Recent content by maticulus

You're absolutely correct, this is an older thread and I apparently missed, or wasn't paying as close attention to the stated plan, or just didn't bother to call it out for the impractical reasons that you mentioned and forgot about it. Running an electric turbo/blower with an alternator...

This is for performance within intended individual guidelines, I'm pretty sure no one is looking for more than short term, high efficiency momentary boost. The biggest return at least for my efforts is high efficiency, high performance with minimal invasiveness. I've completed several...

I've made some headway on moving towards my final concept. I watched the video of the 2535 on the dyno and noted the apparent limitation the designated ESC for the motor appeared to be. I called Castle and received permission to return the ESC in order to purchase the more powerful MAD MAX 21...

Hadn't quite appreciated the importance of this fact until after a second look. Running the motor outside of its peak efficiency range would indeed waste electrical energy. Having given more thought to the matter, perhaps full motor power and pulse width modulated (PWM) wastegate (blow off...

Great problem display and accompanying solution for anyone who observes similar data in their build.

The assumed qualifier to mean at any range of operation in the absence of supercharger use the motor might find itself that creates an obstruction goes without saying. No obstruction, no need, but the OP has not shared whether he/she is boosting a big block or a lawn mower engine so in the...

Yes he did, but it was around 4000 rpm and up which is not a frequent rpm to hit for normal driving off boost. Again it depends on the engine displacement as you demonstrated above, however a bypass is important for all range performance, or variable charger operation to offset the obstruction...

Outstanding accomplishment, I don't know what to tell you about the VESC other than to replace it with something else. I have a 16S VESC and still have not figured out why it would cutout short of max power during bench testing. There is one more setting change to try in an effort to solve the...

You are incorrect although confident. At a minimum the desired airflow at your secret goal is important to know and that depends on the motor, as many of those planning and building on this forum use math and a good bit of it to make decisions on what to buy, how to build it and whether or not...

Understand that you posted no specifics whatsoever about your setup, not a single one to justify the attitude you seem to have regarding my input. If anything my mistake was not pointing that out first. Your comment in red text above begs the question of how much do you understand about any...

I'll have to disagree with the presumption that the centrifugal will be significantly restrictive for two reasons, first the area of airflow needs to be considered, given the apparent size of the P2 compressor housing, chances are pretty good that appreciable restriction to airflow when the...

It's important to note his discovery of a negative mismatch in the P2 performance next to the accepted compressor map that has been in use and then ask yourself this question, Will direct drive spin the compressor wheel fast enough to deliver the airflow necessary to meet your power level...

I've often looked at this trend and imagined being able to achieve a max boost level that was too high from launch, to just over midrange rpm so that the excess could then be parsed in to sustain a long flat power peak as the excess boost became appropriate/safe to apply with the increasing and...

So I can actually run a few cells more voltage than a 12S ESC is spec'd for without destroying it instantly? I've been wondering about the limits in an effort to make things a little more flexible to avoid a major hardware expense while experimenting. I have a 67v fully charged 16S hybrid...

Impressive and encouraging.