New 2009 2010 BMW Z4 - ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   New 2009 2010 BMW Z4 - ZPOST > BMW Z4 Forum (E89) > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications

Post Reply
 
Thread Tools Search this Thread
      05-24-2010, 11:26 AM   #45
Memphis1
Lieutenant Colonel
Memphis1's Avatar
United_States
64
Rep
1,843
Posts

Drives: Z4 SDrive 35i
Join Date: Oct 2009
Location: CT

iTrader: (0)

Quote:
Originally Posted by Oh Captain My Captain View Post

Although I did a double-take with the thumbs-up pose; it appeared that your wife had a freakishly-large left hand.
__________________
Appreciate 0
      05-24-2010, 11:27 AM   #46
Memphis1
Lieutenant Colonel
Memphis1's Avatar
United_States
64
Rep
1,843
Posts

Drives: Z4 SDrive 35i
Join Date: Oct 2009
Location: CT

iTrader: (0)

Quote:
Originally Posted by ramiles View Post
Curious what are the rated limits of the Dual Clutch Transmission? What is the margin of strength before it becomes an issues (torque and tires). Am guessing it is a fairly new unit - maybe its fairly robust. Have read about issues with the HPFP, haven't heard any items with the tranny.


i've provided info on this before...
__________________
Appreciate 0
      05-24-2010, 11:29 AM   #47
Memphis1
Lieutenant Colonel
Memphis1's Avatar
United_States
64
Rep
1,843
Posts

Drives: Z4 SDrive 35i
Join Date: Oct 2009
Location: CT

iTrader: (0)

Quote:
Originally Posted by alpha325i View Post
Are you sure about the negative statement you made about the BMS dual cone intake? They have a dyno result

http://www.burgertuning.com/images/filterdyno.jpg
Godius had them on his and he said he took them off because it felt as if the engine was being running out of air... (not his exact words)
__________________
Appreciate 0
      05-25-2010, 07:47 AM   #48
bulldog x6
Major General
bulldog x6's Avatar
103
Rep
5,045
Posts

Drives: '16 MB GLE
Join Date: Oct 2008
Location: probably work

iTrader: (28)

Quote:
Originally Posted by VintageBMW View Post
I am sure. Once the engine heats up, nice and toasty at about 250 degrees F, the dual cone results will suffer greatly. I have no doubt that while the motor is cooler that the dual cones will produce more power because they will suck in more air. So, make sure you race people before the car has warmed up to its normal operating temp. and let her rip. They do sound good with all of that air being sucked in to the cones.
you realize that as the car is moving, cold fresh air is inducted into the engine bay, which is what the dual cones "suck" in. Your statement is true for a car that is idling only. Also, recommending people "race" before the car reaches normal operating temp is a recipe for disaster, more so if you are running a tune.
Appreciate 0
      05-25-2010, 08:01 AM   #49
mrboon
Lieutenant
mrboon's Avatar
No_Country
52
Rep
561
Posts

Drives: Speeeed
Join Date: Oct 2009
Location: ***

iTrader: (0)

Quote:
Originally Posted by Memphis1 View Post
Godius had them on his and he said he took them off because it felt as if the engine was being running out of air... (not his exact words)
Not really running out of air i think i said, i think the performance was slower, and i didnt like the sound the engine made.
Appreciate 0
      05-25-2010, 08:02 AM   #50
Vintage
Colonel
Vintage's Avatar
United_States
219
Rep
2,508
Posts

Drives: 2017 M2 2014 535xd 2016 GT4
Join Date: Aug 2009
Location: Austin, Texas

iTrader: (0)

good point, BUT why do modern air intake systems induct air from the front exterior of the car instead of just sucking in "fresh air" from the engine bay?
Appreciate 0
      05-25-2010, 09:28 AM   #51
dwagner00
Private
2
Rep
71
Posts

Drives: Z4 35is
Join Date: Apr 2010
Location: Seattle

iTrader: (0)

Quote:
Originally Posted by VintageBMW View Post
good point, BUT why do modern air intake systems induct air from the front exterior of the car instead of just sucking in "fresh air" from the engine bay?
They're called "Cold Air Intake" for a reason

Colder air is higher density, so more O2 for a given volume.
Appreciate 0
      05-25-2010, 09:52 AM   #52
Vintage
Colonel
Vintage's Avatar
United_States
219
Rep
2,508
Posts

Drives: 2017 M2 2014 535xd 2016 GT4
Join Date: Aug 2009
Location: Austin, Texas

iTrader: (0)

Quote:
Originally Posted by dwagner00 View Post
They're called "Cold Air Intake" for a reason

Colder air is higher density, so more O2 for a given volume.
agreed, I was being a bit of a smarta-- in my last post. yes, colder air is much better and dual cones are bad, but sound really good when you open the throttle
Appreciate 0
      07-20-2010, 12:23 AM   #53
Projekt35i
Private First Class
4
Rep
154
Posts

Drives: Z4
Join Date: Jul 2010
Location: Canada

iTrader: (2)

good work!
Appreciate 0
      07-30-2010, 11:20 AM   #54
Banton
Enlisted Member
Banton's Avatar
United_States
0
Rep
44
Posts

Drives: ordered: '11 35is loaded
Join Date: Jul 2010
Location: Bainbridge Island, WA & Brentwood, CA

iTrader: (0)

Vintage-

I have enjoyed the posts on your upcoming mods. Look forward to seeing the results!

As a noob whom is planning to purchase soon, I would like to ask a couple of questions that might provide answers for some of us that are just learning about the various Z4 models.

Since you have a '10 35i, and the 35is was not available then, would you get the 35is if you were buying today? What is the difference between the 2 cars, besides, but relative to, the hp? Example: If I got a 35i, what would I sacrifice if I loaded it up with the M package, premium, Nav, etc. (other than a $5K savings), over the 35is?

If I got the 35i and did the same mods as you have done, would I be sitting with a better, faster car over the 35is?

Your knowledge of these cars is pretty spectacular and I would appreciate your thoughts rather than be sorry later that I took the wrong path.

Thanks in advance

Bill
Appreciate 0
      08-01-2010, 08:41 PM   #55
ttuner
First Lieutenant
ttuner's Avatar
46
Rep
380
Posts

Drives: z4
Join Date: Jul 2010
Location: phx

iTrader: (0)

wheres the pics at?
Appreciate 0
      08-01-2010, 11:00 PM   #56
Vintage
Colonel
Vintage's Avatar
United_States
219
Rep
2,508
Posts

Drives: 2017 M2 2014 535xd 2016 GT4
Join Date: Aug 2009
Location: Austin, Texas

iTrader: (0)

Quote:
Originally Posted by Banton View Post
Vintage-
Since you have a '10 35i, and the 35is was not available then, would you get the 35is if you were buying today? What is the difference between the 2 cars, besides, but relative to, the hp? Example: If I got a 35i, what would I sacrifice if I loaded it up with the M package, premium, Nav, etc. (other than a $5K savings), over the 35is?

If I got the 35i and did the same mods as you have done, would I be sitting with a better, faster car over the 35is?

Your knowledge of these cars is pretty spectacular and I would appreciate your thoughts rather than be sorry later that I took the wrong path.

Thanks in advance

Bill
If the 35is was available I would have probably bought it b/c I tend to buy the most powerful model even though it is not always the best. However, my wife would have made the final call as it is her car - I really like the black sapphire with walnut interior. Truly, I love the 35i but the 30i with the NA engine is also a true joy.

As for performance, our 35i will smoke a stock 35is. Keep in mind that it is truly pushing around 400hp and 400lb/ft. of torque with the ESS Stage II, FMIC, Eisenmann exhaust, charge pipe, etc. I drive around in sport shift mode or manual plus Sport setting all of the time - it screams and the power is ridiculous. That being said, our mods cost around $5k+; for that price you could buy the 35is and skip the mods if you wanted. In addition, with the 35is and no mods there will be no warranty issues at the dealer if there is a problem.

I really think there are two paths: 1) buy the 30i stripped down with manual = light, very quick, and really fun to shift without all the expensive stuff or 2) a loaded DCT 35i or 35is. Then, mod away if you want.
Appreciate 0
      08-02-2010, 12:12 AM   #57
Banton
Enlisted Member
Banton's Avatar
United_States
0
Rep
44
Posts

Drives: ordered: '11 35is loaded
Join Date: Jul 2010
Location: Bainbridge Island, WA & Brentwood, CA

iTrader: (0)

Thanks, Vintage. I guess that my quandary is: what do I get on the stock 35is that is different than what I could get on the 35i? Bigger engine, different exhaust, but is the suspension or the handling any different? Better, or just different?

Thanks
__________________
2011 Z4 35is Melbourne Red over Extended Walnut, 326M wheels, Premium Sound, Premium Package, Nav, Comfort Access and Heated Seats
Appreciate 0
      08-02-2010, 01:05 AM   #58
Dr Stig 2
Criminally Insane
Dr Stig 2's Avatar
Australia
38
Rep
1,464
Posts

Drives: Like a Demon!
Join Date: Jun 2010
Location: Brisbane, Australia

iTrader: (0)

Garage List
The exhaust is louder, the dct and steering programming are more aggressive.
PLus theyy give you a thicker tiller, but you lose the nice stainless trim on it and get a plastic ///M badge as compensation...
__________________

Dr Stig
2010 Z4 35is
2011 X3 30d M Sport
Australia
Appreciate 0
      08-02-2010, 03:22 AM   #59
BLKZ
Enlisted Member
Australia
1
Rep
41
Posts

Drives: Z4 sDrive35i - sapphire black
Join Date: Apr 2010
Location: Australia

iTrader: (0)

Quote:
Originally Posted by Dr Stig 2 View Post
PLus theyy give you a thicker tiller, but you lose the nice stainless trim on it and get a plastic ///M badge as compensation...
You've described the steering wheel on my 35i, right down to the plastic ///M badge. I was surprised when it arrived with this wheel fitted, as I wasn't expacting it, but I certainly didn't complain. I prefer the thicker rim and lack of brushed metal on the M wheel over the standard tiller.
Appreciate 0
      08-02-2010, 03:25 AM   #60
Dr Stig 2
Criminally Insane
Dr Stig 2's Avatar
Australia
38
Rep
1,464
Posts

Drives: Like a Demon!
Join Date: Jun 2010
Location: Brisbane, Australia

iTrader: (0)

Garage List
Quote:
Originally Posted by BLKZ View Post
You've described the steering wheel on my 35i, right down to the plastic ///M badge. I was surprised when it arrived with this wheel fitted, as I wasn't expacting it, but I certainly didn't complain. I prefer the thicker rim and lack of brushed metal on the M wheel over the standard tiller.
Bit like Monopoly then. BMW error in your favour...
__________________

Dr Stig
2010 Z4 35is
2011 X3 30d M Sport
Australia
Appreciate 0
      08-02-2010, 04:31 AM   #61
Alext
Banned
No_Country
74
Rep
2,044
Posts

Drives: B M W
Join Date: Apr 2008
Location: Everest

iTrader: (2)

The 35is basically comes with the M Sport package which includes more aggressive front and rear bumpers and the M Adaptive suspension as the most integral components. Interior-wise there are the aesthetic enhancements - M steering wheel, trim, foot rest & side sill trim etc.

Then as Dr Stig mentioned the DCT and steering programming are different. Plus a sportier exhaust.

Also you get a fatter front anti-roll bar. I recently watched a you tube vid of a 35is being driven around Imola race track shot from the interior. Body-roll looked minimal - a lot less than my 135i for sure.

And of course the extra power. As I have mentioned previously a tune will become available for the 35is eventually. A JB3 v2.0 will work for example, just needs some custom settings.
Appreciate 0
      08-02-2010, 05:18 PM   #62
richard in NC
Lieutenant Colonel
United_States
151
Rep
1,564
Posts

Drives: 2009 Z4 35i
Join Date: Jul 2009
Location: Charlotte, NC

iTrader: (0)

EDIT: Wrong post....
__________________
2018 M550i: Med Blue, Mocha : Exec Pkg, Driver Asst & Plus, DHP, 759s, More...
2016 X4 M40i, Long Beach Blue/Ivory-Black: Cold Weather, Technology, 20s w/PSS, Cameras, More...
Gone '15 M5, '13 X3 35i, '12 335is, '11 X5 50i, '09 Z4 35i, '08 550i, 06 X3, 06 650i, '02 M5, '99 540i
Appreciate 0
Post Reply

Bookmarks

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


All times are GMT -5. The time now is 07:37 PM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, 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