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Found 4 results

  1. V_MAX

    New Grill

    From the album: My 523i Conversions and Maintenance

    This is the new upper and lower grill and bezels for the fog lights, with additional air intakes in the lower grill for cooling of the brakes. Looks better I think, specifically around the fog-light opening holes that cool downs the alternator on the left side.
  2. From the album: My 523i Conversions and Maintenance

    If you are thinking of buying a cold air intake, then think twice before you go out and spend your money on a aftermarket cone air filter to be fitted in the engine bay. You should also be aware of that it probably will not benefit anything, in terms of getting more cold air to the engine over the air intake you have but unfortunately often quite the opposite effect so that the engine will draw hotter air in from the engine bay, sins it is hard to eliminate the hot air in the engine bay from outside air. I had some issues with the heat in in the engine and actually got up to 62° - 70°c /144° - 158°f air temp. measured inside the manifold, at standstill and idling, with outside temperature at 20°c/68°f. This heat buildup is manly due to all the tuning and modifications I have made to the engine. To tackle this heat buildup I had two simple choices, ether more cold air from the outside or an external oil cooler. I opted for both solutions and the results where that the core heat (mostly the heat of the oil) of the engine dropped from 103°c to 93°c/217°f - 199°f and air temp inside the intake manifold from 62°c. to 43°c./144°f - 109°f (later I deleted the throttle body heat and got much better numbers, you can read about it with other pictures) I bought a used air filter housing with the additional air intake spout (you can see the spout I'm talking about in the picture of the oil cooler setup "final setup") that takes air in from the wing. The hole is there on the inner side of the wing (looks like BMW anticipated a need for some more fresh air for the bigger engines) so no modifications needed. Further more, I removed the resonant baffle that potentially could restrict fresh cold air intake and finally, I shortened and opened up the main air intake that sits in the front of the radiator. The peace I removed from the air filter housing is a silencer, that looks like it should provide some venturi effect. The dilemma was, does the engine need more air at lesser velocity, or less air at faster velocity? I opted for more air at a lower velocity although both would be the best of both worlds. Works fine for me and the MAF. After the air improvement I noticed that I had to rewrite and fine tune some of my bin. files, sins the engine is now running cooler and colder more dens air is coming into the engine, hens more fuel can be added to the A/F ratio. That where my primary thoughts behind this mod, to gain more HP without melting the engine. The numbers speak for them self's and the problem with the rising core heat is solved.
  3. V_MAX

    M5 bumper with functional air intake.

    From the album: My 523i Conversions and Maintenance

    Just repainted and shiny. I like the sexy lines and intake bezel for the fog lamps. At this time I had not pushed the bezel all the way in place. This is a little bit different and cleaner than the closed standard fog light bezels. The left bezel for the fog lights cools down the alternator and the two in the middle are inlets to cool the brakes.
  4. V_MAX

    Oil Cooler Hoses Route

    From the album: My 523i Conversions and Maintenance

    The oil hoses fit perfectly in front of the water radiator but you have to drill two holes in the radiator bracket to thread the hoses and come out of the air intake hole. This is probably the easiest way to route the lines but at the cost of loosing the original air intake for the engine. Then again, it is not that bad sins you actually can shorten the air intake snout and thereby get cold fresh air in. The only "drawback" is that at full throttle you definitely can hear the engine breath with some snorkeling ruff sound. The first time I heard this sound I thought something was terribly wrong, but it is quite normal with the intake shortened and the air baffle removed from the air intake box itself. You can read more about this transition with other related pictures.
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