The BMW UUC Digest Volume 3 : Issue 179 : "text" Format Messages in this Issue: Re: Shop in Loveland (Tunnell Stories) Re: Shop in Loveland (Tunnell Stories) Re: (Tunnell Stories) Re: Shop in Loveland (Tunnell Stories) Re: lifts Re: lifts Re: lifts OBDCOM Re: OBDCOM Any one familiar with Concord Motorsport
---------------------------------------------------------------------- Date: Fri, 23 Jun 2006 09:33:26 -0700 (GMT-07:00) From: Kirk Lachman <[EMAIL PROTECTED]> To: BMW UUC Digest <[email protected]> Subject: Re: Shop in Loveland (Tunnell Stories) Message-ID: <[EMAIL PROTECTED]> Bimmerhaus is the place to go in the greater Denver area. No exceptions. They'll probably tell you that every time an 850 visits the shop (any shop) for an issue it is going to be a minimum of $1k. :-) As for someone paying Tunnell, yes, it is true. Remember though, the people who paid the Tunnells (both Bob and Patty worked there at one time), make films. Not just any films. Films about people doing crazy stuff. Warren Miller films, to be specific (for the gutter minded out there). Nothing like hanging out the side of a helicopter at 11k feet filming someong skiing off a 200' cliff and other *fun*! :-) Cheers, Kirk Lachman Sin City Chapter still licking wounds from butt-kicking received at hands of Bob T. at national tour autocross events... (waaaaay back when....). ------------------------------ Date: Fri, 23 Jun 2006 09:41:24 -0700 From: [EMAIL PROTECTED] To: Kirk Lachman <[EMAIL PROTECTED]> Cc: BMW UUC Digest <[email protected]> Subject: Re: Shop in Loveland (Tunnell Stories) Message-ID: <[EMAIL PROTECTED]> How do I get a job like that? Sure beats losing my mind fixing sicko computers. Barry > Nothing like hanging out the side of a helicopter at 11k feet filming > someong skiing off a 200' cliff and other *fun*! :-) > ------------------------------ Date: Fri, 23 Jun 2006 14:10:04 -0400 From: [EMAIL PROTECTED] Cc: BMW UUC Digest <[email protected]> Subject: Re: (Tunnell Stories) Message-ID: <[EMAIL PROTECTED]> Bob was the general manager. Matt Murray ----- Original Message ----- From: [EMAIL PROTECTED] Date: Friday, June 23, 2006 12:41 pm Subject: Re: [UUC] Shop in Loveland (Tunnell Stories) > How do I get a job like that? Sure beats losing my mind fixing > sicko computers. > Barry ------------------------------ Date: Fri, 23 Jun 2006 09:51:16 -0700 (GMT-07:00) From: Kirk Lachman <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: BMW UUC Digest <[email protected]> Subject: Re: Shop in Loveland (Tunnell Stories) Message-ID: <[EMAIL PROTECTED]> Well, Bob and Patty didn't do the filming, so I don't know. However, it does sound a bit less stressful than your current job. -----Original Message----- >From: [EMAIL PROTECTED] >Sent: Jun 23, 2006 9:41 AM >To: Kirk Lachman <[EMAIL PROTECTED]> >Cc: BMW UUC Digest <[email protected]> >Subject: Re: [UUC] Shop in Loveland (Tunnell Stories) > >How do I get a job like that? Sure beats losing my mind fixing sicko >computers. >Barry > >> Nothing like hanging out the side of a helicopter at 11k feet filming >> someong skiing off a 200' cliff and other *fun*! :-) >> ------------------------------ Date: Fri, 23 Jun 2006 09:39:16 -0700 (GMT-07:00) From: Kirk Lachman <[EMAIL PROTECTED]> To: BMW UUC Digest <[email protected]> Cc: [EMAIL PROTECTED] Subject: Re: lifts Message-ID: <[EMAIL PROTECTED]> Jim Bassett uttered: And just as happy, I'm sure, with the reaction he gets from unsuspecting guests :-) No one expects a lift in my garage <in best Monty Python Spanish Inquisition sketch voice> Remember, it's a safety issue. That's why I got it. Really. :-) Cheers, Kirk Lachman Sin City Chapter ------------------------------ Date: Fri, 23 Jun 2006 09:44:10 -0700 From: [EMAIL PROTECTED] To: Kirk Lachman <[EMAIL PROTECTED]> Cc: BMW UUC Digest <[email protected]>, [EMAIL PROTECTED] Subject: Re: lifts Message-ID: <[EMAIL PROTECTED]> Does the lift confess when you poke it with a soft cushion (with the stuffing up one end, of course)?lol Barry Kirk Lachman wrote: >Jim Bassett uttered: And just as happy, I'm sure, with the reaction he gets >from unsuspecting guests :-) > >No one expects a lift in my garage <in best Monty Python Spanish Inquisition >sketch voice> > >Remember, it's a safety issue. That's why I got it. Really. :-) > >Cheers, > >Kirk Lachman >Sin City Chapter > > >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, 23 Jun 2006 09:44:31 -0700 (PDT) From: "Jim Bassett" <[EMAIL PROTECTED]> To: [email protected] Subject: Re: lifts Message-ID: <[EMAIL PROTECTED]> On Fri, June 23, 2006 9:39 am, Kirk Lachman said: > No one expects a lift in my garage <in best Monty Python Spanish > Inquisition sketch voice> ROTFL! Nicely done, Kirk! :-) > Remember, it's a safety issue. That's why I got it. Really. :-) Of course it is, that's obvious :-) Jim Bassett ------------------------------ Date: Fri, 23 Jun 2006 11:33:13 -0700 From: [EMAIL PROTECTED] To: "[uucdigest]" <[email protected]>, bmw digest <[EMAIL PROTECTED]> Subject: OBDCOM Message-ID: <[EMAIL PROTECTED]> Anyone familiar with using OBDCOM? I'm a new user of it, and am trying to see what parameters best reflect differences in fuel economy and power without needing to go to the real dyno or trust the butt dyno every time I make a tuning change. I'm trying to dial in the fuel pressure on project that uses 24# injectors and a larger diameter tube for the stock MAF sensor, and objectively compare the stock intake boot vs a larger diameter Turbohoses boot. Time saving tips, general methodology, and which engine engine parameters, such as manifold pressure and O2 sensor voltages, best correlate to power and economy changes are most appreciated. Current specific scenario: a. air tube: I made a new tube from a slightly larger diameter than the previous larger tube, going up from 3-1/4" diameter to the same 3-1/2" as the euro MAF tube has. The stock sensor element isn't quite long enough to reach the midpoint of the diameter, so its a few mm above center. (not sure if this is relevant but is different than before). The airbox is the same UUC Viper that smoothed out the air/fuel curve than any other airbox or CAI I've seen dynoed, so that the larger tube setup rarely flips CEs anymore. b. intake boot: I had tried a 3.5" turbohose intake boot previously with inconclusive results. With the 3.5"maf tube the better breathing >6000rpm is noticeable vs the stock boot. c. economy vs. power: 1. Power: With either intake boot on the new 3.5" diameter tube, power seems to have improved within the limits of what my inaccurate speedo says is 60 to 80mph (actual about 64 to 85) 3rd gear timing. Mostly on the 2.9 second side, sometimes on the 3.0 side. With the previous tube, it was mostly 3.0. Back when the car was stock and younger it was ~3.3-3.4. 2. Economy: The real time liters/100km reading on hidden function 2 on the OBC is showing ~9.5 -10 liters/100km. the previous tube gave in the 7-8 range on either of the intake boots. Previously, at the sweet spot on fule pressure, best WOT power also got best highway cruising economy, ~26-28mpg at 80 on cruise control, depending on temperature, moisture, type of gas, etc. I tried upping the fuel pressure a touch, economy gained about to the low 9 range, but increasing more resulted in some high RPM flat spots. Lowering the pressure is dangerous without measurements since runing too lean is nothing safe to try. From previous dyno work, dialing in the air/fuel via fuel pressure is very effective, but _touchy and sensitive, not to be guessed at without some sort of measurements. Only a few psi can be the difference difference between 15 vs 12 to 1, and the sweet spot for best power is within less than half a psi. So I'm looking for engine parameters to tell me that sweet spot with the new tube and boot setup. tia, Barry ------------------------------ Date: Fri, 23 Jun 2006 19:20:40 -0400 From: "Gary Derian" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[email protected]> Subject: Re: OBDCOM Message-ID: <[EMAIL PROTECTED]> The best thing to do is tune for what the engine likes. A wide band O2 sensor is far better for feedback because best economy is around 16:1 and best power is around 12.5:1. The narrow band sensor only knows 14.7 so it isn't very useful for power or economy. It was designed to operate the engine in the range that provides the best feedgas for the catalyst. When cruise fuel is leaned out, ignition timing must be added to compensate for the slower flame speed. Optimum lean cruise gives about 10% better economy than stoichiometric cruise. Running too lean during cruise will cause no harm. Cylinder temperatures peak at stoichiometric and cool on either side. Gary Derian ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "[uucdigest]" <>; "bmw digest" <[EMAIL PROTECTED]> Sent: Friday, June 23, 2006 2:33 PM Subject: [UUC] OBDCOM > Anyone familiar with using OBDCOM? I'm a new user of it, and am > trying to see what parameters best reflect differences in fuel economy and > power without needing to go to the real dyno or trust the butt dyno every > time I make a tuning change. > I'm trying to dial in the fuel pressure on project that uses 24# > injectors and a larger diameter tube for the stock MAF sensor, and > objectively compare the stock intake boot vs a larger diameter Turbohoses > boot. > > Time saving tips, general methodology, and which engine engine > parameters, such as manifold pressure and O2 sensor voltages, best > correlate to power and economy changes are most appreciated. > > Current specific scenario: > a. air tube: > I made a new tube from a slightly larger diameter than the previous larger > tube, going up from 3-1/4" diameter to the same 3-1/2" as the euro MAF > tube has. The stock sensor element isn't quite long enough to reach the > midpoint of the diameter, so its a few mm above center. (not sure if this > is relevant but is different than before). The airbox is the same UUC > Viper that smoothed out the air/fuel curve than any other airbox or CAI > I've seen dynoed, so that the larger tube setup rarely flips CEs anymore. > b. intake boot: > I had tried a 3.5" turbohose intake boot previously with inconclusive > results. With the 3.5"maf tube the better breathing >6000rpm is > noticeable vs the stock boot. > c. economy vs. power: > 1. Power: With either intake boot on the new 3.5" diameter tube, > power seems to have improved within the limits of what my inaccurate > speedo says is 60 to 80mph (actual about 64 to 85) 3rd gear timing. > Mostly on the 2.9 second side, sometimes on the 3.0 side. With the > previous tube, it was mostly 3.0. Back when the car was stock and younger > it was ~3.3-3.4. > 2. Economy: The real time liters/100km reading on hidden function 2 > on the OBC is showing ~9.5 -10 liters/100km. the previous tube gave in > the 7-8 range on either of the intake boots. Previously, at the sweet > spot on fule pressure, best WOT power also got best highway cruising > economy, ~26-28mpg at 80 on cruise control, depending on temperature, > moisture, type of gas, etc. > I tried upping the fuel pressure a touch, economy gained about to the > low 9 range, but increasing more resulted in some high RPM flat spots. > Lowering the pressure is dangerous without measurements since runing too > lean is nothing safe to try. From previous dyno work, dialing in the > air/fuel via fuel pressure is very effective, but _touchy and sensitive, > not to be guessed at without some sort of measurements. Only a few psi > can be the difference difference between 15 vs 12 to 1, and the sweet spot > for best power is within less than half a psi. > So I'm looking for engine parameters to tell me that sweet spot with > the new tube and boot setup. > tia, > Barry > 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, 23 Jun 2006 18:29:47 -0700 From: Harvey Chao <[EMAIL PROTECTED]> To: Bimmerheads <[EMAIL PROTECTED]>, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>, [email protected] Subject: Any one familiar with Concord Motorsport Message-ID: <[EMAIL PROTECTED]> Any experience with these folks? http://www.concordmotorsport.com/ Thanks Harvey ------------------------------ End of [bmwuucdigest] digest(10 messages) **********
