I need some ideas. I have a spare hot-air Intake manifold. I started to cut the top off the plenum then I find that there's a divider there any ideas how I can get in there? One friend told me to get a drill press and drill out a line. but I have no way of getting one, nor do I know anyone who has one I already removed the egr hump and smoothed out the runner ports. I was thinking about having a machine shop remove the divider for me. any help would be greatly appreciated. I nearly reverted to a hacksaw but came here instead for some advice. guys?
I used a saws all. I cut the divider completly out and I cut the bottom open and elimiated the bottom runners. I had it all welded up at a shop. It worked great. It idled real nice and I felt a difference in seat of pants power. I sold it and went to the turbomotion setup. His intake was pretty much the same thing exept it eleminated the turbo inlet and had a doghouse to mount the t/b on the front of the intake.
Why do you want to cut it open and remove the devider ?
I am in the middle of doing mine in my shop...I just smoothed out the EGR hump where the turbo inlet is...then I opened up the runners to gasket size and smoothed them out.
The inside of the intake is large enough that it's not necessary to cut it open and mod the inside. Unless you are flowing HUGE amounts of air you might be wasting your time here.
Check out my pics at the link in my signature and also
I though about doing it like i-win. I've already smoothed out the egr hump and port matched the runner openings. I've heard so many good things, like Lee Thompson boning the 10s I figure, hey everyone else is doing it, why shouldnt I? I took turbowrenchhead's advice and used a saws-all to get in the crack and cleared the divider. I didnt open up the the bottom, I didnt want to take it to that extreme, yet I'm taking it to the machine shop to get it welded shut and cleaned up after Christmas is over and bills are paid. Might give me enough time to think over how I'm going to cut open the bottom. Guys...any suggestions?
I wouldn't even bother cutting open the bottom if you've already opened up and cut the divider out of the top side...I don't think it will make much difference other than lightening your wallet more for welding...
Speaking of welding...After you get done having it welded back together, make sure that you have the machine shop check the flanges that bolt to the heads for straightness...All that heat that is involved in welding the intake back together may warp the flanges...If they are warped, you will never get it to seal again without machining...And hopefully, you didn't gasket-match yet...Because if it is warped and needs machining, your gasket-match won't gasket-match any more...
err, i already port matched the runners. thanks for the warning though the machine shop told me about the the flanges possibly warping. so, they'll check it before they deck it out. good thing the shop chief is good friends with my dad, otherwise my wallet would really sink.
The intake on Lee Thompson car was not cut open. I enlarged the ports as much as possible and as far back into the port as I could reach........very time consuming because there is ALOT of material to remove..........concerning the egr hump.......I made the top of the hump as narriow as possible and made a smooth transition to the floor........there is alot of meat to take out of the turbo inlet neck also.....there is only a very small "step" as to what the turbo adapter sits on.....then after all the grindind and sanding was complete, I proceeded to polish everything I could reach to an ultra smooth finish. It took alot of time but the results were worth it.......hope this helps........Dwayne
Lee did tell me that him and Dywane cut 1 or 2 open but never did do anything with them. Lee or somebody on here said that the stock intake was designed for water injection. So save yourself some money by porting your own and buy or build a Alky Injection system just my two cents
where would be the alky shoot into? on each side of the plenum? I kinda have something setup to use boost pressure at a certain psi for alky injection, using good ol mechanical engineering methods . gotta figure out how to retain manifold pressure at a constant when the valve is open to feed pressure to shoot the alky. just gotta see if I can apply it to work and find the materials needed I doubt I'm going to cut up the bottom. Maybe one day I'll copy turbomtions setup when I feel up to it.
any ideas how I can get in there? One friend told me to get a drill press and drill out a line. but I have no way of getting one, nor do I know anyone who has one 
I already removed the egr hump and smoothed out the runner ports. I was thinking about having a machine shop remove the divider for me. any help would be greatly appreciated. I nearly reverted to a hacksaw but came here instead for some advice. guys?
I though about doing it like i-win. I've already smoothed out the egr hump and port matched the runner openings. I've heard so many good things, like Lee Thompson boning the 10s 
I figure, hey everyone else is doing it, why shouldnt I? 
I took turbowrenchhead's advice and used a saws-all to get in the crack and cleared the divider. I didnt open up the the bottom, I didnt want to take it to that extreme, yet 
the machine shop told me about the the flanges possibly warping. so, they'll check it before they deck it out. good thing the shop chief is good friends with my dad, otherwise my wallet would really sink. 
