[uucdigest] Tuesday, February 22 2000 Volume 03 : Number 314 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | For all available Digest commands including unsubscribe/subscribe, | visit the BMW UUC Digest page: http://www.uucdigest.com | Send SUBMISSIONS to [EMAIL PROTECTED] | Complaints? Send 'em to [EMAIL PROTECTED] if you must. | Visit http://www.bubbaclub.com | www.bimmers.com - "serving enthusiasts on the 'net" | Visit http://www.bimmer.org - ultimate BMW bulletin boards! | Subscribe to the Zionsville Autosport Parts Digest: | http://www.zionsvilleautosport.com/majordomo.htm ����������������������������������������� In this BMW UUC Digest: [uuc] wrecked 95Ti [uuc] Let's cut ! [uuc] re: e46 m3 images [uuc] Helmet question [uuc] What's with the newer BMW's Re: [uuc] FW: E46 M3 [uuc] Handling dynamics Re: [uuc] <OT> When Spelling Does Count (was Driving/Shifting question) RE: [uuc] <M20> Exhaust manifold stud problem [uuc] RE: FWD handling [uuc] Jim C. @ Curry's Auto Re: [uuc] BMW NA's Response to "BMW Individual - Available or No?" Re: [uuc] My first driver's school Re: [uuc] Weight Transfer cont... ---------------------------------------------------------------------- Date: Tue, 22 Feb 2000 19:44:45 -0600 From: Ken Oliver <[EMAIL PROTECTED]> Subject: [uuc] wrecked 95Ti I need some guidance. On friday the 18th I bought a 95Ti for my wife. I bought the car from a dealer(not BMW). Car had 50,251 miles. I contacted a friend who works as a mechanic at a BMW dealer. He looked up the VIN number and discovered it had an extended warranty because it was a demo. Warranty expires today the 22nd, so I took the car in for warranty work. About 10:00AM he called me to ask if I knew the car had been in a wreck with 10-12 thousand dollars damage. I did not. The dealer I bought the car from did not tell me about the damage. I really think the dealer knew, but did not tell me. I believe this is a violation of the law. What do I do now? I really feel that I have been screwed. Whoever fixed the car did a very fine job and the car drives and looks great. ????????? rugger ------------------------------ Date: Tue, 22 Feb 2000 20:57:49 -0500 From: "Duane Collie" <[EMAIL PROTECTED]> Subject: [uuc] Let's cut ! >Then looking at the price of rim halves from BBS I decided against that and >looked to the cut and weld option, I could only find one place in the >country that would do it, price $165/ea. Is this a wise option, or should I >just keep looking for the exact wheel I want? Oh wow. Is this not, like...the scariest thing EVER you could do to a set of wheels? This should have a D.O.T. placard branded into the side of the car saying: W:A:R:N:I:N:G - RIDE AT YOUR OWN RISK AS DRIVER GOT A CASE OF THE CHEAPS. Robert, you know the correct solution from talking to BBS, you really aren't gonna do this, are you? How true are these cut and welded wheels going to be? What's the structual stress changes? Wheels fail (even BBS) at the track without being modified. Reminds me of a pal of mine in Delray Beach, FL who had an old Corvair coupe. He wanted a convertible Corvair in the worst way. So one day, after we'd been hammering beers on the beach all day, we got a Sawsall and converted the poor coupe in his driveway. Did it all in one evening. Funny thing though, the car was never quite right after that..... - -Duane Collie The Seven Sled ------------------------------ Date: Tue, 22 Feb 2000 20:49:10 -0500 From: Rich Beebe <[EMAIL PROTECTED]> Subject: [uuc] re: e46 m3 images VincentMathew Malfa wrote: > Can anybody see where the red on the tach starts? I know what seriously fun > number it looks like to me at 1024x768, but I would hate to be an alarmist > <g>... > Matt M. looks like a 9 grand tach to me, with redline starting at 8. rich ------------------------------ Date: Tue, 22 Feb 2000 21:15:03 -0500 From: "Rob Levinson - UUC Motorwerks" <[EMAIL PROTECTED]> Subject: [uuc] Helmet question I saw a really cool helmet in a movie shot in Europe so I'm not sure this kind is available or legal in the US as I've never seen one before... It was a full-face helmet except the entire front including the chin part could swivel up. Looked like the best of both worlds - full protection and you could eat an ice cream cone without taking it off. Anybody know what companies make such helmets? Any downside (less effectiveness)? - - Rob ------------------------------ Date: Tue, 22 Feb 2000 18:16:19 -0800 From: "KKiely" <[EMAIL PROTECTED]> Subject: [uuc] What's with the newer BMW's Guys, The pictures of the E46 while enticing bring up a question that has been lingering (bouncing around?) my noggin for a while. Does it seem that the newer models have the back ends of the motors pushed into inaccessable areas under the firewall? These cars look like they're going to be a royal pain in the ol' arse to work on. Granted valves will probably be hydraulic, one issue solved, but what about starters, rear valve cover nuts, etc.? - -Kevin ------------------------------ Date: Wed, 23 Feb 2000 02:29:33 +0000 From: Rick Weiss <[EMAIL PROTECTED]> Subject: Re: [uuc] FW: E46 M3 Timothy Taylor wrote: > Looks great, but those vents on the side look superfluous. I like 'em > on the Z3 and M Coupe though. So, I'm a hypocrite. Get over it. Sometimes I worry that BMW is catching a disease that affects GM bigtime: GM makes a sports version of a model by adding doodads, louvers, vents, plastic skirts, fancy seat stitching/coloring, spoilers etc etc. All of these really do nothing for the performance of the vehicle. But somehow GM thinks that's what separates a normal car from a performance car. BMW has added side vents and quad exhaust pipes the M3 (and M5 and Z3M). Do those increase performance? Or are they playing GM's game? - --rickw 95 M3 90 Prelude (waiting for the M5 lightweight :) PS maybe I'm missing it... maybe GM isn't really in the performance market. Maybe "style" sells. Maybe that's what BMW has recognized. ------------------------------ Date: Tue, 22 Feb 2000 18:21:03 -0800 From: "KKiely" <[EMAIL PROTECTED]> Subject: [uuc] Handling dynamics Luis, Gary is talking Force Distribution and dynamics. Not static weight distribution. - -Kevin ------------------------------ Date: Tue, 22 Feb 2000 21:22:32 -0500 From: "Rob Levinson - UUC Motorwerks" <[EMAIL PROTECTED]> Subject: Re: [uuc] <OT> When Spelling Does Count (was Driving/Shifting question) And it's brake "peddle", right? Yeah, that annoys me too. - - Rob - ----- Original Message ----- From: Scott D Miller <[EMAIL PROTECTED]> Subject: [uuc] <OT> When Spelling Does Count (was Driving/Shifting question) > When you're doing 110 down the front straight and you have to slow down for > the turn, if you don't BRAKE, you'll end up rolling the car or bashing the > wall, or in other words, you BREAK, which is not the desired outcome. <snip>> Scott Miller > Had an '87 325is break at Sears Point Turn 10 once maybe because of not > enough brake? > GGC BMW CCA #44977 ------------------------------ Date: Tue, 22 Feb 2000 21:27:05 -0500 From: "Karl Zemlin" <[EMAIL PROTECTED]> Subject: RE: [uuc] <M20> Exhaust manifold stud problem As a machinist and mechanical engineer with 15+ years in machinery, I have to agree 125%. Aluminum soaks up heat BIG time when welded. The head would almost certainly warp and need to be remachined, and the heat effected zone around the weld would be softer than the original base metal. A helicoil is significantly stronger than the original thread, requires no heat, and (if careful) can be installed with the head on the engine. If there is enough meat there to install an insert, don't even THINK about welding! Karl Zemlin P.E. [EMAIL PROTECTED] BMWCCA 82366 Indianapolis '84 528e 5 spd, 210,000 miles - RIP 01/08/97 Never used for endurance racing. '85 735ia, 226,000 miles - RIP 02/07/00 '85 535i 5 spd, 171,000 miles Maybe I'll get to drive this one 'til it's old. '97 Camry - mama's transportation appliance > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Gary Derian > Sent: Tuesday, February 22, 2000 9:02 AM > To: [EMAIL PROTECTED] > Subject: Re: [uuc] <M20> Exhaust manifold stud problem > > > A Helicoil is a stronger thread than the base aluminum. If you were going > endurance racing, I would recommend that ALL the exhaust bolt holes be > upgraded to helicoils. Many critical and high stress threaded joints in > soft materials like aluminum are helicoiled as an original design. There > are other threaded inserts like the TineCert or KeyCert (sp?) that are > stronger but they take up more room and may not fit. > > Gary Derian <[EMAIL PROTECTED]> > > > > Actually the _correct_ way to fix this kind of booboo > <technical term> is > to > > weld in new material with similar properties (ideally the same material) > and > > tap the filled hole to original spec. The precautions here with an > aluminum > > head are: 1.) Watch proximity to the deck surface that you don't warp it > the > > sealing face; 2.) Be extremely careful that the new hole gets tapped > square > > to the surface. > > > > On an exhaust manifold the latter isn't so critical but on a cam bearing > > tower this is absolutely essential to normal cam wear and performance. > > > > Alternately, a TimeSert or even a helicoil is a reasonable quick-fix, > > provided you aren't going endurance racing. > > > > $0.02 > > > > tiAn > > 94 325i w/stuff > > > > > > ----- Original Message ----- > > From: Cagann, Alexander <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Monday, February 21, 2000 3:38 PM > > Subject: RE: [uuc] <M20> Exhaust manifold stud problem > > > > > > > Houston we have a problem. The 525e needed a new downpipe and > > > my mechanic had a > > > devil of a job getting the exhaust manifold off, one of the > > > studs broke leaving > > > most of itself in the block! > > > > I would timecert a new stud, AT THEIR EXPENSE. What are they going to > > weld??? Seems like a half-assed way to do it. This area has, of course, > > extreme heat...and with that, extreme temperature changes...and quickly. > I > > would repair this the correct way. > > > > Alex Cagann > > 88///M5 > > > > > ------------------------------ Date: Tue, 22 Feb 2000 18:36:22 -0800 (PST) From: John Bolhuis <[EMAIL PROTECTED]> Subject: [uuc] RE: FWD handling On Wed, 23 Feb 2000, Thomas, Andrew j wrote: > Matthew ([EMAIL PROTECTED]) writes: > > > It COULD lead to a spin BUT since the rear wheels on an > > FWD car don't do more than keep the fuel tank off the pavement, > > it is more a side-effect of the nose-heavy weight distribution. Next up: FWD cars with heavy-duty swivel wheels on the rear. 'course, they'll have 2 brake pedals, one for each side to aid in turning. Then us shit-kickin' tractor-drivin' farm boys will clean up at the track since we already know how to use individual wheel brakes. (the track will be covered with manure, right?) ;) Ah, I'm just dreamin. FWD, RWD, I just want the touring car racing season to start again! Man do I love watchin' those guys duke it out. - -- John Bolhuis | "In America it is not considered to be mentally ill bolhuijo | when a woman advances on her prey in a discotheque @bolhuijo.com | setting with hardy cocktails present." | -Madonna ------------------------------ Date: Tue, 22 Feb 2000 21:40:42 -0500 From: "Duane Collie" <[EMAIL PROTECTED]> Subject: [uuc] Jim C. @ Curry's Auto >I'm working with Matt Curry at Curry's Auto to put on a dyno-tuning session with Jim Conforti in the national capital area. E-mail me if you are interested or have any >questions. So far i have the following people in addition to myself who have expressed interest: >Joel Gallun >Rusty Chapman Jason, <yawn> .... Dyno-tuning the Seven Sled would not be near as interesting as having a "Cut & Weld your Expensive Alloy Wheels" session culminating with the "Are They Still Round?" High Speed Acceleration Run afterwards.....now THAT sounds interesting. Actually since my car is a Sled, I've not much interest in a dyno tune, but it sure as hell would be fun to take over the Fairfax HOOTERS afterwards for a coupla hours. Jim C., you up for that? <like I have to ask him> - - Duane Collie ------------------------------ Date: Tue, 22 Feb 2000 21:52:49 -0400 From: Steven Schlossman <[EMAIL PROTECTED]> Subject: Re: [uuc] BMW NA's Response to "BMW Individual - Available or No?" At 5:04 PM -0800 2/22/2000, Jonathan Reiser wrote: [snip] >They state that the program is available from dealerships who are willing to >participate in the program. They then go on to say "Once you have located >such a center" without giving any indication of who some of those dealers >might be in my area.... Not very helpful. Anyway, below is the official >word on whether or not you can use BMW indivdual's program in the US. [snip] This was my experience two years ago. I had a 1998 318ti on order. I wanted it in Dakar Yellow II. My dealer couldn't do it. I call BMWNA and they tell me that I can. I call another dealer telling him I know exactly what I want and I want to order it in Darkar Yellow. He also told me no. I tell him, LOOK! Is this individual program bullshit or what? I just got off the phone with BMWNA and they tell me I can place an order using the Individual Program. I would like a 1998 318ti Sport, with blah, blah, balh and I want it in Dakar Yellow! Will you sell me that car?? Hold on sir. A few minutes later, yes. We can order it for you. It will be an additional $1500 and no guarantee when it was going to be built. What does that mean? It could be built in the 1st production run or it may be in the last. There is no guarantee. OK, thank you. $1500 is more than I am looking to spend especially when I don't know when it will even be produced. Thank you for your time. So. . . It's possible, but you got to be persistant. Next car will be Dakar Yellow and hopefully it will me a E 46 ///M Compact if I have the money that is. ...steven 1998 E36/5 ------------------------------ Date: Tue, 22 Feb 2000 22:03:21 -0500 From: "Gary Derian" <[EMAIL PROTECTED]> Subject: Re: [uuc] My first driver's school Lets say a FWD car lifts the inside rear tire at 0.7 G but can corner at 0.75. From 0 to 0.7 G, the front outside front tire takes 50% of the weight transfer. From 0.7 to 0.75 G, the outside front takes 100% of the weight transfer. This is what I mean by a kink in the curve. Not a kink in load vs. time, a kink in load vs. cornering. I explained the weight transfer distribution in another post. Maybe that makes it clearer. The 50/50 and 80/20 are typical numbers for weight transfer distribution, not weight distribution, under steady state conditions. Gary Derian <[EMAIL PROTECTED]> > "Gary Derian" <[EMAIL PROTECTED]> wrote: > > > > When the inside rear wheel is off the ground, all available weight has > > transferred at the rear. Any additional weight transfer from > > cornering faster once the wheel has lifted can only occur at the > > front. This puts a kink in the front tire load vs. cornering force > > curve. > > OK, we're almost on the same page now. Rear weight has transferred > completely to the outside rear wheel and front weight continues to > transfer at the front. But this was already happening, so unless you > lift a little or jerk the wheel or left-foot-brake, there will be no > "kink" or suddenly increased loading of the outside front tire. Weight > continues to transfer from the inside front to the outside front > smoothly. Even at the moment the inside rear begins lifting. > > > The typical 50/50 for FWD and 80/20 for RWD is steady state cornering. > > I still don't understand this. Aerodynamics aside, f/r weight balance > is pretty much unchanged during steady state (constant speed & radius) > cornering. So the 60/40 FWD and the 50/50 RWD cars still has close to > 60/40 and 50/50 weight distribution in the middle of the turn. The only > way the FWD car will have 50/50 dist. is if it's accelerating hard in > 1st gear. Likewise, the only way the RWD car will have 80/20 dist. is > if it was fitted with a Movit-Porsche big brake kit and was slowing down > at 1.2 g's. > > Or are you talking about side-to-side weight distribution at the front? > That would make more sense, but there will always be some weight > transfer. It wouldn't be 50/50 on the FWD car. > > -Luis Marques > '97 328i ------------------------------ Date: Tue, 22 Feb 2000 22:05:27 -0500 From: "Gary Derian" <[EMAIL PROTECTED]> Subject: Re: [uuc] Weight Transfer cont... The total front to rear distribution doesn't change (steady state). Front to rear on each side changes a lot. Take a generic FWD 2400 lb and 62.5/37.5 with wheel weights like this: lf 750 750 rf lr 450 450 rr As it corners left, weight transfers to the right. Say 500 lb total weight transfer distributed 50/50 means 250 lb transfers at the front and 250 at the rear. 500 1000 200 700 Now corner harder, until the inside just lifts. 300 1200 000 900 The inside weight distribution is 100/0. The outside weight distribution is 57/43. Now push a little more to really lift the inside rear. No more weight can transfer at the rear so all of it has to transfer at the front. The front used to take half of the total weight transfer, now it takes all of it. 200 1300 000 900 The outside weight distribution is getting worse again. The outside tire is really getting loaded. Also notice that there is very little load on the inside front to get any power to the ground. This is why a limited slip differential is more important in FWD than RWD. Gary Derian <[EMAIL PROTECTED]> > >The typical 50/50 for FWD and 80/20 for RWD is steady state cornering. > >Gary Derian <[EMAIL PROTECTED]> > > That would be for the outside pair of wheels only I take it. > > We have obviously determined that for a FWD car that the inside pair of > wheels will show a 100/0 front-to-rear weight distribution. > > As long as the throttle is at steady state and the brakes are not applied > then the total front to rear weight balance should be the same as static. > > Gustave > ------------------------------ End of [uucdigest] V3 #314 ************************** _________________________________________ | Please visit these UUC-approved BMW parts vendors/service providers: | (listed alphabetically) | Bonneville Motorwerks . http://www.bonnevillemotorwerks.com | Circle Tire Co. 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