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

[Ruroniarc]

You could still try it, but it would be for a track car, because the way it would work is the motor would draw off the battery until the battery got low, then the alternator would drag on your engine. So you would get this magical boost for a while, but then it would just go away once the alternator started pulling more.

[mandrek]

You could still try it, but it would be for a track car, because the way it would work is the motor would draw off the battery until the battery got low, then the alternator would drag on your engine. So you would get this magical boost for a while, but then it would just go away once the alternator started pulling more.

ok well ill do some more poking around and get my numbers lined up b4 i go any farther... im just hopeing that i can find an electric motor whose draw will be far less than what the alternator will put out (even if i have to rewind/upgrade the alternator) im still basing this on the principal that 75% of the time the PS and water pumps operate at too high a speed to be optimal for water flow/ pump preasure... so in fact may just need small motor to do the trick.

OR i could do what most auto-x guys are doing, and instead of driving the pump pully with a small motor, i could just get a genII MR2 electro-hydrolic PS pump (ware the motor is built in and is the actual pump vs being a piggyback unit) and just leave the the water pump and the alternator to be mechanicly driven by the engine... was realy looking for a way to get the water pump off the belt as well, but gurss not.... baby steps! alot more research to go!.