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#1. Re: Rear wheel lifting during autox - from Ron Katona
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Date: Tue, 23 Apr 2002 20:45:20 -0400 From: Ron Katona <rkatona@bellatlantic.net> Subject: Re: Rear wheel lifting during autox I'm inclined to say loosen up the rear sway bar, but how's the car handling? Like Chris said, if it's doing something bad then why change it? OTOH, you might find a softer rear setup (springs and/or sway bar) helps you come out of corners much better. A lot of people fight the understeer boogey man in the E36 to the point of giving up good mid corner and corner exit balance. The net result is a great feeling car that turns in like all get out, but is not fast. How's the car on corner exit under power? How are your times compared to similarly prepped M3s? -- Ron Katona "DiVincenti, A.J." wrote: > > Regarding my rear wheel lifting episode during my last autox, I have the > Eibach sway bars set soft in the front and stiff in the rear. I have the > Koni Coil-Over Kit also. I don't believe I was doing any heavy trail > braking either. This was a runway type of course with a series of offset > gates and slaloms. The turnaround was slow and tight. No sweepers. > > I think the Eibach bars are 24mm front and 26mm rear. I'm kinda freaked out > by this. > > AJ
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#2. : wheel weights - from Paul Elliott
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Date: Tue, 23 Apr 2002 20:50:32 -0400 From: "Paul Elliott" <elliott.paul@worldnet.att.net> Subject: : wheel weights >>Maybe I will get lucky and get some that are almost perfectly balanced and NOT require tons of weights to get them balanced.<< You should see how mine came from Fikse with the pilot sports as a package....Each wheel had about 6" of weights in one place, and about 3" in another! More weight than Ive ever seen on a wheel! But, at least, I think I wont have to get them rebalanced by the Hunter GSP-9700 down the road...They seem pretty smooth, although I dont think theyre perfect...I can detect a 'hint' of vibration once in a while...I'll probably let it go for now. Ive had much worse on this car....It seems to be extraordinarily sensitive to balance issues...I think it can detect anything greater than 1/10 gr. which many machines wont even balance to... Paul Elliott --------------------------------------------------------- '99 White M3; < 45K miles; Dinan stage II SC kit with 6" RMS crank pulley: 11 psi; AA Water Injection; Fikse FM-10s; X-Brace; Dinan Koni Suspension; Stygar SS and Clutch Stop; Sound by Polk, Excelon, JLAudio
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#3. Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG - from Robert Chay
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Date: Tue, 23 Apr 2002 22:03:11 -0400 From: Robert Chay <rchay@mindspring.com> Subject: Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG From Eibach's website... http://www.eibach.com/eps-faqs.htm What is the spring rate of the Pro-Kit? Only simple linear springs have a spring rate. A sophisticated progressive Eibach Pro-Kit spring has a load/deflection characteristic. The special design parameters are only accessable through Eibach Desk-Tech Database to Eibach's exclusive partners. I think you're talking about their coilover springs though. -Bobby ----- Original Message ----- > > > Chester, > > I hate to contradict Jay, but stock springs are most obviously progressive. > > Both in coil diameter and the winding radius (aka barrel shaped). > > I beg to differ over on this point. Yes, stock rear springs are barrel shaped, > but....the coil gets smaller in diameter and there's a certain amount of the > spring that gets compressed just to get to static ride height. When I went to > the alignment shop, they had a Longacre spring dyno and we asked to test the > first spring Jay sent, the correct one and the stock one. We put the stock > rear spring in and compressed the spring to simulate compression for static > ride height, zero'ed the scale and compressed 1". The reading? 300 lbs. We > then compressed another inch. The reading? 604 lbs. So...yah...I guess they > are progressive...hahahaha. In conclusion, the stock rear springs are > 302#/inch. > > > Progressive springs are not the problem. > > Just about every stock spring on any car is progressive. Nonetheless all of > > them come with tuned suspensions that do not exhibit any bounciness. > > H&Rs are just too stiff for Koni SAs. Your shocks are under-damped on > > compression and that is something you can not rectify with rebound > > adjustment. > > I beg to differ here. Call up Eibach and ask them about their springs for the > M3. They'll confirm that they are linear and that the rates (for '96+) is > 136(front) and 440(rear). > > If you look at a stock spring off of a '95M3 (the one where the coils are > uniform in diameter), you'll see that the spacing between the coils is even. > Go to UUC's webpage for spring rates...the spring rate for the is around > 95#/inch....through 4 inches of compression! I'd say that was pretty much > linear. > > The problem is with progressive rate springs. What does compression have > anything to do with any of this? A higher compression rate in the shocks would > just give me a virtually stiffer spring, no? How would you explain using > 375#/inch front and 450#/inch rear linear Eibach Racing Springs in my car with > the Koni SAs and I have no bounciness? > > Chester > > =====
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#4. RE: [E36M3] Weekend report :) (GC coilover review, other stuff).. - from David Ngo
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Date: Tue, 23 Apr 2002 22:13:25 -0400 From: David Ngo <dngo@commvault.com> Subject: RE: [E36M3] Weekend report :) (GC coilover review, other stuff).. .LONG Yes, this is exactly what it says on their web site. However, the representative that I spoke to yesterday afternoon in their Irvine office said that their E36M3 springs are linear (he volunteered this info without prompting) and even gave me spring rates: For the 3.2L cars, PN 2059.140: F: 136lb/in R: 440lb/in For the 3.0L cars, PN 2041.140: F: 122lb/in R: 440lb/in Regards, Dave > -----Original Message----- > From: Robert Chay [mailto:rchay@mindspring.com] > Sent: Tuesday, April 23, 2002 10:05 PM > To: E36M3 > Subject: Re: [E36M3] Weekend report :) (GC coilover review, other > stuff)...LONG > > > Date: Tue, 23 Apr 2002 22:03:11 -0400 > From: Robert Chay <rchay@mindspring.com> > Subject: Re: [E36M3] Weekend report :) (GC coilover review, > other stuff)...LONG > > From Eibach's website... > http://www.eibach.com/eps-faqs.htm > > What is the spring rate of the Pro-Kit? > > Only simple linear springs have a spring rate. A > sophisticated progressive > Eibach Pro-Kit spring has a load/deflection characteristic. > The special > design parameters are only accessable through Eibach > Desk-Tech Database to > Eibach's exclusive partners. >
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#5. Re: [E36M3] LTW Interior Info Request - from Michael
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Date: Tue, 23 Apr 2002 22:46:49 -0400 From: "Michael" <95m3ltw@charter.net> Subject: Re: [E36M3] LTW Interior Info Request What? Neoprene-ish? what kind of seats have you been in? My Ltw's seats are far from being neoprene-ish or slippery! They are normal cloth as to texture/feel/grip. And they are by far the best seats put in any E-36 M3 that I have been in. Vaders are a joke, looks and nothing else, very flat on the top, Heck the regular sport seats out of the Lux package actually provide better support than the vader seats. If they were cloth like the LTW seats, they would be LTW seats, lol, since they are the same. Mike ----- Original Message ----- From: "Alan Taur" <alantaur@yahoo.com> 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.
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#6. Watkins Glen - from Vince Leo
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Date: Tue, 23 Apr 2002 19:48:38 -0700 (PDT) From: Vince Leo <m332is@yahoo.com> Subject: Watkins Glen I saw more than few names I recognize from the list but if you have not signed up, time to get those garage queen M3s out of the garage and on track at Watkins Glen. The Genesee Valley Chapter is looking for a few more students (mainly novice) to round out the 5/18 and 19 school. Let's not let the e-46 M3s out number the classic! See the GVC web site for details. Vince 89 M3 99 M3 91 318is BMP Design #85 LP/ITS Team Idiot Racing __________________________________________________ Do You Yahoo!? Yahoo! Games - play chess, backgammon, pool and more http://games.yahoo.com/
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#7. Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG - from kit wetzler
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Date: Tue, 23 Apr 2002 20:30:30 -0700 From: "kit wetzler" <kitwetzler@mindspring.com> Subject: Re: [E36M3] Weekend report :) (GC coilover review, other stuff)...LONG > H&Rs are just too stiff for Koni SAs. Your shocks are under-damped on > compression and that is something you can not rectify with rebound bzzzzt. wrong. The H&R sport springs are too SOFT for them. You end up riding on the bumpstops the whole time, especially with Bilsteins. The H&R coilovers are stiffer but ride A LOT better. The stock springs look progressive but the part that looks progressive gets coil bound as soon as you put weight onto the car. It really is there just to keep the spring in place during full extension of the suspension. -kit
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#8. RE: Rear wheel lifting during autox - from Neil Maller
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Date: Wed, 24 Apr 2002 07:24:18 -0500 From: Neil Maller <neil.maller@gte.net> Subject: RE: Rear wheel lifting during autox on 4/23/02 11:45 AM, Matt Henson <hensonator@yahoo.com> wrote: > It is very common, yet incorrect, to use > sway bars to reduce body roll. Body roll should be > managed with springs, not bars. Once the general roll > stiffness is achieved then the bars should be used to > tune the Front/Rear relative roll stiffness. That's certainly the case for racecars, and you'll find that advice in Carroll Smith's books and elsewhere. However in most cases it's not really practical or appropriate for street or mixed use cars. When you install springs stiff enough to provide adequate roll control, and shock absorbers calibrated to damp them properly, then the ride tends to become too harsh to live with. Heavier swaybars are an effective compromise for street use, offering effective roll control with only modest effect on ride quality. Neil 96 M3
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#9. Racing shoes and gloves - from Wayne Miller
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Date: Wed, 24 Apr 2002 10:27:42 -0400 From: "Wayne Miller" <m3@waynemiller.com> Subject: Racing shoes and gloves 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? For gloves, I like these (but not in orange): http://www.randys-racemart.com/gf5glove.html But there are so many choices here that I had second thoughts: https://www.ogracing.com/ogshell/loadpage.pl?id+catalog.html <- click on the Gloves link on the left For shoes, I was looking at these 2 pages: http://www.racerwholesale.com/Merchant2/merchant.mv?Screen=PROD&Store_Co de=RW&Product_Code=MAT0235&Category_Code=Racing+Boots https://www.ogracing.com/ogshell/loadpage.pl?id+catalog.html <- click on the shoes page on the left I like the mid-tops for whatever reason. Thoughts? Opinions? Thanks, -Wayne
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#10. Hoosier SM/BSP tire pressures - from Rex Tener
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Date: Wed, 24 Apr 2002 07:56:59 -0700 From: Rex Tener <rex_tener@yahoo.com> Subject: Hoosier SM/BSP tire pressures I have just done the first round of modifications that moved my car into Street Mod/BSP in SCCA autocross. I am running 245/40-17 Hoosier A3S03's on 17x9 wheels with 2 degrees of camber in front and 1.5 degrees in the rear. I know my stock class tire pressures are way too high. Can anyone of the SM/BSP guys give me a good starting point for tire pressures? Thanks, -- Rex Tener rex_tener@yahoo.com 1996 BMW M3, SCCA SFR Solo II Street-Mod/BSP #173
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#11. [E36M3] LTW Interior Info Request - from Dorffer, Rich
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Date: Wed, 24 Apr 2002 11:04:12 -0400 From: "Dorffer, Rich" <RDORFFER@CleIndians.com> Subject: [E36M3] LTW Interior Info Request Alan and Marc, Yep, that is what I was looking for. Seems Matt Malfa at UUC had done all the homework I was starting to do (like having your assignment done for you in school). I now realize that I wanted more information on the 1994 325is M-Technic "suede"/cloth interior (which I have seen before) which appears to be the same as the "suede"/cloth of the 1993 - 1995 M3s. I have also seen the "suede"/cloth interior of the 1996+ M3s which has a different cloth pattern. I wrongly assumed the 1994 325is M-Technic "suede"/cloth interior was similar to the 1995 M3 LTW / CSL. Alan said > 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. Thanks to all who responded. Indeed that is odd. Marc said > You don't have any LTWs showing up locally to look at? Sure, there are always a few at Mid-Ohio. But, they are usually prepared club racers and have very little resemblance of their original interior any more ;-) Best regards, Rich