Idea ive had for a wile.... Options

[mandrek]

So here it goes, i have a 95 ST (7afe). that i DD and do auto-x with. i have been looking at doing a few mods to help with reducing paracitic drag off of the week 7A motor, and have come up with a few ideas that i would like to run by u all.

i have read a number of threads on hondas taking the MR2 EPS pump and running the set up as to remove parasitic drag off the motor. now, here is what i have been thinking of doing for a wile now, it should be a pretty simple set-up, but am looking into getting some info on the topic before i make the plung..

currently the PS and the water pumps share a belt on the 7A.

what i have thinking abut doing is adding a small electric motor to that side of the motor and remove those two pumps from pulling off the crank. sorta like this.

E-motor
(o)\
|----\
|-----\
(o)_(o)
^----^
PS-----water

not only would this remove 2 sorces of paracitic drag from the crank, but it would also avoid the water-pump from developing cavitation at high engine RPM's AND allow for the PS to be at full boost almost all the time..

the car is still not a dedecated track car so the on/off full PS boost may not be compleatly nesisary, but still an advantage wile auto-xing.

let me know what u all think.. looking for ALL input good or bad..

This post has been edited by mandrek: Mar 25, 2010 - 7:49 PM

[delusionz]

This argument rings familiar with every time an "Electric Supercharger/Turbo" conversation pops up.

To use electricity to make power (or save power) you need to get the power from the alternator,

Just hypothetically, Say if your alternator is loaded up by a device drawing 1kW (1000 watts) then it may rob the engine of how much? 1.25kW ?? Maybe more?? + Many other factors which add sacrifices.

Perhaps consider why superchargers run on a belt with the crank, and why RWD cars with N-S mounted engines have their radiator fan on the crank instead of using an electric fan.

Since we have an electrical engineer in this thread, he may touch on the subject of large capacitors and battery technologies, but then we would just be breaking the tip of the iceberg of what hybrid vehicle engineers have been trying to master for years.

I'm sure if there was a quick easy way to make more power than the sacrifice it would make, it would already be in the forum stickies yeah?


So in short, electric motors are more efficient than petrol engines, but you still need that petrol engine to create the electricity in the first place.


I'd really love for someone to come and disagree with me though, this is a very interesting topic of conversation.