Audi A8 4E 4.2 supercharger

[nakata]

So let show my project 4.2 supercharger
At begging was a normal old A8 with 4.2

RS4 wheel

8 pot brembo at front

and 335 rotor at rear

Then come time for putting the supercharger. I choose eaton m122 from cadillac northstar, and try did will fit it under bonnet.



After that is need to reinforce engine


RS6 4.2 piston and conrod


New set of piston ring

Choose to leave A8 camsfast to be more aggressive than RS one.

Injectors from RS

Then reinforce the gearbox

After fully rebiulded engine with rs6 internal and rebiulded and reinforced gearbox, come time for supercharger



I thing 7 rib belt will handle, so choose longer one

After that thing and for oil cooling
19 row cooler


and integrate oil thermostat

Then is need to short the snout to fit


Then come time and for trothelbody and custom intake for it



One picture before startup

Then came time for first fireup

[nakata]

Sorry but it not give me to share over 30 picture to continue.

- - - Updated - - -

How fast came boost

Whole exhaust from S8 4E and towbar to be full picture.

And almost at end whole S8 4E front conversion with how look supercharger under bonnet.


Still continued for upgrades...

[BrianC72gt]

Nice job! The NOS supercharger assembly from the Cadillac STS-V was selling for about $700 a few years back on e-bay It looks like you cut the cast-in runners off of the supercharger body and made your own. Do you think the compressor is well supported with just a few skinny bolts holding it up since you cut the cast-in runners off? I was wondering about that.

[ICU2]

You sir are like a mad AUDI scientist!!! What an ambitious undertaking, are you doing the tuning as well? Interested & looking forward to future posts/updates.

[nakata]

Thanks, you can view more details here
https://www.facebook.com/a8d3project/