Still haven't had time to install mine, however I did take some time with it using my grinder, a drill, some sanding rolls, a carbide burr, and a good washing.
I know Ken has been blasting these out to remove any dust or debris inside. That is very helpful but it's my opinion you should still double check before you put it on the car. I can tell you there was only a slight amount of dust inside mine upon initial inspection.
I looked inside with a flashlight and saw some dark areas in the middle, then I took a 2.5" dia scotchbrite type stripping / sanding wheel to the inside of it. You can get these at Menards or Home Depot or wherever. It barely fits the inside diameter but it compresses easily. I mounted it in a flex drill attachment which gives me the ability to use a smaller hand piece with a chuck on the end of it and access the inside the inlet all the way through. I connected this to my drill press and cranked up the speed.
I removed rust patches near the weld where the two halves of the pipe come together. This is not too surprising even though it's stainless tubing. I believe it's just part of the welding process and cannot be avoided. I also used a very long, tree shaped burr and some sanding rolls on a long mandrel to hit some of the rust patches and try to take down a slight mismatch between the two pieces of pipe where they come together. The stainless is very hard and difficult material to remove. This was probably totally unimportant in regards to flow but I tried anyway because it was there. Probably 40% was inaccessible with my tools so I quit.
If you ask me, the most important thing you can do is wash the inside of your inlet thoroughly before you put it on the car. Take a scrubbing sponge and soap with hot water and thoroughly clean the inside of the pipe along with the short BPV recirculating tube. Anything in the way of abrasive grit that could come loose and be taken into the engine is BAD. Washing it by hand is good insurance. Once it was dry, I wiped mine down inside with a light coating of WD40. I would do the same with any metal inlet or component going on the intake system of any car.
This is similar to what you would do when building an engine. You want everything meticulously clean and that's how I approached it.
Otherwise this looks like a quality piece and I can't wait to get it on the motor. Hopeful I can get it done tomorrow night.
I know Ken has been blasting these out to remove any dust or debris inside. That is very helpful but it's my opinion you should still double check before you put it on the car. I can tell you there was only a slight amount of dust inside mine upon initial inspection.
I looked inside with a flashlight and saw some dark areas in the middle, then I took a 2.5" dia scotchbrite type stripping / sanding wheel to the inside of it. You can get these at Menards or Home Depot or wherever. It barely fits the inside diameter but it compresses easily. I mounted it in a flex drill attachment which gives me the ability to use a smaller hand piece with a chuck on the end of it and access the inside the inlet all the way through. I connected this to my drill press and cranked up the speed.
I removed rust patches near the weld where the two halves of the pipe come together. This is not too surprising even though it's stainless tubing. I believe it's just part of the welding process and cannot be avoided. I also used a very long, tree shaped burr and some sanding rolls on a long mandrel to hit some of the rust patches and try to take down a slight mismatch between the two pieces of pipe where they come together. The stainless is very hard and difficult material to remove. This was probably totally unimportant in regards to flow but I tried anyway because it was there. Probably 40% was inaccessible with my tools so I quit.
If you ask me, the most important thing you can do is wash the inside of your inlet thoroughly before you put it on the car. Take a scrubbing sponge and soap with hot water and thoroughly clean the inside of the pipe along with the short BPV recirculating tube. Anything in the way of abrasive grit that could come loose and be taken into the engine is BAD. Washing it by hand is good insurance. Once it was dry, I wiped mine down inside with a light coating of WD40. I would do the same with any metal inlet or component going on the intake system of any car.
This is similar to what you would do when building an engine. You want everything meticulously clean and that's how I approached it.
Otherwise this looks like a quality piece and I can't wait to get it on the motor. Hopeful I can get it done tomorrow night.
