Increase Boost - W203 C Class
Thread Starter
Newbie
Joined: Feb 2006
Posts: 5
Likes: 0
From: Australia - Sydney
C200 Kompressor
Increase Boost - W203 C Class
Hi,
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
Member
Joined: Mar 2005
Posts: 242
Likes: 1
Originally Posted by Mason
Hi,
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
The pulley from kleemann does help in terms of boost. Besides, get the manifold change as well. The stock manifold IMO is a joke...
Almost a Member!
Joined: Jan 2006
Posts: 32
Likes: 0
From: Singapore
MY04 C200K 5AT
Originally Posted by Mason
Hi,
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
Has anyone tried to increase the boost their kompressor (super charger) is feeding the engine??
Im just interested as thats the main difference between the C180, C200 & C230 engine (appart from a little compression, obviously im talking about the 1.8 liter engine)
Any info would help.
Thanks
Thread Starter
Newbie
Joined: Feb 2006
Posts: 5
Likes: 0
From: Australia - Sydney
C200 Kompressor
Thanks for the help! I am really new to Super chargers (was a WRX turbo boy).
Is it also the gearing in the super charger that limits the amount of "puff" the supercharger puts out? With a turbo you can normally get at least 30-40 psi but its the wastegate and BOV that limits the amount fed into the manifold?
Also, doesn’t the MB have a boost feed back to the ECU. Where the hell is it located.... If you put a simple bleed valve in the line you should be able to "trick" the ECU into thinking that its not producing enough boost and problem solved we have access to almost free power upgrades (only if you don’t blow up you engine trying to get too much boost )
.
Thanks
Is it also the gearing in the super charger that limits the amount of "puff" the supercharger puts out? With a turbo you can normally get at least 30-40 psi but its the wastegate and BOV that limits the amount fed into the manifold?
Also, doesn’t the MB have a boost feed back to the ECU. Where the hell is it located.... If you put a simple bleed valve in the line you should be able to "trick" the ECU into thinking that its not producing enough boost and problem solved we have access to almost free power upgrades (only if you don’t blow up you engine trying to get too much boost )
.
Thanks
Almost a Member!
Joined: Jan 2006
Posts: 32
Likes: 0
From: Singapore
MY04 C200K 5AT
Originally Posted by Mason
Thanks for the help! I am really new to Super chargers (was a WRX turbo boy).
Is it also the gearing in the super charger that limits the amount of "puff" the supercharger puts out? With a turbo you can normally get at least 30-40 psi but its the wastegate and BOV that limits the amount fed into the manifold?
Also, doesn’t the MB have a boost feed back to the ECU. Where the hell is it located.... If you put a simple bleed valve in the line you should be able to "trick" the ECU into thinking that its not producing enough boost and problem solved we have access to almost free power upgrades (only if you don’t blow up you engine trying to get too much boost )
.
Thanks
Is it also the gearing in the super charger that limits the amount of "puff" the supercharger puts out? With a turbo you can normally get at least 30-40 psi but its the wastegate and BOV that limits the amount fed into the manifold?
Also, doesn’t the MB have a boost feed back to the ECU. Where the hell is it located.... If you put a simple bleed valve in the line you should be able to "trick" the ECU into thinking that its not producing enough boost and problem solved we have access to almost free power upgrades (only if you don’t blow up you engine trying to get too much boost )
.
Thanks
1. Limit on boost produced by the supercharger is a function of the design. Like any turbine, there will be a flow limit where it's performance will start to degrade. You just can't keep piling in RPMs onto the input shaft to get more boost.
2. In the turbo world, most turbo's generate more boost than is necessary, and the wastegate stops everything from going Bang. I believe in the supercharger world, things are a little more predictable - sc is driven by engine crank, so you'd know exectly how fast, and hence, how much compression, you'd get for a given engine speed. Therefore, whilst there is a bypass valve to bleed off excess pressure (overboost), I don't think it's as big as in the turbine world.
3. There is a vacuum hose in the engine bay that provides boost pressure. I am sure that it's there for diagnostics purposes, as well as controlling the bypass valve....
Anyone out there with similar experience?
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,221
Likes: 11
From: Sydney, Australia
W203 slightly modified
Originally Posted by jrustrick
Like you, I came from a turbine world... where some of the principles still apply, but others are subtly different. From what I understand:
1. Limit on boost produced by the supercharger is a function of the design. Like any turbine, there will be a flow limit where it's performance will start to degrade. You just can't keep piling in RPMs onto the input shaft to get more boost.
2. In the turbo world, most turbo's generate more boost than is necessary, and the wastegate stops everything from going Bang. I believe in the supercharger world, things are a little more predictable - sc is driven by engine crank, so you'd know exectly how fast, and hence, how much compression, you'd get for a given engine speed. Therefore, whilst there is a bypass valve to bleed off excess pressure (overboost), I don't think it's as big as in the turbine world.
3. There is a vacuum hose in the engine bay that provides boost pressure. I am sure that it's there for diagnostics purposes, as well as controlling the bypass valve....
Anyone out there with similar experience?
1. Limit on boost produced by the supercharger is a function of the design. Like any turbine, there will be a flow limit where it's performance will start to degrade. You just can't keep piling in RPMs onto the input shaft to get more boost.
2. In the turbo world, most turbo's generate more boost than is necessary, and the wastegate stops everything from going Bang. I believe in the supercharger world, things are a little more predictable - sc is driven by engine crank, so you'd know exectly how fast, and hence, how much compression, you'd get for a given engine speed. Therefore, whilst there is a bypass valve to bleed off excess pressure (overboost), I don't think it's as big as in the turbine world.
3. There is a vacuum hose in the engine bay that provides boost pressure. I am sure that it's there for diagnostics purposes, as well as controlling the bypass valve....
Anyone out there with similar experience?
