A teenager who wants to boost a M111.947

[Adamastor]

I there people, my name is Alex im from Portugal.

Im turning 19yr right now and i got my first car 200 Kompressor (With the M111.947 engine 186hp). My engine have more than
420,000Km still running smooth. He runs with LPG!

But...As a young adult e need more power! I need your help guys to tell me witch turbo to choose and internals for this
project

I want to keep running on LPG and get about 250hp on turbo.

What i need:

-Choose a low cost turbocharger to run 250hp safely
-Still using the 2.0 engine! If it needs to get forged internals for this power, tell me witch ones.
-Still running the LPG system (Yes i know, probaly i will need to upgrade the injection).
-Did i need a standalone ECU for tune? Or can i use the stock ECU? If so, can i run LPG on a standalone ECU?

Thanks!

Greetings from Portugal (That country everybody calls Spain)

 

[alexanderfoti]

Why not spin the supercharger faster? You won't get 250bhp, but you will probably get close to 220bhp with good cooling. Maybe not on LPG though.

Whether you can use the ECU, depends on what car its in. Most of them can be remapped unless its a very early kompressor (1996)

 

[Adamastor]

Why not spin the supercharger faster? You won't get 250bhp, but you will probably get close to 220bhp with good cooling. Maybe not on LPG though.

Whether you can use the ECU, depends on what car its in. Most of them can be remapped unless its a very early kompressor (1996)

Because a pulley will destroy the supercharger, and the superchager have too much miles on hit. A supercharger rebuild or 2nd hand can be a little expensive in comparisson to a new turbo. I really perfer the turbo.

You are Alexander? Im Alexandre! Yes dre! Nice to meet you!

 

[Adamastor]

Why not spin the supercharger faster? You won't get 250bhp, but you will probably get close to 220bhp with good cooling. Maybe not on LPG though.

Whether you can use the ECU, depends on what car its in. Most of them can be remapped unless its a very early kompressor (1996)

Its on a E200 Kompressor (1998) probably have the Bosch ME 2.1 ECU

 

[peterws1957]

Why not spin the supercharger faster? You won't get 250bhp, but you will probably get close to 220bhp with good cooling. Maybe not on LPG though.

Whether you can use the ECU, depends on what car its in. Most of them can be remapped unless its a very early kompressor (1996)

Now now AF you can't tell a 19 year old anything he doesn't already know.

 

[Adamastor]

Now now AF you can't tell a 19 year old anything he doesn't already know.

. I like the pulley ideia...I love the shime of the Kompressor ...But i really have the fear of the Kompressor desctruction.

 

[Blobcat]

. I like the pulley ideia...I love the shime of the Kompressor ...But i really have the fear of the Kompressor desctruction.

I know of a M111 engine SLK 230K running a larger pulley - - it goes very well indeed and makes nice noises as well with it's AMG exhaust

 

[Adamastor]

I know of a M111 engine SLK 230K running a larger pulley - - it goes very well indeed and makes nice noises as well with it's AMG exhaust

I here,

A lager pulley? To get power isnt a smaller one?

 

[Blobcat]

I here,

A lager pulley? To get power isnt a smaller one?

Not on the crank... larger pulley on the crank makes the supercharger run faster

 

[Adamastor]

Not on the crank... larger pulley on the crank makes the supercharger run faster

If i do that can i still use stock ECU and LPG system? How much horse power gains? It is safe? Do you know which kit should i use?

Thanks very much guys!

 

[LostKiwi]

Frankly tuning the compressor pulley and remapping is a while lot easier than taking it all off and replacing with a turbo. Replacing with a turbo is likely far more hassle than it's worth.

 

[Frontstep]

How does it affect Insurance ?

In the sunnyish UK it would be an expensive thing to consider at 19.

The larger pulley idea would be a harder issue to determine if it didn't look shiny and new.

A turbo installation would have your Insurance policy likely voided, same as a chip change.

 

[Blobcat]

If i do that can i still use stock ECU and LPG system? How much horse power gains? It is safe? Do you know which kit should i use?

Thanks very much guys!

That I don't know as it's not something I've done @alexanderfoti would know...

 

[LostKiwi]

If i do that can i still use stock ECU and LPG system? How much horse power gains? It is safe? Do you know which kit should i use?

Thanks very much guys!

It depends what your LPG system is rated to in terms of flow and power. If it's already running close to the max then no. Even if you can it will need retuning. You probably need to speak to an LPG specialist.

 

[alexanderfoti]

So reasons to stick with the SC.

1. Much cheaper to rework factory supercharger than it is it worry about exhaust manifolds, exhaust modifications, turbo fitment, location plumbing etc.
2. Positive displacement superchargers response is superior to a turbo
3. Air work on the SC etc will make even more power (porting etc)

Most LPG Systems piggy back on the Engine ecu, so if you remap the engine ecu to add more fuel, then so will the LPG system. As has been mentioned above, if the LPG system has a limit, then you may reach it on this, so I would closely monitor AFR's with an exhaust probe whilst testing