Quote Originally Posted by foley803 View Post
Are you sure that dinky little piece of sheet metal is enough to not deflect under the heat and load? Looks like the block-off plates that you can purchase have quite a bit more meat to them and are made out of Al like the head.

Not trying to rain on your parade, I don't know what kind of pressure that sees.
I am not sure of anything. I admit that my plate is substantially thinner, by about 3mm, and I too questioned the durability of it. I even initially planned on cutting out two and putting them back to back. But after making the one and determining that there was absolutely no give in the metal (especially at the size of the plate), I'm pretty confident that it's not going to blow or warp. My logic would tell me that since the IE and Forge plates only use the upper and lower holes and not the side one, that their plate would need more meat to it in order to provide the needed strength. Since I used all three holes, it may allow the pressure put on the plate to spread a little more among the plate (definitely not evenly since the port is not centered).

As for the o-ring, stock valve uses a gasket, so I don't see why that shouldn't suffice.

Quote Originally Posted by AudiA4_20T View Post
I applaud a solid DIY, but the IE one is O-ringed and laser cut, for $35 and by the time you buy sheet metal, glasses, something to cut with, etc it's not worth it for the common guy
I too am just a common guy...but as I take on projects I build up stock of tools and materials. These things accumulate over time and the cost of said projects becomes less each time. I agree that if you had none of the above it may not be the best place to start from scratch. But I've brackets for motorcycles on the back "porch" of my tiny apartment and I have more to make...so I figured I could make something for my car too. Although the plate is only $35, it would've added another $25 just for shipping to Hawaii...and while $60 is still not too bad for an engine part, I refuse to double the price of an object that weighs >6oz just for shipping. If a company could throw it in an envelope and send it for $0.60 postage...then I'd be a lot more willing.

Charlie, for some reason it won't let me quote your post...probably cause you got a 240 as your avatar Two cars ago I had a s13...fun cars.