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  1. M

    HELP with my Pontiac Solstice PLEASE...turbo/supercharger advice.

    I've given this wakeup call to members on another website I frequent explaining that I have data logged inlet temps and noted little more than 1 deg difference between inlet air temps and ambient temps on the same car. The stock airbox has a snorkel that pulls up along side the headlight area...
  2. M

    Want to build 500Hp electric turbo, people with experience please chime in

    I believe you're both over thinking this. The focus should be on a functional electric supercharger, as for an onboard charging system, a simple on/off or open/closed circuit activated when the supercharger is in use can be deployed to disengage charging during that brief period, something as...
  3. M

    Want to build 500Hp electric turbo, people with experience please chime in

    Get a 48v alternator from a hybrid car and figure out the control wiring, or purchase an conventional style 48 volt alternator and regulate up or down to the voltage and current rate you need. Both can be found on ebay for around $3-600. Or you can buy an external charger in the right voltage...
  4. M

    Want to build 500Hp electric turbo, people with experience please chime in

    You're comparing apples to oranges here, you can't compare directly the type of loads an RC car would pull to those of a supercharger, also heat is energy and the differences you are seeing at the ESC vs anywhere else is an element of efficiency, work is being done inside the ESC as well as the...
  5. M

    Want to build 500Hp electric turbo, people with experience please chime in

    You didn't provide any specs on the compressor and housing you posted a picture of and the proper way to assess the practicality of that combination is to calculate the cubic feet of air (CFM convert to lbs/min) that your motor will require to meet your goal and then plot that value on the...
  6. M

    RX8 Renesis Rotary eSC

    In one of my Turbocharging books (Maximum Boost probably) or some other literature I read over the years, for every 10 deg drop in motor inlet air temp you can expect a 1% bump in power. As it relates to rpm, for every gram of weight reduction in the valve train or rotating assembly that is...
  7. M

    Meth injection tuning.

    First understand that you do not require as much boost with an electric turbo than you do a traditional turbo or supercharger, so the quantity of additional fuel management needed is much less, as a result of the absence of parasitic horsepower used by a turbine housing, or supercharger belt...
  8. M

    RX8 Renesis Rotary eSC

    The weight gain is minor when considering the weight burden of a traditional turbo outfit. Every time you carry a passenger you'll be adding far greater weight than the batteries add. 100 lbs of batteries are acceptable as far as I'm concerned relative to the efficiency of the system, especially...
  9. M

    2L Opel GT e-boost build

    The link to the ESC was very helpful to me as I'm trying to decide on what high range voltage to run for a balance between practically priced ESCs that can handle the current loads dependably and a battery configuration that is high voltage, high capacity and easy to obtain in quality used...
  10. M

    planning for my E-SC powered Nissan Fuga has begun

    Is your assessment based on the exact same equipment, or specifications that he used in the example you are referencing? I've looked into this motor and can't get any definitive specs for it, except to assume the lowest performance ratings I've found are correct which is approximately 25K rpm...
  11. M

    planning for my E-SC powered Nissan Fuga has begun

    Will this motor be strong enough and of a high enough rpm to accomplish the pressure levels you'll need?
  12. M

    Supercharger / turbocharger shaft horsepower

    This is a highly diverse and customizable option. Superchargers draw more parasitic power than a turbo because they're always driven by the crank unless the system has a clutch activated pulley. Turbos are considered free hp in error bc they are driven by the exhaust gases after the chemical...
  13. M

    Supercharger / turbocharger shaft horsepower

    In other words as I've projected, efficiency goes up for the entire system relative to the traditional turbo, more power generated for less input into the system.
  14. M

    Supercharger / turbocharger shaft horsepower

    The BorgWarner bot calculator lists shaft horsepower for a given boost pressure. I just had a thought regarding this while considering what motor I want to use in my finished assembly. Shouldn't those values be inaccurate for our application? For the traditional turbo the values were derived...
  15. M

    RX8 Renesis Rotary eSC

    That spec is in Fahrenheit and yes that's about it. That temp drop only condenses the air charge slightly and a number of dyno tests have been conducted to validate that water/meth injection alone doesn't add more power in the absence of increasing the ignition advance to take advantage of the...
  16. M

    RX8 Renesis Rotary eSC

    Water/meth injection moves power making potential up quite a bit. It cleans the combustion chambers, smooths the combustion process and raises the octane level but it will not provide more power beyond the ~1% gain for every 10 deg drop in intake temps. You must increase ignition timing to take...
  17. M

    RX8 Renesis Rotary eSC

    The 14.7 psi theory base still applies as it relates to the amount of air flow/density going into the motor, and that's independent of the accessories involved. None the less, those parasitic losses probably fall under the exponential rule as power level increases. Still far greater return than...
  18. M

    RX8 Renesis Rotary eSC

    The most significant benefit to an electric turbo vs. a traditional is the efficiency. I don't believe I mentioned that regarding your posted dyno results previously. At sea level 1 atmosphere is 14.7 psi, theoretically if you apply that much boost to a motor it should double the power, until...
  19. M

    P2 Supercharger Thread

    I don't own one but I'm familiar with what bad and or cheap bearings sound like and that one sounds like it could use a bearing upgrade. I read recently on the forum where someone upgraded to ceramic bearings which I'm sure will sound drastically better than that if they make a sound at all.
  20. M

    Electrified from Jersey

    .91 sounds like a lot for that motor using the one I built on comparison with .7 more litres, and much higher compression on a .81 turbine. I talked to at least two different experienced turbo suppliers and T-67 was the highest recommended for my 500 hp goal. For more top end you need a camshaft...
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