99-00 Intake Manifold Porting Anyone? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 01-07-2008, 11:25 PM   #1
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Default 99-00 Intake Manifold Porting Anyone?

Saw this a long time ago, just never looked into it. Anyone done this or know anyone that has done it?

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Old 01-08-2008, 12:05 AM   #2
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you will soon.
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Old 01-08-2008, 12:23 AM   #3
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i remember see that a long time ago. What website was it on?
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Old 01-08-2008, 12:34 AM   #4
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trackdog racing
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Old 01-08-2008, 12:45 AM   #5
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I'll talk to Gary about it this weekend. The red car with the intake plenum is a ******* monster. I've considered doing this to mine.
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Old 01-08-2008, 12:52 AM   #6
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i emailed him earlier today asking for dyno results etc. if you speak to him find out what was done to the other side of the mani. like were the butterflies removed. are they fixed closed or were the openings sealed. was that side gutted out too. i got an extra 99 mani and an 02 and i'm itchin to start grinding.
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Old 01-08-2008, 12:56 AM   #7
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Quote:
Originally Posted by paul View Post
i emailed him earlier today asking for dyno results etc. if you speak to him find out what was done to the other side of the mani. like were the butterflies removed. are they fixed closed or were the openings sealed. was that side gutted out too. i got an extra 99 mani and an 02 and i'm itchin to start grinding.
Its totally gutted out. No butterflies anymore, at least on the iteration I saw in the garage. After some doubt though, MS is wearing off on him. He told me today that he picked up a 1992 he's going to throw an m45 on and run MSpnp.
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Old 01-13-2008, 05:58 PM   #8
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picked up a cheapo electric die grinder at HF and some bits for it that weren't really the correct ones but they didn't have any others. i gotta find some like this but sears & home depot don't seem to carry any. so after using the cheapo rasp style bits that kept filling with aluminum i decided to try a 1/4 drill bit instead. definitely better for fast material removal. got too cold out to continue.

here are the pics from day 1. you can see in that middle ridge i went a lil too deep with the angle grinder cut off wheel so i'll be filling that with JB Weld or maybe get Tim to weld some alum in there. got a ways to go









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Old 01-13-2008, 06:20 PM   #9
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Do not use anything but aluminum welding for that. Can you imagine a small piece breaking off and going through the engine.

Seemed like a lot of work when I did my 99 intake, so I just removed the EGR hump behind the throttle body and smoothed a few areas. I used the aluminum burr around the exterior of the intake to remove the sharp angles and excess casting crap.

Wear eye, ear, and respiratory protection when you grind like that.
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Old 01-13-2008, 09:01 PM   #10
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I cleaned up the casting flash and the nasty areas on mine, but I really want to take out that huge hump that jumps right into the airflow at the throttle body opening, but I never got around to it. If I ever got a spare upper intake I'd cut out the wall over the VICS to see if that makes a difference.
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Old 01-14-2008, 11:29 AM   #11
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Yeah i can fix that hole for you. I'll bring it to Jesel and use the big welder. It'd probably be best to do it at the end in case you want to try anything fancy.

Post a pic of what it looks like before you cut anything.
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Old 01-14-2008, 11:35 AM   #12
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here's the upper half before

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Old 01-14-2008, 12:07 PM   #13
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holy ****
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Old 01-14-2008, 12:07 PM   #14
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talk about porting.
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Old 01-14-2008, 12:10 PM   #15
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i picked up 2 bits from Wayne(he'll be on this site soon) so the "porting" will commence today. i'm gonna bring the lower intake mani with me too and get started on that.

when it's all done i will slap it on the car. tune it. then maybe one day in the spring i'll get the car on a dyno with both intake setups to compare. maybe i'll even compare stock intake with working VICs and the hollowed out one
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Old 01-14-2008, 12:15 PM   #16
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Quote:
Originally Posted by paul View Post
picked up a cheapo electric die grinder at HF and some bits for it that weren't really the correct ones but they didn't have any others. i gotta find some like this but sears & home depot don't seem to carry any.
I see you already have some bits but Van Sant (Total Supply Group) in the industrial park right by my work sells good bits and they have them in stock. I get all my cutoff wheels and Wix filters from them on my way to the shop.
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Old 01-14-2008, 12:17 PM   #17
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perfect! i'll be going to danny's shop to do the work anyway since it's cold and rainy today and i don't want aluminum dust all over the kitchen.
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Old 01-14-2008, 12:20 PM   #18
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Well then there you go, it's like a mile down the road. When you gonna be there? I brought my lunch today...maybe I can stop by and check it out.

EDIT: You have a 1/4 inch arbor? I know there's some serious bits here for doing port work. Scary actually...I tried a few and went back to a dull one when doing my manifold.
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Old 01-14-2008, 01:05 PM   #19
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****, i shoulda left by now but was busy replying to PMs. gotta take lower mani of head. decide which car to take. throw all the stuff in that car. and go.
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Old 01-14-2008, 11:07 PM   #20
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got some work done.







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