The BMW UUC Digest Volume 2 : Issue 95 : "text" Format Messages in this Issue: Re: e46 330i Understeer Re: e46 330i Understeer Re: Paucity of BMW computer tuning Re: Paucity of BMW computer tuning Re: Paucity of BMW computer tuning Re: Paucity of BMW computer tuning Re: Paucity of BMW computer tuning Re: Tires That Don't Wander? Re: 35 Pin 081 DME (early "i") w/ ETA Harness?? [E46] 328i - UUC Sport Exhaust E34 535i Towing Capacity? Re: E34 535i Towing Capacity? Re: E34 535i Towing Capacity? Re: E34 535i Towing Capacity? <E30> <M3> Advice
---------------------------------------------------------------------- Date: Thu, 18 Mar 2004 22:56:32 -0800 From: Mark Dadgar <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: e46 330i Understeer Message-ID: <[EMAIL PROTECTED]> On Mar 18, 2004, at 10:17 PM, Roger Baker wrote: > You're a sick man... trucks are for hauling race cars... not pulling > them in the twisties! Won't solve the handling, but I ws thinking of > an exhaust... > <shrug> My Duramax Diesel Crew Cab Sierra has hot laps in at Sears Point, Laguna Seca, and Thunderhill. Turns out that people will pull over when they see that big "GMC" badge in their mirror. :) - Mark ----- [EMAIL PROTECTED] ------------------------------ Date: Fri, 19 Mar 2004 10:26:57 -0800 (PST) From: Andre Yew <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: e46 330i Understeer Message-ID: <[EMAIL PROTECTED]> On Thu, 18 Mar 2004, Mark Dadgar wrote: > My Duramax Diesel Crew Cab Sierra has hot laps in at Sears Point, > Laguna Seca, and Thunderhill. And I've been chased down at Buttonwillow by an instructor in a Toyota Tacoma --- must be that magical 4-wheel drive giving him extra traction. ;-) --Andre ------------------------------ Date: Fri, 19 Mar 2004 08:26:59 -0600 From: "Jamie Howton" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: Paucity of BMW computer tuning Message-ID: <[EMAIL PROTECTED]> As far as I have been able to determine there is no way to control VANOS activation with the SMT-6. The way I have it installed is that the computer controls the MAS and crankshaft position sensor signals. You can also control the lambda signal although the sugested wiring diagram for the 3.0L M3 does not make use of it. I did tap into the lambda sensor wire but only to allow the SMT-6 to monitor the signal, not to modify it. It does do data logging, so my plan was to roughly tune the ignition and fuel curves using the signal from the stock lambda sensor before heading to the dyno for wideband lambda dyno testing. I found out about the SMT-6 from a friend who has the Dastek unit installed in his Porsche 928 S4. He has been playing with his setup for a couple of years. The Dastek setup cost him around $900 not including dyno tuning and it doesn't have all of the features of the SMT-6 (no data logging or lambda monitoring). Regards Jamie -----Original Message----- From: Marco Romani [mailto:[EMAIL PROTECTED] Sent: Thursday, March 18, 2004 6:22 PM To: [EMAIL PROTECTED] Subject: Re: [UUC] Paucity of BMW computer tuning Interesting - is there an configurable output for VANOS activation? A quick glance at their website didn't show anything on variable valve timing installs, but I only made a quick glance. while we're at it here's another alternative http://www.dastek.co.za/ thanks Marco ------------------------------ Date: Fri, 19 Mar 2004 09:14:34 -0800 From: "Marco Romani" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: Paucity of BMW computer tuning Message-ID: <[EMAIL PROTECTED]> thanks. M -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jamie Howton Sent: Friday, March 19, 2004 6:27 AM To: [EMAIL PROTECTED] Subject: Re: [UUC] Paucity of BMW computer tuning As far as I have been able to determine there is no way to control VANOS activation with the SMT-6. The way I have it installed is that the computer controls the MAS and crankshaft position sensor signals. You can also control the lambda signal although the sugested wiring diagram for the 3.0L M3 does not make use of it. I did tap into the lambda sensor wire but only to allow the SMT-6 to monitor the signal, not to modify it. It does do data logging, so my plan was to roughly tune the ignition and fuel curves using the signal from the stock lambda sensor before heading to the dyno for wideband lambda dyno testing. I found out about the SMT-6 from a friend who has the Dastek unit installed in his Porsche 928 S4. He has been playing with his setup for a couple of years. The Dastek setup cost him around $900 not including dyno tuning and it doesn't have all of the features of the SMT-6 (no data logging or lambda monitoring). Regards Jamie -----Original Message----- From: Marco Romani [mailto:[EMAIL PROTECTED] Sent: Thursday, March 18, 2004 6:22 PM To: [EMAIL PROTECTED] Subject: Re: [UUC] Paucity of BMW computer tuning Interesting - is there an configurable output for VANOS activation? A quick glance at their website didn't show anything on variable valve timing installs, but I only made a quick glance. while we're at it here's another alternative http://www.dastek.co.za/ thanks Marco Search the ARCHIVES:http://www.mail-archive.com/[EMAIL PROTECTED] __________________________________________________________________________ In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate Short Shifter - accept no substitutes! 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ Date: Fri, 19 Mar 2004 11:03:57 -0500 (GMT-05:00) From: Brian Daley <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: Paucity of BMW computer tuning Message-ID: <[EMAIL PROTECTED]> Marco, I'm sure there's nothing specific as it's a generic product that can be used with any ECU by modifying it's input signals. I haven't downloaded their software yet to see what kind of adjustments it offers but if it includes RPM-activated switches you could probably use them to switch VANOS on above a given RPM. I'm pretty sure that at least on my 94 M50 the VANOS is just on-off anyway. Brian '94 325ic -----Original Message----- From: Marco Romani <[EMAIL PROTECTED]> Sent: Mar 18, 2004 7:21 PM To: [EMAIL PROTECTED] Subject: Re: [UUC] Paucity of BMW computer tuning Interesting - is there an configurable output for VANOS activation? A quick glance at their website didn't show anything on variable valve timing installs, but I only made a quick glance. while we're at it here's another alternative http://www.dastek.co.za/ thanks Marco -----Original Message----- From: [EMAIL PROTECTED] [ There _are_ other custom tuning options for BMWs. I bought the SMT-6 piggyback computer http://www.perfectpower.com/products/smt6.asp for $335. I only recently got around to installing it in my 95 M3 and haven't had a chance to get it on a dyno yet so it currently isn't altering the fuel mappings at all. Installation was fairly easy and I ran a serial cable into my glovebox so that I can connect a laptop and make adjustments from inside the car. The price was right and if I can pick up a couple of extra HP without blowing anything up, I'll be happy. ------------------------------ Date: Fri, 19 Mar 2004 12:29:53 -0800 (PST) From: Brian Daley <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: Paucity of BMW computer tuning Message-ID: <[EMAIL PROTECTED]> Jamie, I guess short of going to a standalone system you can do some useful things with that setup. In general I'm not a big fan of tricking the ECU into doing what you want by altering it's sensor inputs. Giving the ECU false information about the operating conditions tends to have undesirable side-effects. Example: It's common practice to use a "calibrated" MAF sensor when installing larger-than-stock injectors in a Mustang. The voltage output of the MAF is basically scaled by stock injector size/new injector size so the ECU thinks there's less air coming in and commands a shorter injector pulsewidth. The net result is that the larger injector at the shorter pulsewidth delivers approximately the same amount of fuel that the stock injector would have given the true airflow values. This works fine, up to a point. The side effect is that it alters the load calculation which has all kinds of consequences, in particular spark advance. Because the ECU is being tricked into thinking much less air is coming in it therefore thinks load is much lower than it really is resulting in too much spark advance which can result in detonation. Brian '94 325ic -----Original Message----- From: Jamie Howton <[EMAIL PROTECTED]> Sent: Mar 18, 2004 7:06 PM To: [EMAIL PROTECTED] Subject: Re: [UUC] Paucity of BMW computer tuning There _are_ other custom tuning options for BMWs. I bought the SMT-6 piggyback computer http://www.perfectpower.com/products/smt6.asp for $335. I only recently got around to installing it in my 95 M3 and haven't had a chance to get it on a dyno yet so it currently isn't altering the fuel mappings at all. Installation was fairly easy and I ran a serial cable into my glovebox so that I can connect a laptop and make adjustments from inside the car. The price was right and if I can pick up a couple of extra HP without blowing anything up, I'll be happy. Regards Jamie Howton 2002 330i 1995 M3 ------------------------------ Date: Fri, 19 Mar 2004 08:31:22 -0800 (PST) From: Gary Derian <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: Paucity of BMW computer tuning Message-ID: <[EMAIL PROTECTED]> VaNoS control is more complex than that. Throttle and rpm are used. Tpically low overlap at or near idle and at high rpm full throttle. High overlap during mid rpm ranges. Later dual VaNoS are contunuous control of both cams with position feedback. Gary Derian --- Brian Daley <[EMAIL PROTECTED]> wrote: > Marco, > > I'm sure there's nothing specific as it's a generic > product that can be used with any ECU by modifying > it's input signals. I haven't downloaded their > software yet to see what kind of adjustments it > offers but if it includes RPM-activated switches you > could probably use them to switch VANOS on above a > given RPM. I'm pretty sure that at least on my 94 > M50 the VANOS is just on-off anyway. > > Brian > '94 325ic ------------------------------ Date: Fri, 19 Mar 2004 06:52:15 -0800 (PST) From: Gary Derian <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: Tires That Don't Wander? Message-ID: <[EMAIL PROTECTED]> Yes. More toe-in helps, but can only do so much. One must try different toe settings to know what works. Toe is easily set at home. Gary Derian --- JSN <[EMAIL PROTECTED]> wrote: > sooo...can we derive from this that extra negative > camber tends to inhibit > good tracking? Can you compensate via a toe > adjustment? If you add a one > to two degrees of neg camber to a street setup, what > (if any) would the > compensating toe typically be? > > cheers! > > Jeff ------------------------------ Date: Fri, 19 Mar 2004 09:53:38 -0500 From: "Weimer, Matt J." <[EMAIL PROTECTED]> To: "BMW Digest" <[EMAIL PROTECTED]> Subject: Re: 35 Pin 081 DME (early "i") w/ ETA Harness?? Message-ID: <[EMAIL PROTECTED]> Mitchell, I own an early Euro 325i with the 081 DME and the idle circuit is exactly like those on the early U.S. 325i's. It uses the same ICV, intake boot, bypass hose, etc. You are also correct in stating that it uses the same injectors as all of the U.S. 325i's. I am not familiar enough with the "e" harness to understand the differences in the idle control circuit. Am I correct in stating the ICV is in a different location and the idle can be somewhat adjusted? Is there a separate idle control unit like a L-Jet car? I assume you are trying to convert your "e" to an "i" with minimal cost? I have been through the entire engine harness and all of the associated devices trying to track down what I call a slight stumble between 2-3k rpm. If you need any help/pics/etc. let me know. Matt Weimer Hoosier Chapter Date: Thu, 18 Mar 2004 23:41:49 -0500 From: "Mitchell Morrison" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Subject: 35 Pin 081 DME (early "i") w/ ETA Harness?? Message-ID: <[EMAIL PROTECTED]> The 081 early "i" DME has 35 pins like the ETA DME Uses the same reference senders as the ETA and uses standard "i" injectors according to the HTK. Can find no reference on what the 081 uses for idle control. I assume it's integrated like later "i's. My question is....Can I run the 081 DME w/ the US ETA harness? ------------------------------ Date: Fri, 19 Mar 2004 10:03:51 -0500 From: "Dorffer, Rich" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Subject: [E46] 328i - UUC Sport Exhaust Message-ID: <[EMAIL PROTECTED]> SMiller says > > Frankly, Jesse, between American Chopper and Monster Garage, > I'm surprised you have time to work on your BMW. Now you have gone and insulted Jesse, everyone knows that the Teutels are "American Chopper" and Jesse does "Monster Garage" (and now some other spin offs). Some would say the Teutels are just a bunch of hacks...right Mark D? :-) Later, Rich - scared I was thinking along the same lines as Scott in my response.... ------------------------------ Date: Fri, 19 Mar 2004 13:13:41 -0500 From: Ron Katona <[EMAIL PROTECTED]> To: bmwuuc digest <[EMAIL PROTECTED]> Subject: E34 535i Towing Capacity? Message-ID: <[EMAIL PROTECTED]> Anyone ever towed with an E34 535i (5-speed)? I need to know if it's possible to tow about 2200 lb with one. The owner's manual has no info. I found a Da'Lan hitch for E34s on line, but it's rated at 1500 lb. Anyone know of any setups for the E34 that would work for the weight I'm looking at, or is this just a stupid idea to begin with? -- Ron Katona ------------------------------ Date: Fri, 19 Mar 2004 10:30:59 -0800 (PST) From: Gary Derian <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: E34 535i Towing Capacity? Message-ID: <[EMAIL PROTECTED]> BMW rates E34s to tow 3500 lb. BMW USA avoids tow ratings. The DaLan hitch won't cut it. There are hitch mounting holes behind the rear bumper. A custom made receiver hitch will do the job. The factory hitch is very nice but very expensive, $800 or more. Gary Derian --- Ron Katona <[EMAIL PROTECTED]> wrote: > Anyone ever towed with an E34 535i (5-speed)? I need > to know if it's > possible to tow about 2200 lb with one. The owner's > manual has no info. > I found a Da'Lan hitch for E34s on line, but it's > rated at 1500 lb. > Anyone know of any setups for the E34 that would > work for the weight I'm > looking at, or is this just a stupid idea to begin > with? > -- > Ron Katona ------------------------------ Date: Fri, 19 Mar 2004 11:07:15 -0800 From: Kurt Zimmerman <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: E34 535i Towing Capacity? Message-ID: <[EMAIL PROTECTED]> I agree with Gary (as if you needed a second opinion). The Da'Lan hitch mounts to the spare wheel well and your bumper carrier. Effectively removing your 5mph rear bumper. Personally, I wouldn't try pulling more than 1000 lb with the Da'Lan set up, but that's just a gut feeling, as I have no evidence to support that 1500lbs would do harm. If you have access to an ETK, look at european parts 71 60 1 134 218 or 71 60 1 134 373. These are the factory hitches, and give you a clue as to where to mount a custom receiver hitch, if you were to have one made. Kurt Gary Derian wrote: >BMW rates E34s to tow 3500 lb. BMW USA avoids tow >ratings. The DaLan hitch won't cut it. There are >hitch mounting holes behind the rear bumper. A custom >made receiver hitch will do the job. > >The factory hitch is very nice but very expensive, >$800 or more. > >Gary Derian > >--- Ron Katona <[EMAIL PROTECTED]> wrote: > > >>Anyone ever towed with an E34 535i (5-speed)? I need >>to know if it's >>possible to tow about 2200 lb with one. The owner's >>manual has no info. >>I found a Da'Lan hitch for E34s on line, but it's >>rated at 1500 lb. >>Anyone know of any setups for the E34 that would >>work for the weight I'm >>looking at, or is this just a stupid idea to begin >>with? >>-- >>Ron Katona >> >> > >Search the ARCHIVES:http://www.mail-archive.com/[EMAIL PROTECTED] > > >__________________________________________________________________________ >In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > >UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate >Short Shifter - accept no substitutes! >908-874-9092 . http://www.uucmotorwerks.com > > > > ------------------------------ Date: Fri, 19 Mar 2004 11:30:47 -0800 From: "Marco Romani" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re: E34 535i Towing Capacity? Message-ID: <[EMAIL PROTECTED]> Ron, What are you towing and how far? If it's not that far maybe renting those monster trucks from Home Despot would be an alternative, I think they have a hitch mount built in. Otherwise U-haul, or some rental car places rent Ford trucks. Marco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kurt Zimmerman Sent: Friday, March 19, 2004 11:07 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: [UUC] E34 535i Towing Capacity? I agree with Gary (as if you needed a second opinion). The Da'Lan hitch mounts to the spare wheel well and your bumper carrier. Effectively removing your 5mph rear bumper. Personally, I wouldn't try pulling more than 1000 lb with the Da'Lan set up, but that's just a gut feeling, as I have no evidence to support that 1500lbs would do harm. If you have access to an ETK, look at european parts 71 60 1 134 218 or 71 60 1 134 373. These are the factory hitches, and give you a clue as to where to mount a custom receiver hitch, if you were to have one made. Kurt Gary Derian wrote: >BMW rates E34s to tow 3500 lb. BMW USA avoids tow >ratings. The DaLan hitch won't cut it. There are >hitch mounting holes behind the rear bumper. A custom >made receiver hitch will do the job. > >The factory hitch is very nice but very expensive, >$800 or more. > >Gary Derian > >--- Ron Katona <[EMAIL PROTECTED]> wrote: > > >>Anyone ever towed with an E34 535i (5-speed)? I need >>to know if it's >>possible to tow about 2200 lb with one. The owner's >>manual has no info. >>I found a Da'Lan hitch for E34s on line, but it's >>rated at 1500 lb. >>Anyone know of any setups for the E34 that would >>work for the weight I'm >>looking at, or is this just a stupid idea to begin >>with? >>-- >>Ron Katona >> >> > >Search the ARCHIVES:http://www.mail-archive.com/[EMAIL PROTECTED] > > >__________________________________________________________________________ >In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > >UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate >Short Shifter - accept no substitutes! >908-874-9092 . http://www.uucmotorwerks.com > > > > Search the ARCHIVES:http://www.mail-archive.com/[EMAIL PROTECTED] __________________________________________________________________________ In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate Short Shifter - accept no substitutes! 908-874-9092 . http://www.uucmotorwerks.com ------------------------------ Date: Fri, 19 Mar 2004 10:57:15 -0800 (PST) From: David Hall <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: <E30> <M3> Advice Message-ID: <[EMAIL PROTECTED]> Well, I never really gave an E30 M3 much thought, but I've seen several for sale recently, and it's got me thinking. However, I know nothing of these cars...I've owned a couple of E30 325's, several E36 M3's and an E46 M3, but this seems to be a very different car (what, only 4 cylinders!) Specifically, I'm looking for what models were available in Europe, when, and what were the specifications. For example, there have been two on E-Bay here in France : http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=2465897830 http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=2467543744 The first one unfortunately sold, but as luck would have it, I'll be near Vernon in two weeks on business, so the second one is of interest as well. Any good websites out there with the history of the E30 M3, and especially what to look out for on a 15+ year old car(!) with ~150k km? Thanks in advance for any advice. Dave Hall Clermont-Ferrand France __________________________________ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com ------------------------------ End of [bmwuucdigest] digest(15 messages) **********
