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#1. IFG Center Caps (now BBS RK) - from Jeff Bjerke
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Date: Wed, 1 Mar 2006 09:12:44 -0600 From: "Jeff Bjerke" <jbjerke@charter.net> Subject: IFG Center Caps (now BBS RK) Speaking of center caps, I need a set for my 18x8.5 BBS RK's if anyone happens to have a set of these available. Jeff ========================================== From: "jsp98m3" <jsp98m3@apexcone.com> > Date: Mon, 27 Feb 2006 22:54:52 -0800 > From: "jsp98m3" <jsp98m3@apexcone.com> > Subject: IFG Center Cap Availability > > http://forums.bimmerforums.com/forum/showthread.php?p=6015072#post6015072 > > > > I think most of these wheels probably live on cars on this list. > > > > Jim Powell
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#2. Re: [E36M3] RE: Caliper Pistons - from mdriver13@aol.com
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Date: Wed, 01 Mar 2006 10:22:36 -0500 From: mdriver13@aol.com Subject: Re: [E36M3] RE: Caliper Pistons These SS pistons sound great. However, I'd like to defer to our mechanical engineers as too the heat expansion difference between the OEM and these.?? There is a lot of heat generated down by those calipers so it's important to know if there could be issues. I would think not since the OEM's are probably made from steel, just not stainless. regards, Bob Gill 97 ///M3 coupe (sponsored by WCC & JT-Designs) Philly Region SCCA 2005 Philly Region BSP Champion
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#3. RE: [E36M3] RE: Caliper Pistons - from Chester Wong
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Date: Wed, 1 Mar 2006 07:25:45 -0800 (PST) From: Chester Wong <chester_p_wong@yahoo.com> Subject: RE: [E36M3] RE: Caliper Pistons The only wear that I've seen is from rust eating away at the metal. Other than that, I don't see very much wear, if at all, happening on the stock pistons and I certainly don't think it would be accelerated going to a stainless steel version, though I'm not a metallurgist. Chester --- Patrick Goss - PA <Patrick_Goss@GMACM.COM> wrote: > If they do indeed wear, will stainless necessarily wear less or more > than the oem ones. Stainless isn't exactly 100% impervious to corrosion > or pitting either is it? At least when you buy hardware, you don't get > SS for exterior apps, you get the coated stuff, (what's that called > again)?
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#4. Re: SS pistons - from david kroth
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Date: Wed, 1 Mar 2006 07:40:48 -0800 (PST) From: david kroth <david_kroth@yahoo.com> Subject: Re: SS pistons I just spoke with John and ordered a couple rear pistons. I too will report back my experience. Larry B wrote: > Here is the contact information if you want to > purchase your own: > > John Farrell > 57D Alder St. > W. Babylon, NY 111704 > > 800-454-7977 David Kroth david_kroth@yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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#5. RE: [E36M3] RE: Caliper Pistons - from Patrick Goss - PA
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Date: Wed, 1 Mar 2006 09:51:08 -0600 From: "Patrick Goss - PA" <Patrick_Goss@GMACM.COM> Subject: RE: [E36M3] RE: Caliper Pistons Okay list, where is our resident metalgeek? There has to be one here, don't be shy this is your chance to amaze us with you intellect! We need to understand the theory of stainless being better in this application, wear, corrosion, heat expansion, or other possible concerns/benefits. -----Original Message----- From: Chester Wong [mailto:chester_p_wong@yahoo.com] Sent: Wednesday, March 01, 2006 10:26 AM To: E36M3 Subject: RE: [E36M3] RE: Caliper Pistons Date: Wed, 1 Mar 2006 07:25:45 -0800 (PST) From: Chester Wong <chester_p_wong@yahoo.com> Subject: RE: [E36M3] RE: Caliper Pistons The only wear that I've seen is from rust eating away at the metal. Other than that, I don't see very much wear, if at all, happening on the stock pistons and I certainly don't think it would be accelerated going to a stainless steel version, though I'm not a metallurgist. Chester --- Patrick Goss - PA <Patrick_Goss@GMACM.COM> wrote: > If they do indeed wear, will stainless necessarily wear less or more > than the oem ones. Stainless isn't exactly 100% impervious to corrosion > or pitting either is it? At least when you buy hardware, you don't get > SS for exterior apps, you get the coated stuff, (what's that called > again)? ************************************************* Please help support the E36M3 list by visiting our sponsors: Bimmerworld http://www.bimmerworld.com Turner Motorsport http://www.turnermotorsport.com Eurosport High Performance http://www.eurosporthighperformance.com Rogue Engineering http://www.rogueengineering.com Treehouse Racing http://www.treehouseracing.com Elephant Motorsports Inc. http://www.elephantmotorsports.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm *************************************************
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#6. RE: [E36M3] RE: Caliper Pistons - from Patrick Goss - PA
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Date: Wed, 1 Mar 2006 09:55:16 -0600 From: "Patrick Goss - PA" <Patrick_Goss@GMACM.COM> Subject: RE: [E36M3] RE: Caliper Pistons I don't think it's "just" the rubber seal being a wear point, it's more like that ring of dirt that builds up over time causing rust and wearing groves. I'm think I'm in for this too, pistons and rebuild kit are more economical than replacement. I get sporadic sticky calipers, and don't want to pull them apart to find I need these and it be too late. -----Original Message----- From: Carlos.F.Lopez@jci.com [mailto:Carlos.F.Lopez@jci.com] Sent: Wednesday, March 01, 2006 10:06 AM To: E36M3 Subject: Re: [E36M3] RE: Caliper Pistons Date: Wed, 1 Mar 2006 09:57:43 -0500 From: Carlos.F.Lopez@jci.com Subject: Re: [E36M3] RE: Caliper Pistons As to wear, we're talking a steel piston riding over a rubber seal. I'm guessing the rubber wears more. :-) I'm likely in for a set or rear pistons. -Carlos 98 M3 ************************************************* Please help support the E36M3 list by visiting our sponsors: Bimmerworld http://www.bimmerworld.com Turner Motorsport http://www.turnermotorsport.com Eurosport High Performance http://www.eurosporthighperformance.com Rogue Engineering http://www.rogueengineering.com Treehouse Racing http://www.treehouseracing.com Elephant Motorsports Inc. http://www.elephantmotorsports.com DIGEST INFORMATION: http://www.bmw-m.net/resources/digest_info.htm *************************************************
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#7. RE: Caliper Pistons - from Lawrence Barbieri
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Date: Wed, 1 Mar 2006 11:53:16 -0500 From: "Lawrence Barbieri" <larry@logicalconclusions.com> Subject: RE: Caliper Pistons Pat, I think the originals are just steel. Clearly the exposed area gets pitted and rusts along with the inner cup area. I have not measured the new vs. old yet, but will try to get that done in a few days. I assume my originals are the ones that BMW put in when the car was built, hence they have 124K miles on them. Don't know about the wear of stainless vs. steel, but I bet John could answer that one. There is the added advantage that the heat transfer of SS is less than regular steel, so the amount of heat transferred to the brake fluid should be less. For a track car this is important. The coated stuff...galvanized? I've used stainless h/w for some underbody stuff and it has held up quite well. The new pistons seem to fit and feel exactly the same as the originals. Since there is a rubber seal, I'm not sure how critical the tolerance is. But, I can tell you these new ones are beautifully manufactured. He makes thousands of pistons for Jaguar guys and says he's never had an issue with any of them. Larry > Very cool, and thanks, you're going to make a lot of list members happy > I'm sure. I have a question thou, does anybody know exactly what the > original ones are made of? I've often wondered how much caliper pistons > can actually wear, (I know they can get groves in them (from past > experience)). Has anybody measured new ones vs ones with say 100K on > them? > > If they do indeed wear, will stainless necessarily wear less or more > than the oem ones. Stainless isn't exactly 100% impervious to corrosion > or pitting either is it? At least when you buy hardware, you don't get > SS for exterior apps, you get the coated stuff, (what's that called > again)? > > Lawerence how many miles on your pistons that you sent in to have these > made? Probably doesn't matter, just wondering if the precision is there > myself? They tell you not to hone and rebuild wheel cylinders for this > reason, and well, I wonder if the same tolerance is really that > critical? > > I see the true value here is that they are available, where the original > ones aren't so much it seems by recent posts. At the prices you posted, > I'll probably get a set to put back for when I rebuild my calipers in > the evident future. > > Patrick Goss > 97 M3/4 > > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.1.1/271 - Release Date: 2/28/2006
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#8. Re: Caliper pitons - from James Clay
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Date: Wed, 1 Mar 2006 12:58:02 -0500 From: "James Clay" <james@bimmerworld.com> Subject: Re: Caliper pitons Since John already had them made. http://www.nexternal.com/bimmerworl/Product755 James Clay http://www.bimmerworld.com http://www.bimmerworldracing.com http://www.powerflexusa.com Race Proven BMW Performance 877.639.9648
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#9. Re: [E36M3] RE: Caliper Pistons - from Gus Iverson
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Date: Wed, 1 Mar 2006 10:44:52 -0800 From: "Gus Iverson" <gus.iverson@gmail.com> Subject: Re: [E36M3] RE: Caliper Pistons So, here's a question: If the SS pistons reduce heat transfer to the fluid, is this really a good thing or are we making undue assumptions here? One of the effects of heat transfer to the fluid is cooling of the caliper and pad (and to an extent, the disk itself because less heat is transfered from the caliper and pad to it). Since pad fade, particularly on a car with less aggressive brake pads than a typical out and out race car, can be just as problematic to us as fluid fade, are we just trading one problem for another? I guess what I'm getting at is that I would be wary of purchasing these parts to put onto a street car that sees HPDE events instead of a regular rebuild kit until more questions are answered. Thanks Gus
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#10. T shirts - from Gary
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Date: Wed, 1 Mar 2006 12:55:43 -0600 From: "Gary" <probikeguy@probikeusa.com> Subject: T shirts From the response it looks like we could do an order. In an effort to keep things simple I am only doing black short sleeve. I will try and get the price and post it next week. Same rules as last time. Money has too be sent in first then I will place the order. Keeps me from having to spend my money. More next week! thanks Gary