Those intakes are good OTB for 8k rpm. They're dry manifolds, so air is riding above the surfaces. If your opening it only to match your 95mm , I wouldn't rely on the O-ring.
The goal is to smooth out the glue and edges, give it some more volume with a spacer, remove the inner supports to help with airflow, and open the inlet for the large tb.
RTV.
Two possible options,
Nope. Couldn’t figure out an easy way to make the spacer. My idea was to scan it and 3d print it but the phone scanning app was low quality and it was my first time ever touching cad software so it was a disaster. Did have something made and 3d printed but the fit was very rough and I stopped there.
I think those internal supports become very important when boosted. May be a blessing it didn’t work out. I have twins and am going to be changing from a Gen 3 to the Boss 302, which the port work will be extremely mild. Still investigating the Boost Proof methods.
Yes would not use the manifold for boost. Was only ever planning on it being na. When you go to that big of a throttle body you lose the oem oring and sealing the throttle body becomes an issue that I’m sure boost would push to failure.
I talk about it a bit on my build thread. I have some theories and ideas. What was the spacer you were talking about? The throttle body?
The spacer I was making was for the plenum. Just the cheapest plastic I could have 3d printed in decent detail from an online parts printer. It was a little warped but it was still off enough I got discouraged. For the throttle body I was going to see if something like rtv could hold up since the surfaces seemed to be so bad on the manifold after removing the oring that a simple paper style gasket didn’t seem to be viable. Again this was just for na.
