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  1. AlexLTDLX

    Full Time Electric Supercharger - Is it Possible?

    Boost at very low rpm is a bad idea. It creates a tremendous amount of cylinder pressure and can cause severe engine damage - it makes your tuning window small, can cause uncontrollable detonation, blow head gaskets, beat up rod bearings, etc. If you need more low end grunt, the best bet is to...
  2. AlexLTDLX

    Not too much activity, but it's building. I'm in the process of moving halfway across the...

    Not too much activity, but it's building. I'm in the process of moving halfway across the country, so I'm a but inundated with both houses - selling the old one and building the new one. Moving day is coming up in the next couple of weeks - and then I'll be back on to these things.
  3. AlexLTDLX

    would this battery work?

    I tested several smaller batteries in a video here: I didn't test that battery in particular but it'll give you an idea of the range you could be looking at.
  4. AlexLTDLX

    would this battery work?

    There really is no standard for C rate. In other words you don't know what the voltage sag is going to be under that load. I really don't think any battery that small can provide the kind of current levels we're looking for. Generally speaking within the same chemistry, The greater the amp...
  5. AlexLTDLX

    Site "Not Secure"

    That would be a false positive. I had Godaddy (the host) take over the SSL stuff. Should be good to go.
  6. AlexLTDLX

    Hello!! I am Mateen from Silver Spring, Maryland

    Hi Mateen - how do you plan on connecting the 18650 cells? I have bought 180 a123 systems lithium iron phosphate cells but ended up not using them because I couldn't come up with a way to connect them all that could reliably carry the current
  7. AlexLTDLX

    Texan in the House

    Welcome!
  8. AlexLTDLX

    Ducted Brushless Fans for boost?

    I don't think it'll make enough boost to make intercooling or injection worthwhile. On the other hand, I've always had a thing for Jaguar sedans - particularly the round eyes. One day...
  9. AlexLTDLX

    Hobbywing Max4 - EZRUN 70125 - Speedmaster P2 build

    This looks great - when you get things working, definitely let me know and I'd love to make a video with you featuring your build. I also like your packaging of the motor, btw.
  10. AlexLTDLX

    Ducted Brushless Fans for boost?

    Please do so - and if you do, I'd love to make a video with you about your results! Just let me know here in this thread.
  11. AlexLTDLX

    Audi SQ7 4.0 TDI - electric supercharger.

    That may end up being a heavy lift - you sound like you're miles ahead of where I would be with it. Can you share more of what you've discovered? Maybe some of the software folks on here can offer suggestions.
  12. AlexLTDLX

    Control methods for an E-supercharger

    Wow... just saw this. I did have arduino control but encountered some issues. So I switched to the simple method - two small servo testers, with one being zero throttle and the other being max (or whatever it's set to) throttle, with a relay switching between the two. It's pretty butch, but...
  13. AlexLTDLX

    Can electric boost be used on a EFI 750cc motorcycle engine

    If you do meth injection you'll most likely be ok. The meth would give you a big octane boost. But I would sneak up on the boost and I'd read the plugs. Again, though, you'll probably be fine. I certainly wouldn't try this at 12:1 without either some form of octane boost (fuel, additive or...
  14. AlexLTDLX

    GOOD NEWS FOR THE WB E-TURBO

    "Battery is fully charged" - lol. I think charging the lipos to 3.9 volts is a good idea for a few reasons (battery life, less drop). Sorry about the MGM troubles. Yeah, the Hobbywing won't work with the arduino program the way it was setup - but you figured it out. The Max 4 is probably...
  15. AlexLTDLX

    Control methods for an E-supercharger

    I'm now leaning towards 2 controllers - one based on OBD II data, and the other on MAP alone (with a provision for an RPM based kill switch). That should cover most cars.
  16. AlexLTDLX

    Carl from Colorado

    Welcome Carl!
  17. AlexLTDLX

    GOOD NEWS FOR THE WB E-TURBO

    I'm glad things are back on track WB. Time for you to make another video - do a comparison before/after your wiring mods. I'd like to see the difference.
  18. AlexLTDLX

    Can electric boost be used on a EFI 750cc motorcycle engine

    Yeah, actually I think it would be pretty easy. Do you run at Bonneville or somewhere else? What is you current hp level and how much do you want to make boosted?
  19. AlexLTDLX

    Can E- Turbo reduce oil consumption ?

    Ok, my first use for the electric turbo was as a crankcase evacuation pump - not as forced induction. At that time, my car had a Whipple supercharger on it and using the electric turbo to generate a vacuum in the crankcase would've been beneficial. But now that I've replaced the Whipple with...
  20. AlexLTDLX

    MX5NB 1.6 Project

    It's better to use your engine's hp and then match that to the compressor map. For example, the P2 supercharger that I'm currently advocating for is essentially a Vortech Si trim: Lb/Min airflow (the x axis) can be translated to horsepower by multiplying by ten. So if your engine makes 120...
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