The BMW UUC Digest Volume 3 : Issue 244 : "text" Format Messages in this Issue: Re: <E34> Engine Decision E34 / 535i airbox capacity Re: E34 / 535i airbox capacity Re: E34 / 535i airbox capacity Re: E34 / 535i airbox capacity Re: E34 / 535i airbox capacity <OT> Scuderi Engine Re: <OT> Scuderi Engine OT - video of what happens when you don't Re: MCoupe Radio Problem
---------------------------------------------------------------------- Date: Sun, 27 Aug 2006 17:44:33 -0400 From: KMS- Brett Anderson <[EMAIL PROTECTED]> To: UUC Digest <[email protected]> Subject: Re: <E34> Engine Decision Message-ID: <[EMAIL PROTECTED]> [EMAIL PROTECTED] wrote: > One other thing that popped up is that the timing chain guides are > completely destroyed, as in, came out in pieces. Mr. Mechanic said he > normally only sees that on 200K+ mile engines, not ones with only 118K > miles. The Carfax report on the car indicated no odometer roll-back, > although it is possible that the engine in the car now is not the original, > who knows? The VIN is on the back of the cylinder head. Brett Anderson KMS ------------------------------ Date: Sun, 27 Aug 2006 22:03:45 -0700 From: "JS Nord" <[EMAIL PROTECTED]> To: "UUC Digest" <[email protected]> Subject: E34 / 535i airbox capacity Message-ID: <[EMAIL PROTECTED]> Anyone have any experience with how constricting the E34 / 535 air box is? I have a modified motor (3.7L, bumped compression, cam and a MAF). Recently, I added headers to the car and it improved the mid range nicely (reversion fix, I know). I'm wondering if there's any options for the airbox. It's curious that Dinan and others have chosen not to offer CAI kits for this car. Makes you think that the current box is quite sufficient. Or...is it when you have an upgraded motor? Any suggestions based on practical experience? Or, ways to determine if there's a restriction in the current box? TIA, Jeff 90 535i, a few mods ------------------------------ Date: Mon, 28 Aug 2006 09:41:17 -0400 From: "Gary Derian" <[EMAIL PROTECTED]> To: "JS Nord" <[EMAIL PROTECTED]>, "UUC Digest" <[email protected]> Subject: Re: E34 / 535i airbox capacity Message-ID: <[EMAIL PROTECTED]> Plumb a sensitive vacuum gauge into the intake, downstream of the box. Use a length of clear vinyl tube filled with water if you have no gauge. Gary Derian > Anyone have any experience with how constricting the E34 / 535 air box is? > I have a modified motor (3.7L, bumped compression, cam and a MAF). > Recently, I added headers to the car and it improved the mid range nicely > (reversion fix, I know). > > I'm wondering if there's any options for the airbox. It's curious that > Dinan and others have chosen not to offer CAI kits for this car. Makes > you think that the current box is quite sufficient. Or...is it when you > have an upgraded motor? > > Any suggestions based on practical experience? Or, ways to determine if > there's a restriction in the current box? > > TIA, > > Jeff > 90 535i, a few mods > 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: Mon, 28 Aug 2006 10:56:22 -0700 From: "JS Nord" <[EMAIL PROTECTED]> To: "Gary Derian" <[EMAIL PROTECTED]>, "UUC Digest" <[email protected]> Subject: Re: E34 / 535i airbox capacity Message-ID: <[EMAIL PROTECTED]> Rob's response noted on the stock airbox being considered fine for all applications... That said... Gary - if one was to plumb in a vacuum gauge like this to the intake track, how do you interpret the values you observe? Or, in otherwords, at what point does the data suggest that you might have a constriction? Curious on the theory if someone would like to explain.. Jeff ----- Original Message ----- From: "Gary Derian" <[EMAIL PROTECTED]> To: "JS Nord" <[EMAIL PROTECTED]>; "UUC Digest" <[email protected]> Sent: Monday, August 28, 2006 6:41 AM Subject: Re: [UUC] E34 / 535i airbox capacity > Plumb a sensitive vacuum gauge into the intake, downstream of the box. > Use a length of clear vinyl tube filled with water if you have no gauge. > Gary Derian > >> Anyone have any experience with how constricting the E34 / 535 air box >> is? I have a modified motor (3.7L, bumped compression, cam and a MAF). >> Recently, I added headers to the car and it improved the mid range nicely >> (reversion fix, I know). >> >> I'm wondering if there's any options for the airbox. It's curious that >> Dinan and others have chosen not to offer CAI kits for this car. Makes >> you think that the current box is quite sufficient. Or...is it when you >> have an upgraded motor? >> >> Any suggestions based on practical experience? Or, ways to determine if >> there's a restriction in the current box? >> >> TIA, >> >> Jeff >> 90 535i, a few mods >> 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: Mon, 28 Aug 2006 14:38:06 -0400 From: "Gary Derian" <[EMAIL PROTECTED]> To: "JS Nord" <[EMAIL PROTECTED]>, "UUC Digest" <[email protected]> Subject: Re: E34 / 535i airbox capacity Message-ID: <[EMAIL PROTECTED]> It depends on how anal you are. I'd guess that a few inches of water column is insignificant. A foot of water is about 1 psi. If you have more than a foot of water it is time to think about improvements. Check several places so see which part contributes the most, air filter, inlet trumpet, connecting hose, etc. Make sure the pressure probe is perpendicular to the air flow, otherwise flow inertia will affect the readings (think pitot tube). You will see maximum vacuum at your peak hp rpm. While you're at it, measure your exhaust backpressure. There, 1 to 2 psi is pretty good. Above 3 to 4 is time to improve. Gary Derian > Rob's response noted on the stock airbox being considered fine for all > applications... > > That said... > > Gary - if one was to plumb in a vacuum gauge like this to the intake > track, how do you interpret the values you observe? Or, in otherwords, at > what point does the data suggest that you might have a constriction? > > Curious on the theory if someone would like to explain.. > > Jeff > > ----- Original Message ----- > From: "Gary Derian" <[EMAIL PROTECTED]> > To: "JS Nord" <[EMAIL PROTECTED]>; "UUC Digest" > <[email protected]> > Sent: Monday, August 28, 2006 6:41 AM > Subject: Re: [UUC] E34 / 535i airbox capacity > > >> Plumb a sensitive vacuum gauge into the intake, downstream of the box. >> Use a length of clear vinyl tube filled with water if you have no gauge. >> Gary Derian >> >>> Anyone have any experience with how constricting the E34 / 535 air box >>> is? I have a modified motor (3.7L, bumped compression, cam and a MAF). >>> Recently, I added headers to the car and it improved the mid range >>> nicely (reversion fix, I know). >>> >>> I'm wondering if there's any options for the airbox. It's curious that >>> Dinan and others have chosen not to offer CAI kits for this car. Makes >>> you think that the current box is quite sufficient. Or...is it when you >>> have an upgraded motor? >>> >>> Any suggestions based on practical experience? Or, ways to determine if >>> there's a restriction in the current box? >>> >>> TIA, >>> >>> Jeff >>> 90 535i, a few mods >>> 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 >> > > 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: Mon, 28 Aug 2006 09:57:59 -0400 From: "Rob Levinson * UUC Motorwerks" <[EMAIL PROTECTED]> To: <[email protected]> Subject: Re: E34 / 535i airbox capacity Message-ID: <[EMAIL PROTECTED]> E34 airboxes are _not_ restrictive (except for Swedish market cars, but that's another story). They also have a built-in venturi for enhancing intake characteristics. I would simply leave it alone and make sure you have a good, clean paper or oild foam (NEVER cotton gauze) filter. If a factory airbox is good enough for a Euro M5 3.8l running past 7200rpm, then it's good enough for a 3.7l M30. If that's not enough convincing, I'll give my other example... my ex-M5 Turbo, 3.88l and about 12psi, used a factory airbox. All with paper filters. Sometimes the factory part is the best part. - Rob ----- Original Message ----- From: "JS Nord" <[EMAIL PROTECTED]> Subject: [UUC] E34 / 535i airbox capacity > Anyone have any experience with how constricting the E34 / 535 air box is? > I have a modified motor (3.7L, bumped compression, cam and a MAF). > Recently, I added headers to the car and it improved the mid range nicely > (reversion fix, I know). > > I'm wondering if there's any options for the airbox. It's curious that > Dinan and others have chosen not to offer CAI kits for this car. Makes you > think that the current box is quite sufficient. Or...is it when you have an > upgraded motor? > > Any suggestions based on practical experience? Or, ways to determine if > there's a restriction in the current box? > > TIA, > > Jeff > 90 535i, a few mods ------------------------------ Date: Mon, 28 Aug 2006 10:34:27 -0500 From: "Marc Plante" <[EMAIL PROTECTED]> To: [email protected] Subject: <OT> Scuderi Engine Message-ID: <[EMAIL PROTECTED]> Slightly off topic mention of new engine technology mentioned in Wired. Anyone familiar with Scuderi engines? http://www.wired.com/news/technology/autotech/0,71648-0.html?tw=wn_index_6 Marc Plante E36 M3/4 (still an inline 6) Vienna, VA ------------------------------ Date: Mon, 28 Aug 2006 12:06:03 -0400 From: "Gary Derian" <[EMAIL PROTECTED]> To: "Marc Plante" <[EMAIL PROTECTED]>, <[email protected]> Subject: Re: <OT> Scuderi Engine Message-ID: <[EMAIL PROTECTED]> There seems to be some advantages by separating the compression function from the expansion function. I wonder if the combustion is fast enough to burn efficiently with ATDC ignition, but there is no reason the charge air can't be fed slightly before that. Having a two stroke power piston offsets a separate compression piston. The air hybrid function is interesting but would have very limited storage potential. There is certainly no shortage of "revolutionary new technology" in this world. Gary Derian > Slightly off topic mention of new engine technology mentioned in Wired. > Anyone familiar with Scuderi engines? > > http://www.wired.com/news/technology/autotech/0,71648-0.html?tw=wn_index_6 > > Marc Plante > E36 M3/4 (still an inline 6) > Vienna, VA > > 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: Mon, 28 Aug 2006 15:08:29 -0400 From: "Dennis Liu" <[EMAIL PROTECTED]> To: "'911/993/996'" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[email protected]>, "Ferrari List" <[EMAIL PROTECTED]> Subject: OT - video of what happens when you don't Message-ID: <[EMAIL PROTECTED]> Torque the lug nuts on your race car properly.... http://www.youtube.com/watch?v=ugPPvDQ4ln4 (pretty amusing!) Vty, --Dennis ------------------------------ Date: Mon, 28 Aug 2006 13:14:15 -0700 From: "Gordo, Ping" <[EMAIL PROTECTED]> To: <[email protected]> Subject: Re: MCoupe Radio Problem Message-ID: <[EMAIL PROTECTED]> Gruppe: My battery on my 2002 MCoupe died, hence I needed to input the code to bring it back to life. It didn't take the first time so the dealer advised to wait 1.5 hours (keeping the radio on) and then re-enter the code. It still wouldn't take. Any ideas aside from maybe I have the wrong code? (I'm having the dealer check that now.) TIA Pingger ------------------------------ End of [bmwuucdigest] digest(10 messages) **********
