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#1. Progressive springs, observed vs. actual testing - from TFRM3@aol.com
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Date: Wed, 24 Apr 2002 14:22:31 EDT From: TFRM3@aol.com Subject: Progressive springs, observed vs. actual testing "I hate to contradict Jay, but stock springs are most obviously progressive. Both in coil diameter and the winding radius (aka barrel shaped)." No problem with contradicting me. You are neither the first or the last. You are using words describing how a spring LOOKS progressive to an observer. Looking at it in 2 dimensions, so to speak. I recommend you put the spring in an high quality spring rate checker, seriously anything under $700-$1000 might as well be Suzy Homemaker, and check the spring rate of the *loaded height*, and through the range of travel of the suspension, not the spring. You will find that it is very linear *in the range of travel that is used on the car*. Honest. Jay Morris WTB: 1969 Mustang Mach 1
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#2. [E36M3] Da Lan hitch For Sale - from Wayne Miller
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Date: Wed, 24 Apr 2002 14:23:53 -0400 From: "Wayne Miller" <m3@waynemiller.com> Subject: [E36M3] Da Lan hitch For Sale As a frame of reference, I bought my DaLan hitch from www.hitchweb.com and the price there is now $221. -Wayne -----Original Message----- From: Rob Verenna [mailto:rob@willraceforbeer.com] Sent: Wednesday, April 24, 2002 11:45 AM To: E36M3 Subject: [E36M3] Da Lan hitch For Sale Date: Wed, 24 Apr 2002 11:36:23 -0400 From: "Rob Verenna" <rob@willraceforbeer.com> Subject: Da Lan hitch For Sale With all the talk of little trailers on here recently, I thought someone might be interested in the Da'Lan hitch I pulled off the 325i I'm turning into a race car. $100 + shipping from 15217. - rob
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#3. Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG - from kit wetzler
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Date: Wed, 24 Apr 2002 11:25:35 -0700 From: "kit wetzler" <kitwetzler@mindspring.com> Subject: Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG > My Koni SAs are nowhere near the bump stops with stock springs. I actually > trimmed the stops 1" for good measure before installing H&R Stage 2/4 > springs, but that was mostly a gesture of sympathy to my Bilstein friends. I ran H&R sports with Koni single adjustables, and I trimmed the stock bump stops about an inch. The car hit the stops so badly during the zip tie test that the tie ended up about halfway through the bumpstop. put a tie wrap around the shock shaft, and drive around and see how far that tie wrap ends up in the bumpstop. it's scary. > Than your hypothesis is that some shocks (Bilstein? Koni SA? DA?) are > over-dampened for H&R Sport (Stage 2) springs but are just about perfectly > matched to H&R coilover (Stage 4) springs? > Right? Nope. I'm saying that the H&R sports are too soft for the M3 in general. > significantly different rates, than either TC's TrackLine kit or your H&R > coil-over kit would ride like crap. The trackline kit does ride like crap. :) the rear springs are pretty much the same, but the coilovers have a much stiffer spring. My car with H&R coilovers is much more comfortable than the H&R sports +konis. > My understand of progressive springs is that they stay progressive > throughout the compression range. But I could be wrong on that (see the > amateur suspension tinkerer disclaimer above). Remember, a spring is progressive by nature, a linear 100 lb/in spring takes 100 lbs to compress 1 inch, 200 lbs for the second inch, etc. Most progressive springs are better thought of as dual rate springs. the stock springs are a good example of this... they are progressive for the first part, and then they are essentially linear rate through the rest of the real travel. -kit
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#4. spring rates - from kit wetzler
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Date: Wed, 24 Apr 2002 11:43:41 -0700 From: "kit wetzler" <kitwetzler@mindspring.com> Subject: spring rates > Well, there are a few things working here. First of all, a stiffer rear would > give more oversteer...so it would make the car more neutral. heh. Ok, remember here that every rice boy and his mom could possibly buy these off the shelf kits. Why would the rear spring rate increase disproportionately to the fronts? you'd think this would be some sort of automotive darwinism, right? The fronts are designed to ride the bump stop. go into a hard corner and your front spring rate goes to basically infinity (bumpstop) and you get terminal (but safe) understeer. No soccer moms or Wanna-Be-NASCAR-drivers doing spins off into the bushes... That's why the H&R coilovers ride so well. they are stiff enough to keep the car off the stops. -kit
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#5. Re: [E36M3] Progressive springs, observed vs. actual testing - from nabli@earthlink.net
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Date: Wed, 24 Apr 2002 14:55:18 -0400 From: <nabli@earthlink.net> Subject: Re: [E36M3] Progressive springs, observed vs. actual testing ----- Original Message ----- From: <TFRM3@aol.com> To: "E36M3" <e36m3@bmw-m.net> Sent: Wednesday, April 24, 2002 2:25 PM Subject: [E36M3] Progressive springs, observed vs. actual testing > Date: Wed, 24 Apr 2002 14:22:31 EDT > From: TFRM3@aol.com > Subject: Progressive springs, observed vs. actual testing > > "I hate to contradict Jay, but stock springs are most obviously progressive. > Both in coil diameter and the winding radius (aka barrel shaped)." > No problem with contradicting me. You are neither the first or the last. > You are using words describing how a spring LOOKS progressive to an observer. > Looking at it in 2 dimensions, so to speak. > I recommend you put the spring in an high quality spring rate checker, > seriously anything under $700-$1000 might as well be Suzy Homemaker, and > check the spring rate of the *loaded height*, and through the range of travel > of the suspension, not the spring. You will find that it is very linear *in > the range of travel that is used on the car*. Honest. > Jay Morris > WTB: 1969 Mustang Mach 1 Far be it for me not to jump on this bandwagon! :-) I really really hate to contradict Jay but wouldn't a 1969 Boss 302 be a better choice? Those Windsor heads breathe through straws! LOL! Cheers, Jim E.
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#6. [E36M3] Re:Racing shoes and gloves - from Dinah DeRoller
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Date: Wed, 24 Apr 2002 14:55:20 -0400 From: Dinah DeRoller <dinah_g_deroller@redcom.com> Subject: [E36M3] Re:Racing shoes and gloves Wayne, HMS Motorsports sets up in one of the garage bays at The Glen during GVC BMWCCA events. Joe Marko and his crew bring along a slew of goodies to view, try, and buy, including helmets, gloves, shoes, and go-fast car parts. You might want to try some things on there before deciding. Also, Gary Moore of TSX Sport sets up a trailer (he provides the T-shirts) with various articles of racing/driving oriented clothing, including gloves, shoes, stickers, etc. Oh, and coffee! Just as an FYI, I find the grip of racing gloves to be less than that of my bare hands, something I am trying to get used to. However they are very nice on those cold Upstate NY mornings. Dinah - Have long since fallen down the slippery slope and can't get up. No affiliation with either, just a customer. From: "Wayne Miller" <m3@waynemiller.com> > > Now that I am a good ways down the slippery slope on being addicted to > track, I have decided to purchase racing shoes and gloves before Watkins > Glen in May. Does anyone have any recommendations?
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#7. Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG - from Chester Wong
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Date: Wed, 24 Apr 2002 12:01:12 -0700 (PDT) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG > Remember, a spring is progressive by nature, a linear 100 lb/in spring takes > 100 lbs to compress 1 inch, 200 lbs for the second inch, etc. Most > progressive springs are better thought of as dual rate springs. the stock > springs are a good example of this... they are progressive for the first > part, and then they are essentially linear rate through the rest of the real > travel. Huh? How is 100# to compress 1 inch and 200 pounds to compress 2 inches progressive? F=kx where k is the spring rate and x is the displacement. That is a linear equation. If k changed as a function of x (progressive rate spring), the equation would not be linear. Chester ===== __________________________________________________ Do You Yahoo!? Yahoo! Games - play chess, backgammon, pool and more http://games.yahoo.com/
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#8. RE: cloth seats - from Chip Mitchell
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Date: Wed, 24 Apr 2002 16:33:44 -0400 From: "Chip Mitchell" <chipm@arches.uga.edu> Subject: RE: cloth seats I seem to remember that you could order BMW upholstry by the yard from the dealer. Does this apply to the motorsport cloth patterns on Matt's page? ChipM "Rich, I think this is exactly what you're looking for. http://www.tripledistilled.com/cloth.htm Thanks to Matt Malfa of UUC for the webpage. BTW, the 94 M-Technic has a different interior than the LTW. The M-technic had fake-suede bolsters, as well as non-leather "standard" E36 M3s. The LTW interior is all cloth, no hints of suede or near-suede. The bolsters, headrests were in black cloth that was actually quite slippery. Kinda neoprene-ish. How ironic for a near-racer. -Alan"
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#9. Re: [E36M3] Deal's Gap - spin - from Wen Liew
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Date: Wed, 24 Apr 2002 14:02:12 -0700 From: "Wen Liew" <wwliew@hotmail.com> Subject: Re: [E36M3] Deal's Gap - spin >Date: Wed, 24 Apr 2002 08:13:51 -0700 (PDT) >From: Robert Liu <bob_a_liu@yahoo.com> >Subject: [E36M3] Deal's Gap - spin > > >http://www.altechcorp.com/Z3/Movies/Untitled.wmv > You could have told us how long the video was. I just had lunch and almost threw up on my keyboard <j/k> ;) Glad you're safe. Wen _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com
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#10. Re: [E36M3] Progressive springs, observed vs. actual testing - from alex.fadeev@verizon.com
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Date: Wed, 24 Apr 2002 16:10:29 -0500 From: alex.fadeev@verizon.com Subject: Re: [E36M3] Progressive springs, observed vs. actual testing TFRM3@aol.com wrote: > > "I hate to contradict Jay, but stock springs are most obviously progressive. > Both in coil diameter and the winding radius (aka barrel shaped)." > No problem with contradicting me. You are neither the first or the last. > You are using words describing how a spring LOOKS progressive to an observer. > Looking at it in 2 dimensions, so to speak. > I recommend you put the spring in an high quality spring rate checker, > seriously anything under $700-$1000 might as well be Suzy Homemaker, and > check the spring rate of the *loaded height*, and through the range of travel > of the suspension, not the spring. You will find that it is very linear *in > the range of travel that is used on the car*. Honest. Jay, I stand corrected. And promise to give up rationalizing and comparing spring rates ;-) alex f