E36M3 #2135

Monday, March 25, 2002 20:43:57

This digest contains the following messages:

#1. Re: [E36M3] MPG goin' south! - from Chester Wong
#2. Re: [E36M3] MPG goin' south! - from Jim Bassett
#3. Re: Loosing Collant- Bad Head Gasket? (long, but worth it) - from Roger Baker
#4. Re: [E36M3] Larger injectors for 1995 M3 - from NickG
#5. Re: [E36M3] Subject: Larger injectors for 1995 M3 - from NickG
#6. Re: [E36M3] Brembo Rotors - from Chris Teague
#7. Re: [E36M3] Euro HFM and Injectors - from RogRacer@aol.com
#8. RE: [E36M3]Light Flywheel - from Mel Silva
#9. Light Flywheel - from Paul Elliott
#10. supercharger software - from Paul Elliott

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#1. Re: [E36M3] MPG goin' south! - from Chester Wong
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Date: Mon, 25 Mar 2002 15:49:09 -0800 (PST) From: Chester Wong <chester_p_wong@yahoo.com> Subject: Re: [E36M3] MPG goin' south! Have you: - Changed the spark plugs - Run some Chevron detergent before your last oil change - Clean the air filter lately? Chester --- eevans@planetc.com wrote: > Date: Mon, 25 Mar 2002 18:34:02 -0500 > From: eevans@planetc.com > Subject: MPG goin' south! > > My '95 M3 w/ 68K on the clock has suddenly gone from getting around 18-19 mpg > in town to my latest low of 16.5 mpg. I have the Jim C. Euro intake, shield, > and ITS filter. Could a dirty air filter cause the degradation in mpg? It's > not filthy, but could use a bath. > > TIA > > Evan > > > ************************************************************* > 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. > ************************************************************* > > ===== __________________________________________________ Do You Yahoo!? Yahoo! Movies - coverage of the 74th Academy Awards(r) http://movies.yahoo.com/

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#2. Re: [E36M3] MPG goin' south! - from Jim Bassett
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Date: Mon, 25 Mar 2002 15:51:14 -0800 From: Jim Bassett <jimbassett@attbi.com> Subject: Re: [E36M3] MPG goin' south! At 03:33 PM 3/25/02, eevans@planetc.com wrote: >Date: Mon, 25 Mar 2002 18:34:02 -0500 >From: eevans@planetc.com >Subject: MPG goin' south! > >My '95 M3 w/ 68K on the clock has suddenly gone from getting around 18-19 >mpg in town to my latest low of 16.5 mpg. I have the Jim C. Euro intake, >shield, and ITS filter. Could a dirty air filter cause the degradation in >mpg? It's not filthy, but could use a bath. Possibly. How close are you to needing an Inspection Service? I've found that as the car gets within a couple thousand miles of the Inspection Service indication that my MPG tends to run about 1 MPG or so less than usual (dips to low 19s instead of mid-20.x). New plugs, fresh oil, etcetc, bring it right back up. It could also just be the way you happened to drive for that tankful (if you're measuring MPG over the course of a tank). Heck, it's Spring; I know I'm tending to drive a bit more, umm, exuberantly <g>. Cheers, Jim Bassett 1998 M3/4 1993 325is #44 KP

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#3. Re: Loosing Collant- Bad Head Gasket? (long, but worth it) - from Roger Baker
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Date: Mon, 25 Mar 2002 17:20:44 -0800 From: Roger Baker <rbaker@velodyne.com> Subject: Re: Loosing Collant- Bad Head Gasket? (long, but worth it) I'll have to disagree with a couple items here... First, I have a similar combo (3.2L w/obd1) and it _never_ overheats on the track (unless something were to break of course), so I do believe your situation has a problem. For you guys that were discussing the mechanical fan removal, mine has run without it for a couple years now and never a problem. Second, you can often (but not always) tell head gasket issues via a leakdown if it leaks to/from the combustion chamber as mine started to. It was a very small seepage caused by a lousy mechanic who built the engine using a sanding disc to clean the gasket off the head gasket material (f**kin idiot). If you properly perform the leakdown test & it leaks from the combustion chamber area, you find it by looking/listening where the excess air is venting. In my case, you could see bubbles from the cooling system. -- Roger Baker "Kris Welhart" <kris.welhart@cyou.com> wrote: > <snip> > group) and help some people in the future. I have a 95 M3 3.2l- OBD1. I have > overheated to the red 5 times, all at the track after 20 min of hard driving > and it is not reproducible on the street. I have not lost much coolant > <snip> > possibilities, but some things remain constant from the guys I trust. Here > are ways I've heard to determine a blown head gasket: Leakdown/ compression > does not tell you anything. Exhaust Gas Sniffer test should tell you

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#4. Re: [E36M3] Larger injectors for 1995 M3 - from NickG
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Date: Mon, 25 Mar 2002 20:28:12 -0500 From: "NickG" <nick@tech-nick.net> Subject: Re: [E36M3] Larger injectors for 1995 M3 For the record, the stock injectors on a '95 M3 are 17.5lb/hr, and the typical (although not exclusive) upgrade size is around 21.5lb/hr. The majority of BMW tuner shops do not sell or push larger injectors for the 95 M3 with a stock engine. They seem to feel that there's not much to gain on a stock motor with larger injectors. Now, if you do wish to install larger injectors, you NEED a chip that's reprogrammed to match them. If the chip is not matched to the injectors, then the DME will have less room to adjust for errors in the tuning/running conditions, as the majority of the adjustment will be used to make the larger injectors work. BTW, the DME's ability to adjust timing has nothing to do with the fuel amount. The timing adaptation has to do with detonation and fuel octane, not fuel mixture. Just because more fuel is 'available' with larger injectors, doesn't mean the DME will know to advance the spark timing to take advantage of it. And for that matter, more fuel doesn't mean more spark can be used. That's only possible if the mixture was on the threshold of detonation due to a lean mixture in the first place. Nick ----- Original Message ----- From: "Dorffer, Rich" <RDORFFER@CleIndians.com> To: "E36M3" <e36m3@bmw-m.net> Sent: Monday, March 25, 2002 10:33 AM Subject: [E36M3] Larger injectors for 1995 M3 Date: Mon, 25 Mar 2002 10:31:17 -0500 From: "Dorffer, Rich" <RDORFFER@CleIndians.com> Subject: Larger injectors for 1995 M3 Has anyone here inserted larger injectors (say ~22.5 lbs) into their 1995 M3 (which are ~19.5 lbs. IIRC) without doing cams? What was your experience? What was your set-up or did you make any programming changes to the computer? I understand that ODBI can adjust (timing, etc.) for the slightly more fuel and with the JC Intake and EURO HFM, I was wondering if the additional fuel can be taken advantage of. I am sure the car could potentially run too rich if ODBI can't adjust enough and you would end up wasting fuel but I don't think this is true with just the minor increase I am proposing. Any thoughts and direct personal experience would be grateful. Too bad Jim C is gone from this list, this would be his 'cup-of-tea'. Best regards, Rich 95 M3 - Wondering allowed if it could benefit from slightly higher flow fuel injectors without cams.

Reply to: NickG

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#5. Re: [E36M3] Subject: Larger injectors for 1995 M3 - from NickG
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Date: Mon, 25 Mar 2002 20:36:58 -0500 From: "NickG" <nick@tech-nick.net> Subject: Re: [E36M3] Subject: Larger injectors for 1995 M3 Tim, I think you're mistaken with your comment. You definately do NOT need to run larger injectors if you have the Euro HFM. I didn't when I was using it, and if I remember correctly, neither did you when you had your '95 M3. I'm sure the archives have JimC's opinion on this, but I'll paraphrase it. Basically, the stock 95 M3 injectors reach their max ability with installation of the Euro HFM kit (but are still safe with it). If you want to get more power above and beyond that level (ie, cams, headwork, etc.), then larger injectors are recommended/needed. Otherwise, like you mentioned, larger injectors will not net you more power and are a waste of money. BUT, even if you're just at the Euro HFM level of power, if you track the car with lots of high RPM usage, then larger injectors may be beneficial (again, per JimC). With the stock injectors running at high duty cycle's at high RPMs, they tend to heat up and lose linearity. Installing larger injectors will lower their duty cycle and keep them cooler, enhancing reliability and repeatability. Nick ----- Original Message ----- From: "Tim Gergen" <tgergen@hotmail.com> To: "E36M3" <e36m3@bmw-m.net> Sent: Monday, March 25, 2002 3:03 PM Subject: [E36M3] Subject: Larger injectors for 1995 M3 > FYI...if you run the euro HFM, you NEED TO run larger injectors! However, > with the stock intake, Jim said (about two years ago) that larger injectors > are a waste of money. FWIW, Tim

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#6. Re: [E36M3] Brembo Rotors - from Chris Teague
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Date: Mon, 25 Mar 2002 18:05:35 -0800 From: "Chris Teague" <cteague@cox.net> Subject: Re: [E36M3] Brembo Rotors Justin, I got mine from Steve D. at www.ultimategarage.com I think they were about $60. Not sure if that is the cheapest, but he sure has great service and advice. Chris 97 M3/4 ----- Original Message ----- > Who has the Brembos cheap? I need a set of track rotors for my PF-97s. > > Thanks, > Justin > > -- > '76 02 (Whimsical) > '97 M3 (Orion) > BMW CCA#77056 > check out http://users.vei.net/jgerry

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#7. Re: [E36M3] Euro HFM and Injectors - from RogRacer@aol.com
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Date: Mon, 25 Mar 2002 21:23:16 EST From: RogRacer@aol.com Subject: Re: [E36M3] Euro HFM and Injectors This is odd. Josh at Eurosport is emphatic that upgraded injectors are a waste of money for street cars with just the Euro HFM Upgrade. It is true you are pushing the duty cycle limits, but if usage is not sustained, it is not a big deal. This is the voice of JC, in theory, talking. But, having said that, Euro Car magazine did show a small gain on the Dyno with upgraded injectors. Still, this thread has been around in various forums, and I am presently of the opinion that unless your car is pushing more than about 230 rwhp, you don't need 'em. -Roger RogRacer@aol.com '95 M3, Euro HFM, stock injectors (but I keep 'em nice and *clean*)

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#8. RE: [E36M3]Light Flywheel - from Mel Silva
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Date: Mon, 25 Mar 2002 20:27:29 -0600 From: "Mel Silva" <melsilva@mindspring.com> Subject: RE: [E36M3]Light Flywheel Okay, I am really reaching here...but could this be a function of the internal balance of the engine itself? ie. if the crank, rod, piston combination have a "total" imbalance higher than average would you get this nasty vibration at certain harmonic RPMs? I'm sure that I have just thrown gas on the fire and not really solved anything, but it may lead someone else down the path of discovery. Mel -----Original Message----- From: Chris Papademetrious [mailto:chrispitude@yahoo.com] Sent: Monday, March 25, 2002 5:33 PM To: E36M3 Subject: Re:[E36M3]Light Flywheel Date: Mon, 25 Mar 2002 18:23:44 -0500 From: Chris Papademetrious <chrispitude@yahoo.com> Subject: Re:[E36M3]Light Flywheel At 02:03 PM 3/25/2002 -0600, you wrote: >I recently installed the Rogue LW FW on my 97 M3/4. > >NO idle chatter! I was shocked. I previously installed a "custom LW FW" >in my 95 and had lots of idle chatter....so i was really amazed that the >Rogue was QUIET. Tim, this part matches my experiences with the R.E. flywheel too. If I listen, I notice some slight noise at idle if I rev the motor. At a regular idle, nothing really sounds different. I'm surprised that the idle noise was enough to make other people take their flywheel out. I guess different flywheels really are different! >I also installed a Sachs clutch and P Plate (stock, not HD) at the same time. Is this a solid or sprung cluch? Is this different from the stock BMW assembly? Please excuse my ignorance here. >I have not noticeed any resonance either, at any rpm. This is definitely a problem in my car. If you read the active traffic on this topic at: http://www.bimmerforums.com/forum/showthread.php?threadid=25758 you'll see that different cars really do seem to react differently to light flywheel installation. I guess I'm unlucky, although I think it's amusing that my resonance drives me bonkers, yet some people have pulled their flywheels due to idle chatter (that I don't have). - Chris ************************************************************* 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. *************************************************************

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#9. Light Flywheel - from Paul Elliott
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Date: Mon, 25 Mar 2002 21:38:57 -0500 From: "Paul Elliott" <elliott.paul@worldnet.att.net> Subject: Light Flywheel Hi Tim, >>The Rogue is a home run IMHO.<< Despite my 420 crank hp, Im still on my stock clutch assembly. Its still not slipping except when shifting hard with quick and hard throttle tip in, but still Id imagine that in not too much more time, I'll be wanting to replace it with a heavier duty variety. Ive heard good things about the clutch AA is selling for forced induced applications, good up to quite a bit more torque than I'll be applying. But Ive been debating the ltwt flywheel issue..Most people in my situation would probably automatically go to the ltwt flywheel at the time of the clutch replacement. But, I find that my jaunts to redline are quite quick enough, if thats possible, and my main goal is a stronger clutch....That that I would mind even quicker response, but, the last thing I want to do is to risk the smoothness of the drivetrain that I now enjoy. Its even more confusing when reviews as diverse as yours and Chris' abound. If its just a stronger clutch, ie, stronger clamping force , that Im after, how do you guys feel about the AA offering? (does anyone know who makes it?) Is the Sachs Sport Clutch a good alternative? How bout Centerforce? Paul Elliott --------------------------------------------------------- '99 White M3; < 40K miles; Dinan stage II SC kit with 6" RMS crank pulley: 11 psi; AA Water Injection; Rotex pads;X-Brace; Dinan Koni Suspension; Stygar SS and Clutch Stop; Sound by Polk, Excelon, JLAudio

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#10. supercharger software - from Paul Elliott
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Date: Mon, 25 Mar 2002 21:40:39 -0500 From: "Paul Elliott" <elliott.paul@worldnet.att.net> Subject: supercharger software >>One option might be to get Dinan software, injectors and their "turbotronic" MAF voltage conditioner... but that probably isn't any cheaper than RMS's software.<< Good luck in trying to get those items a la carte. Paul Elliott --------------------------------------------------------- '99 White M3; < 40K miles; Dinan stage II SC kit with 6" RMS crank pulley: 11 psi; AA Water Injection; Rotex pads;X-Brace; Dinan Koni Suspension; Stygar SS and Clutch Stop; Sound by Polk, Excelon, JLAudio

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