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#1. Re: Short Springs - from Paul England
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Date: Thu, 15 Feb 2001 19:16:42 -0500 From: "Paul England" <ettsn@mindspring.com> Subject: Re: Short Springs You can also use Safety Wire to attach the last coil to the perch. Might require drilling a couple small holes though. Seen it done on racecars before, but not an M3 yet. -Paul > > | From: "Greg Cernosek" <gcernosek@inetx.com> > > | Subject: Are you running short springs in the back? > > | I am about to install my Ground Control coil-over setup. I am curious, > > what > > | is the popular method for preventing short springs from falling off their > > | perches when you jack the car up? One of my buddies has used a special > > | spring for this purpose. It is supposed to have zero rate (won't affect > > | spring rate) and be only 1/4" tall when fully compressed. The down side
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#2. Re: Work in Progress - from Ron Buchalski
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Date: Fri, 16 Feb 2001 01:28:03 From: "Ron Buchalski" <rbuchals@hotmail.com> Subject: Re: Work in Progress Ron, Okay, so using the Tire Rack numbers: rev min 1 mi 1 7000 --- * 60 --- * ------- * ----- = 157.2 mi/hr min hr 848 rev 3.15 So, an 'hypothetically' indicated 160 isn't that far off! But are Tire Rack's numbers for an _unloaded_ tire? At zero mph? Assuming that the tire did "grow" 2%, the speed would in fact be 160.3 mph. 2% growth could even be caused by heating of the air inside the tire, couldn't it? By the way, does anyone know why the speedometer indicator and the OBC speed indicator aren't the same? Granted, they only differ by a few mph, but since they're both electronic gauges, and they're both deriving their input from the same pulse counter in the rear diff, shouldn't they indicate EXACTLY the same speed? -rb (Geez, talk about being 'anal' about a topic.... ;-) ) >Date: Thu, 15 Feb 2001 18:19:08 -0500 >From: Ron Katona <rkatona@bellatlantic.net> >Subject: Re: Work in Progress > > >That would work, but I _imagine_ I' be too scared sh*tless at 160 to >look down at the OBC to find the button to reset the speed indicator. > >But Ron, I don't think a US '95 M3 will get to 160 with the stock tire >sizes and stock gearing unless the tires grow at speed. I think you're >looking at ~157 at 7000 rpm. That's using Tire Rack's specs for a 235/40-17 >MXX3 (848 rev's/mile), a 3.15 rear, and a 1:1 5th gear. Should red line at >157 ignoring tire growth. I'd say anything over 160 on the speedo was >wishful indicating. >-- >Ron Katona _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com
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#3. Re: camera mount - from TiJaWill@aol.com
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Date: Thu, 15 Feb 2001 20:39:47 EST From: TiJaWill@aol.com Subject: Re: camera mount The video of Sears Point that Peter, John, and Jim did looked good. I was about to order a harness bar and camera mount for the bar from I/O port racing. I didn't realize the Hama suction mount would work attached to the rear glass. Does anyone care to comment on the rear glass mount vs harness bar mount? Tim Williams
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#4. Short Rear End Ratios - from LoweSeaton@aol.com
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Date: Thu, 15 Feb 2001 20:48:26 EST From: LoweSeaton@aol.com Subject: Short Rear End Ratios Rob writes: > You hit the nail on the head when you said "And frequent upshifts." This may get me black listed for not driving my M3 hard enough. But when I am driving easy (average speed on my commute home tonight was 16 mph!), I often just shift 1-3-5 or sometimes 1-2-5 or even just 1-5. I'm not setting any acceleration records when I do this. I'm not even using 5% throttle. You guys with short rear end ratios could certainly skip a gear or two. Wayne - with a 3.73 rear end, I would just start out in 2nd most of the time. As long as you are not using a lot of throttle, you won't lug the engine. It will save some shifting. Lowell Seaton '95 M3
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#5. Re: [E36M3] Re: Work in Progress - from LoweSeaton@aol.com
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Date: Thu, 15 Feb 2001 21:45:40 EST From: LoweSeaton@aol.com Subject: Re: [E36M3] Re: Work in Progress Ron asks: > how would I determine the actual top speed? Ah! A math question I can answer. You could use your tachometer. Just multiply the engine speed by the distance traveled per engine revolution. One formula is thus: RPM x (60 min / 1 hr) x rear wheel diameter (in) x Pi / rear end ratio / transmission ratio x (1 mile / 63360 in) = miles per hour The only unknown is the size of your rear wheels. To determine the diameter of your rear wheels in inches: section width (mm) x aspect ratio x 2 / 25.4 (mm/in) + rim diameter (in) For a 235/40-17 tire - diameter = 235 x 0.4 x 2 / 25.4 + 17 = 24.40 inches For a 245/40-17 tire - diameter = 24.72 inches For a 235/45-17 tire - diameter = 25.33 inches I can easily hit 7,200 rpm with my '95 M3 Euro HFM/JC chip in 5th gear. [Yes, I know Jim Conforti says NONE of his public consumption chips have a redline higher than 7,000 rpm but my tach hits 7,200 rpm in every gear.] The '95 manual rear end ratio = 3.15 and 5th gear = 1.00 I am running Toyo F1S 235/45-17 tires. So doing the math, I get a calculated top speed of - drum roll please - 7,200 x 60 x 25.33 x 3.1416 / 3.15 / 63360 = 172 MPH Now before anybody lambastes me, I don't think my M3 can travel 172 mph under its own power. There is something wrong with my formula. I don't think the rolling diameter of a tire can be calculated from the sidewall markings. Your tires flatten out under the weight of the car. I don't know what the real rolling diameter is. I'd guess about 24 inches. That would put my top speed at 163 mph. More believable. Or maybe I have the fastest M3 in America? <vbg> Lowell Seaton '95 M3 Dallas, Texas
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#6. Re: [E36M3] Are you running short springs in the back? - from Ron Katona
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Date: Thu, 15 Feb 2001 21:49:58 -0500 From: Ron Katona <rkatona@bellatlantic.net> Subject: Re: [E36M3] Are you running short springs in the back? Jim Powell wrote: > Ok. This is getting to the point of being a disservice. Has anyone ever had a > damper fail? Come on, show of hands. I mean it. If you lose the seal on a > damper then the suspension will go to full droop in a hurry. Nah, both shocks have to fail because there's still the sway bar. Or one shock and the sway bar have to go. In either case, I hope the driver is savvy enough to notice there's a problem and stop driving at 10/10ths. Understand that the shortest spring Jay at GC usually recommends (6") barely falls out when _both_ wheels are at absolute full droop and the spring perch is run down fairly low. I think maybe I gave the impression that they fall out easily under all circumstances or something - they don't. > Would everyone in California who does this please place a bumper sticker on their > car for my benefit that says I CUT CORNERS KEEP BACK 500 FEET. It all depends on spring rate, length, and ride height. In some cases the springs can't fall out making the helpers unnecessary. In others you can't use the helpers because they add back too much ride height. Nothing to do with cutting corners. > I don't like driving next to people who don't do things right or bleed their > brakes. If you can't keep your car at 100% I really don't want you around me at > 100+ MPH. I agree, but there's so little chance of these springs coming loose that it's no more dangerous to others around us than say... you or I running antifreeze rather than pure water (to avoid the slick when we blow a hose). None of our street cars are 100% safe or prepared for track work and I think you're overestimating the danger of this setup. I still recommend that he use the helpers if he can because it's easier. And anything that give s you peace of mind at the track is a bonus, so even better. It's just not negligence if he doesn't. -- Ron Katona
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#7. RE: [E36M3] VIR march 10th - from Tom Tice
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Date: Thu, 15 Feb 2001 22:00:09 -0500 From: "Tom Tice" <tetice@triad.rr.com> Subject: RE: [E36M3] VIR march 10th Hi Jonathan, I'll be there among the 190+ cars (students & instructors). It should be fun as this school uses the full course at VIR (all 3.27 miles of it). Don't sweat it, we always welcome virgins ;). You'll have blast! Tom Tice '98 M3/4 '99 540/6 Greensboro > > > Date: Thu, 15 Feb 2001 08:34:05 -0500 > From: "Jonathan Evans" <jonathanevans@hotmail.com> > Subject: VIR march 10th > > I read someone mentioned going, but anyone else going to be there? I'm a > track virgin looking for encouragement. > > Jonathan Evans > 95 m3 > Raleigh > > >
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#8. Re: [E36M3] Re:torque rotation - from LoweSeaton@aol.com
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Date: Thu, 15 Feb 2001 22:36:18 EST From: LoweSeaton@aol.com Subject: Re: [E36M3] Re:torque rotation I was going to suggest worn out shocks but with just 23K, that is not too likely. IMHO, I don't think the stock OEM shocks/struts are good for much more than 30K so you could have a set of exceedingly bad shocks. More likely is your tire mismatch. You may want to get different rear tires. The Michelins and Toyos have different handling characteristics such as slip angles, etc. They apparently are a really bad match. For future reference, it is always best to have all four tires match. It would have been best if you could have gotten 2 new Michelin MXX3 for the rear. Mixing tire brands and even mixing different types of the same brand can cause problems. Sorry. Lowell Seaton '95 M3 - Loved the Michelin Pilot SX MXX3 - would still be using it if it was available Dallas, Texas
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#9. Fw: M3 Rear Speakers - from Paul Elliott
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Date: Thu, 15 Feb 2001 22:48:48 -0500 From: "Paul Elliott" <pelliott@rcn.com> Subject: Fw: M3 Rear Speakers I believe theyre called size '4T'. Crutchfield has a few only in this size....Why dont you chuck them and replace them with some Stealthboxes...Or, if you want, I did just that, and consequently have a pair of stock rears someone can buy very inexpensively, if interested. _____________________ Paul Elliott '99 Alpine White M3 <25000 mi Forged M dbl-spokes; Rotex pads; Dinan Stage II Supercharger; Stygar Short Shift kit and Clutch Stop; Skaggs Pedals; X-brace; Sound by Kenwood Excelon, Polk, JL Audio -----Original Message----- From: Paul Elliott <pelliott@rcn.com> To: seanh_race@hotmail.com <seanh_race@hotmail.com> Date: Thursday, February 15, 2001 10:47 PM Subject: M3 Rear Speakers > >>Hi Gang, >> >> Can someone please tell me the size of the rear speakers on a 96 M3? > >4 inches. and a tweeter. > > >I believe theyre called size '4T'. Crutchfield has a few only in this >size....Why dont you chuck them and replace them with some >Stealthboxes...Or, if you want, I did just that, and consequently have a >pair of stock rears someone can buy very inexpensively, if interested. >_____________________ >Paul Elliott >'99 Alpine White M3 <25000 mi Forged M dbl-spokes; Rotex pads; Dinan Stage >II Supercharger; Stygar Short Shift kit and Clutch Stop; Skaggs Pedals; >X-brace; Sound by Kenwood Excelon, Polk, JL Audio > >
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#10. Re: [E36M3] Re: Work in Progress - from Bora Akyol
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Date: Thu, 15 Feb 2001 20:02:38 -0800 From: Bora Akyol <akyol@akyol.org> Subject: Re: [E36M3] Re: Work in Progress I don't think an M3 even with EuroHFM has enough power to hit 172 mph. Corvette LS1's can barely hit 172 mph. Remember that drag increases something like quadratically with speed. Bora > From: LoweSeaton@aol.com > Reply-To: LoweSeaton@aol.com > Date: Thu, 15 Feb 2001 20:47:38 -0600 > To: E36M3 <e36m3@bmw-m.net> > Subject: Re: [E36M3] Re: Work in Progress > > Date: Thu, 15 Feb 2001 21:45:40 EST > From: LoweSeaton@aol.com > Subject: Re: [E36M3] Re: Work in Progress > > Ron asks: > >> how would I determine the actual top speed? > > Ah! A math question I can answer. You could use your tachometer. Just > multiply the engine speed by the distance traveled per engine revolution. > One formula is thus: > > RPM x (60 min / 1 hr) x rear wheel diameter (in) x Pi / rear end ratio / > transmission ratio x (1 mile / 63360 in) = miles per hour > > The only unknown is the size of your rear wheels. To determine the diameter > of your rear wheels in inches: > > section width (mm) x aspect ratio x 2 / 25.4 (mm/in) + rim diameter (in) > > For a 235/40-17 tire - diameter = 235 x 0.4 x 2 / 25.4 + 17 = 24.40 inches > For a 245/40-17 tire - diameter = 24.72 inches > For a 235/45-17 tire - diameter = 25.33 inches > > I can easily hit 7,200 rpm with my '95 M3 Euro HFM/JC chip in 5th gear. > [Yes, I know Jim Conforti says NONE of his public consumption chips have a > redline higher than 7,000 rpm but my tach hits 7,200 rpm in every gear.] The > '95 manual rear end ratio = 3.15 and 5th gear = 1.00 I am running Toyo F1S > 235/45-17 tires. So doing the math, I get a calculated top speed of - drum > roll please - > > 7,200 x 60 x 25.33 x 3.1416 / 3.15 / 63360 = 172 MPH > > Now before anybody lambastes me, I don't think my M3 can travel 172 mph under > its own power. There is something wrong with my formula. I don't think the > rolling diameter of a tire can be calculated from the sidewall markings. > Your tires flatten out under the weight of the car. I don't know what the > real rolling diameter is. I'd guess about 24 inches. That would put my top > speed at 163 mph. More believable. Or maybe I have the fastest M3 in > America? <vbg> > > Lowell Seaton > '95 M3 > Dallas, Texas > > > ************************************************************* > 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. > ************************************************************* > >