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Thread: "+15bhp" piggy back chip/ turbonator????

  1. #1
    Join Date
    Nov 2005
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    Clevedon
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    Default "+15bhp" piggy back chip/ turbonator????

    Hi there

    Been looking for cost effective methods of getting a few extra horses from my e34 535i and have come across some interesting, if a little suspicious items. The first is one i bought from ebay. Its called the "+15bhp chip" and is a small black box, a little smaller than a box of matches with two wires coming from it. Apparently you fit it in place of the intake air temperature sensor. It is supposed to fool the engine into thinking that the air coming in is always cold, thus advancing the timing a little and giving a bit more power. It cost about £15 ($30).
    I soldered the "chips" wires to the pink wires inside the AFM which appear to go to the IAT sensor, then cut off the sensor which pops up into the air flow on the intake side of the AFM. Not sure if its made a difference or not without a dyno printout. I have another AFM in case it destroys this one, but seems ok!! Any advice/experience anyone???
    Ok, on this site there is a link to "THE TURBONATOR", claiming to be a supercharger. I can see in principle how it works, but can this device get over the restrictivness of the AFM by forcing more air through it? Won't it screw up the intake system? My friend says he's come across them before and rekons they're sh#t.
    Sounds too good to be true. Whats the word on the forum? Don't wanna blow a gasket!!

  2. #2
    Join Date
    Aug 2005
    Location
    east anglia uk
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    Default

    Quote Originally Posted by octanejunkie
    Hi there

    Been looking for cost effective methods of getting a few extra horses from my e34 535i and have come across some interesting, if a little suspicious items. The first is one i bought from ebay. Its called the "+15bhp chip" and is a small black box, a little smaller than a box of matches with two wires coming from it. Apparently you fit it in place of the intake air temperature sensor. It is supposed to fool the engine into thinking that the air coming in is always cold, thus advancing the timing a little and giving a bit more power. It cost about £15 ($30).
    I soldered the "chips" wires to the pink wires inside the AFM which appear to go to the IAT sensor, then cut off the sensor which pops up into the air flow on the intake side of the AFM. Not sure if its made a difference or not without a dyno printout. I have another AFM in case it destroys this one, but seems ok!! Any advice/experience anyone???
    Ok, on this site there is a link to "THE TURBONATOR", claiming to be a supercharger. I can see in principle how it works, but can this device get over the restrictivness of the AFM by forcing more air through it? Won't it screw up the intake system? My friend says he's come across them before and rekons they're sh#t.
    Sounds too good to be true. Whats the word on the forum? Don't wanna blow a gasket!!
    the +15 hp chip is a resistor bought for around 20p at maplin and incased in a bit of plastic. turbonator,hmm just keep clicking that link (ed ) but as far as buying one......im not sure.

  3. #3
    Join Date
    Mar 2005
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    T·O·R·O·N·T·O
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    Default

    Erm.... do a search for that on the forum.

    I wouldn't strap that "+15bhp" on my car if you paid me.
    :: HIDCanada.com | Illuminating Your World


  4. #4
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    Mar 2005
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    Houston, TX
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    If it sounds too good to be true, it ain't true - no free lunches. You might wish to do a search of this forum - the turbonator and several other perennial automotive nostrums have been discussed at hilarious length.

  5. #5
    Join Date
    Jun 2004
    Location
    Melbourne, Australia
    Posts
    1,305

    Default

    Quote Originally Posted by octanejunkie
    Hi there

    Been looking for cost effective methods of getting a few extra horses from my e34 535i and have come across some interesting, if a little suspicious items. The first is one i bought from ebay. Its called the "+15bhp chip" and is a small black box, a little smaller than a box of matches with two wires coming from it. Apparently you fit it in place of the intake air temperature sensor. It is supposed to fool the engine into thinking that the air coming in is always cold, thus advancing the timing a little and giving a bit more power. It cost about £15 ($30).
    I soldered the "chips" wires to the pink wires inside the AFM which appear to go to the IAT sensor, then cut off the sensor which pops up into the air flow on the intake side of the AFM. Not sure if its made a difference or not without a dyno printout. I have another AFM in case it destroys this one, but seems ok!! Any advice/experience anyone???
    Ok, on this site there is a link to "THE TURBONATOR", claiming to be a supercharger. I can see in principle how it works, but can this device get over the restrictivness of the AFM by forcing more air through it? Won't it screw up the intake system? My friend says he's come across them before and rekons they're sh#t.
    Sounds too good to be true. Whats the word on the forum? Don't wanna blow a gasket!!
    The devices are a waste of money and in most cases offer little or no performance benefit, and in the worse cases can potentially cause damage.

    1990 E34 535iA, 215,000kms (130,000 miles).
    Dual Climate, Rear Headrests, Rollerblind, M-Tech Wheel,
    Memory Seats, EAT Chip, T-Stars.

  6. #6
    Join Date
    Nov 2005
    Location
    Coffs harbour Australia
    Posts
    58

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    [Try perfectpower.com, they make a piggy back computer that makes your engine fully programable, easy to install, best tuned on a dyno for best results, must use premium 95 or 98 fuel, more power and toque than a chip

  7. #7
    Join Date
    Nov 2005
    Location
    Coffs harbour Australia
    Posts
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    Sorry, also can try modernperformanceinc.com, he sells the piggy back as well as a MAF to replace your old air flow meter, old air flow meter is a big air restriction, i have this setup on my e34 535ia, kit comes with K&N cone air filter, this takes the H.P. to about 240 or a bit more with fine tuning, can also be retuned to any new mods you make.

  8. #8
    Join Date
    Aug 2004
    Location
    detroit
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    957

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    with both those installed you ought to be abel to hit the 200 mph mark

  9. #9
    Join Date
    Nov 2005
    Location
    Clevedon
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    Quote Originally Posted by kyleN20
    with both those installed you ought to be abel to hit the 200 mph mark

    Do you think driving in a lightweight spandex suit like a skier would increase performance?

  10. #10
    Join Date
    Jun 2004
    Location
    Melbourne, Australia
    Posts
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    Default

    Quote Originally Posted by octanejunkie
    Do you think driving in a lightweight spandex suit like a skier would increase performance?
    I hope you're not criticising my driving apparel... are you?!!
    I kinda like the slinky feel when pushing the pedal to the metal.
    Oh and the kevlar undies (worn on the outside of course) are just the ticket!!

    1990 E34 535iA, 215,000kms (130,000 miles).
    Dual Climate, Rear Headrests, Rollerblind, M-Tech Wheel,
    Memory Seats, EAT Chip, T-Stars.

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