[QUOTE]Originally posted by Douglas Carbonera:
[QB] Hank!
My cylinder head is a Pro Porting one. 1.8" intake ports! What tubing size can I use in my cylinder head??
That D Shaped tubing from ROSS Machine Racing will work for my car??
I have no idea of how to build my intake Manifold!!!
Douglas, I have the "D" shaped extrusion,it will work for you also.
Not sure if you can find a 2 @ 1/16th" tubing w/a .120 wall aluminum?
That would be roughly 1.82" ID & your port is 1.80,, or I am sure you can find 2.125" but that will have an ID of 1.88"
If the tubing has a .120"wall,,,,multiply by two = .240 then subtract that from the tubing diameter,that will give you the inside diameter.
Ross,does not make big enough velocity stacks for your application or mine,I asked.
So I am just going to make my own.
You can have those made,just download a pic from Ross machine & give the pic to your local machinist & have them copy it.
Just look @ the velocity stacks from Ross,it has a .250" step (the velocity stack) there Plenums are .250" thick it is pretty basic how they are made,esp. for round port velocity stacks(you just make them on a lathe,CNC(computerized lathes)are the best.
And from the looks of your main cap girdle,that machinist will have no problem making the velocity stacks.
I really wanted some velocity stacks from Mighty 6 but his brother said he has no time to make them,,,,really pieces of art, if you look @ his website & look @ his intake ports/velocity stacks.
MBHD
