E90Post
 


MINHS Auto Care Center
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Has anyone regretted installing the Modified CDV?



Reply
 
Thread Tools Search this Thread
      10-02-2012, 04:00 PM   #1
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Has anyone regretted installing the Modified CDV?

Just had mine done...and I don't know if I like it.

I did my BMS Clutch Stop last week. Greatest mod ever! It makes such a difference...

Today I had my CDV replaced with the Burger (BMS) Modified CDV. It shifts easier...but I feel like it's too easy!

I miss the feel of the car putting you into gear when you shift...it now feels like a softer shift. Before the car would match the RPM's fast if you were slighly off...it doesn't really do that all that much now - instead it softly slides into the correct RPM range and I feel like the car is boggin down. From 2nd to 3rd if I punch it...I get no power for a second or so...


I'm going to drive the car for a little tonight to see if I really like it or if it was just my mind playing tricks on me...



Anyone else feel the same?
Appreciate 0
      10-02-2012, 04:03 PM   #2
bigdnno98
Major
bigdnno98's Avatar
United_States
13
Rep
1,144
Posts

 
Drives: Saving $$ for an F82 M4 :0
Join Date: Jul 2011
Location: Clarksville, TN

iTrader: (7)

haha, nope, i'm the opposite. i hated my clutch stop and took it off and i think the CDV mod was one of the best i've done to this car. LOL
__________________
99 Eclipse GSX dyno numbers soon
12 Maxima Slow
03 EVO 8 600HP Sold
09 e92 335i 440hp Sold
Appreciate 0
      10-02-2012, 04:24 PM   #3
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Quote:
Originally Posted by bigdnno98 View Post
haha, nope, i'm the opposite. i hated my clutch stop and took it off and i think the CDV mod was one of the best i've done to this car. LOL
I just feel like the gearbox is now sluggish...

It was crisp before. Maybe it's just me. I'm going to test it out later tonight to get a better feel for the car.
Appreciate 0
      10-02-2012, 04:45 PM   #4
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
246
Rep
18,414
Posts


 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

iTrader: (32)

Send a message via AIM to Jeff@TopGearSolutions
CDV delete should be one of the first mods. Plus you can do it for free if your handy.
Perhaps you might need to bleed your clutch line if it was done wrong though? I'm not sure if any of our symptoms equate correctly for what the CDV Delete is supposed to accomplish. It is supposed to make engagement of the clutch quicker and bite harder on a quick shift. Previously, the car on a 1-2 shift would not grab as hard and would literally delay engagement causing the clutch to slip. The purpose was to reduce drivetrain shock when shifting hard and fast.
Appreciate 0
      10-02-2012, 04:53 PM   #5
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Quote:
Originally Posted by Jeff@topgearsolutions View Post
CDV delete should be one of the first mods. Plus you can do it for free if your handy.
Perhaps you might need to bleed your clutch line if it was done wrong though? I'm not sure if any of our symptoms equate correctly for what the CDV Delete is supposed to accomplish. It is supposed to make engagement of the clutch quicker and bite harder on a quick shift. Previously, the car on a 1-2 shift would not grab as hard and would literally delay engagement causing the clutch to slip. The purpose was to reduce drivetrain shock when shifting hard and fast.

Clutch was bleed...twice actually.

The clutch pedal feels nice and firm...it's the actual shifting that feels weird.
Appreciate 0
      10-02-2012, 04:54 PM   #6
e92oholic
Banned
United_States
14
Rep
854
Posts

 
Drives: 2013 MINI JCW GP
Join Date: Feb 2012
Location: Buffalo NY

iTrader: (6)

If you didn't bleed your clutch after its not going to feel right. I did mine and didn't bleed it after. Took it to the shop and we bleed it 3 times before all the air was out. After that it was so much better, its how the car should come.
Appreciate 0
      10-02-2012, 05:16 PM   #7
kkashanchi
Second Lieutenant
kkashanchi's Avatar
3
Rep
237
Posts

 
Drives: 2008 e90 335i
Join Date: Feb 2012
Location: Irvine

iTrader: (-1)

was this your first manual car? i thought shifting was weird with the cdv installed lol
Appreciate 0
      10-02-2012, 05:39 PM   #8
shaginwagon13
Charted Accountant
shaginwagon13's Avatar
Canada
10
Rep
910
Posts

 
Drives: BMW 335i Coupe
Join Date: Apr 2012
Location: Toronto

iTrader: (4)

Quote:
Originally Posted by kkashanchi View Post
was this your first manual car? i thought shifting was weird with the cdv installed lol
+1

When I am in traffic I get different engagement points and can't stand it. I ordered my modified CDV from BMS as well and will be doing the swap next week.
Appreciate 0
      10-02-2012, 07:09 PM   #9
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Quote:
Originally Posted by e60oholic View Post
If you didn't bleed your clutch after its not going to feel right. I did mine and didn't bleed it after. Took it to the shop and we bleed it 3 times before all the air was out. After that it was so much better, its how the car should come.
I bleed the clutch twice after it was installed...

The clutch pedal feels nice and firm (like a new car).

Quote:
Originally Posted by kkashanchi View Post
was this your first manual car? i thought shifting was weird with the cdv installed lol
This is indeed my first manual car...so maybe I'm still getting used to it, but I've had my E92 for over a year so I'm pretty decent at stick.

It just feels sloppy. I'll give it another shot later tonight or tomorrow as it's raining out.

Quote:
Originally Posted by shaginwagon13 View Post
+1

When I am in traffic I get different engagement points and can't stand it. I ordered my modified CDV from BMS as well and will be doing the swap next week.
That's the same problem I was having. The engagement points were shit and would cause the car to jerk a ton between the first 3 gears.

Now it doesn't jerk as much...but it feels very loose and the car doesn't pickup the way it normally would.
Appreciate 0
      10-02-2012, 08:11 PM   #10
335xi Kevo
Lieutenant
335xi Kevo's Avatar
7
Rep
502
Posts

 
Drives: 2008 335xi
Join Date: Jan 2012
Location: CT

iTrader: (3)

Mine shifts smooth as butter and insanely fast. I do mess up from time to time as the short throw clutch and the CDV together doesnt give u much wiggle room.
__________________
08' 335xi 6MT
Space Metallic Grey
Premium, Nav, Cold weather, Sport
Procede 2.5, DCI, Forge DV, PWM, Scoops, KW V1, ETS 5" FMIC, VRSF Downpipes, M3 Skirts
Appreciate 0
      10-03-2012, 03:43 AM   #11
johmei
Private First Class
johmei's Avatar
Sweden
1
Rep
148
Posts

 
Drives: BMW 335i FBO COBB
Join Date: Mar 2012
Location: Sweden

iTrader: (1)

I do not see how you could get less and more sluggish feel with CDV swap if you didn't swap for a even tighter CDV?! Try deleting the CDV all together and see if it improves. Make sure it is well bled, I know it is tight but get it right.

You should feel in more control of the clutch and be able to do faster shifts. The ride can get a bit jerky for a while after the mod as you get used to the new feel and control.

Before I deleted my CDV I had a lot of bad shifts 1-2 and 2-3 as the clutch did not engage right when I released the clutch.
Appreciate 0
      10-03-2012, 03:51 AM   #12
cstavaru
Brigadier General
cstavaru's Avatar
94
Rep
3,237
Posts

 
Drives: 2009 335i M Sport Sedan 6MT
Join Date: Aug 2008
Location: Bucharest, Romania

iTrader: (0)

There is definitely something wrong if your car feels sluggish after you replaced the CDV. Maybe your clutch is really slipping ? Replacing the CDV will only eliminate the delay with which the clutch disc touches the flywheel after you lift the foot off the pedal. This can't be good in any circumstances unless you are used to dumping the clutch, in which case it protects your driveline from shocks.
Appreciate 0
      10-03-2012, 08:21 PM   #13
Figure807
Power without control is no power at all...
Figure807's Avatar
United_States
3
Rep
156
Posts

 
Drives: 335i 6spd Blk/Blk
Join Date: Oct 2009
Location: Honolulu, Hawaii

iTrader: (1)

Have someone else who has had more than one manual tell you how it feels. CDV delete should not do this.

Side note: you don't need to buy anything for this mod. Just pull the CDV out and pop out the restrictor with a small screwdriver. Reinstall and done.
__________________
2009 335i Coupe 6MT Blk Sapphire / Blk Leather
2007 328i Coupe 6MT Blk Sapphire / Blk Leather *Sold
1985 Toyota Corolla GTS 5MT 1.5-way Slvr / Blk *Sold
1987 Toyota Corolla GTS 5MT KAAZ 2-way Blk / Blk *Sold
Appreciate 0
      10-03-2012, 08:33 PM   #14
jetblackcoupe
Captain
jetblackcoupe's Avatar
22
Rep
713
Posts

 
Drives: 2008 e92 335i 6MT
Join Date: Apr 2011
Location: NJ

iTrader: (2)

A bit off topic sorry but what are the symptoms of a clutch that needs bleeding?
Appreciate 0
      10-03-2012, 08:44 PM   #15
Evil///M
Professional Hitman
United_States
8
Rep
542
Posts

 
Drives: 335i Street. E36 M3 Track.
Join Date: Feb 2011
Location: 719/856

iTrader: (6)

Garage List
2007 335i  [4.25]
Quote:
Originally Posted by jetblackcoupe View Post
A bit off topic sorry but what are the symptoms of a clutch that needs bleeding?
soft spongey clutch pedal feel
__________________
Appreciate 0
      10-03-2012, 10:32 PM   #16
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Quote:
Originally Posted by Evil///M View Post
soft spongey clutch pedal feel
It would only be the pedal correct? We bleed the clutch twice and he pedal feels firm as hell...so I assume the bleeding was done correctly.

Would the bleeding affect anything else besides the pedal? - say the actual shift? No right?
Appreciate 0
      10-04-2012, 12:23 AM   #17
Evil///M
Professional Hitman
United_States
8
Rep
542
Posts

 
Drives: 335i Street. E36 M3 Track.
Join Date: Feb 2011
Location: 719/856

iTrader: (6)

Garage List
2007 335i  [4.25]
Quote:
Originally Posted by pimp4cheddar View Post
It would only be the pedal correct? We bleed the clutch twice and he pedal feels firm as hell...so I assume the bleeding was done correctly.

Would the bleeding affect anything else besides the pedal? - say the actual shift? No right?
No, not unless its really bad, then the clutch would not engage fully.
I'm sure it is fine, you just need to get used to the new feel.
__________________
Appreciate 0
      10-04-2012, 01:07 AM   #18
EDM92
Colonel
EDM92's Avatar
United_States
55
Rep
2,562
Posts

 
Drives: Low&Slow
Join Date: Nov 2008
Location: Florida

iTrader: (9)

Coming from the guy who said the stock tune felt faster than the JB3, I don't believe you.
__________________

Montego Blue 2007 E92 335i - ZSP / ZPP / Steptronic / Logic7
Broadway Static - CCW - Megan - Orion
Instagram: bmwforlife
Appreciate 0
      10-04-2012, 09:13 AM   #19
pimp4cheddar
El Capitán
pimp4cheddar's Avatar
United_States
29
Rep
1,794
Posts

 
Drives: Mojave E92
Join Date: Jul 2011
Location: Central Florida

iTrader: (11)

Quote:
Originally Posted by EDM92 View Post
Coming from the guy who said the stock tune felt faster than the JB3, I don't believe you.

You believe what you want...I'm tell you - that car feels spool different.

Also the JB3 was terrible!
Appreciate 0
      10-04-2012, 11:48 AM   #20
drfrink24
Second Lieutenant
5
Rep
230
Posts

 
Drives: 2008 335xi
Join Date: Apr 2011
Location: SE MN

iTrader: (0)

I've been driving manual transmission exclusively since 1993, my previous car was a 2004 WRX STI, the stock clutch feel and engagement was horrid compared the the 6MT in the STI, and nearly impossible to shift quickly nor smoothy. The CDV + Clutch stop was able to bring it around the at least the same ballpark (but still not as good).

I honestly don't know how anyone with even moderate talent at rowing thru gears could feel the CDV made things worse, no offense subby, just being honest.
Appreciate 0
      10-04-2012, 12:28 PM   #21
cstavaru
Brigadier General
cstavaru's Avatar
94
Rep
3,237
Posts

 
Drives: 2009 335i M Sport Sedan 6MT
Join Date: Aug 2008
Location: Bucharest, Romania

iTrader: (0)

You can't regret this because you can undo the change in 15 minutes. It's not like cutting your subframe...
Appreciate 0
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
Forum Jump


All times are GMT -5. The time now is 01:13 AM.




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