PM
#27
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Originally Posted by xfactor_pitbulls
Your intake valve guide has a sharp edge on the back side. Round that thing out or it will create a disturbance in the air flow.
Brandon
Brandon
12-12-2005, 10:17 PM
#28
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Originally Posted by CBX
What about the ridge leading up to the valve guide?
Brandon
