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Old 01-12-2012, 03:38 PM   #1
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Default Gutted intake manifold

Here are some pics for easy reference so you don't have to dig through my 1000 post build thread.



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Old 01-12-2012, 03:39 PM   #2
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Measured plenum volume (without runners) was something like 2.3L. Runner volume was about .5L
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Old 01-12-2012, 03:49 PM   #3
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Have any pics of before? I've never opened mine up to see whats inside.
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Old 01-12-2012, 04:10 PM   #4
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how long are the runners now, like 3-4"?
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Old 01-12-2012, 05:04 PM   #5
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Oh please God tell me you did that while the manifold was still attached to the head. That'd be awesome.
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Old 01-12-2012, 05:12 PM   #6
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That'd be awesome.
Like glitter from the tailpipe, awesome!
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Old 01-12-2012, 09:07 PM   #7
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thanks for posting! I'm about to send my motor off to get worked on, ive been bookmarking all porting stuff like this that ive came across
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Old 01-12-2012, 09:51 PM   #8
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Quote:
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how long are the runners now, like 3-4"?
Probably around 6 inches? Car is still quite peppy out of boost. I mean, if you did this to a naturally aspirated car then you might loose what, 5hp down low? Since boost is what makes power FWIW I didn't notice any spool hit when I took off my ungutted mani and put this on.

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Oh please God tell me you did that while the manifold was still attached to the head. That'd be awesome.
Of course and like a ------- baller I shoved a pile of magnesium shavings down there to take care of the aluminum chunks-- to smooth out the walls n stuff
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Old 01-12-2012, 09:58 PM   #9
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did you do all the porting yourself?
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Old 01-12-2012, 10:06 PM   #10
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Where did the Mg come from?
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Old 01-12-2012, 10:32 PM   #11
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MGs come from Britain, of course
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Old 01-12-2012, 11:30 PM   #12
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Where did the Mg come from?
Off my crotchal region


Sean mr 2JZ MX5 did most of the gutting with a mill. shi was then smoothed with some aggressive rotary diamond coated bit thing.

All the EGR and vacuum port crap was welded shut with bannanas
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Old 01-13-2012, 10:33 AM   #13
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Originally Posted by Faeflora View Post
Probably around 6 inches? Car is still quite peppy out of boost. I mean, if you did this to a naturally aspirated car then you might loose what, 5hp down low? Since boost is what makes power FWIW I didn't notice any spool hit when I took off my ungutted mani and put this on.
probably way more than that.
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Old 01-13-2012, 12:54 PM   #14
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Quote:
Originally Posted by Faeflora View Post
Of course and like a ------- baller I shoved a pile of magnesium shavings down there to take care of the aluminum chunks-- to smooth out the walls n stuff
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MGs come from Britain, of course
Junior high education fail:
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Old 01-13-2012, 01:50 PM   #15
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Old 01-13-2012, 01:51 PM   #16
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I'm all about the Hg.
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Old 01-13-2012, 02:31 PM   #17
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I had planned to close up the open ports in my manifold with molten alloy. After reading over this all encompassing thread Im now goin with the bananas method. Less clean up and no gas production.
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Old 01-13-2012, 02:39 PM   #18
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and high in potassium.
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Old 01-13-2012, 03:09 PM   #19
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We could all INTAKE more of that.
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Old 01-13-2012, 03:41 PM   #20
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Thanks for the pics. I need to get reinspired to start gutting my extra manifold. It's such a slow PITA process I doubt I'll ever finish. Anyone have suggestions on what kind of tool to use for this? I've just been randomly picking up different cutting tools and nothing has seemed to work all that well.
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