BoBright

Newbie, I searched but I can't seem to find the answer to this question but it would appear either Berti or someone else could explain this to me. It seems easy enough to locate a 82mmT/B as it was produced in the years of the cars mentioned earlier in this thread. I get the fact the 82mm T/B doesn't match up with the inlet "snout" as it has been called on this thread.

Is the reason the spacer is being made for this upgrade because there is not a 82mm inlet that would fit or mate correctly? Or is this spacer designed to save the cost?

I'm asking because I am looking at purchasing one and they are saying it is bolt on plug and play. That isn't what I am reading here. Thx for your input. (I have had my car about a year now and love it.)



Thanks for your input.

HD

Bramage

The supercharger inlet (snout) does not have a large enough opening for the 82MM. The butterfly will not open, plus, even if it did, there would be no advantage to a larger throttle body if the immediate opening in still 74mm.

There is no plug and play upgrade in 82MM

• The Supercharger has to come off
• The snout machined
• New bolt pattern must be accommodated with either an adapter plate (as shown) a bolt on adapter plate (not recommended because they leak) or new material is added (welded) and new holes tapped
• Replace all the gaskets (SC to heads / Intake to SC / Snout / Throttle Body
• Bolt it all back up
• Change "Y-Pipe" to accommodate larger TB

Done




This is a big effort and cost some $$, the least of which is the actual throttle body. Unfortunately, its not a matter of slapping on a bigger TB.. as you can see.

In my opinion, this mod should be down on the list:


1. Heat Exchanger / Split Cooling
2. Pulley + Tune
3. Headers

If you need more after that, come back to 82mm

Hulk

Well said

Firechaser

I just got mine done and started her up 10 minutes ago...No CEL and all is good
It was a bit of a job though...and I am very well tooled w/ a lift.

WHIRLINFIST

Did you have to switch your TB wires around like Eurocharged suggest? 1 to 4 and 5 to 6?

Joncl

You only have to switch wiring when it's a non mb tb

Roverron

Not true some MB TB's need pins switched to

Joncl

Why would an mb tb need the pins to be switched to work with the mb ecu?
Can you tell me which ones?

Roverron

It depends on how they mount.
Which cars they come off of.

Joncl

We are talking about the wiring here, right?

Can someone else confirm this, have done a few of these with friends and some came from s550 or others were unknown but were mb tb and all plugged right in

cm60k

No need to swapping the wires with 82mm S550, its plug & play,,

I think wires swapping need to be done with "82mm Audi & 80mm SL55"....!!

ZAYED,,

Joncl

Yes with the Audi and Porsche throttle bodies the wires have to be swapped

Roverron

And some of the MB 80's or ones off the v12's

Roverron

The 82's from the 550's no

Joncl

No use using the 80mm as they are really 78mm inside diameter

Denroll

I've got an 82mm TB with an adapter plate and the larger Y-pipe for sale in another thread

Max.H

X 2 Stellar indeed. He knows what he's doing.

MAN55LE

From ameisenkiller @http://forum.amg-owners-club.org/pub...lklappenumbau/
Pinbelegung Fahrzeug = Pinbelegung alte DK A113 141 06 25 bzw A113 141 01 25

74mm Drosselklappe Serie: A113 141 01 25 bzw. A113 141 06 25
Pin 1 = Motor +
Pin 2 = UIP Poti +
Pin 3 = IPM Poti -
Pin 4 = Motor -
Pin 5 = IP2S Poti 2
Pin 6 = IP1S Poti 1
(Laut Zeichnung)

80mm Drosselklappe A275 141 06 25 bzw. A275 140 00 04
Pin 1 = Motor -
Pin 2 = IPM Poti -
Pin 3 = UIP Poti +
Pin 4 = Motor +
Pin 5 = IP2S Poti 2
Pin 6 = IP1S Poti 1

Pin1 mit Pin 4 und Pin2 mit Pin3 an der Drosselklappe müssen getauscht werden.


I bought an 80mm off eBay that came off the v12tt part # 275 141 06 25 .... I'm guessing from this post off of another forum that these are the pins I would have to swap...

Roverron

I'm not sure this is correct
Laut Zeichnung = According to drawing
when I was using an MB 80mm part number A275 141 06 25
I swapped the pins 1+4 and 5+6
if you look up lowprofiles write up he says the same thing for A275 141 06 25 1+4 and 5+6

cnterline

I just did this on my 03 sl55 no switching wires ,welded ears onto snout,Drilled and tapped ,had a different snout with a larger opening which I got from Kleemann when I did an upgrade to the 78 mm throttle body still had to open that up as well as y pipe for air cleaners ,so far no issues,the 78 mm opened a different way and Kleemann supplied a wire harnes with the wires switched,as long as your throttle body opens the same way and its a benz tb you don't have to switch wires

TheOtherDodge

So excuse me if this is a stupid question, but does the SC have to come off to remove the snout?

Joncl

Yes it does

Roverron

the Kleemann harness has the wires switched already

bnzuovr

Looking into installing a oem 82mm throttle body i know i need a adapter plate but will i also need to replace the y pipes that go from the air box to the throttle body also would i be able to bore out my stock s/c inlet and what would be the max recommand size to bore to if possible 80mm or 82mm?

berti_00

Yes you need the larger one... the SL's have a bigger one if you can source one