Why no twin charge?
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Super Member
Joined: Jun 2011
Posts: 601
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From: I liva at da land down under
Porsche 2004 911
Why no twin charge?
http://www.autospeed.com/cms/article.html?&A=1447
As you would know his madman man engaged an aussie to belt up a 32 approx 15 years ago, however these days variable turbos now boost in at 1100 rpm.
Rudy, Sunil dropped w211 55 engines in
, Robort pumped up a 32 with 55 blower and Pansu created a work of art 
. Why no twin charge> rear mount turbos and softwre to kill blower an releaes the rurbos.? http://www.autospeed.com/cms/article.html?&A=1447
Why no takers?
As you would know his madman man engaged an aussie to belt up a 32 approx 15 years ago, however these days variable turbos now boost in at 1100 rpm.
Rudy, Sunil dropped w211 55 engines in
, Robort pumped up a 32 with 55 blower and Pansu created a work of art . Why no twin charge> rear mount turbos and softwre to kill blower an releaes the rurbos.? http://www.autospeed.com/cms/article.html?&A=1447Why no takers?
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From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
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From: Downingtown, PA
none... for now
Because it's done in a few factory cars for fuel economy and perfect "feeling" curves. Beyond that it's redundant and overkill.
The reality is, any V6 or V8 only needs 1 or the other. Turbos kicking in at 1500? Who cares? 5% of racing is done there. In drag racing, you'll never be below 2000 rpm's so this huge, instant umph the latest batch of turbo 4's give you is a waste, because they fall flat at 5500rpms. That's a DOHC 2.0 in 2015 that can't pull to 6500!!! Now, for the generic consumer, it makes the car feel faster day to day, so in that regard, they succeeded.
But with recent twin scroll turbo's and TVS superchargers, they provide power across the board. You don't need both.
So really, a slightly larger TVS eaton is all the C32 needs, and good luck on that. Of course, Eaton already has a TVS for V6 motors strapped to the new S4/S5/A6, so maybe if enough of you C/SLK32 guys petition, you might be able to convince Eaton of a market. They are internally bypassed to save gas, no electromagnetic clutch. Just IMO.
The reality is, any V6 or V8 only needs 1 or the other. Turbos kicking in at 1500? Who cares? 5% of racing is done there. In drag racing, you'll never be below 2000 rpm's so this huge, instant umph the latest batch of turbo 4's give you is a waste, because they fall flat at 5500rpms. That's a DOHC 2.0 in 2015 that can't pull to 6500!!! Now, for the generic consumer, it makes the car feel faster day to day, so in that regard, they succeeded.
But with recent twin scroll turbo's and TVS superchargers, they provide power across the board. You don't need both.
So really, a slightly larger TVS eaton is all the C32 needs, and good luck on that. Of course, Eaton already has a TVS for V6 motors strapped to the new S4/S5/A6, so maybe if enough of you C/SLK32 guys petition, you might be able to convince Eaton of a market. They are internally bypassed to save gas, no electromagnetic clutch. Just IMO.
Thread Starter
Super Member
Joined: Jun 2011
Posts: 601
Likes: 4
From: I liva at da land down under
Porsche 2004 911
Thread Starter
Super Member
Joined: Jun 2011
Posts: 601
Likes: 4
From: I liva at da land down under
Porsche 2004 911
Because it's done in a few factory cars for fuel economy and perfect "feeling" curves. Beyond that it's redundant and overkill.
The reality is, any V6 or V8 only needs 1 or the other. Turbos kicking in at 1500? Who cares? 5% of racing is done there. In drag racing, you'll never be below 2000 rpm's so this huge, instant umph the latest batch of turbo 4's give you is a waste, because they fall flat at 5500rpms. That's a DOHC 2.0 in 2015 that can't pull to 6500!!! Now, for the generic consumer, it makes the car feel faster day to day, so in that regard, they succeeded.
But with recent twin scroll turbo's and TVS superchargers, they provide power across the board. You don't need both.
So really, a slightly larger TVS eaton is all the C32 needs, and good luck on that. Of course, Eaton already has a TVS for V6 motors strapped to the new S4/S5/A6, so maybe if enough of you C/SLK32 guys petition, you might be able to convince Eaton of a market. They are internally bypassed to save gas, no electromagnetic clutch. Just IMO.
The reality is, any V6 or V8 only needs 1 or the other. Turbos kicking in at 1500? Who cares? 5% of racing is done there. In drag racing, you'll never be below 2000 rpm's so this huge, instant umph the latest batch of turbo 4's give you is a waste, because they fall flat at 5500rpms. That's a DOHC 2.0 in 2015 that can't pull to 6500!!! Now, for the generic consumer, it makes the car feel faster day to day, so in that regard, they succeeded.
But with recent twin scroll turbo's and TVS superchargers, they provide power across the board. You don't need both.
So really, a slightly larger TVS eaton is all the C32 needs, and good luck on that. Of course, Eaton already has a TVS for V6 motors strapped to the new S4/S5/A6, so maybe if enough of you C/SLK32 guys petition, you might be able to convince Eaton of a market. They are internally bypassed to save gas, no electromagnetic clutch. Just IMO.
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Joined: Aug 2011
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From: New Zealand
Twin charging is expensive and complicated. It isn't too bad for a economy point of view in a mass production car, once the R&D is done you can use it in thousands of engines. Otherwise it is not an easy task as a project and there are little gains to make it worth it.
As pointed out it isn't really necessary these days and the larger the engine displacement the less need for it. Even a centrifugal supercharger (very little low rpm torque) is going to be perfectly fine on most 5L + engines.
Upgrade? what are you looking at?
As pointed out it isn't really necessary these days and the larger the engine displacement the less need for it. Even a centrifugal supercharger (very little low rpm torque) is going to be perfectly fine on most 5L + engines.
Upgrade? what are you looking at?
Thread Starter
Super Member
Joined: Jun 2011
Posts: 601
Likes: 4
From: I liva at da land down under
Porsche 2004 911
Twin charging is expensive and complicated. It isn't too bad for a economy point of view in a mass production car, once the R&D is done you can use it in thousands of engines. Otherwise it is not an easy task as a project and there are little gains to make it worth it.
As pointed out it isn't really necessary these days and the larger the engine displacement the less need for it. Even a centrifugal supercharger (very little low rpm torque) is going to be perfectly fine on most 5L + engines.
Upgrade? what are you looking at?
As pointed out it isn't really necessary these days and the larger the engine displacement the less need for it. Even a centrifugal supercharger (very little low rpm torque) is going to be perfectly fine on most 5L + engines.
Upgrade? what are you looking at?
I just picked up 3 weeks ago a 2014 b200 cdi with all the extra's, vision,distronic, comfort,sports blah blah (merc demo car) for the lady boss. (ditched CRV) so currently hip pocket is hurt. The 32 is a keeper as I have spent more than it could every be worth and it makes me smile too much. What you have is a contender (clk55) but heart set on an slk55. The 63 is just always out of reach.
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MBWorld Fanatic!
Joined: Aug 2011
Posts: 3,428
Likes: 288
From: New Zealand
The SLK55 is a great car but they cost so much more than they should here- hopefully more reasonable prices over there. They are usually about double the cost of a similar year/mileage E55's here.
I test drove one, I liked it a lot (def needs LSD) but it could only be a second car with the amount of room inside.... at which point I decided a manual transmission would be better suited for a sports car.... at which point I looked at available 911's, boxsters and caymans.... and immediately decided I can't afford a second anything.
I test drove one, I liked it a lot (def needs LSD) but it could only be a second car with the amount of room inside.... at which point I decided a manual transmission would be better suited for a sports car.... at which point I looked at available 911's, boxsters and caymans.... and immediately decided I can't afford a second anything.
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Thread Starter
Super Member
Joined: Jun 2011
Posts: 601
Likes: 4
From: I liva at da land down under
Porsche 2004 911
The SLK55 is a great car but they cost so much more than they should here- hopefully more reasonable prices over there. They are usually about double the cost of a similar year/mileage E55's here.
I test drove one, I liked it a lot (def needs LSD) but it could only be a second car with the amount of room inside.... at which point I decided a manual transmission would be better suited for a sports car.... at which point I looked at available 911's, boxsters and caymans.... and immediately decided I can't afford a second anything.
I test drove one, I liked it a lot (def needs LSD) but it could only be a second car with the amount of room inside.... at which point I decided a manual transmission would be better suited for a sports car.... at which point I looked at available 911's, boxsters and caymans.... and immediately decided I can't afford a second anything.
What was my thread about? Sorry all.
