Any fellow BMW DIYers

Discussion in 'Home, Auto, Hobby and Computer Tech' started by ThreatMatrix, Jul 15, 2018.

  1. 78

    78 Dazed and Confused
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    Newer 911s are plush, so plush in fact that the purists don't like it.
     
    • jeeping8r

      jeeping8r Your car may go fast, Mine will go anywhere

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      Try working on all these things for a living. Ford lost the trans dipstick on most a few years ago, only way to put fluid in them is with a special pressurized vessel. Wife's HHR (yeah it's cheap but she likes it) also has no trans stick, have to have it at operating temp then pull a plug on side of trans while running. Don't get me started on CVT's.

      Don't like German cars at all, WAY to over-engineered IMO. Toyotas are decent but when they got nearly as big as GM sales wise I feel they've lost a bit of their reliability. Water pump in a boxster isn't too bad once you pop the seats out to get the access panel out. Some beamers have an electric water pump, And its plastic housing

      And speaking of plastics in the cooling systems of all of them, Don't these engineers realize an "Organic ACID" coolant eats the plastics? More $$$ for me :)

      Ahhh programming.... Look at EFILive on a GM and see what all can be changed, Let's just say it's real easy to hole a piston with over aggressive timing.

      And yeah I'm a Chevy guy, Too bad they don't build Jeeps
       
      • ThreatMatrix

        ThreatMatrix Feeling the Buzz
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        Have to agree on the way over engineered. Take a look at the valvetronic system in a bmw compared to a rocker arm cam shaft. Yikes.

        [​IMG]

        And the frickin' computers for everything. The battery has to be registered to the vehicle so that the ECU's can optimize power distribution. Is that really necessary?
        And I don't get the plastic parts either. Weight saving? There's a plastic gear in one of the seat mechanisms that routinely goes. WTF?
        A lot of stuff is done to meet fuel economy, EPA crap. Delete the stupid charcoal filter in the airbox. Lower temp thermostat improves engine life but hurts fuel economy. Change oil at 5k miles instead of 15k miles. I pay more for cornless gas because it's better for the engine.
         
      • 78

        78 Dazed and Confused
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        I know of only two stations near my home that sell non-ethanol and it's 90 octane. My car calls for 93.
         
      • Concrete Helmet

        Concrete Helmet Hook, Line, and Sinker
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        The non ethanol thing is not that important for cars because unlike a boat or storing gas for longer periods of time in vented tanks or systems the alky content doesn't have time to draw in the H2O which causes fuel to "separate" at the molecular level "phase separation"....Treated higher octane gas is always better in ANY engine than some gimmicky labeled 90 octane garbage.....like you said 93 or bust is best any way....unless or course if your calibration prefers a diet of 85% Corn...or 110 octane
         
      • 78

        78 Dazed and Confused
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        I remember buying 98 octane at Sunoco in the '70s. I think Amoco offered 96 back then. It all eventually settled at 93 for high test.
         
      • Concrete Helmet

        Concrete Helmet Hook, Line, and Sinker
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        Are you "brand specific" with the 93 octane you use in your R8 or do you just pull in anywhere and push the 93 button?
        I swear my Shelby runs substantially better when I pump my 93 from Shell or Chevron....7-11 and Wawa seem to leave it feeling noticeably down on power. My new Mustang doesn't seem to give a rats ass and runs like a beast on 93 from anywhere. :dunno:
         
      • 78

        78 Dazed and Confused
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        Shell only. I'm a fuel rewards member. I don't put crap brands in it.
         
      • ThreatMatrix

        ThreatMatrix Feeling the Buzz
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        So I fill 2/3rds 90 and 1/3rd 93. I end up with 91 and <3% corn.
         
      • ThreatMatrix

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        Me too but I have to go to Citgo for the corn free. Still a top tier gas but wouldn't be a first choice. Chevron is good too.
         
      • ThreatMatrix

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        You can put whatever you want in a Toyota.
         
      • jeeping8r

        jeeping8r Your car may go fast, Mine will go anywhere

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        Lower octane fuels actually burn faster, Hence why an engine may detonate (ping) excessively on lower octanes. It's actually a double edged sword, Lower octane burns faster but needs temperature and tuning concessions to use, While higher octane burns slower but allows more aggressive tuning.

        E85 runs clean and cool and can run in more than "flex fuel" engines, I may try it in my 02 2500HD with the 8.1 gas engine.

        Oh and your BMW electric valve train may be child's play compared to the 2.7 turbo 4 coming out in the new Silverado.... The CAMS actually move back and forth allowing 2 different cam profiles and an AFM cylinder deactivation feature.:headslap:

        Let's see how these pan out with folks not adhering to scheduled maintenance. See where the oil change on a Bugatti Veyron (sp?) is said to be around $21K :eek3: edit: If I can manage to do 3 or 4 of those in a year I could semi-retire :)

        Hasn't happened yet but the camshaft will be gone eventually, The gains in friction loss alone pretty much demand it with the CAFE ratings going through the roof. Much less the ability to go from a traffic jam idler to a full on race engine by flipping a switch. :woohoo:
         
      • ThreatMatrix

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        CAFE is the devil no doubt. My friends new JEEP shuts off in traffic. F that. Fortunately there's a switch to turn that off but you've got to hit every time you get in the car. Don't know if you can code Jeeps but that's the first thing I'd delete.
         
      • jeeping8r

        jeeping8r Your car may go fast, Mine will go anywhere

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        What kind of Jeep? There's many programmers out for the Wranglers. ESS (engine stop start) is gaining along with the transmission exhausting the line pressures at a stop. Anything they can get another 100th of a % gain.
        Fortunately I got away from the stealership service department long ago. Have my own little shop now and can pick and choose what I do, And that's mainly Jeep and truck stuff.
         
      • Concrete Helmet

        Concrete Helmet Hook, Line, and Sinker
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        I run 93 in my 18 GT, Tundra and my Shelby(tuned on 93 plus).....ethanol is not an issue in ANY vehicle because they do not have vented fuel systems and typically do not "sit" on fuel for weeks or month's at a time like a boat.
        If you really wanna make that BMW fly you should put it on E85 if it's not your daily(sometimes hard to find). If I wasn't going to supercharge my 18GT it would be getting a Flex Fuel tune for the performance advantages alone.
         
      • Concrete Helmet

        Concrete Helmet Hook, Line, and Sinker
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        Not sure about other brands but newer Ford engines just require bigger injectors....the engines themselves have a self alky level learn already programmed in them.
         
      • oxrageous

        oxrageous It's Good to be King
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        Of course it isn't. It's a way to be forced to buy and have them install their insanely priced batteries (I heard $300 to $500).

        Again, eff them.
         
      • 78

        78 Dazed and Confused
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        I replaced my battery a little more than a year ago. $276.00. They're not for everyone.
         
      • ThreatMatrix

        ThreatMatrix Feeling the Buzz
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        Again, that's why you DIY. I can get an equivalent battery for $120 and register it myself using Carly.
         
      • oxrageous

        oxrageous It's Good to be King
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        How much labor for BMW to plop in that battery? $250?

        Eff them.
         

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