E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > BIMMERPOST Universal Forums > General BMW News and Cars Discussion > BMW Valvetronic and TwinPower Turbo Overview



Reply
 
Thread Tools Search this Thread
      06-14-2012, 06:16 PM   #1
Jason
Administrator
 
Jason's Avatar
 
Drives: E90 M3
Join Date: Mar 2005
Location: USA

Posts: 16,361
iTrader: (0)

BMW Valvetronic and TwinPower Turbo Overview

BIMMERPOST NEWS
BMW Valvetronic and TwinPower Turbo Overview
39
COMMENTS

As announced yesterday, BMW's N20, N54, S65, N18 engines have each picked a best engine award at the 2012 International Engine of the Year Awards [Full Award Results].

Here's a brief overview of two of the technologies featured in many of the BMW engines available today - TwinPower Turbo and VALVETRONIC (variable valve lift) technology. Valvetronic was first introduced by BMW on the 316ti compact in 2001, and has since often been coupled with BMW's double-VANOS.

Until 2012, no M model used Valvetronic, but instead continued to feature multiple throttle-bodied designs. The 2012 F10 M5 with its S63Tu engine (more details 1, details 2) is the first M model engine to utilize Valvetronic technology in lieu of the individual throttles found on its equivalents in the BMW X5 M and X6 M. The 2013 BMW 650i Gran Coupe's updated N63Tu engine (good for a +45hp bump over the N63 engine) will also add Valvetronic technology. See the text below for more Valvetronic information.


More Valvetronic Details:
Quote:
It typically works in conjunction with the independent Double VANOS system that continuously varies the timing (on both intake and exhaust camshafts). Valvetronic-equipped engines rely on the amount of valve lift for load control, rather than a butterfly valve in the intake tract. In other words, in normal driving, the "gas pedal" controls the Valvetronic hardware rather than the throttle plate.

Cylinder heads with Valvetronic use an extra set of rocker arms, called intermediate arms (lift scaler), positioned between the valve stem and the camshaft. These intermediate arms are able to pivot on a central point, by means of an extra, electronically actuated camshaft. This movement alone, without any movement of the intake camshaft, can vary the intake valves' lift from fully open, or maximum power, to almost closed, or idle.

Because the intake valves lift now have the ability to move from almost closed to fully open positions, and everywhere in between, the primary means of controlling engine output is transferred from the throttle plate to the intake valvetrain. By shortening the duration of the intake instead of throttling, pumping losses are reduced and fuel economy is improved. By reducing the valve lift, asymmetrically on 4-valve engines, swirl is generated in the cylinder, leading to a better air/fuel mixture. By avoiding a large air reservoir between the throttle and the engine responsiveness can be improved, though it depends on the speed of the electric motor actuating the second camshaft.

However, the throttle plate is not removed, but rather defaults to a fully open position once the engine is running. The throttle will partially close when the engine is first started, to create the initial vacuum needed for certain engine functions, such as emissions control. Once the engine reaches operating speed, a vacuum pump run off the passenger side exhaust camshaft (on the N62 V8, exhaust cam on the N52/K) provides a vacuum source, much as a diesel engine would, and the throttle plate once again goes to the fully open position.

The throttle plate also doubles as an emergency backup, should the Valvetronic system fail. In this case, the engine would enter a "limp home" program, and engine speed would once again be controlled by the throttle plate.

Animations Featuring BMW TwinPower Turbo 6, 4, 3-cylinder Motors



BMW N20 Turbo 4 Cylinder Engine



Jason is offline   United_States
0
Reply With Quote
      06-14-2012, 07:19 PM   #2
SleepyE90
Lieutenant
 
SleepyE90's Avatar
 
Drives: Bavarian
Join Date: Nov 2009
Location: GhettoBird Metrolpolis

Posts: 508
iTrader: (1)

I'm gonna miss the S65
__________________
SleepyE90 is offline   United_States
0
Reply With Quote
      06-14-2012, 07:43 PM   #3
Bimmer Nerd
I | L Photography
 
Bimmer Nerd's Avatar
 
Drives: on the track
Join Date: Jun 2008
Location: Los angeles, ~818~ | San Diego, La Jolla

Posts: 7,500
iTrader: (11)

Since N20 was the replacement for the 6 cylinder engines which went into the base model BMW's (x25/x28/x30). Which model(s) is the 3 cylinder engine going to be going into ? Only cars sold in europe or in the US as well ?
Bimmer Nerd is offline   Georgia
0
Reply With Quote
      06-14-2012, 08:38 PM   #4
Ahmadhosmanbmw335i
Private First Class
 
Drives: 2012 335i sedan
Join Date: Apr 2012
Location: New York united states

Posts: 101
iTrader: (0)

Why do they call it a twin power turbo when it's not a twin turbo
Ahmadhosmanbmw335i is offline   United_States
0
Reply With Quote
      06-14-2012, 08:51 PM   #5
Gnip Gnop
Lieutenant
 
Gnip Gnop's Avatar
 
Drives: 2002 BMW Z3 Coupe
Join Date: Dec 2011
Location: Woodbury, MN

Posts: 439
iTrader: (0)

Quote:
Originally Posted by Ahmadhosmanbmw335i View Post
Why do they call it a twin power turbo when it's not a twin turbo
I think because it is a twin scroll turbo.
__________________
Gnip Gnop is offline  
0
Reply With Quote
      06-14-2012, 09:03 PM   #6
csween86
DSC OFF
 
Drives: 2011 135i N55,6MT,M-PK
Join Date: Feb 2012
Location: Dupont, WA

Posts: 128
iTrader: (0)

Quote:
Originally Posted by Ahmadhosmanbmw335i
Why do they call it a twin power turbo when it's not a twin turbo
It's marketing bro. For example bmw going to the n55 over the n54 in the 35i ranges....think about someone stuck between buying a 135i n55 or n54, "isn't twin turbo better?". The n55 is cheaper, lighter, easier to build, more fuel efficient than the n54, and puts out just about the same power(stock out of the factory that is/exclude is models and the 1m), that's why it took over. I assume BMW thinks people will think one less turbo(the n55) means less performance out of the factory, so they market the name "twin power" to assure people the n55 still has the performance of the old "twin turbo" n54 in the 135i. Their not calling it a twin turbo, but rather suggesting it performs as if it were one. That's just my opinion of it, not trying to sound like a know it all lol, I could be way off. And please people don't start a n54 is better than n55 thing after this comment. Yes the n54 has more tuning potential but the n55 is cheaper,lighter,more fuel efficient and still holds the 300/300 numbers so why would bmw keep dropping the more expensive n54 into the 35i range when they can just put the n55. BMW only cares about the image of their engines out of the factory and not so much about their tuning potential. This saves them money while holding up power figures and their "efficient dynamics" thingy. And they still keep the n54 around for the higher performing models, its a win win for them. And Gnip you also make a valid case.
csween86 is offline   United_States
0
Reply With Quote
      06-14-2012, 11:03 PM   #7
red-sauerkraut
Brigadier General
 
red-sauerkraut's Avatar
 
Drives: x-car/m-car
Join Date: Oct 2007
Location: northern hemisphere

Posts: 3,529
iTrader: (0)

The funny thing is BMW has people so confused, people are advertising their for-sale used N55 powered BMW's as twin turbo in the very ads they are trying to sell them in.



Quote:
Originally Posted by csween86 View Post
It's marketing bro. For example bmw going to the n55 over the n54 in the 35i ranges....think about someone stuck between buying a 135i n55 or n54, "isn't twin turbo better?". The n55 is cheaper, lighter, easier to build, more fuel efficient than the n54, and puts out just about the same power(stock out of the factory that is/exclude is models and the 1m), that's why it took over. I assume BMW thinks people will think one less turbo(the n55) means less performance out of the factory, so they market the name "twin power" to assure people the n55 still has the performance of the old "twin turbo" n54 in the 135i. Their not calling it a twin turbo, but rather suggesting it performs as if it were one. That's just my opinion of it, not trying to sound like a know it all lol, I could be way off. And please people don't start a n54 is better than n55 thing after this comment. Yes the n54 has more tuning potential but the n55 is cheaper,lighter,more fuel efficient and still holds the 300/300 numbers so why would bmw keep dropping the more expensive n54 into the 35i range when they can just put the n55. BMW only cares about the image of their engines out of the factory and not so much about their tuning potential. This saves them money while holding up power figures and their "efficient dynamics" thingy. And they still keep the n54 around for the higher performing models, its a win win for them. And Gnip you also make a valid case.
__________________
Infinite Driving Pleasure
red-sauerkraut is offline  
0
Reply With Quote
      06-14-2012, 11:10 PM   #8
csween86
DSC OFF
 
Drives: 2011 135i N55,6MT,M-PK
Join Date: Feb 2012
Location: Dupont, WA

Posts: 128
iTrader: (0)

Sauerkraut I hear ya on that! lol true story.... when I bought my 135i I wanted the n55 and knew it was a single turbo. At pick up I popped open the hood and saw "twin power turbo." I turned to the salesman, and was like dude I thought I was getting the new single turbo engine! What's this all about? Haha, he explained it to me and I was good to go.
csween86 is offline   United_States
0
Reply With Quote
      06-15-2012, 12:43 AM   #9
Small Yellow
Track Addict
 
Small Yellow's Avatar
 
Drives: 2010 BMW M3 E92 | 2008 Z4M E86
Join Date: Oct 2009
Location: Orange County, California

Posts: 746
iTrader: (0)

Quote:
Until 2012, no M model used Valvetronic, but instead continued to feature multiple throttle-bodied designs.
I thought the S65 has valvetronic.
__________________
BMW ///M3 Coupe
Completed November 16, 2009
Received December 29,2009
BMW //M Coupe
November 4, 2013
Small Yellow is offline   Taiwan
0
Reply With Quote
      06-15-2012, 12:46 AM   #10
AlexanderR
New Member
 
Drives: z3m
Join Date: Jun 2012
Location: Yorba linda

Posts: 11
iTrader: (0)

anyone else notice that in the 2nd video the robot mounts a n20 transverse...
AlexanderR is offline  
0
Reply With Quote
      06-15-2012, 12:50 AM   #11
Jason
Administrator
 
Jason's Avatar
 
Drives: E90 M3
Join Date: Mar 2005
Location: USA

Posts: 16,361
iTrader: (0)

Quote:
Originally Posted by HuangYiChao View Post
I thought the S65 has valvetronic.
Nope, no valvetronic.

Quote:
Originally Posted by AlexanderR View Post
anyone else notice that in the 2nd video the robot mounts a n20 transverse...
FWD application.
__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook
Follow us on Bimmerpost Twitter
Subscribe to Bimmerpost Youtube Channel

Jason is offline   United_States
0
Reply With Quote
      06-15-2012, 12:53 AM   #12
AlexanderR
New Member
 
Drives: z3m
Join Date: Jun 2012
Location: Yorba linda

Posts: 11
iTrader: (0)

Quote:
Originally Posted by Jason View Post
Nope, no valvetronic.



FWD application.
I don't believe this one bit.
AlexanderR is offline  
0
Reply With Quote
      06-15-2012, 12:57 AM   #13
wibbles
Private First Class
 
Drives: 135i 6MT
Join Date: May 2012
Location: UK

Posts: 125
iTrader: (0)

Valvetronic is all well and good until BMW detune your car without telling you when it's serviced.
__________________
Current: 2011 F20 120d SE
Previous:
2010 Alpine White N55 135i 6MT, 2009 LMB LCI N54 135i - Cobb tuned!, 2010 F10 530d SE, 1986 E30 318i
1981 E21 320i Auto
wibbles is offline   United Kingdom
0
Reply With Quote
      06-15-2012, 02:02 AM   #14
csween86
DSC OFF
 
Drives: 2011 135i N55,6MT,M-PK
Join Date: Feb 2012
Location: Dupont, WA

Posts: 128
iTrader: (0)

Quote:
Originally Posted by wibbles
Valvetronic is all well and good until BMW detune your car without telling you when it's serviced.
I am a big skeptic of this issue my friend. I made a post on this issue at one point. I brought my 135i in for it's first service a while back, and the service rep told me they had to do an update to the DME but never gave me a straight answer why.... I will admit afterwards my car did not feel less powerful in the long run, but my throttle response became weaker on the low end and my exhaust note completely changed... It used to growl (burble), especially when the revs would fall(decompression) ... I might be crazy but to this day I'm convinced that BMW might have accidentally added the ppk to some factory cars and then realized it, and inconspicuously removed it.....
csween86 is offline   United_States
0
Reply With Quote
      06-15-2012, 04:52 AM   #15
red-sauerkraut
Brigadier General
 
red-sauerkraut's Avatar
 
Drives: x-car/m-car
Join Date: Oct 2007
Location: northern hemisphere

Posts: 3,529
iTrader: (0)

Wow, that is something to ponder over now isn't it.

Quote:
Originally Posted by csween86 View Post
I am a big skeptic of this issue my friend. I made a post on this issue at one point. I brought my 135i in for it's first service a while back, and the service rep told me they had to do an update to the DME but never gave me a straight answer why.... I will admit afterwards my car did not feel less powerful in the long run, but my throttle response became weaker on the low end and my exhaust note completely changed... It used to growl (burble), especially when the revs would fall(decompression) ... I might be crazy but to this day I'm convinced that BMW might have accidentally added the ppk to some factory cars and then realized it, and inconspicuously removed it.....
__________________
Infinite Driving Pleasure
red-sauerkraut is offline  
0
Reply With Quote
      06-15-2012, 04:53 AM   #16
red-sauerkraut
Brigadier General
 
red-sauerkraut's Avatar
 
Drives: x-car/m-car
Join Date: Oct 2007
Location: northern hemisphere

Posts: 3,529
iTrader: (0)

Good call... Nice Avatar BTW


Quote:
Originally Posted by Jason View Post
Nope, no valvetronic.



FWD application.
__________________
Infinite Driving Pleasure
red-sauerkraut is offline  
0
Reply With Quote
      06-15-2012, 06:22 AM   #17
NYAWE60
First Lieutenant
 
Drives: 2009 535i Sport
Join Date: Jan 2011
Location: NYC

Posts: 367
iTrader: (0)

Quote:
Originally Posted by SleepyE90 View Post
I'm gonna miss the S65
You and me both, I'll also miss the S85 big time
NYAWE60 is offline   United_States
0
Reply With Quote
      06-15-2012, 08:59 AM   #18
Rich@GTBPerformance
BimmerPost Supporting Vendor

 
Rich@GTBPerformance's Avatar
 
Drives: 2011 135i
Join Date: Dec 2010
Location: NJ, Right outside of NYC

Posts: 4,158
iTrader: (19)

Guys

No need to miss those engines, just keep your E9X M3's and your E60 M5's in the garage and stop upgrading so quickly!
__________________

Your Home For Premium BMW Aftermarket Parts
www.gtbperformance.com | sales@gtbperformance.com | Facebook | 973 429 2839
Rich@GTBPerformance is offline  
0
Reply With Quote
      06-15-2012, 10:44 AM   #19
mkoesel
Moderator
 
Drives: IB/PS M-DCT E93 M3
Join Date: Jun 2006
Location: Canton, MI

Posts: 13,485
iTrader: (1)

Quote:
Originally Posted by Bimmer Nerd View Post
Since N20 was the replacement for the 6 cylinder engines which went into the base model BMW's (x25/x28/x30). Which model(s) is the 3 cylinder engine going to be going into ? Only cars sold in europe or in the US as well ?
The upcoming TwinPower 3 cylinder will probably replace the 1.6L N13 and N18 engines. It will be similar in displacement (1.5L rather than 1.6L), and is rumored to be targeting up to 200hp or even more (such as in the i8).

It is not likely we will see 3 cylinder powered BMW's in the US (other than from the "i" brand), just as we don't get N13 powered vehicles today (those with model designations in the teens). We will get 3 cylinder powered Mini's of course.
__________________
2008 Interlagos Blue E93 M3 - M-DCT
2011 Salsa Red Jetta TDI Sportwagen - DSG
mkoesel is online now   United_States
0
Reply With Quote
      06-15-2012, 10:54 AM   #20
mkoesel
Moderator
 
Drives: IB/PS M-DCT E93 M3
Join Date: Jun 2006
Location: Canton, MI

Posts: 13,485
iTrader: (1)

Quote:
Originally Posted by AlexanderR View Post
I don't believe this one bit.
What don't you believe?

That the S65 does not employ Valvetronic throttle technology is a well known fact.

Regarding FWD applications for the N20, that has not been announced but is all but certain at this point. We know that FWD BMW's are coming in the 1 Series product range, and the N20 will naturally find its way into these models (though it is possible that they will give the transverse version of the engine a different name).
__________________
2008 Interlagos Blue E93 M3 - M-DCT
2011 Salsa Red Jetta TDI Sportwagen - DSG

Last edited by mkoesel; 06-19-2012 at 12:59 PM. Reason: Removed incorrect information.
mkoesel is online now   United_States
0
Reply With Quote
      06-16-2012, 01:34 AM   #21
scanepa
Private First Class
 
scanepa's Avatar
 
Drives: 2009 BMW 335i Coupe
Join Date: Nov 2011
Location: Dallas, TX

Posts: 119
iTrader: (0)

Quote:
Originally Posted by Bimmer Nerd View Post
Since N20 was the replacement for the 6 cylinder engines which went into the base model BMW's (x25/x28/x30). Which model(s) is the 3 cylinder engine going to be going into ? Only cars sold in europe or in the US as well ?
It's for The Mini
scanepa is offline  
0
Reply With Quote
      06-16-2012, 01:36 AM   #22
scanepa
Private First Class
 
scanepa's Avatar
 
Drives: 2009 BMW 335i Coupe
Join Date: Nov 2011
Location: Dallas, TX

Posts: 119
iTrader: (0)

Quote:
Originally Posted by csween86 View Post
It's marketing bro. For example bmw going to the n55 over the n54 in the 35i ranges....think about someone stuck between buying a 135i n55 or n54, "isn't twin turbo better?". The n55 is cheaper, lighter, easier to build, more fuel efficient than the n54, and puts out just about the same power(stock out of the factory that is/exclude is models and the 1m), that's why it took over. I assume BMW thinks people will think one less turbo(the n55) means less performance out of the factory, so they market the name "twin power" to assure people the n55 still has the performance of the old "twin turbo" n54 in the 135i. Their not calling it a twin turbo, but rather suggesting it performs as if it were one. That's just my opinion of it, not trying to sound like a know it all lol, I could be way off. And please people don't start a n54 is better than n55 thing after this comment. Yes the n54 has more tuning potential but the n55 is cheaper,lighter,more fuel efficient and still holds the 300/300 numbers so why would bmw keep dropping the more expensive n54 into the 35i range when they can just put the n55. BMW only cares about the image of their engines out of the factory and not so much about their tuning potential. This saves them money while holding up power figures and their "efficient dynamics" thingy. And they still keep the n54 around for the higher performing models, its a win win for them. And Gnip you also make a valid case.
LOL, what a bunch of BS bro. They call it twin power because it's a twin scroll single turbo...
scanepa is offline  
0
Reply With Quote
Reply

Bookmarks

Tags
bmw engines, bmw m5 s63tu, bmw n18, bmw n20, bmw n54, bmw n63tu, bmw n63tu engine, bmw s63tu, bmw s63tu engine, bmw twinpower turbo, bmw twinpower turbo engine, bmw twinpower turbo technology, bmw valvetronic, bmw valvetronic technology, bmw vanos, m5 s63tu engine, n63tu engine, s63tu engine, s63tu m5, s63tu m5 engine, valvetronic

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 01:56 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST