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Recent content by JonKBmw

  1. JonKBmw

    BOV Question

    The BOV is not for throttle response at all. Its to vent pressure that would otherwise surge backwards through the compressor when the throttle is closed. "Strength" has nothing to do with it - anti-surge (or map-enhancement) ports do, but all turbocharger applications require either a blow...
  2. JonKBmw

    lambda problems

    Its going up and down while cruising because you're using a narrowband sensor/meter that is targeting 1 lambda while in closed loop (cruising, idle..) and going open loop WOT which is what you're mapping. You will never get the car dialed in properly, EVER, with a narrow band meter/sensor.
  3. JonKBmw

    Stamped vs. Machined water pump impellers

    Are we by chance talking about BMW pumps? And if so, are we talking about the OEM tack welded/stamped impeller vs a stewart warner unit? Just curious as I recently had a similar discussion for similar reasons :)
  4. JonKBmw

    Aluminum fuel rail - anodize necessary?

    The alloy is 6063 aircraft grade aluminum. I am not worried about how the external side will weather, as I am powder coating it, but more concerned if the leaded fuel will corrode the inside at all.
  5. JonKBmw

    Aluminum fuel rail - anodize necessary?

    Hello all - I recently upgraded from a -6AN fuel rail to a -10AN fuel rail. I am making the -10AN from an extrusion I bought since no one makes a kit for this vehicle. I plan on only running 93 octane pump fuel regularly, with up to C16 fuel (leaded) when I dyno/track the car. I know with...
  6. JonKBmw

    Octane Rating of Methanol?

    Thanks but understand I am not trying to run the car on methanol. It will be run on 93 fuel on the street and prob ~110 octane on the track, with methanol/water injection supplementary to the primary fuel.
  7. JonKBmw

    Aftermarket Fuel Injection

    I don't want to seem partial, but I love the MS platform. I run a modern 24v DOHC BMW engine turbocharged on these units and I love it. I have built over 30 - 35 units for about 20 BMWs and the remainder for other cars. Its not for everyone though. For people who don't know much about...
  8. JonKBmw

    Octane Rating of Methanol?

    Thanks - I understand the points about fueling, and locking, and ignition. It would take a ton of water/fuel to lock this guy up, especially considering the flow is controlled by nozzle diameter. As for igniting the mixture, I have a capacitive discharge ignition system I'll be implementing to...
  9. JonKBmw

    Octane Rating of Methanol?

    Hey guys - building a high horsepower turbo BMW and I have a few tricks up my sleeve to help spool the large turbo. I am about 8/10 finished my project, and have a full tubular manifold (inline 6), 76mm turbo, nitrous, and methanol injection. I intend to spray about 100 hp worth of nitrous...
  10. JonKBmw

    Exhaust System Question

    I think you're misinterpreting the rule slightly. It says that you cannot have any exhaust emitting device under the driver/sleeper cabin. However, you can probably have an exhaust that exits the vehicle before the driver, but not under. Reason being, any exhaust that dumps "under" the car...

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