You must be logged in to rate content!
3 minute read
82mm throttle body
Compliments of kjlindgr @ http://mbworld.org
9-21-2010
This has been discussed quite a few times, I know. Just thought I'd share my experiences as well. There are probably easier ways to accomplish this task, but I made the most of what I had and it all worked out pretty well.
Fitment is perfect. Idle is perfect.
82mm throttle body straight from Mercedes. This is $800 in a box:
Nobody seems to want to share the part number with the world. I think that's just silly:
I found a hunk of 1/2" thick aluminum plate and started making the adapter plate needed to fit onto the stock supercharger snout:
Using a hole-saw, I cut the throttle body inlet hole undersized, just to remove most of the meat:
Then used a boring bar to bore the hole to size:
Here's the finished product with holes drilled and tapped:
Here's the stock supercharger snout. I cleaned it up a little and removed all the miscellaneous fittings and other fun-buttons:
A good visual to see what 74mm looks like compared to 82mm:
I made a little jig to hold the snout at the right angle and got busy with the boring bar again. Indexable carbide cutters rule:
Tack welded onto the newly bored supercharger snout:
All done:
I didn't have any baseline numbers to do a before/after comparison...plus, my engine setup is completely different from before so I don't have much to compare to as well. Anything that helps the engine breathe better is a good thing.
Enjoy!