Skip to main content

Modifying the BOV Flange Using a Die Grinder

6:15
37:24
62.5K views

At 6:15 in

Budget Turbo Yukon XL "Uncle Rob" Gets TiAL Wastegate & BOV Installed! (Single Turbo Kit Fab Tips)

What happens here

Using an air-powered die grinder with a carbide rasp bit, carefully carve down the inner edge of the aluminum BOV flange. The goal is to reshape the flange's radius to match the curvature of the turbo piping, ensuring a close fit for welding. Apply lubricant (like cutting oil or even WD-40) to the bit and flange to prevent aluminum from galling and prolong the bit's life.

Goal: Reshape the BOV flange to match the pipe's curvature.

Tools and materials

  • Air-Powered Die Grinder — Reshaping the BOV flange
  • BOV Flange — The component being reshaped
  • Carbide Rasp Bit — Grinding aluminum
  • Safety Glasses — Eye protection during grinding
  • Lubricant — Preventing aluminum galling during grinding

What they say

Hide

these parts from in here oh yeah this is what i use for this stuff it's just like a carbide rasp bit similar to what would use like port a cylinder head or something so it throws aluminum pretty good this is john's ctsv of john lawson the owner of triple seven this car made 1.3 bazillion horsepower about two hours ago so stay tuned for that okay nothing it's like wow this guy's an idiot well if i wanted to call you an idiot i would just do that all right well for being an idiot you can call me new yet cool i've earned it i'm probably going to hit my finger it happens sometimes let's see how much better it fits now you really should do this in a vise but there's not one over here i've said this before but don't try this at home unless it works and when you're carving it you do it at a point to like radius with it that helps it seat better if you just did it like this then you would not um it would take you longer the aluminum has a tendency to gall up inside here it just does it doesn't if you lubricate this better but you know it'll be fine ready for the grand test here wow look at that wow it's still a gap a little bit but with

Auto-generated from the video audio.