Hey what type of bit do i use on my dremmal??? and can i port the part where my MP TB is connected to the intake manafold??? Or does this have to be done by a machine? thx
97 Rs 5sp -Intake -Front upper strut bar -Tint 20% o yeah -Coilovers/KYB ADJ -60mm TB -P&P intake mani -Cat Back System. -Funny Rims?? dont lie ~likestofloorit.. (1/4=16.258)(60=2.363)
#51913, "RE: Question about porting intake manfold?" In response to Reply # 1
yup, those are what i use, and just dont forget, a little is a lot, don't do a lot in one area at once. gasket match everything so you get the most out of your porting. take the sensors off before you get started. clean it out really well with carb cleaner or something before putting the intake mani/tb back on your car. if you do your exhaust mani, its not quite so critical because its all just going to blow out of your cars ass anyways, but id till clean it out for the most part as well before re-installing. dont do any porting to your engine/block, have that done at a shop. if you ever think your really talented with the porting, you can maybe think about plugging up the holes with some rags and portmatching your exhausts ports on the block to the exhaust mani/gasket. happy porting, enjoy the endless hours of boredom just keep thinking "hp" and wear ear plugs at least sometimes to keep the headaches down.
#51932, "RE: Question about porting intake manfold?" In response to Reply # 4
Everyone says gasket match this, and gasket match that. Gasket companies dont know anything about flow. What they do know is to make that gasket big enough that it wont restrict flow and make the gasket good for sealing.
#51988, "RE: Question about porting intake manfold?" In response to Reply # 5
>Everyone says gasket match this, and gasket match that. >Gasket companies dont know anything about flow. What they do >know is to make that gasket big enough that it wont restrict >flow and make the gasket good for sealing. > >Port only accordingly to how your head is ported.
well no you see, obviously youve never gasket matched considering your firmly against it, but honestly there is nothing dramatic about it. it has absolutely nothing to do with using the the gasket as a diagram for perfect flow size/shape. it's simply an easy way of assuring an identical mating surface between the two parts separated by that gasket. which WILL improve flow in these cases.
perhaps you already know the process but just for example what you would do is: take the gasket, line it up perfectly with the bolt holes, trace the gasket holes onto your intake manifold, then take the same gasket, line it up on the throttle body perfectly with the bolt holes like you just did, and trace the hole on there. then, you port it to match the tracing, and be very critical about tightening up everything with the gasket in there the way you need it. boom, now your throttle body and intake manifold have a perfect fit with no restrictions. like i said thats just an example, infact now that i think about it, our stock intake mani's and tb's might match up perfect to begin with. but this definately serves a purpose in at least some applications.
#51934, "RE: Question about porting intake manfold?" In response to Reply # 6
Don't try to port it to match that MP throttle body unless you take it and have material added around that bottleneck. The exterior diameter of that bottle neck is barely over 60mm and you'll have a big gash (it happened to someoneon this board)
#52245, "RE: Question about porting intake manfold?" In response to Reply # 11
lets just say this, my nearly stock 96 rs will woop the shit out of any stock 2gnt. and i really dont think its because of the good suspension, the cat back, a cone filter on my stock intake tubing, and my heavy 16" stock wheels. i think it becomes impressive with the addition of porting the hell out of the throttle body and upper intake manifold. after 4k, i scream. walked a toyota celica gts several times on the fwy last saturday night, i think he had a fart can and altezza's woohoo. my silencer was in too so it was really restricted in the high end (but comfy on the fwy). porting does something.
#52307, "RE: Question about porting intake manfold?" In response to Reply # 12
One last thing is it hard to take off the intake mani?? And if i do screw the intake mani up by putting a whole in it..what do i put over it to fix the whole? Was it aluminum or JB weld? haha thx guys
97 Rs 5sp -Intake -Front upper strut bar -Tint 20% o yeah -Coilovers/KYB ADJ -60mm TB -P&P intake mani -Cat Back System. -Funny Rims?? dont lie ~likestofloorit.. (1/4=16.258)(60=2.363)
#55374, "RE: Question about porting intake manfold?" In response to Reply # 13
somebody respond to this man!!! lol, i was rivited to my computer screen reading this thread. this has got some great information in it. i'm going to be doing the jeep tb and porting the bejesus out of the intake manifold. so somebody keep this thread goin'.
#55376, "RE: Question about porting intake manfold?" In response to Reply # 14
Me...OOHH LLEEETTT ME!!
Dude.. really. Do you know what a junk yard is? If you say no.. don't post again.. but i'm gonna presume that you do. Go down there, i'll promise you that you will find a 2gnt sitting somewhere, with it's intake manifold firmly attactched to the engine.
Excellent practice.. take it off, so you know what you are doing on your car (it requires the removal of injectors, a bunch of vacume hoses, map sensor, the TB .. am i missin anything?? ) the you have a spare Intake to mess with. you can take your time on it.. and if you mess it up, go pick up another one for 12 bucks.
If this all sounds like too much to handle.. go to your engine shop.. and let him charge you 300+... have fun
Stage III HRC 8.5:1 compression 12 psi @ 2300 rpm fully built engine.. oo.. and it goes vroom
#55411, "RE: Question about porting intake manfold?" In response to Reply # 16
>yea right on that "promise" wakeboard, I've searched every >junk yard around my area many times and not a 2gnt to be >found! sux IMO! > >also doing my thing to keep this thread goin'
i'm with u man.. not a 2gnt to be found in ANY junkyards around here. And as far as the intake manifold goes, they are usually upwards of $100, even at a junkyard.
Anyone know anyone who can help me tune this in the Pittsburgh area (Greensburg)?
#55490, "RE: Question about porting intake manfold?" In response to Reply # 20
so all along i thought a dremmel would suffice. guess not then, huh? where does the jeep throttle body and porting the intake manifold "mod" give you the most power, high, low, or through-out the whole powerband? any estimate as to what kind of gains?
#55655, "RE: Question about porting intake manfold?" In response to Reply # 22
Who said a Dremel won't work? I used my Dremel with that standard, orange grinding stone and then followed up with a 120grit flap wheel and I'd say I have some pretty decent results. I could've done a better job, but I did it in an hour one night while rebuilding. I'd say it's worth the time to do it.
#55758, "RE: QUEASTION!!! about porting intake manfold?" In response to Reply # 24
I think you want all the surfaces to be as smooth as possible. Modern Performance says that Extrude Honing makes everything "glass smooth." The smoother it is, the less restriction you have.
I was unable to go deep into the mani with my flex attachment, but after I ground it all out to the shape I wanted, I used a 120grit flap wheel to smooth it out.
With a P&P TB and intake mani you should get, what, about 5-8hp? I'm not sure. I did too many other mods at the time to tell.
#55780, "RE: QUEASTION!!! about porting intake manfold?" In response to Reply # 25
when i previously replied to this thread, there were some things i left out.
first of all, yes removing the intake mani is a must when porting the intake mani. and it isnt too hard to remove, although the 2 or 3 bolts on the back/bottom of the intake mani are a bit difficult. hopefully your arms are as skinny as mine and you have the right extentions.
when "gasket matching" first take your new gasket and a razer and cut the gasket to the size you want to port, then trace the new sized gasket onto the intake manifold. this can help you open those runners up pretty nicely. i wasnt too specific when i earlier mentioned gasket porting, gasket company's dont design there gaskets for perfect runner sizes.
also, make sure you use the metal drill bit looking grinder that was posted up in the first reply. it will take 1/10th of the time as it would if you just used the grinding wheels. unfortunately i learned this from experience. but with this grinder bit, porting is really easy/fast with just a dremmel.
last week i ported the exhaust ports on my block. a guy in my crew helped me out. taking of the eashast mani was a pita but it was worth it, and fun and easy after that. just be careful with the coolant line attatched in front/ontop of it. to port your exhaust ports you have to plug up the holes with some pieces of rag. you dont want anything falling back in there. if anyone does this i reccomend a light porting/polishing. if you go too dramatic without knowing exactly what your doing, it can cause problems like wacky idle and/or lowered performance anywhere in the power band. all in all do some more research/practice before getting to this one. i think i saw some improvement, but its mostly to compliment the nitrous direct port system im installing in a week or two here
just keep thinking "hp" and wear ear plugs at least sometimes to keep the headaches down.
