did you have the welder fill the hole from the inside or outside?



you should have them weld it from the inside of the throttle body (thought this was obvious) then you will have a booger sitting there but it will be sealed, you then grind it smooth like you're porting it. When all is said and done it's like the double throttle never existed.

He did it from the outside. If I put JB weld in the remaining hole, there is no way for air to enter from the outside, so the JB weld couldn't get sucked in...right? It would have to overcome a vacuum from behind the JB weld, right? I'm just kinda guessing...

I'm not sure, I've never used jb weld so I don't know how well it would bond to the inside of the hole.



They will still experience vacuum, all of the inner surface of the runners experience vacuum... think of a straw when you try suck a thick shake through it and the walls collapse.

yeah, I know what you mean, but there won't be the greater atmospheric pressure forcing from the outside of the JB weld due to the welded All



or maybe I could just smooth out the area before and after the holes with the help of Dr. Emel.

nevermind about the jb weld...earlier today I read a post on the other forum about a guy's engine dying, then the rebuilder finding bits of jb weld in with the rotors...

yeah i don't like that idea.



i'd bring it back to a welder and have em fill the holes from the inside, make sure they build it up enough to give you room to grind and smooth it out.

I finished mine, and it's great. The response is amazing, and the overall process was pretty simple. The hardest part, I would have to say, is that one screw that is pointed out in the writeup as usually being real stuck. The PB'laster spray stuff really helped here. And I'm left with a bunch of spare parts I don't need anymore. I didn't realize how much was going to be removed until it was all in a pile. And, except for the welding, it was free! 3 teeth, and 2 thumbs up https://www.nopistons.com/forums/pub...IR#>/bigok.gif

This is from FCManiac

Stock vs Modded TB



https://www.nopistons.com/forums/upl...1053553348.jpg

Those are from an S4 NA by the way... Thanks Revvin for cleaning up the pic and that thread!

s4 n/a also trying to get complete step by step w/ pixs but camera ran out of batteries https://www.nopistons.com/forums/pub..._DIR#>/dry.png

https://www.nopistons.com/forums/upl...1054613269.jpg

thermowax removal

https://www.nopistons.com/forums/upl...1054613299.jpg

https://www.nopistons.com/forums/upl...1054613325.jpg