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Stesso

Intake Manifold and Throttle Body Customization

13:43
23:05
50.6K views

At 13:43 in

Unboxing LSXcalade's NEW Twin Turbo LSX 427! (Ready For 2,000+ HP)

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What happens here

The custom-built Hi-Ram intake manifold and throttle body are showcased. The intake manifold, previously powder-coated orange for a different car, is now being used for this build. The throttle body is an eBay GPLUS unit that was modified by welding a V-band to it and then machined on a lathe for a seamless look. Custom ports were drilled and tapped into the manifold for vacuum/boost reference, which lead to a distribution block that the presenter has installed in the Escalade's engine bay. The bolts securing the intake were carefully trimmed to avoid disturbing airflow.

Goal: Detail modifications to the intake manifold and throttle body.

Tools and materials

  • Distribution Block — Organizing multiple vacuum/boost reference lines
  • Drill — Creating ports in the intake manifold
  • eBay GPLUS Throttle Body eBay GPLUS — Controlling airflow into the intake manifold
  • Hi-Ram Intake Manifold — Directing air into the engine, custom-painted orange
  • Lathe — Machining the welded throttle body for a clean finish
  • Tap — Threading the drilled ports
  • V-Band Clamp — Connecting the throttle body to the intake piping
  • Vacuum/Boost Reference Line — Connecting the manifold to various boost-referenced components
  • Thread Sealant — Ensuring airtight seals on threaded ports

What they say

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because they're cool still the whole thing a lot of custom work went into this thing that we're now gonna have to do to get the other base ready for this i'll show you this throttle body it's not part of the intake but it is custom see it's welded in there yeah this is like one of those ebay g-plus throttle bodies i welded a v-band to it and then took it over to lexes and cut it down on the lathe so it looked like it was made out of one piece and it's upside down because they have this stupid ugly block on the bottom yeah yeah it looks better upside down so with it upside down you need a different throttle bracket because the higher hieram has this ugly boss up here which i would have cut off and smoothed had i not powder coated this lid years before that i actually bought this intake for the monte carlo wow and i powder coated this lid for that car and i like the color so i just used it on this build too but i had to make this bracket here which i did so drilled and tapped into the intake for these and use thread sealer on them because they go into the runner and trim the bolts perfectly so it didn't disturb airflow underneath i had to drill and tap the crotch there for that fitting because this line runs to a distribution block with turbo there's so many things that are boost referenced that you don't just want to have a bunch of tees off of tees off of tees because it just looks bad you put it all in one spot and you run them there so there's this block right here and i screwed it and bolted to the battery track so it's like nice and hidden everything that needs manifold reference comes from there pretty much and there's one main line that would go under here and go boop under the intake and that's what that is oh that's what i did i used the iat sensor in the top one and then i drilled or i tapped out the bottom one to be the vacuum port for the brake booster there's work to be done here before we even put anything together

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