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#1. RE: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG - from Kit Wetzler
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Date: Thu, 25 Apr 2002 14:26:43 -0700 From: Kit Wetzler <kitwetzler@mindspring.com> Subject: RE: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG > Kit, I think the term applies to the effective static spring rate of the > spring, given a deflection. I picked a bad terms. My point was that a spring gets stiffer the more you compress it, while a shock absorber does not. Force is progressively larger, spring rate remains constant with a linear rate spring. -kit
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#2. Re: Who Cares about spring rate linearity in rebound - from Neil Maller
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Date: Thu, 25 Apr 2002 16:34:24 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: Who Cares about spring rate linearity in rebound on 4/25/02 1:15 PM, "Ron Buchalski" <rbuchals@hotmail.com> wrote: > Isn't it true that the design of Bilstein's (monotube) valving is such that > it's velocity-sensitive? All shocks are velocity sensitive in various ways and to different degrees. If you look at the published damping curves (resistance vs. velocity) they're just that: curves. The common deflecting disc valve system allows stiffer damping at low velocity without the shocks acting like solid rods at higher velocities (note were talking shock shaft velocity here, not speed of the car). Some of the big bucks shocks like Penske can have up to 4 way adjustment: high and low velocity for each of compression and rebound. Strikes me as that many more things for me to screw up... ;) Neil 96 M3
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#3. Re: Rear wheel lifting during autox - from Neil Maller
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Date: Thu, 25 Apr 2002 16:47:48 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: Rear wheel lifting during autox on 4/25/02 2:45 PM, fesler@nsc.com wrote: > The strut front suspension looses negative camber as it > compresses more rapidly than the rear does. Accordingly if you > have reasonable amounts of camber up front, more roll stiffness > equates to more camber up front as compared to the rear after the > cars weight has shifted and less understeer. Actually the front gains less negative camber than the rear. The net effect is relatively less grip with roll at the front as you imply, but the mechanism isn't quite what you state. on 4/25/02 2:45 PM, Chester Wong <chester_p_wong@yahoo.com> wrote: > Huh? More stiffness up front induces understeer. 'Tis why a car set up with > sways stiff/soft (f/r) is less likely to oversteer than a car set up with > soft/stiff (f/r). I know that at least this has been discussed before on the > list. Conventionally yes, but not exactly in the case of the E36 M3, for the reasons cited above. The relative front/rear camber change issue turns out to have more effect than the front roll stiffness one. That's why all the aftermarket swaybars (except Dinan) are much larger than stock at the front, despite the M3 being an understeering car. Of course spring rates, any static negative camber changes you may have made, and how much the car is lowered at each end all play a part too. My brain hurts... Neil 96 M3 - over 3 degrees negative camber at the front, about 2 at the rear
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#4. Re: brake calipers - from Neil Maller
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Date: Thu, 25 Apr 2002 18:17:32 -0500 From: Neil Maller <neil.maller@gte.net> Subject: Re: brake calipers on 4/25/02 4:35 PM, Scott McClung <scott.mcclung@ubicom.com> wrote: > Anyone know how many pistons the front and rear M3 > calipers have? One piston each. Neil - been there, rebuilt that 96 M3
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#5. RE: [E36M3] Speeding Ticket Advice? - from Dames, Mark
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Date: Thu, 25 Apr 2002 12:26:36 -0700 From: "Dames, Mark" <Mark.Dames@PDO.Co.Santa-Clara.CA.US> Subject: RE: [E36M3] Speeding Ticket Advice? Radar is a violation of the Calif Veh. Code Proscription against "Speed traps" unless it is done on a street which has had a valid traffic survey done within the past 5 years. (see Calif. Vehicle Code Section 40801, 40802, 40803, 40804, 40805, The traffic survey consists of monitoring the speed of 100 cars, in an inconspicuous fashion on that stretch of road. From those 100 cars a median speed is established (not average speed-- "median" means that speed at which 50 cars were slower and 50 were faster). The posted speed limit must not vary more than 5 mph from the median speed found in the survey. If it does, it's illegal to shoot radar on that street. Also the survey must be conducted in a certain manner depending if the street is a city surface street, a city and county through road, or a state Hwy (they have different definitions under the code. If the survey is not done in the fashion described for the particular type of street, its invalid and you can't shoot radar. Call the court, ask them to send you the survey for that street. Escort has a link to their anti-radar lobby/website with some info/tips on fighting radar. At trial object to any testimony re: radar, absent a valid survey. Object to to the survey as hearsay, you want your right to confront and cross-examine the engineer who made it. (US Sixth Amend) Assert your right to remain silent. "I'm not testifying, thank you very much your Honor, I'm just hear to cross-examine the officer" (US Fifth Amend) I always love this language: "In any prosecution under this code upon a charge involving the speed of a vehicle, any officer or other person shall be INCOMPETENT as a witness if the tesimony is based upon or obtained from or by the use of a speed trap." (Veh. Code Section 40804(a))(emphasis added) When they jerk with you, jerk back! -----Original Message----- From: Dorffer, Rich [mailto:RDORFFER@CleIndians.com] Sent: Thursday, April 25, 2002 7:05 AM To: E36M3 Subject: [E36M3] Speeding Ticket Advice? Date: Thu, 25 Apr 2002 09:59:26 -0400 From: "Dorffer, Rich" <RDORFFER@CleIndians.com> Subject: Speeding Ticket Advice? Peter says > > I got a ticket on the 12th -- radar recorded me at 68 in a 40. This is the > first time I got a notice that says "Mandatory Appearance", so I'm a little > freaked out. If you want to be freaked out, be freaked out about the ticket in general (fines and court costs) and the impact it may have on your insurance premiums (i.e., increased premiums). > Anyone know of a good traffic attorney in the SF Bay Area? Lot's of people here from the Bay, I am sure someone here can help. > Can a lawyer help me get this plead down to something reasonable? Yes, quite possibly they can. Maybe they can't. I myself got my last speeding ticket (42 in a 25) along with a seat belt infraction (which really got me pissed since I was wearing mine at the time but took it off to get my wallet when the cop approached the car) plead down to a non-moving violation just for appearing in court. I plead not guilty to both counts (since I was going to court, might as well fight the speeding ticket too) at my first appearance and went for trial at a later date. I showed up just to try to get the seat belt infraction eliminated (at a minimum) or thrown out along with the speeding ticket (best case scenario) if the cop didn't appear (Cleveland...so they were busy and just trying to move things along). The court was packed (lot's of more interesting cases than mine based on what I saw). The cop appeared at the last minute (much to my chagrin but they do get paid to appear) but he wanted to leave and told the DA that when she approached him. The DA approached me and asked why I came and I told her that I was going to fight it (I had very little idea what I was doing, I had no representation with me, but I had done some homework about radar and potential problems in the area I was cited) and she agreed to make it a non-moving violation (tail light out), confirming with the cop if he was alright with this, if I plead "no contest" prior to my case ever being called. I considered myself quite lucky since I did not have to do anything really and only got hit with $120 in fine and court costs with just one non-moving violation. > I'm afraid that the mandatory appearance means bad things... am I wrong? No, it typically results whenever the speeding ticket exceeds a certain prescribed amount (say more than 20mph over the posted speed) or you have had a certain number of moving violations (points). YMMV and I am not a lawyer. Good luck though. Later, Rich ************************************************************* List Commands UNSUBSCRIBE - (in subject line) unsubscribes you from the mailing list. DIR - sends a listing of files available in the list's GET directory. GET filename1.ext,filename2.ext - sends the requested file(s). To issue a command/request to the server: Send a message with the command you wish executed as the subject of the message to the email address e36m3@bmw-m.net. *************************************************************
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#6. Tire comparison - from Joe Dyer
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Date: Thu, 25 Apr 2002 14:38:56 -0700 From: "Joe Dyer" <joedyer@attbi.com> Subject: Tire comparison Has anybody out there formed an opinion about the features of the EXSTA = 700 verses the VICTORACER 700? Are they any better? Stickier? Longer = lasting? I see they are about identical in price. Is Kumho closing out the = Victoracer line? Joe Dyer
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#7. Re: [E36M3] Tire comparison - from Mark Radelow
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Date: Fri, 26 Apr 2002 01:28:25 +0000 From: "Mark Radelow" <radelow@hotmail.com> Subject: Re: [E36M3] Tire comparison The Escta is Kumho's answer to the Hoosiers. It has more grip but lasts less than the Victoracer. There are a few more traits such as stiffer sidewall. Also a comparable sized Escta has a wider tread than a comparable size Victoracer. The Victoracer is not being phased out or replaced. Mark From: "Joe Dyer" <joedyer@attbi.com> Reply-To: "Joe Dyer" <joedyer@attbi.com> To: E36M3 <e36m3@bmw-m.net> Subject: [E36M3] Tire comparison Date: Thu, 25 Apr 2002 20:15:14 -0500 Date: Thu, 25 Apr 2002 14:38:56 -0700 From: "Joe Dyer" <joedyer@attbi.com> Subject: Tire comparison Has anybody out there formed an opinion about the features of the EXSTA = 700 verses the VICTORACER 700? Are they any better? Stickier? Longer = lasting? I see they are about identical in price. Is Kumho closing out the = Victoracer line? Joe Dyer ************************************************************* List Commands UNSUBSCRIBE - (in subject line) unsubscribes you from the mailing list. DIR - sends a listing of files available in the list's GET directory. GET filename1.ext,filename2.ext - sends the requested file(s). To issue a command/request to the server: Send a message with the command you wish executed as the subject of the message to the email address e36m3@bmw-m.net. ************************************************************* _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx
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#8. Re: [E36M3] Tire comparison - from Jim Bassett
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Date: Thu, 25 Apr 2002 18:45:19 -0700 From: Jim Bassett <jimbassett@attbi.com> Subject: Re: [E36M3] Tire comparison At 06:15 PM 4/25/02, Joe Dyer wrote: >Has anybody out there formed an opinion about the features of the EXSTA = >700 verses the VICTORACER 700? Are they any better? Define "better"? :-) >Stickier? Yes. >Longer = >lasting? Remains to be seen, but I'm guessing not. I'm running the Ecsta's on the race car, after having switched from the Victoracers. The Ecsta's are definitely stickier than the Victoracers. For me, the rest of the evaluation is still being worked on. They seem to be somewhat more particular about tire pressure. I've only really run them at Sears (shortened course) and Buttonwillow (where I had other difficulties, and thus don't really trust my tire observations). Next race is Thunderhill in 2 weeks, hopefully I'll have better feedback. But so far, I (tenatively) like them better than the Victoracers. Hope that helps, Jim Bassett
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#9. Cam chain clacking? - from klein@robinsonad.com
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Date: Thu, 25 Apr 2002 21:41:31 -0500 From: klein@robinsonad.com Subject: Cam chain clacking? "Again, I seek wisdom from the list." "You have chosen. . .wisely." Hello, all- A moment ago I was listening to what sounds have changed in my engine bay and I've pinpointed a loud clacking from the cover right above the cam chain, between the VANOS and exhaust sprockets. Goose the throttle at the throttle body and release, and while the revs drop, it sounds like the chain hitting the inside of the cover. Is it time to replace the tensioner? If so, who recommends what source, and is it correct that I'll want to get a '96-'98 unit? (11/95 build M3). I would also appreciate recommendations for sourcing RTB's, Control arms, CA bushings and rear RSM's. I'm also putting plans in line for new shocks, retaining the stock springs and ride height since I practically have to get out and push the car over a speed bump about 300' from my father's front door. I'll be scanning the archives (since this is a robust topic), but I would appreciate your insights for a basically stock car. Off list is welcome since multiple threads on this subject are active. The car is a daily commuter and (sniff) I've no plans for auto-x or track in the near future =?( . I'm on that slippery slope with my ZX-9 right now. ;?P Thank you, Steve '95 M3 - Dodgy handling and noises from dodging potholes
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#10. RE: [E36M3] Speeding Ticket Advice? - from Zack Steinkamp
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Date: Thu, 25 Apr 2002 19:33:05 -0700 (PDT) From: Zack Steinkamp <edsarkiss@yahoo.com> Subject: RE: [E36M3] Speeding Ticket Advice? --- "Dames, Mark" <Mark.Dames@PDO.Co.Santa-Clara.CA.US> wrote: > When they jerk with you, jerk back! he was doing nearly 70 in a 40 ... that's just irresponsible and very dangerous. i think the police are being *lenient* when they don't arrest people who speed like this. what if a car pulled out of a driveway, or a bicyclist lost control, or a kid ran into the street? even in a car with as good of brakes as an M3, a non-incident turns into a very serious one with this kind of speed. i'm sorry i don't recall who got the ticket, but you should be thankful that you only have a fine and increased insurance rates to deal with, rather than trying to find Johnny Cochrain's phone number. zs