HommerSimpson;1013228 said:
Pictures it is:
Mind you this will be a rough template so i at least have an idea where to start drilling holes tomorrow. Right after i split the 4" tube in half ofcourse.
FFIM Long runner fabrication question
- Thread starter C.44
- Start date
Pictures it is:
Mind you this will be a rough template so i at least have an idea where to start drilling holes tomorrow. Right after i split the 4" tube in half ofcourse.
LOL that covers the inside holes now you need to do another set allowing for the wall thickness of your 4" tube taking the angles on the runners into account 
How do you intend welding the inside and radiusing the inlets?
How do you intend welding the inside and radiusing the inlets?
This one has a flate plate welded on the bottom and the top.
I think it looks kind of nice. I think that is what I want to go for if I can't find a nice shortrunner.
I think it looks kind of nice. I think that is what I want to go for if I can't find a nice shortrunner.
IJ.;1013250 said:LOL that covers the inside holes now you need to do another set allowing for the wall thickness of your 4" tube taking the angles on the runners into account
How do you intend welding the inside and radiusing the inlets?
First thing will be cleaning the runners so they are clean at least, inside and outside. Then i will make the holes that i have marked now. then i will angle the holes according to the runner.
Radiusing the inlets will be a pita. I can't get them as round as i would like to but i will try to get them as round as i can without making the "walls" too thin.
But like i said, this is a rough outline. Now i atleast have an idea where to start drilling. After that the "fun"stuff comes
I'm determined to get this done lol. I doubt i'll get it welded this week but i'll sure as hell try lol.Ty for pics... will have to keep eye on you ... Im very stuborn to.. when i want to do something MY WAY.. i will do it till its proven to me that there is a better way...
IJ.;1013273 said:I've made a bunch of these things so anything I suggest is from my own experience
And everything you say will be kept in mind when working on this project
Plus i'm very thankful for your and everyone elses help so far 
ill be watching this myself. i just ordered the tb flange and 4xx24in long 1/2in plate to weld to the runners to get mine started. once the inlets of the runners are radiused ill buy the pipe. going to go with a schedule 40 with 4in outer diameter from online metals.. once its done i plan to polish the entire thing as well.
i really liked your cardboard template that seemed to work great.But what i dont understand is how your going to work the inner side of the manifold tube? Are you cutting the tube in half, welding the runners, shaping the velocity stacks, then rewelding the tube? sorry im just trying to picture what your doing.
Yup, pretty much. I will cut the tube in half (lengthwise) then grind the runners flush, weld them, shape and polish each inlet and then weld the tube back together. That's pretty much it.
I used a 53mm holesaw to cut the holes roughly since it seemed to be a pretty close match to the runners. Now i just need to open up the holes a little more so i can move the plenum over the runners as much as i need to.
I used a 53mm holesaw to cut the holes roughly since it seemed to be a pretty close match to the runners. Now i just need to open up the holes a little more so i can move the plenum over the runners as much as i need to.
well, i got some of the stuff i needed to make my ffi. ill post more pics in my build thread as i make progress. only thing left to buy is the actual pipe but im a ways off from needing it yet.
http://www.supramania.com/forums/showthread.php?t=12815&page=5
http://www.supramania.com/forums/showthread.php?t=12815&page=5
Well here's an update. I have the ffim itself almost finished. I only need to get the TB flange welded onto the plenum, cap the end of the plenum, add the AIT sensorbung and add some vac connections.
As you can see i have also found a way to retain the stock cables and stock cruisecontrol. I just need to make a bracket to screw the original linkage onto the manifold. Works just perfect.
Now i have a little problem with my ffim that i'm not to fond of. But i think i'll just clamp it down, heat it up and see if i can get it back into shape again
See ? It's sagging about 4 - 5 mm. I don't like that...
As you can see i have also found a way to retain the stock cables and stock cruisecontrol. I just need to make a bracket to screw the original linkage onto the manifold. Works just perfect.
Now i have a little problem with my ffim that i'm not to fond of. But i think i'll just clamp it down, heat it up and see if i can get it back into shape again
See ? It's sagging about 4 - 5 mm. I don't like that...
It's not so much the surface that is giving me problems (i have it bolted to the lower runners atm and it will straighten out that part) but the problem is that the middle runners have dropped down 4-5mm. So that's what i need to fix.