Graphic throttle body info
MBWorld Fanatic!
Joined: Oct 2011
Posts: 1,060
Likes: 38
From: USA
'06 E55 AMG
Thanks brotha. Promised myself that I won't mod it until the E55 is running like a swiss watch. Its really been hard to keep the wrenches off of it since they respond so well to mods. But lets just say I'm in the accumulation stage of the mods. I think my garage is good for an easy 250hp bump on that thing
.
Just as long as we don't loose you from this community! Hmmm, the V is tempting...
MBWorld Fanatic!
Joined: Oct 2011
Posts: 2,279
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From: A to the Z (the state)
'06 E55
MBWorld Fanatic!
Joined: Jul 2012
Posts: 4,517
Likes: 1,517
From: Orbiting the planet
This place is a joke.
I haven't installed my 82mm yet...but there is something else all these cars have in common- The supercharger, intake manifold, supercharger inlet, injectors and vacuum lines were all removed and reinstalled. This leads to numerous opportunities to introduce a vacuum leak. It's easy to damage an intake gasket, have a cracked vacuum hose or many other places for a small, hard to detect vacuum leak. Also with all the different methods of bolting on the 82, there is another chance for a vacuum leak at any adapter plate. The injector o-rings are another place to look. Those with problems I would be extra vigilant in checking for vacuum leaks, or a gasket not seated properly. Unfortunately it's not easy to do or to see on our engines. MB has a special tool, basically guide pins that hold the intake gaskets in place and guide the heavy supercharger down straight. I can see one of the thin intake gaskets being damaged by not using this. Recently I replaced an intake manifold on a 272 Mecedes engine, and although I was extremely careful with the gasket, it ended up slipping out of place and caused a very minor vacuum leak.
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
I haven't installed my 82mm yet...but there is something else all these cars have in common- The supercharger, intake manifold, supercharger inlet, injectors and vacuum lines were all removed and reinstalled. This leads to numerous opportunities to introduce a vacuum leak. It's easy to damage an intake gasket, have a cracked vacuum hose or many other places for a small, hard to detect vacuum leak. Also with all the different methods of bolting on the 82, there is another chance for a vacuum leak at any adapter plate. The injector o-rings are another place to look. Those with problems I would be extra vigilant in checking for vacuum leaks, or a gasket not seated properly. Unfortunately it's not easy to do or to see on our engines. MB has a special tool, basically guide pins that hold the intake gaskets in place and guide the heavy supercharger down straight. I can see one of the thin intake gaskets being damaged by not using this. Recently I replaced an intake manifold on a 272 Mecedes engine, and although I was extremely careful with the gasket, it ended up slipping out of place and caused a very minor vacuum leak.
Banned
Joined: Apr 2012
Posts: 668
Likes: 2
From: Racine, WI
2003 E55 AMG
I haven't installed my 82mm yet...but there is something else all these cars have in common- The supercharger, intake manifold, supercharger inlet, injectors and vacuum lines were all removed and reinstalled. This leads to numerous opportunities to introduce a vacuum leak. It's easy to damage an intake gasket, have a cracked vacuum hose or many other places for a small, hard to detect vacuum leak. Also with all the different methods of bolting on the 82, there is another chance for a vacuum leak at any adapter plate. The injector o-rings are another place to look. Those with problems I would be extra vigilant in checking for vacuum leaks, or a gasket not seated properly. Unfortunately it's not easy to do or to see on our engines. MB has a special tool, basically guide pins that hold the intake gaskets in place and guide the heavy supercharger down straight. I can see one of the thin intake gaskets being damaged by not using this. Recently I replaced an intake manifold on a 272 Mecedes engine, and although I was extremely careful with the gasket, it ended up slipping out of place and caused a very minor vacuum leak.
MBWorld Fanatic!
Joined: Sep 2002
Posts: 1,719
Likes: 12
From: West
2005 E55 Wagon
Ok, I give up. I run fine with the 80TB with a grinded shaft, after I do that adaption with Star that Alid showed me. I reinstalled the 82tb and its a problem. I can not get to idle right. I took a vid of what it was doing and sent it to Shardul. I cant post the vid with my ipad but maybe Shardulw will be kind enought to post for me and all of you can see this demonic 82tb high idlimg in my wagon. I am 100% certain there are no vac leaks and have sprayed soapy water everywhere to make sure. I have used all the Star ways to get the 82tb to work on my car but to nothing helping. I have tried over and over again the hard tb reset. Maybe I was sent a bad 82 tb... at this point I give up, will put back on my proven 80 tb and will set the 82tb on fire.
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Super Member
Joined: Mar 2011
Posts: 502
Likes: 0
From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
Jcjmw, I have a Audi 82 that worked fine on my car that you are welcome to try so that you know for certain that its the tb. If the bolt pattern is different from the mb then you can at least swap the caps to see if the problem is there.
Update for everyone else, I went ahead and bought one of these and I'm debating whether or not to install it.
http://www.splitsec.com/products/psc1/PSC1003.htm
Basically what it does is take the signal from the map sensor, and will alter it going to the ecu if certain parameters are met. Based on the logs I have, I am thinking of using throttle position and rpm to adjust. For those of you that are logging, I'd be interested in knowing if you have isolated it to a low map reading (excessive vacuum) or a high map reading (more flow). What I see on my car it is excessive flow for a given throttle opening causing it. Given that its in closed loop, I believe the map sensors reading in this range can afford to be off by quite a bit since the other sensors will get the afr and timing right. So I'm thinking of altering the signal in a way where the stock ecu doesn't fall off the map, but is still able to adjust in closed loop. Talking to others, you would think that this could be fixed in the tune directly but it turns out the closed loop operation of the ecu is vastly more complicated than the typical open loop maps the tuners are adjusting. Still a few other things to consider before installing it but I would be interested in hearing if others see the same in their logs.
Update for everyone else, I went ahead and bought one of these and I'm debating whether or not to install it.
http://www.splitsec.com/products/psc1/PSC1003.htm
Basically what it does is take the signal from the map sensor, and will alter it going to the ecu if certain parameters are met. Based on the logs I have, I am thinking of using throttle position and rpm to adjust. For those of you that are logging, I'd be interested in knowing if you have isolated it to a low map reading (excessive vacuum) or a high map reading (more flow). What I see on my car it is excessive flow for a given throttle opening causing it. Given that its in closed loop, I believe the map sensors reading in this range can afford to be off by quite a bit since the other sensors will get the afr and timing right. So I'm thinking of altering the signal in a way where the stock ecu doesn't fall off the map, but is still able to adjust in closed loop. Talking to others, you would think that this could be fixed in the tune directly but it turns out the closed loop operation of the ecu is vastly more complicated than the typical open loop maps the tuners are adjusting. Still a few other things to consider before installing it but I would be interested in hearing if others see the same in their logs.
MBWorld Fanatic!
Joined: Sep 2002
Posts: 1,719
Likes: 12
From: West
2005 E55 Wagon
Jcjmw, I have a Audi 82 that worked fine on my car that you are welcome to try so that you know for certain that its the tb. If the bolt pattern is different from the mb then you can at least swap the caps to see if the problem is there.
Update for everyone else, I went ahead and bought one of these and I'm debating whether or not to install it.
http://www.splitsec.com/products/psc1/PSC1003.htm
Basically what it does is take the signal from the map sensor, and will alter it going to the ecu if certain parameters are met. Based on the logs I have, I am thinking of using throttle position and rpm to adjust. For those of you that are logging, I'd be interested in knowing if you have isolated it to a low map reading (excessive vacuum) or a high map reading (more flow). What I see on my car it is excessive flow for a given throttle opening causing it. Given that its in closed loop, I believe the map sensors reading in this range can afford to be off by quite a bit since the other sensors will get the afr and timing right. So I'm thinking of altering the signal in a way where the stock ecu doesn't fall off the map, but is still able to adjust in closed loop. Talking to others, you would think that this could be fixed in the tune directly but it turns out the closed loop operation of the ecu is vastly more complicated than the typical open loop maps the tuners are adjusting. Still a few other things to consider before installing it but I would be interested in hearing if others see the same in their logs.
Update for everyone else, I went ahead and bought one of these and I'm debating whether or not to install it.
http://www.splitsec.com/products/psc1/PSC1003.htm
Basically what it does is take the signal from the map sensor, and will alter it going to the ecu if certain parameters are met. Based on the logs I have, I am thinking of using throttle position and rpm to adjust. For those of you that are logging, I'd be interested in knowing if you have isolated it to a low map reading (excessive vacuum) or a high map reading (more flow). What I see on my car it is excessive flow for a given throttle opening causing it. Given that its in closed loop, I believe the map sensors reading in this range can afford to be off by quite a bit since the other sensors will get the afr and timing right. So I'm thinking of altering the signal in a way where the stock ecu doesn't fall off the map, but is still able to adjust in closed loop. Talking to others, you would think that this could be fixed in the tune directly but it turns out the closed loop operation of the ecu is vastly more complicated than the typical open loop maps the tuners are adjusting. Still a few other things to consider before installing it but I would be interested in hearing if others see the same in their logs.
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
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From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
MBWorld Fanatic!
Joined: Jul 2012
Posts: 4,517
Likes: 1,517
From: Orbiting the planet
This place is a joke.
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,226
Likes: 24
Mercedes
I'm about to install a larger TB, and all this talk is making me wonder if I should skip installing the shaft grinded 82mm I have, and instead use a factory 80mm I bought a while back. How much better is the 82 over the 80?
MBWorld Fanatic!
Joined: Sep 2002
Posts: 1,719
Likes: 12
From: West
2005 E55 Wagon
I got my 82 from forst gump 9 and he assures me it is good. I think it just my car.
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
Likes: 20
From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
Super Member
Joined: Mar 2011
Posts: 502
Likes: 0
From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
MBWorld Fanatic!
Joined: Dec 2008
Posts: 2,190
Likes: 35
shrimp boat
The 80 is swappable with the 82, but you'll have to swap the wire 1&4 to make it works. Or you can just use the tps harness that designed for the 80 (wires already swapped in that harness from MB).
