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Old 03-28-2013, 07:43 PM   #1135
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rather phallic if you were to ask me...
I had to look that word up LMAO!
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Old 03-29-2013, 01:19 AM   #1136
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Old 03-29-2013, 02:00 AM   #1137
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Old 03-29-2013, 07:03 AM   #1138
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rather phallic if you were to ask me...
The "Richard Cranium Special"
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Old 03-29-2013, 07:25 AM   #1139
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I lol'd and now my coworker is looking at me funny
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Old 03-29-2013, 11:51 AM   #1140
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haha, nice. but I got us off-topic. Back to the tooter-penis-project-thing.
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Old 03-29-2013, 12:08 PM   #1141
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I just LOL!
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Old 03-29-2013, 01:02 PM   #1142
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haha, nice. but I got us off-topic. Back to the tooter-penis-project-thing.
Yes.
I started doing a little preliminary grinding on one of the runner entrances not wanting to remove too much of the weld so as not to weaken the manifold...



And now that I'm going with the hemisphere, I can remove the rest of the square plenum. That will make it much easier to shape the runner entrances as it is impeding getting the Dremel at the proper angle.
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Old 03-29-2013, 02:13 PM   #1143
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LOL...Speaking of phallic symbols and alcohol...Hold up... need to shoot a pickleback...
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Old 03-29-2013, 03:52 PM   #1144
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Five things ya don't wanna hear when you open your hood.....

1) Hey big boy.

2) Is that your intake, or are ya just happy to see me?

3) Whip it! Whip it good, as the Devo music plays.

4) Shwing!

5) Damn, thought I at least had five......
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Old 03-29-2013, 08:18 PM   #1145
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Here's a comparison between the runners...





The welds do overhang the entrances quite a bit, so removing them should improve the flow.
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Old 03-30-2013, 10:19 AM   #1146
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That tooter looks great! Your experimental one looks like a jelly fish :p
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Old 03-30-2013, 04:18 PM   #1147
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Better start making some porting templates. I would be interested to see what the physical diameter gains are. Looks like a nice improvement.
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Old 03-30-2013, 05:08 PM   #1148
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Porting to the existing runner size increases the entrance diameter from 38mm to 40mm because the welds overhang a little more than 1mm all the way around. This nets a gain in the cross sectional area of just a little over 11%.

After all the overhanging welds have been removed, I'm going to smooth out and profile the entrances to more of a "bell" shape which should improve the flow even more.
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Old 03-30-2013, 05:15 PM   #1149
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That tooter looks great! Your experimental one looks like a jelly fish :p
Sort of does. Maybe I should call it the "tooter squid"... although that name has negative connotations. It may end up earning the name squid after I get the dyno results!
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Old 03-30-2013, 08:27 PM   #1150
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Cut the rest of the plenum off so that I could get the Dremel into the runner ports better...



Also gound off all the overhanging welds, and stainless steel bead blasted everything. This evens out all the grinding marks and will make it much easier to see the shapes of the ports while I'm grinding the bell mouths.

Before grinding...



...and after.

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Old 03-30-2013, 08:32 PM   #1151
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You going to smooth out the weld too?
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Old 03-30-2013, 09:02 PM   #1152
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Yes. That's the next step. I'm going to form bell mouths for the runners, but I need to be careful not to take off too much weld because that's the only thing holding the runners onto the baseplate.
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