E36M3 #2544

Friday, August 23, 2002 21:04:51

This digest contains the following messages:

#1. Re: RE730 vs. SO3 - from Peter Fanning
#2. Re: [E36M3] Re: RE730 vs. SO3 - from matthew c. mead
#3. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
#4. Change oil before or after driving school? - from K Quistorff
#5. Re: [E36M3] Re: RE730 vs. SO3 - from Jim Bassett
#6. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
#7. LTW/euro spring rate vs. US - from GGray657@aol.com
#8. Re: [E36M3] Re: RE730 vs. SO3 - from matthew c. mead
#9. Re: [E36M3] LTW/euro spring rate vs. US - from Rich Beebe
#10. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
#11. '95 5-Spoke Wheels & Tires - from Greg Gantt

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#1. Re: RE730 vs. SO3 - from Peter Fanning
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Date: Fri, 23 Aug 2002 15:03:37 -0700 From: Peter Fanning <p.fanning@verizon.net> Subject: Re: RE730 vs. SO3 Having just dumped a set of RE730s for the SO3's I'll pipe in here. The 730s were not a very good tire. They were noisy, poor wearing and did not turn in or stick well. They made some noise new and became VERY noisy as they aged. One of the rear tires started separating (!) at the inside edge. I had a student at the last event I participated in that didn't run his 730s due to extreme chunking of the tread. I was not at all impressed with this tire. If you're trying to save a few bucks (I know I'd like to) try the new Kumho MX street tires. I'd have purchased the MX but could not get them, they're on a slow boat from Korea. I only have ~1500 miles on the SO3s but am impressed with them in the dry. I haven't had a chance to run them in the rain yet. They started out a little squirmy but have become very stable. I think it may just take a while to get all the release agents out of the rubber. I think these are better than the Pilot Sports or MXX3s. I'm also running them on stock staggered wheels in 235/40/17 so I can remount them front to rear half way through their life. Peter Fanning '98 M3/4 At 01:13 PM 8/23/2002 -0500, you wrote: >Date: Fri, 23 Aug 2002 08:18:52 -0700 >From: "twisty M3" <twistym3@hotmail.com> >Subject: Re: [E36M3] RE: SO3's rubbing fenders > > > > >From: "Jason Sarich" <sarich_m3@prontomail.com> > > > >(RE: RE730 vs. S03) > > > > The grip is fantastic in the dry/rain > >and they tires are far cheaper than the SO3's. > > > >I can't comment on the performance of the RE730, as I've never tried them. >I will comment on the price difference though. With the S03s running $179 >and the RE730 running $156 (245/40-17 for both), I wouldn't consider the >RE730s to be "far cheaper." > >You would save just over $90 on all four, however, and I'm willing to bet >that they certainly may last a bit longer. > >Jonathan L.

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#2. Re: [E36M3] Re: RE730 vs. SO3 - from matthew c. mead
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Date: Fri, 23 Aug 2002 18:15:12 -0400 From: "matthew c. mead" <mmead-bmw@goof.com> Subject: Re: [E36M3] Re: RE730 vs. SO3 On Fri, Aug 23, 2002 at 05:03:55PM -0500, Peter Fanning wrote: > better than the Pilot Sports or MXX3s. I'm also running them on stock > staggered wheels in 235/40/17 so I can remount them front to rear half way I know the 8.5" will fit up front with no trouble cause I've messed up and put one up there, but does this change anything else to have the 8.5s up front and the 7.5s in rear? -matt -- matthew c. mead 97 Dakar M3/4 - sharked, xbraced 97 White GS-R/4 - stock (wife's) 92 Black Miata - dropped, dampened, headed towards SM http://www.goof.com/~mmead/

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#3. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
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Date: Fri, 23 Aug 2002 15:26:56 -0700 From: Peter Fanning <p.fanning@verizon.net> Subject: Re: [E36M3] Re: RE730 vs. SO3 I wouldn't run the 8.5 in front with 7.5 in back. I think you'd find the handling unpleasant, can you say understeer? I plan on dismounting the tires form the wheels flipping them and moving them from the front wheels to the rears. As an fyi some 95 M3s came with staggered wheels and 235/40/17 all around from the factory. Peter Fanning '98 M3/4 At 06:15 PM 8/23/2002 -0400, matthew c. mead wrote: >On Fri, Aug 23, 2002 at 05:03:55PM -0500, Peter Fanning wrote: > > better than the Pilot Sports or MXX3s. I'm also running them on stock > > staggered wheels in 235/40/17 so I can remount them front to rear half way > >I know the 8.5" will fit up front with no trouble cause I've >messed up and put one up there, but does this change anything >else to have the 8.5s up front and the 7.5s in rear? > > >-matt

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#4. Change oil before or after driving school? - from K Quistorff
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Date: Fri, 23 Aug 2002 18:43:08 -0400 From: "K Quistorff" <kqkq@nc.rr.com> Subject: Change oil before or after driving school? I'm coming up on a oil change (4200 miles since last change - Mobil1 15W-50 w/OEM filter) and wondered if it would make more sense to change the oil just before or just after an upcoming track school. Keith Quistorff 1996 M3 Cary, NC

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#5. Re: [E36M3] Re: RE730 vs. SO3 - from Jim Bassett
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Date: Fri, 23 Aug 2002 16:14:38 -0700 From: Jim Bassett <jimbassett@attbi.com> Subject: Re: [E36M3] Re: RE730 vs. SO3 At 03:33 PM 8/23/02, Peter Fanning wrote: >I wouldn't run the 8.5 in front with 7.5 in back. I think you'd find the >handling unpleasant, can you say understeer? Yes, but it's pronounced "OVERsteer". :-) Jim ....just a twinge of "smartass-ness"

Reply to: Jim Bassett

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#6. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
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Date: Fri, 23 Aug 2002 16:28:43 -0700 From: Peter Fanning <p.fanning@verizon.net> Subject: Re: [E36M3] Re: RE730 vs. SO3 Uh, yea, it's my accent. Er, I was seeing if anyone was paying attention. Yea, that's it. DOH! (think before typing, think before typing...) Peter usually the smartass... At 04:14 PM 8/23/2002 -0700, Jim Bassett wrote: >At 03:33 PM 8/23/02, Peter Fanning wrote: >>I wouldn't run the 8.5 in front with 7.5 in back. I think you'd find the >>handling unpleasant, can you say understeer? > >Yes, but it's pronounced "OVERsteer". > >:-) > >Jim >...just a twinge of "smartass-ness"

Reply to: Peter Fanning

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#7. LTW/euro spring rate vs. US - from GGray657@aol.com
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Date: Fri, 23 Aug 2002 20:06:39 EDT From: GGray657@aol.com Subject: LTW/euro spring rate vs. US Anyone know exactly how much difference there is in spring rate, and ride height, for the two springs? Or where I can find the info? I am trying to decide if I want to use H&R's or the LTW/euro spring. The car is will be used for track days, and limited street use with some unfriendly road surfaces. Gary 95M3

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#8. Re: [E36M3] Re: RE730 vs. SO3 - from matthew c. mead
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Date: Fri, 23 Aug 2002 21:14:42 -0400 From: "matthew c. mead" <mmead-bmw@goof.com> Subject: Re: [E36M3] Re: RE730 vs. SO3 My question is, why would it give you understeer OR oversteer beyond normal if the tires are the same all around? It's just different wheel size. -matt On Fri, Aug 23, 2002 at 06:33:55PM -0500, Peter Fanning wrote: > Date: Fri, 23 Aug 2002 16:28:43 -0700 > From: Peter Fanning <p.fanning@verizon.net> > Subject: Re: [E36M3] Re: RE730 vs. SO3 > > Uh, yea, it's my accent. > > Er, I was seeing if anyone was paying attention. > > Yea, that's it. > > > DOH! (think before typing, think before typing...) > > Peter > usually the smartass... > > At 04:14 PM 8/23/2002 -0700, Jim Bassett wrote: > >At 03:33 PM 8/23/02, Peter Fanning wrote: > >>I wouldn't run the 8.5 in front with 7.5 in back. I think you'd find the > >>handling unpleasant, can you say understeer? > > > >Yes, but it's pronounced "OVERsteer". > > > >:-) > > > >Jim > >...just a twinge of "smartass-ness" > > > > ************************************************************* > 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. > ************************************************************* > > -- matthew c. mead 97 Dakar M3/4 - sharked, xbraced 97 White GS-R/4 - stock (wife's) 92 Black Miata - dropped, dampened, headed towards SM http://www.goof.com/~mmead/

Reply to: matthew c. mead

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#9. Re: [E36M3] LTW/euro spring rate vs. US - from Rich Beebe
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Date: Fri, 23 Aug 2002 21:28:04 -0400 From: Rich Beebe <rich@beebecomm.com> Subject: Re: [E36M3] LTW/euro spring rate vs. US you can check the UUC web site for a chart showing information on the springs you're interested in. check the 'tech tip' area for 'E36 spring rates'. basically, though, the euro and the LTW springs drop your car roughly .5" in the front and .5-.75" in the rear, but the euro springs have a higher spring rate. the free length of the euro 95 springs is 12.5", while the euro 96 and LTW springs are 12.75". rear free length is 9.125" for all springs. front springs on the LTW have 4 blue dots, while the rear springs have 3 white. euro springs (95s, i think) have 2 gray dots in the front and 2 white in the rear. i'm sure others can add more info. rich 95 LTW - H&R sports (LTW springs boxed up) 95 M3 - H&R sports > From: GGray657@aol.com > Reply-To: GGray657@aol.com > Date: Fri, 23 Aug 2002 19:14:00 -0500 > To: E36M3 <e36m3@bmw-m.net> > Subject: [E36M3] LTW/euro spring rate vs. US > > Date: Fri, 23 Aug 2002 20:06:39 EDT > From: GGray657@aol.com > Subject: LTW/euro spring rate vs. US > > Anyone know exactly how much difference there is in spring rate, and ride > height, for the two springs? Or where I can find the info? I am trying to > decide if I want to use H&R's or the LTW/euro spring. The car is will be used > for track days, and limited street use with some unfriendly road surfaces. > > Gary > 95M3

Reply to: Rich Beebe

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#10. Re: [E36M3] Re: RE730 vs. SO3 - from Peter Fanning
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Date: Fri, 23 Aug 2002 18:55:29 -0700 From: Peter Fanning <p.fanning@verizon.net> Subject: Re: [E36M3] Re: RE730 vs. SO3 The tires fit differently on different size wheels and the load is distributed differently. The 235 tire on a 8.5 wheel will produce a larger section width and maybe tread width than a 235 on a 7.5 wheel. The 235 on the 8.5 wheel will also have less sidewall flex improving initial turn in and helping grip (kind of like a lower aspect ratio). This difference in width will provide more grip on the wider wheel. This is my understanding at least. So, if a balanced car is given a narrow contact patch (235 on 7.5 wheel) on one end and a wide contact patch (235 on 8.5 wheel) on the other there will be a tendency to under or oversteer. The M3 is designed to understeer from the factory, part of that design is the narrower wheel and tire up front. If you place the wider contact patch on the front and narrow on the rear suddenly the car has more grip in front than in back producing oversteer (hey no accent problem ;-) hi Jim). Clear as mud? Peter At 09:14 PM 8/23/2002 -0400, matthew c. mead wrote: >My question is, why would it give you understeer OR oversteer >beyond normal if the tires are the same all around? It's just >different wheel size. > > > >-matt > >On Fri, Aug 23, 2002 at 06:33:55PM -0500, Peter Fanning wrote: > > Date: Fri, 23 Aug 2002 16:28:43 -0700 > > From: Peter Fanning <p.fanning@verizon.net> > > Subject: Re: [E36M3] Re: RE730 vs. SO3 > > > > Uh, yea, it's my accent. > > > > Er, I was seeing if anyone was paying attention. > > > > Yea, that's it. > > > > > > DOH! (think before typing, think before typing...) > > > > Peter > > usually the smartass... > > > > At 04:14 PM 8/23/2002 -0700, Jim Bassett wrote: > > >At 03:33 PM 8/23/02, Peter Fanning wrote: > > >>I wouldn't run the 8.5 in front with 7.5 in back. I think you'd find > the > > >>handling unpleasant, can you say understeer? > > > > > >Yes, but it's pronounced "OVERsteer". > > > > > >:-) > > > > > >Jim > > >...just a twinge of "smartass-ness" > > > > > > > > ************************************************************* > > 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. > > ************************************************************* > > > > > >-- >matthew c. mead >97 Dakar M3/4 - sharked, xbraced >97 White GS-R/4 - stock (wife's) >92 Black Miata - dropped, dampened, headed towards SM > >http://www.goof.com/~mmead/

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#11. '95 5-Spoke Wheels & Tires - from Greg Gantt
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Date: Fri, 23 Aug 2002 21:56:46 -0400 From: Greg Gantt <ggantt@gantt-consulting.com> Subject: '95 5-Spoke Wheels & Tires My '95 has the 7.5" front and 8.5" rear silver-finished 5-spoke forged wheels with worn 235/40s AVS Sports on all four corners. With the staggered wheel size, it's expensive swapping the tires to balance wear front to rear. I'm looking at two options for replacing the tires: 1) Stick with 235/40s and live with tire-swapping or uneven replacement intervals 2) Purchase a set of 8.5" 5-spoke wheels to put up front and then run 245/40s front and rear It would seem option-2 would give me the flexibility to rotate tires and get a little more rubber on the road. Are there any downsides to the handling characteristics in making this change? I do occasionally autocross the car - would running 8.5" wheels up front put me in a non-stock class? Greg P.S. If you've got a pair of straight 8.5" silver finished 5-spokes for sale, e-mail me privately with pics and price at ggantt@mail.com. Thanks.

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