ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Cosmetics Modification (Exterior/Interior) Discussions
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      09-03-2017, 03:34 PM   #23
Beedub
Major General
United Kingdom
423
Rep
5,327
Posts

Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

iTrader: (0)

anyone fitted one of these to a roadster yet??

Not sure if it will work as well visually ......
__________________
Z4MR VT2 - Clubsport build.
Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com
Appreciate 0
      10-25-2017, 12:00 PM   #24
The HACK
Midlife Crises Racing Silent but Deadly Class
The HACK's Avatar
1817
Rep
5,337
Posts

Drives: 2006 MZ4C, 2021 Tesla Model 3
Join Date: Oct 2007
Location: Welcome to Jamaica have a nice day

iTrader: (1)

From June to now...It's been 4 months? I'm averaging probably 1.5 scrapes per months. Never the splitter, always the diffuser. It sits MUCH lower than OEM for sure, and even when I'm being careful, pulling out of any sort of inclined driveway require a ton of patience.

The diffuser is a very sturdy piece, and despite the numerous scrapes the bottom of the fins don't seem to have taken on much damage. Some of the powder coat has been scrapped off, so I just take a permanent marker to it and it's good for a short while. But due to the age of the car (11 years) I suspect the plastic carrier piece is now turning brittle. Every time the diffuser scrapes on a driveway it acts like a slow speed impact on the bumper. I think one or more of the tabs on the carrier is busted.



Part number 6 in the diagram. This is what the tabs look like, this is the underside of the trim backet:



The little tabs on the bottom right hand side "under" a hole for a screw/bolt. There are six of these tabs total, and I suspect more than a few has broken off due to my occasional scraping of the diffuser. Eventually I will have to replace all three of the bumper carriers:

51127158875 Center carrier
51127165177 Left carrier
51127165178 Right carrier

For now, I drilled 3 small holes on the carrier through to the bumper to allow for 3 expanding rivets to hold it in place. Excuse the dirty car, waiting for the Skyer spoiler to be installed before I do another thorough cleaning.
Attached Images
 
__________________
Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
Appreciate 0
      10-25-2017, 01:08 PM   #25
inTgr8r
Lieutenant General
inTgr8r's Avatar
Canada
2422
Rep
11,665
Posts

Drives: M2 Comp
Join Date: Mar 2006
Location: Toronto

iTrader: (10)

FWIW....
There is one corner at our local track (Mosport) that has a huge compression just before turn in and I was scraping big time there.

The two outside fins are deeper than the main diffuser fins and they were the ones taking the abuse.
I trimmed them to the same depth as the others and now I don't scrape at all.
__________________
'21 M2C Hockenheim Silver
'18 718 Cayman S Lava Orange (sold)
'13 E92 M3 Santorini Blue (sold)
'07 Z4 M Coupe Alpine White (sold)
Appreciate 0
      10-25-2017, 02:16 PM   #26
The HACK
Midlife Crises Racing Silent but Deadly Class
The HACK's Avatar
1817
Rep
5,337
Posts

Drives: 2006 MZ4C, 2021 Tesla Model 3
Join Date: Oct 2007
Location: Welcome to Jamaica have a nice day

iTrader: (1)

Quote:
Originally Posted by inTgr8r View Post
FWIW....
There is one corner at our local track (Mosport) that has a huge compression just before turn in and I was scraping big time there.

The two outside fins are deeper than the main diffuser fins and they were the ones taking the abuse.
I trimmed them to the same depth as the others and now I don't scrape at all.
That's good to know, I'll probably do the same over winter to prevent it.
__________________
Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
Appreciate 0
      03-26-2018, 01:22 PM   #27
The HACK
Midlife Crises Racing Silent but Deadly Class
The HACK's Avatar
1817
Rep
5,337
Posts

Drives: 2006 MZ4C, 2021 Tesla Model 3
Join Date: Oct 2007
Location: Welcome to Jamaica have a nice day

iTrader: (1)

So...First track event after all the work I did last winter, and have some INTERESTING results.

Originally I wasn't expecting a world of difference, but was shocked to find that my average terminal speed going up Magic Mountain just before the braking zone is up a whopping 5 mph.

For those of you not familiar with Buttonwillow, Magic Mountain is a hill just after a long high speed sweeper followed by 1 additional "sweep" through (a right at what we called "Riverside", the first sweeper, then another sweeper to the left). Very high speed, averages were at least 80 at entry and 90+ by the exit.

5 whopping MPH can't all be attributed to aero alone, because the suspension was swapped out. But the spring rates were comparable, but the dampers are significantly upgraded (2 way with remote from KW Clubsports compared to the GC damper adjustable Konis).

And to be honest I was pussy-footing it around because I wanted to make sure I'm familiar and comfortable with the setup, as indicative of the lap times still about 4 seconds off of my PB in this particular config at BW (1CW). But despite all the factors working against it the one place where AERO would have the most effect on the track, the two high speed sweepers, it appears the splitter, diffuser, and aero all worked to some extent.

The highs were in the mid-low 50s during my best run, so I'm not sure if the tires got up to its potential as max speed through some of the slower turns were below my previous track days.

Still not definitive proof that the FancyWide diffuser adds performance, but numbers don't lie. At least in conjunction with a splitter it made a difference.
__________________
Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.

Last edited by The HACK; 03-26-2018 at 02:29 PM..
Appreciate 0
      04-16-2018, 09:39 PM   #28
J-Cole
New Member
United_States
87
Rep
10
Posts

Drives: 2006 Imola Z4M
Join Date: Apr 2018
Location: Lehigh Valley PA

iTrader: (0)

So I recently purchased a Fancy Wide diffuser for my coupe with stock mufflers. I already had plans to shorten the mounting point bringing the whole diffuser underneath the car more, but after reading The Hack's write up about the diffuser not fitting with stock mufflers I knew I'd have to do more cutting and fitting than originally planned. But here is what i came up with.
2018-04-15_10-41-04 by Josh Cole, on Flickr

2018-04-15_10-41-31 by Josh Cole, on Flickr

2018-04-15_10-41-44 by Josh Cole, on Flickr

cut to fit around the muffler, also marked where to drill the new mounting wholes. I decided that 3 inches shorter was a good placement.

2018-04-15_10-42-02 by Josh Cole, on Flickr

We used this bracket for an extra mounting point. Drilled new holes and used rivnuts to fasten.

2018-04-15_10-42-49 by Josh Cole, on Flickr

cleaned up the cuts to fit around the muffler better.
2018-04-15_10-43-29 by Josh Cole, on Flickr

on to the "fins"
so since we shortened the whole diffuser we had to shorten some of the fins for muffler clearance.

2018-04-15_10-43-39 by Josh Cole, on Flickr

we just traced the curve from the other side so that we would have the same angle.

2018-04-15_10-43-52 by Josh Cole, on Flickr

2018-04-15_10-43-59 by Josh Cole, on Flickr

you only see the back of this piece so i wasn't too worried about it being this small. At this stage, the functionality is pretty much out the window. But we are primarily going for looks here.

as you can see in this picture the piece under the exhaust tips stick out a tad. We later trimmed that down so it was flush (not pictured)

2018-04-15_10-44-08 by Josh Cole, on Flickr

2018-04-15_10-44-31 by Josh Cole, on Flickr

2018-04-15_10-45-05 by Josh Cole, on Flickr

So at this point i stepped out for lunch to feed my "fabricator" aka my brother. I wanted to extend the piece under the exhaust and then shorten the outside fin to clear the muffler. But further thought brought us too bending it, because my idea was to keep the mufflers hidden.

2018-04-15_10-45-15 by Josh Cole, on Flickr

The outside piece covers the bend and the extra cut. So it all kind of blends and is not very noticeable

2018-04-15_10-45-26 by Josh Cole, on Flickr


From this angle you can see the extra cut. But once the car is down, you cant see it. Also painting the muffler black helps.

2018-04-15_10-45-35 by Josh Cole, on Flickr


And this is it all mounted up. I'm glad I slid it back under the car more for a cleaner look. Still deciding on how to finish it yet. I have a few holes to fill in and paint the bolts. But overall happy with it. Took just under 8 hours to fully finish.

2018-04-15_10-46-34 by Josh Cole, on Flickr

2018-04-15_10-46-46 by Josh Cole, on Flickr

2018-04-15_10-46-25 by Josh Cole, on Flickr

2018-04-15_10-46-16 by Josh Cole, on Flickr
Appreciate 3
Mirko182.00
kaybat125.50
Vanne1593.00
      09-09-2018, 04:22 PM   #29
International M
New Member
0
Rep
5
Posts

Drives: BMW Z4MC
Join Date: May 2015
Location: Toronto

iTrader: (0)

This looks pretty good
Wonder if it's as effective tho
RU happy with it?
Appreciate 0
      09-09-2018, 04:23 PM   #30
International M
New Member
0
Rep
5
Posts

Drives: BMW Z4MC
Join Date: May 2015
Location: Toronto

iTrader: (0)

Sorry. I meant RU still happy with it?
Appreciate 0
      09-13-2018, 07:29 PM   #31
SwissArmy
Why so serious?
SwissArmy's Avatar
Canada
141
Rep
743
Posts

Drives: BMW Z4; BMW X5; BMW 733
Join Date: Dec 2012
Location: Toronto

iTrader: (1)

Quote:
Originally Posted by Beedub View Post
anyone fitted one of these to a roadster yet??

Not sure if it will work as well visually ......
I have. No modifications needed. Although, I have a custom exhaust setup

Not a good picture but, here you go. It looks tilted, but it really isn't. Weird.





Appreciate 0
      10-03-2018, 02:02 AM   #32
shimfoto
Private First Class
shimfoto's Avatar
Russia
64
Rep
113
Posts

Drives: BMW e36 M3
Join Date: Feb 2018
Location: Russia Moscow

iTrader: (0)

Quote:
Originally Posted by SwissArmy View Post
I have. No modifications needed. Although, I have a custom exhaust setup

Not a good picture but, here you go. It looks tilted, but it really isn't. Weird.





Looks Good!!
__________________
Instagram: Shimfoto

Fancywide shop - Diffusers and other parts. Shipping worldwide
Appreciate 0
      11-26-2020, 06:33 AM   #33
shimfoto
Private First Class
shimfoto's Avatar
Russia
64
Rep
113
Posts

Drives: BMW e36 M3
Join Date: Feb 2018
Location: Russia Moscow

iTrader: (0)

Special price for BMW Z4 / Z4M rear diffuser - 336$ USD.
Black Friday has already started!
Promo code: BLACK https://fancywide.ru/fancywide-tuning-store/

20% OFF FOR ALL PRODUCTS.
Accept PayPal - Shipping worldwide.




__________________
Instagram: Shimfoto

Fancywide shop - Diffusers and other parts. Shipping worldwide
Appreciate 1
Mirko182.00
      11-29-2020, 12:56 AM   #34
CTMP4me
Private First Class
28
Rep
104
Posts

Drives: '08 Z4MC, '71 240Z with S54
Join Date: Sep 2016
Location: Toronto

iTrader: (0)

Quote:
Originally Posted by shimfoto View Post
That wing is 100% mounted backwards and upside down 😂 - even more obvious when you look at the last photo:
Appreciate 1
Mirko182.00
      12-04-2020, 09:26 PM   #35
Vanne
Down Under!!
Vanne's Avatar
United Arab Emirates
1593
Rep
4,293
Posts

Drives: 2007 Z4MC
Join Date: Mar 2013
Location: Dubai

iTrader: (4)

must be on purpose... , as probably the rear scrubs at speed (as its so low), so the wing /helps/ it lift the rear a bit.
(i mounted my rear ARB upside down too in a hurry, that was on purpose too, just to see if you guys would catch it...)
Love pick-achoo though, that rocks
__________________
2007 EuroSpec Z4///MC - Building/Developing Z4 GT3
Powered by
Appreciate 0
      12-05-2020, 05:12 PM   #36
Michael9218
Lieutenant
Michael9218's Avatar
593
Rep
482
Posts

Drives: 2007 Z4 M Coupe
Join Date: Oct 2012
Location: Woodstock, GA

iTrader: (0)

Or the statement "I want my car to fly" has a more literal meaning in Russian...
Appreciate 0
      01-20-2022, 06:32 AM   #37
shimfoto
Private First Class
shimfoto's Avatar
Russia
64
Rep
113
Posts

Drives: BMW e36 M3
Join Date: Feb 2018
Location: Russia Moscow

iTrader: (0)

Steven Burke Z4M with Fancywide Diffuser.
Attached Images
    
__________________
Instagram: Shimfoto

Fancywide shop - Diffusers and other parts. Shipping worldwide
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 02:31 AM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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