unusual Y-PIPE
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
unusual Y-PIPE
paying attention to the image below you'll find an unusual Y-pipe:
- first, it is not plastic but metallic
- secondly, ducts are much more pronounced than stock
.. so, finally discovered what is the so called " intake duct modification" that tuner MKB offers with his first stage mod, yielding 540hp crank, in combination with Ecu tune only.
note: the above pic shows the full kit inclusive of the throttle body mod that is, indeed, part of a further, different stage.
as all higher rated ecu tunes here give about 530hp, while this one gives 540 ( and I have no reason to doubt it ..)
... means this special Y-pipe design is worth at least 10hp.
Indeed there is more than one german tuner saying that this Ypipe is worth even more
the following cut&paste job gives an immediate comparo with Stock and CFairbox
just wanted to share with you opinions ...
- first, it is not plastic but metallic
- secondly, ducts are much more pronounced than stock
.. so, finally discovered what is the so called " intake duct modification" that tuner MKB offers with his first stage mod, yielding 540hp crank, in combination with Ecu tune only.
note: the above pic shows the full kit inclusive of the throttle body mod that is, indeed, part of a further, different stage.
as all higher rated ecu tunes here give about 530hp, while this one gives 540 ( and I have no reason to doubt it ..)
... means this special Y-pipe design is worth at least 10hp.
Indeed there is more than one german tuner saying that this Ypipe is worth even more
the following cut&paste job gives an immediate comparo with Stock and CFairbox
just wanted to share with you opinions ...
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From: Caribbean/Florida/Colorado
E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
Looks like the same OEM air box hoses, but the Y pipe dose look like it may flow better and may be necessary for a larger throttle body.
The SC housing has been worked over the casting numbers are gone on the MKB.
The SC housing has been worked over the casting numbers are gone on the MKB.
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From: Southern Cali (Ontario)
metal y pipe holds more heat.. hotter air.. higher IAT's..
I'm currently experimenting with a few intake mods like the one made by Code3.
The C32 have enjoyed a simple filter additon to the C32 Y pipe made by Code3.
It yields .5 lbs of additional boost and makes more power without ECU. However the C32 does not have boost regulating valve which enables it to keep the additional psi.
Our E55's do have a regulating valve (waste blowoff) and in my case with ASP pulley.. I'm not really making more HP but only torque at the lower revs. All the additional PSI is leaked by the DME and thus not making addtional power.
A good intake mod will help with throttle response no doubt.
I'm currently experimenting with a few intake mods like the one made by Code3.
The C32 have enjoyed a simple filter additon to the C32 Y pipe made by Code3.
It yields .5 lbs of additional boost and makes more power without ECU. However the C32 does not have boost regulating valve which enables it to keep the additional psi.
Our E55's do have a regulating valve (waste blowoff) and in my case with ASP pulley.. I'm not really making more HP but only torque at the lower revs. All the additional PSI is leaked by the DME and thus not making addtional power.
A good intake mod will help with throttle response no doubt.
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
as you see below, they swap the TB only for Stage IV, while the intake mod is in since Stage I ... therefore should be the same .. don't think they make 2 different sizes
Cast Numbers gone ... maybe insiders at casting plant
.. can't see what's more behind the Y pipe: a cable and maybe something else?
there should be a serious reason if they took that way: make a special mould for an apparently neglectable Y-pipe !
...need the view from a flow-dynamics expert ...
Last edited by dyno; Jul 12, 2008 at 07:21 PM.
Thread Starter
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
this is exactly the point, ....the result obtained by Code3 by simply opening the intake immediately after the TB is confusing me : but don't remember exactly if Code3 gained more in the mid or top range
If dynamics means something the MKB special design should work for top range ...
Maybe this is also a reason why the CF airbox hardly showed any result ..
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From: Southern Cali (Ontario)
this is exactly the point, ....the result obtained by Code3 by simply opening the intake immediately after the TB is confusing me : but don't remember exactly if Code3 gained more in the mid or top range
If dynamics means something the MKB special design should work for top range ...
Maybe this is also a reason why the CF airbox hardly showed any result ..
If dynamics means something the MKB special design should work for top range ...
Maybe this is also a reason why the CF airbox hardly showed any result ..
One reason the ECU tuning is necessary to control that valve.
The c32 engine only has the magnetic clutch to control PSI. 55k cars have both.. magnetic clutch and waste valve.. which is an over kill.
Can an intake mod yield 10HP with ECU.. no problem if it produces more PSI on the kompressor.
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
.. yes, I know the issue concerning the by-pass valve in 55K engines
and it is the first thing to be fooled when tuning the Ecu
fact is that Ecu tune, including by-pass valve management optimization, yields max 520-530HP ... while the same + a fancy Y-pipe = 540 ,with stock filters!
and it is the first thing to be fooled when tuning the Ecu
fact is that Ecu tune, including by-pass valve management optimization, yields max 520-530HP ... while the same + a fancy Y-pipe = 540 ,with stock filters!
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Porsche ,MB, others
well
if you really want to start messing with throttle bodies,
why not just do what alot of the racing and drag guys do,
the newer trend is to have seperate throttle bodies for either
each cylinder, or at least each bank
Ive seen it on alot of cars lately, and it makes lots of zoom zoom
I saw it on a BMW, and a 350Z and both were pushing 650 hp..
as long as your in there, you may as well, lol do it right
lots of race cars do this as well
if you really want to start messing with throttle bodies,
why not just do what alot of the racing and drag guys do,
the newer trend is to have seperate throttle bodies for either
each cylinder, or at least each bank
Ive seen it on alot of cars lately, and it makes lots of zoom zoom
I saw it on a BMW, and a 350Z and both were pushing 650 hp..
as long as your in there, you may as well, lol do it right
lots of race cars do this as well
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From: Kuwait
CLS55 2006, CLS 63S 2015
As a member here mentioned metal = more heat?
I heard MKB had over heating issues in the UAE, not sure how true this holds to.
Also with this new Y pipe design work with 80mm TB?
because if it does not, then meh
I heard MKB had over heating issues in the UAE, not sure how true this holds to.
Also with this new Y pipe design work with 80mm TB?
because if it does not, then meh
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see here
http://www.scienceofspeed.com/produc...rottle_bodies/
video of V8 toyota with 8 Individual throttle bodies.
http://www.youtube.com/watch?v=Ba8sT...eature=related
and here with Porsche and Ferrari example
http://www.twminduction.com/Throttle...eBody3006.html
of course F1 cars use this as well, but with 18000 rpm you need alot of intake
lol
Newbie
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Porsche ,MB, others
see here
Acura NSX system
http://www.scienceofspeed.com/produc...rottle_bodies/
video of V8 racnig toyota with 8 Individual throttle bodies.(insane sound)
http://www.youtube.com/watch?v=Ba8sT...eature=related
and here with Porsche and Ferrari example
http://www.twminduction.com/Throttle...eBody3006.html
V8 Hemi TB
http://www.twminduction.com/v8_kits/v8_kits-FR.html
of course F1 cars use this as well, but with 18000 rpm you need alot of intake
lol
Last edited by germankars; Jul 13, 2008 at 04:18 AM.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2007
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
but Y-pipe seems the same
Thread Starter
MBWorld Fanatic!
Joined: Apr 2007
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
... also my already old byke has 4 individual bodies (carbs)
but this is easy for NA cars .. in our FI 55k we should need then 8 small individual mini-compressors
personally, I m not interested in going the multi-TB route .. at least till oil will remain at these levels
but, thanks to your arguments I recall, a lot back in time, late sixties when my Father bought the "Super" version of Alfa-Romeo 's Giulia: it was endowed with a special "carburatore Doppio Corpo" or Double-body, as you can see below
maybe this method could have some easier application in FI engines
Last edited by dyno; Jul 13, 2008 at 07:07 AM.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2007
Posts: 1,154
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From: Italy
cls 55 or FIAT Coupe T20v-6speed
Thread Starter
MBWorld Fanatic!
Joined: Apr 2007
Posts: 1,154
Likes: 1
From: Italy
cls 55 or FIAT Coupe T20v-6speed
yes, .. after reasoning a bit more I think now the best of it can be seen in the low-mid range
