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#1. Re: [E36M3] Clucth Delay Valve - from Carlos Lopez
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Date: Wed, 18 Apr 2007 17:38:44 -0400 From: "Carlos Lopez" <clopez98m3@gmail.com> Subject: Re: [E36M3] Clucth Delay Valve On 4/18/07, Brad DeMotte <brad@demottearchitects.com> wrote: > If you read the Zeckhausen info, there is no reference to the CDV valve > modification for an E36 M3, even though our cars have them. If you read > further, you'll see 2 reasons why they prefer the modified CDV as opposed to > eliminating it...fitment issues & warranty issues. Warranty issues, who's E36 is still under warranty? ;-) Bah remove it, I did and I like the results. Haven't drag raced the car to see if it made a difference in that department though. ;-) The only reason I would replace the line with the UUC one at the same time is that I twisted the crap out of the stock one removing the CDV but I knew I had a new line so I didn't bother being careful with it. YMMV. Carlos 98 M3 CDV gone and much happier for it
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#2. Re: [E36M3] Clucth Delay Valve - from jeff.conner@yahoo.com
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Date: Wed, 18 Apr 2007 14:40:53 -0700 (PDT) From: jeff.conner@yahoo.com Subject: Re: [E36M3] Clucth Delay Valve To toss my $.02 in here.... I've removed the CDV from three M3s (2-E36, 1-E46) and have noticed no ill effects from what could be seen as improper fitment. Everything lines up hunky-dory. As for the warranty issue with a new car, I can see replacing the stock CDV with a "Zeckhausen-ed" version. -jeff *HAS noticed ill effects in my car from being an occasionally lousy driver :-) S52 Sedan (the daily) S50 Trackdog (self-explanatory) ----- Original Message ---- From: Brad DeMotte <brad@demottearchitects.com> To: E36M3 <e36m3@bmw-m.net> Sent: Wednesday, April 18, 2007 2:25:41 PM Subject: RE: [E36M3] Clucth Delay Valve Date: Wed, 18 Apr 2007 17:18:49 -0500 From: "Brad DeMotte" <brad@demottearchitects.com> Subject: RE: [E36M3] Clucth Delay Valve Matt, If you read the Zeckhausen info, there is no reference to the CDV valve modification for an E36 M3, even though our cars have them. If you read further, you'll see 2 reasons why they prefer the modified CDV as opposed to eliminating it...fitment issues & warranty issues. Brad DeMotte '97 M3 cammed,sharked,lowered,yada yada yada -----Original Message----- From: Matt Bader [mailto:mbader@exammaster.com] Sent: Wednesday, April 18, 2007 4:06 PM To: E36M3 Subject: [E36M3] Clucth Delay Valve Date: Wed, 18 Apr 2007 17:07:04 -0400 From: "Matt Bader" <mbader@exammaster.com> Subject: Clucth Delay Valve Hi Folks: I have seen two options for improving the performance of an E36 (96-99 M3) clutch w/lightweight flywheel set-up. I have the classic symptoms of the slow-responding Clutch Delay Valve (I believe also called "check valve" or "lock valve"). One option is to simply remove the valve as posted on UUC's tech section: http://www.uucmotorwerks.com/html_techtip/techtips/check_valve.htm Or, optionally, replace the CDV with a modified valve that has the interior parts removed: http://www.zeckhausen.com/CDV.htm My mechanic thinks removal (cheaper solution) should be good enough. According to UUC, once removed, the hydraulic line can just go right into the slave cylinder with no additional parts needed. Not sure if I am comparing apples to apples here, but it appears like either solution will work. Any thoughts appreciated. Matt Bader 98 M3/4 ************************************************* Please help support the E36M3 list by visiting our sponsors: Bimmerworld http://www.bimmerworld.com Turner Motorsport http://www.turnermotorsport.com Eurosport High Performance http://www.eurosporthighperformance.com Rogue Engineering http://www.rogueengineering.com Treehouse Racing http://www.treehouseracing.com Elephant Motorsports Inc. http://www.elephantmotorsports.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm ************************************************* ************************************************* Please help support the E36M3 list by visiting our sponsors: Bimmerworld http://www.bimmerworld.com Turner Motorsport http://www.turnermotorsport.com Eurosport High Performance http://www.eurosporthighperformance.com Rogue Engineering http://www.rogueengineering.com Treehouse Racing http://www.treehouseracing.com Elephant Motorsports Inc. http://www.elephantmotorsports.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm ************************************************* __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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#3. Bleeding the clutch (was: RE: [E36M3] Clucth Delay Valve) - from Scott
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Date: Wed, 18 Apr 2007 14:48:42 -0700 From: "Scott" <stiles_s@hotmail.com> Subject: Bleeding the clutch (was: RE: [E36M3] Clucth Delay Valve) This got me thinking: I removed my CDV not too long ago, and didn't really notice much change. What I did notice, however, was what felt like weaker clutch engagement as a result. It makes me worry that my clutch is toast, but also makes me think I might not have bled it well enough. Can someone give me some insight into what it would feel like if my clutch master cylinder wasn't bled fully/correctly? Also, can someone characterize what an M3 clutch feels like when it's just about toast? Mine engages pretty high on the clutch-pedal-travel, to the point where I worry about it fully engaging when I'm starting on a hill. I'm being gentle on it, by the way. Thanks, Scott. -----Original Message----- From: Chester Wong [mailto:chester_p_wong@yahoo.com] Sent: Wednesday, April 18, 2007 2:36 PM To: E36M3 Subject: RE: [E36M3] Clucth Delay Valve Date: Wed, 18 Apr 2007 14:35:03 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: RE: [E36M3] Clucth Delay Valve Are there any E36s that are still covered under warranty? hahaha. I removed it and threw it away...no need for a modified piece. Chester --- Brad DeMotte <brad@demottearchitects.com> wrote: > If you read the Zeckhausen info, there is no reference to the CDV valve > modification for an E36 M3, even though our cars have them. If you read > further, you'll see 2 reasons why they prefer the modified CDV as opposed to > eliminating it...fitment issues & warranty issues.
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#4. Re: Clucth Delay Valve - from Neil Maller
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Date: Wed, 18 Apr 2007 18:02:14 -0400 From: Neil Maller <neil.maller@gte.net> Subject: Re: Clucth Delay Valve on 4/18/07 5:45 PM, Chester Wong <chester_p_wong@yahoo.com> wrote: > I removed it and threw it away...no need for a modified piece. And the Bastard Child, which according to the ETK has a CDV - see <http://tinyurl.com/3xp3b2> - which I too was going to throw away, in fact doesn't. Figures. Neil Fort Wayne, IN 96 M3 - Bastard child 03 525iT - Sterling Grey Metallic 05 Mini - Cooper S with LSD
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#5. Re: [E36M3] Clucth Delay Valve - from Jim Bassett
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Date: Wed, 18 Apr 2007 15:04:34 -0700 (PDT) From: "Jim Bassett" <jim@jimbassett.com> Subject: Re: [E36M3] Clucth Delay Valve I'll go out on a limb and guess that I'm the only person who removed the CDV, didn't like how it felt, and put it back in :-) Of course, this was on the M3 after it was retired from the track, and has a stock-weight flywheel. It just didn't seem to "work" for me in daily-driving. The race car, on the other hand, has a LTW flywheel, and AFAIK no CDV, and I like that combo just fine. For me, must be the combination of no CDV/LTW flywheel <shrug>. My 2 cents, Jim Bassett
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#6. AA Stage S/C Kit - from Matt Bader
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Date: Wed, 18 Apr 2007 18:12:40 -0400 From: "Matt Bader" <mbader@exammaster.com> Subject: AA Stage S/C Kit Not sure of this is mainly a natural aspiration group on this list, but for anyone interested, Active Autowerke just posted the specs on their Stage II upgrade for the Rotrex C-38 supercharger kit. http://forums.bimmerforums.com/forum/showthread.php?t=731055 I have the Stage I kit on my car now, and the results I got were pretty close to Active's claim on their website. The fit was pretty good, and all seems to work well. I get about 20 mpg in overall driving with a heavy foot. Matt Bader 98 M3/4 Delaware
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#7. Clutch Delay Valve - from Matt Bader
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Date: Wed, 18 Apr 2007 18:12:40 -0400 From: "Matt Bader" <mbader@exammaster.com> Subject: Clutch Delay Valve Thanks to all for the replies on the CDV. Looks like that baby is going in the trash. Matt Bader 98 M3/4
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#8. Re: [E36M3] Clucth Delay Valve - from Carlos Lopez
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Date: Wed, 18 Apr 2007 18:16:00 -0400 From: "Carlos Lopez" <clopez98m3@gmail.com> Subject: Re: [E36M3] Clucth Delay Valve On 4/18/07, Jim Bassett <jim@jimbassett.com> wrote: > I'll go out on a limb and guess that I'm the only person who removed the > CDV, didn't like how it felt, and put it back in :-) You just lost all credibility you had with that statement. :-) My car was difficult to shift smoothly with the CDV installed and I wasn't the only one to notice that, friends that drove it commented on it. Then the last straw was when I took the car to a drag strip and the CDV made it feel like the clutch was slipping and was affecting my times I'm sure. You know ya gotta beat the co-workers for bragging rights. The one co-worker that beat me had a supercharged S2000 but he toasted his Spec clutch in the process. I'm sure I'll go back sometime this year and I'm hoping to notice the improvement, the improvement on the street was apparent right away. :-) Carlos 98 M3
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#9. Re: [E36M3] Re: Clucth Delay Valve - from Chester Wong
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Date: Wed, 18 Apr 2007 15:22:30 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] Re: Clucth Delay Valve --- Neil Maller <neil.maller@gte.net> wrote: > on 4/18/07 5:45 PM, Chester Wong <chester_p_wong@yahoo.com> wrote: > > > I removed it and threw it away...no need for a modified piece. > > And the Bastard Child, which according to the ETK has a CDV - see > <http://tinyurl.com/3xp3b2> - which I too was going to throw away, > in fact doesn't. Figures. Bastard Child, indeed! Chester
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#10. Re: [E36M3] Clucth Delay Valve - from Chester Wong
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Date: Wed, 18 Apr 2007 15:23:09 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] Clucth Delay Valve Yeah...it's you. *takes two steps away from Jim* =D Chester --- Jim Bassett <jim@jimbassett.com> wrote: > I'll go out on a limb and guess that I'm the only person who removed the > CDV, didn't like how it felt, and put it back in :-)
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#11. Re: [E36M3] Clucth Delay Valve - from Jim Bassett
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Date: Wed, 18 Apr 2007 15:23:24 -0700 (PDT) From: "Jim Bassett" <jim@jimbassett.com> Subject: Re: [E36M3] Clucth Delay Valve On Wed, April 18, 2007 3:15 pm, Carlos Lopez said: > You just lost all credibility you had with that statement. :-) You're assuming I felt I had any to begin with. :-) Jim Bassett