Intake Manifold Port Matching

[TheDrumAndTheBass]

Ok, this doesn't really include port matching since I'm not installing a bigger throttle body, but couldn't think of anything else to call it. Since I allready have all the major pieces off the block, I thought since I have some extra time this weekend, might play around with misc parts to see if I can squeak out a few extra HP before I bolt everything back together. I was wandering if it were possible to use a dremel tool to grind off a few MM off the insidees of the throttle body and/or intake manifold where the two meet like is usually done when a bigger throttle body is installed IE port matching. Also something I noticed when I pulled the intake manifold off. Is it beneficial to remove the that opens and closes during what I'm guessing is hard acceleration (it looks similar to the flap on the throttle body). It is connected to some kind of vaccum operated valve. I don't know what this is called and can't really figure out what purpose it serves, except something to do with emessions. But since we don't have emessions here in FL, if that's the only purpose it serves I can't see it being harmfull removing it. I can supply pictures of what I'm talking about if you need them.Ryan

[TheDrumAndTheBass]

Sorry, I was thinking in Honda mode (I now accept my 50 lashings) What needs to be port matched is there the throttle body attaches to the fuel injection, not the intake manifold like I said above. Also here is a image of the assembly I was thinking of removing, it's not to clear seeing as I just scanned the part of the manifold instead of taking a picture of it, but I think you should be able to figure out what I mean.Ryan

[Aries]

yes, removing the secondary butterflies will increase throttle response and gain a small ammount of power.Any improvement in smootheness or ammount of airflow will also gain power, so off to dremeling with ya!

[TheDrumAndTheBass]

Yay, I figured out something on my pwn for once. Now if I can just figure out how to get them bastereds out of there. O well, I still have all day to figure it out. Also, will portmatching the collector/fuel injection have any adverse effects? I just want to make sure I'm not gonna do anything detrimental to my engine. If not, I will probably start work on it tommorw, I'll make sure to take some before and after pictures to show everyone how it turned out. And lastly, should I grind down my throttle body where it bolts to the collector too? I know, a million questions, and 5 million answers.Ryan

[TheDrumAndTheBass]

Ok, kind of ran into a problem concerning the secondary butterflys. I can't seem to figure out how to get the damn things off. I took out all the bolts connecting the open/close valve to themanifold. But I can't seem to get the arm that turns the butterflys off/out. Do I need to unscrew all the individual butterflys from the arm? If so I'm stuck because all the screws holding them to the arm seem froze. Ryan

[Aries]

yeah, you have to remove them all or simply cut the pivoter at the edge of each butterfly.

[240nismo]

TheDrunAndTheBass - thanks for starting this topic, i think im gonna do the same thing now:)

[TheDrumAndTheBass]

Ha, no prob Nismo. Anytime I run into a small snag putting my engine back together. I always run off on one of these similar side projects. Always on the endless search fo rmore power ya know? PLus, I figure anything I can do while everythings apart I might as well do now.

[TheDrumAndTheBass]

Hmmm, look like I'll be sawing em off come morning then. Tried every scre and none of em would turn. But they shouldn't be to much of a problem, that arm doesn't look to thick. Gonna wake up early and try to get it done so I can start working on it. and maybe even get my engine mostly together before the days over. I'll deffinatly be sure to let everyone know how it goes.Ryan

[TheDrumAndTheBass]

Well, I'm almost done removing the secondary butterflys. Couldn't get the little screws out so I just decided to saw the arm in pieces. Well needless to say that was next to impossible. So after cranking on my exhaust manifold for a bit an idea struck me. Seeing as I went on a big rivit kick a few months back, I discovered the only way to take rivits out is to drill them out, and figured this principle would work of stuck/stripped screws. So I busted my drill out, put on a small bit, and off they came. Now I'm just waiting for my drill to recharge because the battery was almost dead. I'll make sure to post some images when I'm done.PS. Isn't it funny how these threads can make such sudden turns?Ryan

[Aries]

looks like you got it all figured out Ryan

[TheDrumAndTheBass]

Hmmmm, do I dectect just a wee bit O sarcasm there? Just jokin man, thanks for the props though. Just got in from not only getting all the flaps off, but also the arm connecting the whole assembly out. Also got the intake plenum ported but unfortunatly didn't get any before images, so don't know how much a after one would help. If you still wanna see let me know and I'll throw the bad boy on the scanner. Thatnks to everyone for their help through this endeavor. The only down side I can see so far is I won't be able to tell if theres any kind of power increase since I was never able to drive the car before doing all this work to it. But o well, I'll just pretend and overly exagerate the gains like some people (Hmmmm do Honda drivers come to mind?) But so far my power upgrades include. Secondary butterfly removal, intake plenum ported where it coneects to the throttle body, new fuel filter, and a K&N drop in. I do see a trip to the local track (only an 1/8 mile but better then nothing) as soon as I get everything back together again. Once again, thanks everyone.Ryan