Re: [MBZ] MBC's

[Karl Wittnebel via Mercedes]

Interesting question. It could depend upon level of boost achieved. At
12psi you are raising intake air temp by 165 degrees. At the limit of the
stock turbo compressor, you might get to pressure ratio of 2.7 and a delta
of 264 degrees, or 100 degrees higher than stock, assuming same fueling
level. These numbers are from the "stock om603" sheet on this spreadsheet,
which is cribbed from w124performance.com

https://www.dropbox.com/s/i3nswav2j7mstnr/DieselCompoundCalculator_OM606.xlsx?dl=0

Gsxr measured 1400f on a long uphill freeway pull, stock boost and fuel
with the 603:

https://r.tapatalk.com/shareLink?url=http%3A%2F%2Fwww%2Epeachparts%2Ecom%2Fshopforum%2Fshowthread%2Ephp%3Ft%3D121201_tid=121201_fid=31137_type=t
OM603 EGT readings

So intake air temp increase of 100f could be significant with extended high
load operation, as 1400 is already on the limit of acceptable. But you
would really need to hammer on it for some minutes to get there, and have a
blocked wastegate. The wastegate is going to blow open with exhaust
backpressure only at some point also, even with the hose clamped, which
will limit max boost to less than 2.7 probably anyway in this test
scenario. But it is all right on the edge.

I think we can see why the alda safety switch is there on the stock motor
=:-)

On Jan 23, 2017 12:37 PM, "Meade Dillon via Mercedes" 
wrote:

> Yes, unless the over-boost protection circuit kicked in to limit fuel.
> With increasing boost, the temperature of the charge air goes up, which
> directly translates to higher exhaust gas temperatures.  Increasing the
> boost without adding fuel just adds heat, which is not very nice in terms
> of engine wear.  No gain in performance, shortens engine life.  I don't
> know if piston meltdown would still be a risk if the fuel were limited by
> cutting off the signal to the ALDA, don't really want to know.
>
> -
> Max
> Charleston SC
>
> On Mon, Jan 23, 2017 at 3:30 PM, OK Don via Mercedes <
> mercedes@okiebenz.com>
> wrote:
>
> > Would it, with fuel limited by the IP? Too lean isn't much of a problem
> in
> > Diesels, IIRC.
> >
> > On Mon, Jan 23, 2017 at 2:28 PM, Meade Dillon via Mercedes <
> > mercedes@okiebenz.com> wrote:
> >
> > >   Over boosting for too long can very quickly lead to
> > > piston meltdown.
> > >
> > > -
> > > Max
> > > Charleston SC
> > > --
> > >
> > OK Don
> >
> > *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many
> of
> > our people need it sorely on these accounts.”* – Mark Twain
> >
> > "There are three kinds of men: The ones that learns by reading. The few
> who
> > learn by observation. The rest of them have to pee on the electric fence
> > for themselves."
> >
> > WILL ROGERS, *The Manly Wisdom of Will Rogers*
> > 2013 F150, 18 mpg
> > 2012 Passat TDI DSG, 44 mpg
> > 1957 C182A, 12 mpg - but at 150 mph!
> > ___
> > http://www.okiebenz.com
> >
> > To search list archives http://www.okiebenz.com/archive/
> >
> > To Unsubscribe or change delivery options go to:
> > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >
> >
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>
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Re: [MBZ] MBC's

[Mitch Haley via Mercedes]

> On January 23, 2017 at 10:52 PM Karl Wittnebel via Mercedes 

> Otherwise the only thing that will really help spool it is putting max
> throttle instantly when you start to accelerate. Check your linkages to be
> sure you are maxing the pump level with pedal on the floor.


Gotta agree with Karl on this one. 
Partial throttle is going to cost you thrust at low RPM. 
There's an adjustment procedure in the book, should be followed step by step in 
order.

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Re: [MBZ] MBC's

[Curley McLain via Mercedes]

Thanks for a thorough explanation.  I did not realize the 
___(force of evil which can't be mentioned on list)  had so 
thoroughly instilled fear into the owner of every test bench in the 
country.


In the middle of the country, there are many pickups that are hopped up, 
(perhaps the majority) and many tractors using Bosch pumps that are 
overfuelled, for pulling or for field work.  I am still a bit confused 
about the dichotomy between PKW use and other uses.   The lack of 
availability of the elements is one explanation.  I guess the other 
overfuelled Bosch IP tuning is in applications that don't use the MW 
pump, so elements are available.



Karl Wittnebel via Mercedes 
January 24, 2017 at 2:28 AM
A fair question on the pump, but go ahead and try to find a shop in the US
that will do it. For liability and epa reasons most will not send a pump
out the door with anything other than factory fuel level in a passenger
car.

No one in the US can put larger diameter elements into an MW pump, because
those elements are a custom design and the only person who has them is
dieselmeken. He would sell them and you could have a shop here install 
them

if they would do it.You could also switch to an m-pump from the mw and
there are several makers of larger elements for those pumps. If you can
find a shop to install them, you could send away for elements and have the
pump rebuilt here and set for more fuel also. This would be the best 
option

if insane fueling and boost are planned/desired.

Cummins pumps are completely different. The mechanical pumps on the 
earlier

motors can be tuned by the user with a few simple adjustments: http://
dieseldatabase.com/turning-up-a-p7100-pump/

Some 4bt and 6bt motors came with Lucas CAV pumps, which are completely
different and not as simple to adjust, but they are adjustable also. These
were mostly in marine and industrial gen set and pump applications and the
pumps had no Alda mechanism.

Later cummins 5.9 motors use electronic pumps that are tunable with chips
of course.


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Re: [MBZ] MBC's

[Karl Wittnebel via Mercedes]

A fair question on the pump, but go ahead and try to find a shop in the US
that will do it. For liability and epa reasons most will not send a pump
out the door with anything other than factory fuel level in a passenger
car.

No one in the US can put larger diameter elements into an MW pump, because
those elements are a custom design and the only person who has them is
dieselmeken. He would sell them and you could have a shop here install them
if they would do it.You could also switch to an m-pump from the mw and
there are several makers of larger elements for those pumps. If you can
find a shop to install them, you could send away for elements and have the
pump rebuilt here and set for more fuel also. This would be the best option
if insane fueling and boost are planned/desired.

Cummins pumps are completely different. The mechanical pumps on the earlier
motors can be tuned by the user with a few simple adjustments: http://
dieseldatabase.com/turning-up-a-p7100-pump/

Some 4bt and 6bt motors came with Lucas CAV pumps, which are completely
different and not as simple to adjust, but they are adjustable also. These
were mostly in marine and industrial gen set and pump applications and the
pumps had no Alda mechanism.

Later cummins 5.9 motors use electronic pumps that are tunable with chips
of course.

On Jan 23, 2017 9:10 PM, "Curley McLain via Mercedes" 
wrote:

> In short, Karl is saying "Drive it like a 190Dc, 200D, 220D or 240D!"
>
> Why send the pump to sweeden?  There are Bosch shops that know MB pumps in
> the US, and probably a few that "turn up" the dogde and frod pickups, so
> are not opposed to pumping a little more fuel.
>
> Karl Wittnebel via Mercedes 
>> January 23, 2017 at 9:52 PM
>> The kkk spools a bit faster than the garrett. So that is the first
>> question. Which do you have?
>>
>> The thing that will help drivability most is to just keep it floored until
>> you hit target speed. You should think about putting a simple pressure
>> nipple, tubing and gauge through the window to check the boost. If not
>> hitting target psi (9psi iirc) then you could get more power by turning it
>> up to that, or a bit beyond to 12 or so.
>>
>> Otherwise the only thing that will really help spool it is putting max
>> throttle instantly when you start to accelerate. Check your linkages to be
>> sure you are maxing the pump level with pedal on the floor.
>>
>> Next step you can send the pump to Sweden and they will adjust it for max
>> fuel, 62cc/1000 injections per injector. This livens it up a bit.
>>
>> OR pay the big bucks and go for a rebuild with larger elements. But then
>> you start to need a bigger turbo, which gets a bit complicated.
>>
>>
>>
>>
>> On Jan 22, 2017 9:45 PM, "Michael Esh via Mercedes"> >
>> wrote:
>>
>> Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag
>> a totally different issue?
>> Mike
>>
>>
>> On Jan 22, 2017, at 8:06 PM, Meade Dillon via Mercedes<
>>>
>> mercedes@okiebenz.com>  wrote:
>>
>>> Thanks Karl, I ended up getting this one:
>>>
>>> http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php
>>>
>>> I did look at that model you posted.  After reading up a bit, this one
>>> got
>>> high marks.  I read a few reviews on Amazon for other cheaper models that
>>> ended with "I bought a Hallman MBC, should have done that in the
>>> beginning."  Made in USA, and has a ceramic ball for faster response
>>>
>> times.
>>
>>> -
>>> Max
>>> Charleston SC
>>>
>>> On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel
>>> wrote:
>>>
>>> This is what I would buy:
 https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
 srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
 Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
 HKtMHa-Gp1XLCgaAvV98P8HAQ




 ___
>>> http://www.okiebenz.com
>>>
>>> To search list archives http://www.okiebenz.com/archive/
>>>
>>> To Unsubscribe or change delivery options go to:
>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>
>>>
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>> ___
>> http://www.okiebenz.com
>>
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>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>> Michael Esh via Mercedes 
>> January 22, 2017 at 11:45 PM
>> Would an MBC help reduce the turbo lag my 1985 300D. Or is fixing the lag
>> a totally different issue?
>> Mike
>>
>>
>>
>> ___
>> http://www.okiebenz.com
>>
>> To 

Re: [MBZ] MBC's

[Curley McLain via Mercedes]

In short, Karl is saying "Drive it like a 190Dc, 200D, 220D or 240D!"

Why send the pump to sweeden?  There are Bosch shops that know MB pumps 
in the US, and probably a few that "turn up" the dogde and frod pickups, 
so are not opposed to pumping a little more fuel.



Karl Wittnebel via Mercedes 
January 23, 2017 at 9:52 PM
The kkk spools a bit faster than the garrett. So that is the first
question. Which do you have?

The thing that will help drivability most is to just keep it floored until
you hit target speed. You should think about putting a simple pressure
nipple, tubing and gauge through the window to check the boost. If not
hitting target psi (9psi iirc) then you could get more power by turning it
up to that, or a bit beyond to 12 or so.

Otherwise the only thing that will really help spool it is putting max
throttle instantly when you start to accelerate. Check your linkages to be
sure you are maxing the pump level with pedal on the floor.

Next step you can send the pump to Sweden and they will adjust it for max
fuel, 62cc/1000 injections per injector. This livens it up a bit.

OR pay the big bucks and go for a rebuild with larger elements. But then
you start to need a bigger turbo, which gets a bit complicated.




On Jan 22, 2017 9:45 PM, "Michael Esh via Mercedes"
wrote:

Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag
a totally different issue?
Mike



On Jan 22, 2017, at 8:06 PM, Meade Dillon via Mercedes<

mercedes@okiebenz.com>  wrote:

Thanks Karl, I ended up getting this one:

http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php

I did look at that model you posted.  After reading up a bit, this one got
high marks.  I read a few reviews on Amazon for other cheaper models that
ended with "I bought a Hallman MBC, should have done that in the
beginning."  Made in USA, and has a ceramic ball for faster response

times.

-
Max
Charleston SC

On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel
wrote:


This is what I would buy:
https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
HKtMHa-Gp1XLCgaAvV98P8HAQ





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Michael Esh via Mercedes 
January 22, 2017 at 11:45 PM
Would an MBC help reduce the turbo lag my 1985 300D. Or is fixing the 
lag a totally different issue?

Mike



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Meade Dillon via Mercedes 
January 22, 2017 at 7:06 PM
Thanks Karl, I ended up getting this one:

http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php

I did look at that model you posted. After reading up a bit, this one got
high marks. I read a few reviews on Amazon for other cheaper models that
ended with "I bought a Hallman MBC, should have done that in the
beginning." Made in USA, and has a ceramic ball for faster response times.

-
Max
Charleston SC

On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel 
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Karl Wittnebel via Mercedes 
January 22, 2017 at 6:41 PM
This is what I would buy:
https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_HKtMHa-Gp1XLCgaAvV98P8HAQ



On Jan 22, 2017 3:51 PM, "Meade Dillon via Mercedes" 


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Meade Dillon via Mercedes 
January 22, 2017 at 5:51 PM
Manual Boost 

Re: [MBZ] MBC's

[Karl Wittnebel via Mercedes]

The kkk spools a bit faster than the garrett. So that is the first
question. Which do you have?

The thing that will help drivability most is to just keep it floored until
you hit target speed. You should think about putting a simple pressure
nipple, tubing and gauge through the window to check the boost. If not
hitting target psi (9psi iirc) then you could get more power by turning it
up to that, or a bit beyond to 12 or so.

Otherwise the only thing that will really help spool it is putting max
throttle instantly when you start to accelerate. Check your linkages to be
sure you are maxing the pump level with pedal on the floor.

Next step you can send the pump to Sweden and they will adjust it for max
fuel, 62cc/1000 injections per injector. This livens it up a bit.

OR pay the big bucks and go for a rebuild with larger elements. But then
you start to need a bigger turbo, which gets a bit complicated.




On Jan 22, 2017 9:45 PM, "Michael Esh via Mercedes" 
wrote:

Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag
a totally different issue?
Mike


> On Jan 22, 2017, at 8:06 PM, Meade Dillon via Mercedes <
mercedes@okiebenz.com> wrote:
>
> Thanks Karl, I ended up getting this one:
>
> http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php
>
> I did look at that model you posted.  After reading up a bit, this one got
> high marks.  I read a few reviews on Amazon for other cheaper models that
> ended with "I bought a Hallman MBC, should have done that in the
> beginning."  Made in USA, and has a ceramic ball for faster response
times.
>
> -
> Max
> Charleston SC
>
> On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel 
> wrote:
>
>> This is what I would buy:
>> https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
>> srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
>> Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
>> HKtMHa-Gp1XLCgaAvV98P8HAQ
>>
>>
>>
>>
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>
> To search list archives http://www.okiebenz.com/archive/
>
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
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Re: [MBZ] MBC's

[Max Dillon via Mercedes]

No, I'm not venturing that far into the horsepower band.  Others have done 
this, but none of what I've read so far indicates that anyone else had this 
problem.

This afternoon on the drive home, my boost gauge indicated about 12.5 psi 
boost, and the car is really driving well now.  There is still a hint of knock, 
I expect that to clear up as I burn out the carbon.  I don't know why I didn't 
get this boost after the initial adjustment, maybe the waste gate seat was 
dirty with carbon, and constantly leaking?
-- 
Max Dillon
Charleston SC
'87 300TD
'95 E300

On January 23, 2017 4:48:11 PM EST, Curley McLain via Mercedes 
 wrote:
>So are you adding an exhaust gas pyrometer to the white whale in 
>addition to upping the fuel and the boost?   (best practice)
>
>Have you tried to contact any of the crazy Finns about this issue? 
>They 
>might have the answer, as I am sure one of them has put a later IP on
>an 
>OM603.
>> Meade Dillon via Mercedes 
>> January 23, 2017 at 2:37 PM
>> Yes, unless the over-boost protection circuit kicked in to limit
>fuel.
>> With increasing boost, the temperature of the charge air goes up,
>which
>> directly translates to higher exhaust gas temperatures. Increasing
>the
>> boost without adding fuel just adds heat, which is not very nice in
>terms
>> of engine wear. No gain in performance, shortens engine life. I don't
>> know if piston meltdown would still be a risk if the fuel were
>limited by
>> cutting off the signal to the ALDA, don't really want to know.
>>
>> -
>> Max
>> Charleston SC
>>
>
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Re: [MBZ] MBC's

[Curley McLain via Mercedes]

So are you adding an exhaust gas pyrometer to the white whale in 
addition to upping the fuel and the boost?   (best practice)


Have you tried to contact any of the crazy Finns about this issue?  They 
might have the answer, as I am sure one of them has put a later IP on an 
OM603.

Meade Dillon via Mercedes 
January 23, 2017 at 2:37 PM
Yes, unless the over-boost protection circuit kicked in to limit fuel.
With increasing boost, the temperature of the charge air goes up, which
directly translates to higher exhaust gas temperatures. Increasing the
boost without adding fuel just adds heat, which is not very nice in terms
of engine wear. No gain in performance, shortens engine life. I don't
know if piston meltdown would still be a risk if the fuel were limited by
cutting off the signal to the ALDA, don't really want to know.

-
Max
Charleston SC



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Re: [MBZ] MBC's

[Meade Dillon via Mercedes]

Yes, unless the over-boost protection circuit kicked in to limit fuel.
With increasing boost, the temperature of the charge air goes up, which
directly translates to higher exhaust gas temperatures.  Increasing the
boost without adding fuel just adds heat, which is not very nice in terms
of engine wear.  No gain in performance, shortens engine life.  I don't
know if piston meltdown would still be a risk if the fuel were limited by
cutting off the signal to the ALDA, don't really want to know.

-
Max
Charleston SC

On Mon, Jan 23, 2017 at 3:30 PM, OK Don via Mercedes 
wrote:

> Would it, with fuel limited by the IP? Too lean isn't much of a problem in
> Diesels, IIRC.
>
> On Mon, Jan 23, 2017 at 2:28 PM, Meade Dillon via Mercedes <
> mercedes@okiebenz.com> wrote:
>
> >   Over boosting for too long can very quickly lead to
> > piston meltdown.
> >
> > -
> > Max
> > Charleston SC
> > --
> >
> OK Don
>
> *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of
> our people need it sorely on these accounts.”* – Mark Twain
>
> "There are three kinds of men: The ones that learns by reading. The few who
> learn by observation. The rest of them have to pee on the electric fence
> for themselves."
>
> WILL ROGERS, *The Manly Wisdom of Will Rogers*
> 2013 F150, 18 mpg
> 2012 Passat TDI DSG, 44 mpg
> 1957 C182A, 12 mpg - but at 150 mph!
> ___
> http://www.okiebenz.com
>
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>
> To Unsubscribe or change delivery options go to:
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Re: [MBZ] MBC's

[OK Don via Mercedes]

Would it, with fuel limited by the IP? Too lean isn't much of a problem in
Diesels, IIRC.

On Mon, Jan 23, 2017 at 2:28 PM, Meade Dillon via Mercedes <
mercedes@okiebenz.com> wrote:

>   Over boosting for too long can very quickly lead to
> piston meltdown.
>
> -
> Max
> Charleston SC
> --
>
OK Don

*“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of
our people need it sorely on these accounts.”* – Mark Twain

"There are three kinds of men: The ones that learns by reading. The few who
learn by observation. The rest of them have to pee on the electric fence
for themselves."

WILL ROGERS, *The Manly Wisdom of Will Rogers*
2013 F150, 18 mpg
2012 Passat TDI DSG, 44 mpg
1957 C182A, 12 mpg - but at 150 mph!
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Re: [MBZ] MBC's

[Meade Dillon via Mercedes]

A better idea would be to just pinch off the hose, assuming an external
waste-gate. I would only do this with a boost gauge of some-sort in place,
even a Mity-vac that has a pressure reading option, so that before / after
can be compared.  Over boosting for too long can very quickly lead to
piston meltdown.

-
Max
Charleston SC

On Mon, Jan 23, 2017 at 3:13 PM, Mitch Haley via Mercedes <
mercedes@okiebenz.com> wrote:

> One way to test that would be to unhook the boost line to the wastegate
> and see if it builds boost faster. Just to test it, not to go driving
> around all day without a wastegate, even though that's a lot less dangerous
> with a diesel than with a gas engine.
> Mitch.
>
>
>
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Re: [MBZ] MBC's

[Mitch Haley via Mercedes]

One way to test that would be to unhook the boost line to the wastegate 
and see if it builds boost faster. Just to test it, not to go driving around 
all day without a wastegate, even though that's a lot less dangerous with a 
diesel than with a gas engine. 
Mitch. 


> On January 23, 2017 at 12:08 PM Meade Dillon via Mercedes 
>  wrote:
> 
> However, if you can believe the sales literature, the MBC can cause boost
> to build faster (at an earlier RPM).  If your waste-gate control valve has
> a weak spring and is opening early, or leaking, then the MBC can help.
>

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Re: [MBZ] MBC's

[Meade Dillon via Mercedes]

Mitch is probably right that an ALDA adjustment should be the first step.
Reducing or removing the shim would have same effect as turning the screw
in.

However, if you can believe the sales literature, the MBC can cause boost
to build faster (at an earlier RPM).  If your waste-gate control valve has
a weak spring and is opening early, or leaking, then the MBC can help.

-
Max
Charleston SC

On Mon, Jan 23, 2017 at 12:45 AM, Michael Esh via Mercedes <
mercedes@okiebenz.com> wrote:

> Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag
> a totally different issue?
> Mike
>
>
>
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Re: [MBZ] MBC's

[Michael Esh via Mercedes]

Thanks for responding Mitch.  The Alda is still sealed and I would kinda like 
to keep it that way. Does removing shims have the same effect/affect?  I 
cleaned the line that comes from the back of the block and although it was 
fairly dirty it did not improve the lag issue. Does the valve/relay that this 
line runs into go bad?
Thanks


Michael E. Esh


> On Jan 23, 2017, at 7:47 AM, Mitch Haley via Mercedes  
> wrote:
> 
> 
>> On January 23, 2017 at 7:25 AM Mitch Haley via Mercedes 
>>  wrote:
>> 
>> 
>> I thought the high stall speed 1985 *TORQUE CONVERTER* was supposed to cut 
>> down on perceived lag?
> 
> 
> Oops, I didn't mean to say high stall speed *turbo*.
> Fixed it above.
> 
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Re: [MBZ] MBC's

[Mitch Haley via Mercedes]

> On January 23, 2017 at 7:25 AM Mitch Haley via Mercedes 
>  wrote:
> 
> 
> I thought the high stall speed 1985 *TORQUE CONVERTER* was supposed to cut 
> down on perceived lag?


Oops, I didn't mean to say high stall speed *turbo*.
Fixed it above.

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Re: [MBZ] MBC's

[Mitch Haley via Mercedes]

Different issue. 
The MBC just prevents pressure from reaching the wastegate solenoid, keeping 
the wastegate closed until a higher pressure is reached. 
Lag is the time it takes to reach the pressure the wastegate is set for. 

I thought the high stall speed 1985 turbo was supposed to cut down on perceived 
lag?
It's possible an ALDA tweak would get more fuel off boost and spin the turbo up 
faster. If the car doesn't smoke at all at full throttle, I'd give this a try. 

Mitch. 

> On January 23, 2017 at 12:45 AM Michael Esh via Mercedes 
>  wrote:
> 
> 
> Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag a 
> totally different issue?
> Mike
> 
> 
> > On Jan 22, 2017, at 8:06 PM, Meade Dillon via Mercedes 
> >  wrote:
> > 
> > Thanks Karl, I ended up getting this one:
> > 
> > http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php
> > 
> > I did look at that model you posted.  After reading up a bit, this one got
> > high marks.  I read a few reviews on Amazon for other cheaper models that
> > ended with "I bought a Hallman MBC, should have done that in the
> > beginning."  Made in USA, and has a ceramic ball for faster response times.
> > 
> > -
> > Max
> > Charleston SC
> > 
> > On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel 
> > wrote:
> > 
> >> This is what I would buy:
> >> https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
> >> srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
> >> Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
> >> HKtMHa-Gp1XLCgaAvV98P8HAQ
> >> 
> >> 
> >> 
> >> 
> > ___
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> > 
> > To search list archives http://www.okiebenz.com/archive/
> > 
> > To Unsubscribe or change delivery options go to:
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> > 
> 
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Re: [MBZ] MBC's

[Michael Esh via Mercedes]

Would an MBC help reduce the turbo lag my 1985 300D.  Or is fixing the lag a 
totally different issue?
Mike


> On Jan 22, 2017, at 8:06 PM, Meade Dillon via Mercedes 
>  wrote:
> 
> Thanks Karl, I ended up getting this one:
> 
> http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php
> 
> I did look at that model you posted.  After reading up a bit, this one got
> high marks.  I read a few reviews on Amazon for other cheaper models that
> ended with "I bought a Hallman MBC, should have done that in the
> beginning."  Made in USA, and has a ceramic ball for faster response times.
> 
> -
> Max
> Charleston SC
> 
> On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel 
> wrote:
> 
>> This is what I would buy:
>> https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
>> srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
>> Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
>> HKtMHa-Gp1XLCgaAvV98P8HAQ
>> 
>> 
>> 
>> 
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Re: [MBZ] MBC's

[Meade Dillon via Mercedes]

Thanks Karl, I ended up getting this one:

http://www.addictiveperformance.com/Hallman-Pro-RX-Kit.php

I did look at that model you posted.  After reading up a bit, this one got
high marks.  I read a few reviews on Amazon for other cheaper models that
ended with "I bought a Hallman MBC, should have done that in the
beginning."  Made in USA, and has a ceramic ball for faster response times.

-
Max
Charleston SC

On Sun, Jan 22, 2017 at 7:41 PM, Karl Wittnebel 
wrote:

> This is what I would buy:
> https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=
> srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=
> Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_
> HKtMHa-Gp1XLCgaAvV98P8HAQ
>
>
>
>
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Re: [MBZ] MBC's

[Karl Wittnebel via Mercedes]

This is what I would buy:
https://m.summitracing.com/parts/tbs-ts-0101-1002?seid=srese1_mmc=pla-google-_-shopping-_-srese1-_-turbosmart=Cj0KEQiAzZHEBRD0ivi9_pDzgYMBEiQAtvxt-DefNr3jKWfRgWeTASm6y1kLjT6t_HKtMHa-Gp1XLCgaAvV98P8HAQ



On Jan 22, 2017 3:51 PM, "Meade Dillon via Mercedes" 
wrote:

> Manual Boost Controllers (MBCs).
>
> I don't want to spend two or three hours adjusting the waste gate rod
> again, only to find that the boost is still out of spec, so I'm going to
> install a manual boost controller.
>
> Which one to get?  The market has been infested with chinee crap MBCs,
> ranging in price from $3.90 to $25.  "Made in US of A" start at about $100,
> with few choices in between.  I'm leaning heavily toward the $100 variety;
> a catastrophic failure of the MBC could melt pistons.
>
> For the un-initiated, a MBC is installed in the boost sense line between
> the turbo charger pressure side (intake) and the waste-gate control valve
> (WGCV), so that the amount of pressure reaching the WGCV can be modulated.
> The MBC design I'm looking at has a simple seat-ball-spring valve, which
> blocks the boost pressure from reaching the WGCV until it exceeds the
> (adjustable) pressure of the spring holding the ball.  Once the pressure
> overcomes the spring, full pressure reaches the WGCV and it will open to
> bleed off boost.
> -
> Max
> Charleston SC
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[MBZ] MBC's

[Meade Dillon via Mercedes]

Manual Boost Controllers (MBCs).

I don't want to spend two or three hours adjusting the waste gate rod
again, only to find that the boost is still out of spec, so I'm going to
install a manual boost controller.

Which one to get?  The market has been infested with chinee crap MBCs,
ranging in price from $3.90 to $25.  "Made in US of A" start at about $100,
with few choices in between.  I'm leaning heavily toward the $100 variety;
a catastrophic failure of the MBC could melt pistons.

For the un-initiated, a MBC is installed in the boost sense line between
the turbo charger pressure side (intake) and the waste-gate control valve
(WGCV), so that the amount of pressure reaching the WGCV can be modulated.
The MBC design I'm looking at has a simple seat-ball-spring valve, which
blocks the boost pressure from reaching the WGCV until it exceeds the
(adjustable) pressure of the spring holding the ball.  Once the pressure
overcomes the spring, full pressure reaches the WGCV and it will open to
bleed off boost.
-
Max
Charleston SC
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