Demo: 2.slow electric supercharger

[MechEngg]

Re: Demo: 2.slow electric supercharger

Using a wastegate is not going to work very well. The way a wastegate works is that is lets EXCESS pressure through so if you set it at 5psi you would be losing a constant 5psi going to your turbo. Basically when your SC is feeding 6psi to the turbo the turbo will be recieving 6psi. Then you shut off the SC the pressure the turbo recieves is only going to be 1 psi because it takes 5psi to open the wastegate. This would work if you could set the wastegate to 0.1psi and just lose that much but then you may not have a very good seal when the SC kicks in until it gets pressured up, i would rather design a mechanical system to make it work all the time and not have to rely on the air pressure to keep it shut/open.

[shconer]

Re: Demo: 2.slow electric supercharger

You wouldn't even need a flap as the air is going to take the path of least resistance. Use a waste gate to bypass the supercharger and set the waste gate to start opening at like 5 psi and and have the supercharger turn off at like 6 psi. I think cost could be a prohibiting factor for this set up.

[MechEngg]

Re: Demo: 2.slow electric supercharger

Yup kinda like the R32 exhaust flappers that open when you get over a certain RPM. They just have a vacuum tube input and that can be wired into a pressure switch that is run to a relay to the control box of the SC motor. The mechanical setup would be super easy to do for this but would most likely require custom tuning to get everything right. And it would be most effective on BIG turbos such as GT35 and larger on a 1.8L engine. Would be very efficient for auto-x i think just like lancia did in their delta s4.

Ummm OP please develop a product like we have been discussing so that i don't have to

[shconer]

Re: Demo: 2.slow electric supercharger

Yea that would work, like an adjustable waste gate, and have a pressure switch that turns the supercharger off. 1.8T Twincharger.

[MechEngg]

Re: Demo: 2.slow electric supercharger

If that is the case then you might be able to install a "flapper valve" on the line betwee the SC and regular turbo that is boost pressure controlled so that when you hit X boost it opens the flapper and let's extra air in that way. I'm just trying to brainstorm right now. And its been done before with a regular SC and regular turbo so I don't see why I couldn't make it work here with a SC and biiiig turbo so that you don't have such a big turbo lag

[shconer]

Re: Demo: 2.slow electric supercharger

Maybe I am wrong but assuming that the motor is already running at its maximum speed when it is on. So if its running at maximum speed and its not able to produce the same amount of boost as the factory turbocharger then it will start to become a restriction as boost rises past what the supercharger is capable of. I data logged it at Race City and I can tell you that its maximum flow was 104 g/s @ 5920RPM on the 2.0L. I t sounds like they have made some changes and now it might flow more.

[MechEngg]

Re: Demo: 2.slow electric supercharger

It wouldn't be a restriction if we could use a VFD on it and crank the speed up to match the airflow of the K03s. Which is why i would like some specs on the compressor and motor and maybe with a few switches it could work.

[shconer]

Re: Demo: 2.slow electric supercharger

I think the biggest problem is that after the turbo was spooled up the supercharger would become a restriction so you would need some sort of bypass.

[Geobmx4life]

Re: Demo: 2.slow electric supercharger

Ya, the one I saw was on demand, but I'm sure you could program the timing of it...would be time consuming to figure it out and have it fire just before the turbo spool...if I'm on the same page as you Sean.
BTW, MechEngg..I sent you a PM.

[MechEngg]

Re: Demo: 2.slow electric supercharger

But the programming would be definitely hard to do and logic would just take some thinking. And finding out the specs of the SC would let me do calcs to determine if it would work effectively.

[Geobmx4life]

Re: Demo: 2.slow electric supercharger

Hmmm i need some more info on this product please.

Electric SC + 1.8t.......i will think about this

WOW!!! Can you say ZERO LAG!!!

[MechEngg]

Re: Demo: 2.slow electric supercharger

Hmmm i need some more info on this product please.

Electric SC + 1.8t.......i will think about this

[shconer]

Re: Demo: 2.slow electric supercharger

I think the battery might be to supply higher voltage and reduce the current load on the wiring and maximize the motor output.

[Geobmx4life]

Re: Demo: 2.slow electric supercharger

If this is the one that I saw at TuneDub...the batteries have a limited number of hits to the SC...and even George said he was impressed. This is a Rolls Royce system compared to the JUNK you see on E-Bay!

[Stonewall]

Re: Demo: 2.slow electric supercharger

It looks like a brushless motor so you could possibly control the speed but then you are going to want a throttle signal to control it etc. I really don't see why such a system would need a battery, it shouldn't be such a inefficient motor to have a huge power draw. I can see some type of capacitor system for quick spool up but other then that a battery system should be able to supply enough.