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  1. Theoretically, yes, lower oil temps will reduce...

    Theoretically, yes, lower oil temps will reduce vaporization significantly. I'm running the Dinan OC with oil temps in the 210-220F range on the street driving easily or hard, hot weather, sitting in...
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    I was thinking the same thing. You will need to...

    I was thinking the same thing. You will need to take it to a tech who knows not only BMWs/N54 engines and modern DME/CAS/EWS issues, but also knows how to go about detailed troubleshooting WITH...
  3. Thermodynamically you want the hot in the top and...

    Thermodynamically you want the hot in the top and cool out the bottom. Pre-fill the new lines and cooler (mostly full is OK) and fire it up.
  4. Thread: Crank Walk

    by JamesM3M5
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    1,531

    That would mean the CAS, DME, DSC, and LDM...

    That would mean the CAS, DME, DSC, and LDM (logitudinal dynamics module or cruise control) all see the clutch pedal down at all times. That is where the implausible codes come in. Maybe you could...
  5. Diff stays in the car. Drop the complete exhaust...

    Diff stays in the car. Drop the complete exhaust and heat shield under the driveshaft. Unscrew the nut, remove the outer 12-point pinion nut, replace seal, and properly retorque the 12-point nut....
  6. Bosch 17098 about $100 on amazon et al. What...

    Bosch 17098 about $100 on amazon et al.

    What about a ceramic insulator instead of a heat sink? Pressure shouldn't affect accuracy or life that much, it's the temp that you need to keep down from...
  7. Thread: Crank Walk

    by JamesM3M5
    Replies
    26
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    1,531

    This happened to a race team on their N52 race...

    This happened to a race team on their N52 race motor. They had to crank a built race motor with a stiff clutch for a long period to get it to start. Someone thought the clutch had to be pushed in to...
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    Back to the injectors listening for knock - it is...

    Back to the injectors listening for knock - it is possible, thought, right? The knock sensors are reactive in nature. It's a 'seismic mass' that generates a voltage into a coil of fine wire based on...
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    Yes it certainly did. I was seeing up to 0.5...

    Yes it certainly did. I was seeing up to 0.5 difference in actual AFR (not trim). It also cured about 50% of the idle and low-load cruising stumble.
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    Started seeing some AFR differences bank 1 versus...

    Started seeing some AFR differences bank 1 versus 2, so I did both fronts at around 56k miles on mine, Procede + meth.

    Use the same bank 1 sensor for both banks, save some $. Bosch # 17098, fits...
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    I'd like to see the manifold, too, wondering...

    I'd like to see the manifold, too, wondering whether it's built with separate banks or not. Looks like a nice fit, though. I would also caution against the blanket. Had one E30/S52 top mount turbo...
  12. Thread: Update

    by JamesM3M5
    Replies
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    4,252

    This is all very exciting. Now if my stock turbos...

    This is all very exciting. Now if my stock turbos would just crap out, I'll have an excuse, uh I mean REASON, to upgrade :)
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    Odd, which one? Just a thought: the original...

    Odd, which one?

    Just a thought: the original design will be a nice accompaniment to the ProEFI standalone. That will be one hellacious motor - drag, drift, or roadcourse! I have lots of S54 street...
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    Cliff notes: Engine was all wired and ready to...

    Cliff notes: Engine was all wired and ready to test, but the cam trigger wheel pattern was throwing off the ECU. They had to rewrite some firmware in the ProEFI to properly recognize the cam...
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    That's someMASSIVE torque. Holy hell! :eusa-clap:...

    That's someMASSIVE torque. Holy hell! :eusa-clap:

    Guys, you also need to remember that the torque number the dyno displays is not the torque at the rear wheels, it's corrected between the known...
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    Correction to my post above: Not a 0.25bar...

    Correction to my post above: Not a 0.25bar absolute - it's a 1.25 bar absolute pressure sensor inside the manifold.

    And I'm not familiar enough with water/meth injection theory and practice to...
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    We have electronic throttle, and no reported...

    We have electronic throttle, and no reported throttle failures caused by water/meth sprayed post IC. Also no MAF, just load calculated from two MAP sensors, one 2.5bar absolute pre throttle and one...
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    So this was solved by adjusting slack out of the...

    So this was solved by adjusting slack out of the wastegate actuators? I noticed significant boost target improvements and quicker boost control once I adjusted mine last spring. Also had a JB4...
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    Try sending an IM or email to the guys at Tischer...

    Try sending an IM or email to the guys at Tischer BMW: http://getbmwparts.com/contact_form.html
  20. Good read, albeit long as mentioned. Corrected...

    Good read, albeit long as mentioned. Corrected some of my internal thought processes regarding torque and HP WRT shift points, as well.

    The S52 engine is ubiquitious in BMW CCA and NASA club...
  21. DCAFS - How old are your pre-cat O2s? Might want...

    DCAFS - How old are your pre-cat O2s? Might want to consider changing them if they're anywhere near 50k miles. You can use two of the Bosch 17098, cheaper than the N54-specific 17102 for bank 2. You...
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    With the engine cool, do a partial disassemble....

    With the engine cool, do a partial disassemble. Pull the engine cover and cowl. Check all the vacuum lines for chafing or dry rot. Especially check next to the oil filter housing for chafed hoses -...
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    My guess is also something bad on the control...

    My guess is also something bad on the control side - vacuum leak/cracked hoses, bad solenoid(s), or WG shaft or actuator not closing the WG properly or at all. One turbo can't provide any boost if...
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    Metric Mechanic or Jim Blanton built 265...

    Metric Mechanic or Jim Blanton built 265 (spearate bell-housing transmission available on E30 M3 and 1985 535/635/735. Real strong. There was a guy in Florida with a red E34 535 turbo who swapped to...
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    I just jizzed in my pants. Have a lightly...

    I just jizzed in my pants. Have a lightly fire-damaged 335 at the shop that is going to auction, totalled by the owner's insurance (no meth, coil caught fire is all we can think of). If everything...
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