Clutch diverter valve question!!

ttbmer · 12-12-2010, 07:55 PM

As we all know AR makes amazing products. My question is! Has anybody used an AR modified CDV? I just order mine and would like to know how other users like this product? And also if the diferences between the modified one and the stock is worth the time to change it.
Thank u!

NiVeDh · 12-12-2010, 08:43 PM

A modified CDV makes a huge difference. You'll love it. I went with a CDV that looks OEM from outside but the internals are modified. The AR one, based on pictures on their website, looks like it doesn't have any markings on the outside so it might throw a flag with a dealer if you ever had a transmission issue. They probably won't even notice though.

azwillnj · 12-12-2010, 08:45 PM

They are incredible, makes an enormous difference in the smoothness of shifting, especially in the lower gears. You got ripped off buying one though, all you need is a hammer and a screwdriver to beat out the restrictor plate, it's very easy and doesn't damage the valve at all.

Penn999 · 12-12-2010, 11:08 PM

Quote:

Originally Posted by azwillnj

They are incredible, makes an enormous difference in the smoothness of shifting, especially in the lower gears. You got ripped off buying one though, all you need is a hammer and a screwdriver to beat out the restrictor plate, it's very easy and doesn't damage the valve at all.

lol ripped off, its 20 bucks. I understand what this mod is supposed to do, but is there any technical data to back up the claims?

NiVeDh · 12-12-2010, 11:11 PM

Quote:

Originally Posted by Penn999

lol ripped off, its 20 bucks. I understand what this mod is supposed to do, but is there any technical data to back up the claims?

It's mostly a "feel" thing. I don't know how you can get "technical data" on clutch engagement...

Penn999 · 12-12-2010, 11:13 PM

Quote:

Originally Posted by NiVeDh

It's mostly a "feel" thing. I don't know how you can get "technical data" on clutch engagement...

improved shift times, ex. .30 vs. .26. Improved 0-60, like they claim.

Jkiech · 12-12-2010, 11:22 PM

Quote:

Originally Posted by NiVeDh

A modified CDV makes a huge difference. You'll love it. I went with a CDV that looks OEM from outside but the internals are modified. The AR one, based on pictures on their website, looks like it doesn't have any markings on the outside so it might throw a flag with a dealer if you ever had a transmission issue. They probably won't even notice though.

I think I'm going to modify mine this weekend. Can't wait for feel the difference in shifting.

PeteW84 · 12-12-2010, 11:27 PM

CDV stands for clutch delay valve, not clutch diverter valve...

Bimmer This · 12-12-2010, 11:31 PM

Name one thing that AR makes/sells that isn't amazing?

Penn999 · 12-12-2010, 11:43 PM

Quote:

Originally Posted by Bimmer This

Name one thing that AR makes/sells that isn't amazing?

LOL I have almost all of their parts, I know they are great. But I bet there isnt much diff. in AR's cdv and another brands cdv, its just not that complex. Although one thing I will gripe about is that AR's instructions for installs are outdated and not the most accurate. I got my OCC and 2nd oil cooler installed AT BMW and they had trouble with both. We had to come up with custom brackets to support the Oil cooler. Also they dont tell you that if you have a BOV and use their OCC, there isnt much room for the bulky rubber hoses to be tucked away/under, doesnt look very pretty, but its functional! Thats what matters!

ttbmer · 12-13-2010, 02:22 AM

Quote:

Originally Posted by Bimmer This

Name one thing that AR makes/sells that isn't amazing?

True!! I guess I got my answer hehehe thanks everyone! Can't wait!! Doing the install on sat!

prelude2perfect · 12-13-2010, 12:30 PM

Quote:

Originally Posted by Penn999

lol ripped off, its 20 bucks. I understand what this mod is supposed to do, but is there any technical data to back up the claims?

Cool, then send me 20 bucks if you don't think that's getting ripped off. You have to take off the stock one anyway and like the poster before you stated, all you need to do is pop out the center with a screwdriver and hammer. Takes less than a second and is the same thing as your $20 AR "modified" one. Why do you think they call it a "modified" CDV. You're basically paying someone else $20 to pop out the center of a stock CDV.

Send me yours and I'll do it for $10, lol.

Transport3r · 12-13-2010, 12:35 PM

is there a diy to take it out?

Bimmer This · 12-13-2010, 01:32 PM

Quote:

Originally Posted by joshuo

is there a diy to take it out?

azwillnj · 12-13-2010, 02:30 PM

Insert small screwdriver into small diameter side of cdv
place cdv on soft surface
hit screwdriver with hammer
...profit

It really is that easy, just make sure you put the screwdriver in the small end of the CDV. If you don't know what I'm talking about take the CDV out and compare the ends, you'll understand.

Alex.

Quote:

Originally Posted by joshuo

is there a diy to take it out?

Enicinitas · 12-13-2010, 03:17 PM

Pretty sure that they have this CDV drop shipped from BMS, read (not their work) - at least that's how it was for me

Penn999 · 12-13-2010, 04:31 PM

Quote:

Originally Posted by prelude2perfect

Cool, then send me 20 bucks if you don't think that's getting ripped off. You have to take off the stock one anyway and like the poster before you stated, all you need to do is pop out the center with a screwdriver and hammer. Takes less than a second and is the same thing as your $20 AR "modified" one. Why do you think they call it a "modified" CDV. You're basically paying someone else $20 to pop out the center of a stock CDV.

Send me yours and I'll do it for $10, lol.

My whole point is that it seems like a useless "mod" if you can even call it that.

prelude2perfect · 12-14-2010, 12:54 PM

Quote:

Originally Posted by Penn999

My whole point is that it seems like a useless "mod" if you can even call it that.

I think I speak for everyone on here when I say:

Mr. 5 · 12-14-2010, 05:31 PM

Do yourselves a favor and just delete it like me.
A cdv takes a 4mm hole and contricts it to a 1mm hole. (specs are most likely not accurate but makes a point)
A modifed cdv just makes the 4mm hole the same throughout which is the same as deleting it all together.

Yes, the CDV is a PITA for people that really know how to drive a stick.
No matter how quickly the clutch pedal is let out, the clutch will always engage at the slower rate.

I deleted the CDV the very first day I got my car.

Jonny550 · 12-14-2010, 07:15 PM

Quote:

Originally Posted by Mr. 5

Do yourselves a favor and just delete it like me.
A cdv takes a 4mm hole and contricts it to a 1mm hole. (specs are most likely not accurate but makes a point)
A modifed cdv just makes the 4mm hole the same throughout which is the same as deleting it all together.

Yes, the CDV is a PITA for people that really know how to drive a stick.
No matter how quickly the clutch pedal is let out, the clutch will always engage at the slower rate.

I deleted the CDV the very first day I got my car.

so what just take out the CDV and connect straight through?

Mr. 5 · 12-14-2010, 07:56 PM

Quote:

Originally Posted by Jon335iFL

so what just take out the CDV and connect straight through?

That's what I did.
A lot of people think that you need something to go in its place, but you don't.
It's a plug and play thing.

The main reason to put something in its place is so the dealer can see that something is there and if anything happens to the trans then they can't fall back on that.

bkrM3 · 12-15-2010, 07:58 AM

Quote:

Originally Posted by Mr. 5

The main reason to put something in its place is so the dealer can see that something is there and if anything happens to the trans then they can't fall back on that.

+1

The esteemed Mr. 5 certainly isn't on the verge of having to ask a dealer to replace the clutch under extended maintenance

I, on the other hand........

12-12-2010, 07:55 PM	#1
ttbmer Lieutenant Colonel 70 Rep 1,943 Posts Drives: space gray on black 07 335i Join Date: Jul 2010 Location: las Vegas nv iTrader: (15)	Clutch diverter valve question!! As we all know AR makes amazing products. My question is! Has anybody used an AR modified CDV? I just order mine and would like to know how other users like this product? And also if the diferences between the modified one and the stock is worth the time to change it. Thank u! __________________ PROCEDE, PWM Vishnu Kit, AR catless DP, BMS DCI, Helix IC, P3 gauge, 25% window tint, mattblack window trim, mattblack roof wrapped. Vorstainer CSL trunk, CF wrapped interior, 18'' Forgestar F14 Matt black, quaife LSD, M3 suspension bits, Mtech front bumper). http://www.youtube.com/watch?v=b8JIB8C8HDA
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12-12-2010, 08:43 PM	#2
NiVeDh Major General 426 Rep 8,003 Posts Drives: '08 E90 335i, '99 E36 M3 Join Date: Apr 2009 Location: Houston, TX & Atlanta, GA iTrader: (132) Garage List 2008 BMW 335i Sedan [8.66]	A modified CDV makes a huge difference. You'll love it. I went with a CDV that looks OEM from outside but the internals are modified. The AR one, based on pictures on their website, looks like it doesn't have any markings on the outside so it might throw a flag with a dealer if you ever had a transmission issue. They probably won't even notice though.
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12-12-2010, 08:45 PM	#3
azwillnj First Lieutenant 342 Rep 388 Posts Drives: 2023 M340i xDrive Join Date: Nov 2007 Location: Northern VA iTrader: (0)	They are incredible, makes an enormous difference in the smoothness of shifting, especially in the lower gears. You got ripped off buying one though, all you need is a hammer and a screwdriver to beat out the restrictor plate, it's very easy and doesn't damage the valve at all. __________________ Current: 2023 G20 LCI M340i xDrive History: 2005 E90 325i > 2008 E90 328xi > 2011 E90 LCI 335i xDrive > 2013 F30 328i xDrive > 2016 F30 LCI 340i xDrive > 2020 G20 M340i xDrive WE ARE!
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12-12-2010, 11:27 PM	#8
PeteW84 COBB'ed 65 Rep 2,228 Posts Drives: 13 Mini Cooper S Join Date: Apr 2008 Location: Tinley Park, IL iTrader: (1) Garage List 2008 335i [7.56]	CDV stands for clutch delay valve, not clutch diverter valve... __________________ 13 Mini Cooper S 08 E92 335i (SOLD)
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12-12-2010, 11:31 PM	#9
Bimmer This Major General 100 Rep 6,473 Posts Drives: 2007 BMW 335i Join Date: Nov 2008 Location: Westminster iTrader: (3)	Name one thing that AR makes/sells that isn't amazing?
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12-13-2010, 12:35 PM	#13
Transport3r Major 87 Rep 1,262 Posts Drives: 2011 N55 E90 Join Date: Sep 2010 Location: Melbourne, FL iTrader: (4)	is there a diy to take it out? __________________ Josh-
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12-13-2010, 03:17 PM	#16
Enicinitas First Lieutenant 13 Rep 322 Posts Drives: Gray Coupe Join Date: Feb 2010 Location: Left Coast iTrader: (8)	Pretty sure that they have this CDV drop shipped from BMS, read (not their work) - at least that's how it was for me
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12-14-2010, 05:31 PM	#19
Mr. 5 Modder Raider 800 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	Do yourselves a favor and just delete it like me. A cdv takes a 4mm hole and contricts it to a 1mm hole. (specs are most likely not accurate but makes a point) A modifed cdv just makes the 4mm hole the same throughout which is the same as deleting it all together. Yes, the CDV is a PITA for people that really know how to drive a stick. No matter how quickly the clutch pedal is let out, the clutch will always engage at the slower rate. I deleted the CDV the very first day I got my car. __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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