Ported intake manifold cracked#
Ported intake manifold crack#

Back in the days of hand porting heads, flow numbers would vary a small amount runner to runner, even when guys used porting templates.

only way I could think of to keep them truly consistent would be a CNC machine. A ported and polished intake manifold will improve airflow, leading to more horsepower and better performance. not sure how much you'd gain in real world flow numbers by hogging out any material on them. Don't even consider porting the intake until you've port-matched the heads. For the ports I used the gaskets for removing major metal then micd the ports to keep them sized consistantly.

Basically just a gasket match, Im not going to touch the injector bosses as I havent figured a good way to keep them consistant in size. Once you have the intake off, you need to port-match the intake ports on the cylinder head. Here is a pic of the progress of my 6.1 manifold porting job. If you damage the gasket, you'll need a new one. If anything, maybe just a flapper wheel to smooth out the casting surface just a bit on the bungs so that you're helping the flow in that small little pinch area, without sacrificing any real structural integrity.Д®ven ported, the point of greatest restriction in the intake track is still in the heads. Step 1 Remove the intake from the head or heads, being careful not to damage the intake gasket. The gasket match should be fine as there's plenty of meat for the mounting surfaces of the manifold. He disagrees because the engine in his current rock crawler 'screams' and he polished the intake. I commented that he shouldnt go crazy with polishing the intake runners. Any ideas or suggestions on how I can do this Any help is appreciated. I have tried to find a flexible extension for my die grinder so that I could go into the runners through the opening, but I have had no luck. That would blow up all that great work you did matching the gasket ports. An old school mate of mine posted a picture of his progress porting/gasket matching and polishing a new intake manifold for a 390FE that hes building. I am trying to port my RAA (Accord) lower intake manifold, but I cant cut the plenum open, because I do not own a welder that can weld aluminum.

Ported intake manifold cracked#

Those bungs are the mounting point for your injectors and it'd really suck if you went to torque down the fuel rail and one of them cracked because just a hair too much meat was removed.

Ported intake manifold crack#

As it turned out, I removed a little more than I should have and it caused the intake manifold to crack open like an egg. I used to have a 2001 Dodge ram that I had pulled the intake manifold off and modified it pretty heavily. there is no way this ported manifold gains even 10 HP IMO, As far as the TB, um the car really needs a real 70 to 75 mm TB, AFAIK all these ported TB retain the stock 64mm blade and yes making it smooth helps, but it the primary restriction is the blade / shaft period. Actually, I was going to suggest that maybe you shouldn't do anything to them. The top part of the intake is easy to take off, the trans dipstick is a pain, I think you have to take it off underneath the car.