I thought the whole concept of this was to get more air faster. Yes, I understand you have to have the turbulence that the roughness inside makes. Isn't extrude honing making sure all the holes between the upper plenum, lower plenum, and intake ports on heads match perfectly when bolted together. So that it is a smooth match & same size w/ holes that line up together. NOT smoothing out the inside to almost polished,..... just lining up the holes, right?
ok, what i believe, is that the holes are already matched, but they're made bigger? if redstar is right, and they're not already aligned..then i understand and ill get to work..if not...then i have some deep questioning.
Hell yeah post #500 Hero baby!!...hey DT where u at with my party smileys!??
see the thing is, once you bore your throttle body, the upper manifold will have a smaller hole (because it lined up with the old bore size, which is smaller). so you have to "port match" the holes, which means you make the two holes the same size, so you have to bore the opening of the intake manifold.(upper). Now, if you take off your entire upper intake manifold, and look into the bottom of the 6 runners, you will see some SHITTY weld lines at the end of them. You can grind those smooth, but it is not recommended that you polish the inside of the plenum past the weld lines. Also, if you look closely at the holes at the ends of all 6 runners, you will see that they don't exactly match up to the opening of the lower manifold holes. You would think that they'd be a perfectly engineered match, but they're not. The holes arent even identical in shape sometimes. It's poor craftsmanship. so you take a manifold gasket, and port match the lower plenum runner openings to the gasket holes, then you put the gasket on the lower manifold, and port match those holes to the gasket. when its all cleaned up, you put em together and you have a perfectly (or close to) matched and ported intake setup. The hard part is grinding the weld lines out of the upper manifold runners,because they are at a 75 degree or so angle. I recommend the dremel snake adaptor for this, or a dremel with a 5-6" shaft that attaches to the grinding wheel. (most shafts you buy at the store are only 2" or less). I really dont recommend doing any of this with the parts still on the car. You have to get them washed. You cant just spray gunk-off in there and hose out. I hope this helps. So port matching means you make two holes that connect to each other the same size, and boring means to enlarge the size of a hole , tube, cylinder, etc. Hope this clears things up....
see the thing is, once you bore your throttle body, the upper manifold will have a smaller hole (because it lined up with the old bore size, which is smaller). so you have to "port match" the holes, which means you make the two holes the same size, so you have to bore the opening of the intake manifold.(upper). Now, if you take off your entire upper intake manifold, and look into the bottom of the 6 runners, you will see some SHITTY weld lines at the end of them. You can grind those smooth, but it is not recommended that you polish the inside of the plenum past the weld lines. Also, if you look closely at the holes at the ends of all 6 runners, you will see that they don't exactly match up to the opening of the lower manifold holes. You would think that they'd be a perfectly engineered match, but they're not. The holes arent even identical in shape sometimes. It's poor craftsmanship. so you take a manifold gasket, and port match the lower plenum runner openings to the gasket holes, then you put the gasket on the lower manifold, and port match those holes to the gasket. when its all cleaned up, you put em together and you have a perfectly (or close to) matched and ported intake setup. The hard part is grinding the weld lines out of the upper manifold runners,because they are at a 75 degree or so angle. I recommend the dremel snake adaptor for this, or a dremel with a 5-6" shaft that attaches to the grinding wheel. (most shafts you buy at the store are only 2" or less). I really dont recommend doing any of this with the parts still on the car. You have to get them washed. You cant just spray gunk-off in there and hose out. I hope this helps. So port matching means you make two holes that connect to each other the same size, and boring means to enlarge the size of a hole , tube, cylinder, etc. Hope this clears things up....
Yes it does, i understood what the terms meant.guess i had em mixed up cuz i thought the ports WERE matched to begin w/
Shiano, Steve at throttlebodys.com is expecting my TB soon. He and I chatted, exchanging e-mails, and he will try to do it. He's not sure, because he's never done a Avenger V6 TB, but from what he said I'm sure he can do it. The boring process would be no different. He removes the pulley then bolts it to a flat plate. Then it will lay flat so he can go to work. All I have to do is box it up and ship it. I think I will ship it UPS.
i'd trust UPS. just make sure you shrink wrap it first depending on what packing materials you use. don't need packing peanuts finding their way into the intake later.
I work at a Lowe's, so packing material will not be a problem, nor will boxes. I have free access to any packing materials I want. I was thinking of layering cardboard inside the box, then bubble wrap, and using that whitish foam paper to wrap it.
Steve at throttlebodys.com says the biggest I can go is "from the present 54 to about 55mm" We are talking about the throttle body on a 6G73 V6 Dodge Avenger. Everybody else here says no bigger than 59mm? comments please........
Yeah, I sent mine out to get done by my dad's machinist... he bore it to 56mm. I bore mine to 58 after i got it back and tapered the lip to 59. There are companies that sell 60mm (not bored, made that way) for the 4 cylinder eclipse.
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