Tofuball

Or you could just wrap the flywheel in wire and make that your alternator

Kai

$50 would be nice. The wiring and belt isn't that big of a deal, since I can solder... all you'de have to do is say what belt size to use.Not all of us are graced with a welder and knowledge of how to use it. I'm limited to what I have, when it comes to metalworking, I only have a vice, a few hammers, and some drills/taps. I could do it with this stuff, but I'd rather pick up a kit.

trochoid

iTrader: (6)

If weight distribution and CG are the critical resons for this mod, then it should be moved to the passenger side, below the space occupied by the air pump.

While some may not care for this mod, when it comes to top eschelon performace, this is one of those little racing edges.

SidewaysFC

would this allow us to use a different altenator all together? ...maybe something more powerful?

sub9lulu

iTrader: (7)

^ what really is the point tho
if u use a 3rd gen alternator there's 120+ amp but u loose like 2hp somewhere in the powerband, so if u go bigger i m assuming there'll be a bigger loss

Snrub

iTrader: (1)

You just don't get it, this is a race mod! ...Although in Solo2 you'd be assigned a 2 point penalty for the relocation and 2 points for the 1/4lbs saved using superlight engine mounts and have the joy of running against R-Compound shod Vipers, Corvettes and 911 turbos. Still, the biggest problem is that it wouldn't fit in the new location on my car because the airpump supercharger is in the way!

deathbe2me

i would love to have and adapter to place an alt in place of my AC...i have already removed my ac, and never had power steering...and the stereo i have now required 4 deep cycle marine batteries in my bins just to be able to run the amps and the motor at the same time....so i guess with the alt kit to relocate it i could run too!!!! that would be great!

pengarufoo

yea whatever

....


For those of you trashing this mod over the CoG argument, why don't you just throw the CoG out the window and look at it from the water pump belt coverage point of view.

Consider the price of a racing beat double sheave alternator pulley, consider you won't have to buy a double sheave alternator pulley if you relocate the alternator to the side of the engine. Suddenly there is some merit to the modification.

Nobody is forcing you to do the change, but it's not entirely pointless, no reason to trash it. There are plenty of intake setups that want the inlet coming right up the front of the engine, through the alternator. The relocation permits this to happen.

And those of you suggesting relocating it to the other side of the engine, have you ever looked at the passenger side of your engine? If you are going to put it low enough to lower the alternator and get optimal belt coverage, you're putting the alternator quite close to the exhaust manifold, turbo, or whatever setup you have over there. There is SPACE on the passenger side (when you remove the accessories), hence why the AC and PS is over there in the first place, and it's nowhere near as hot as the passenger side, which has an effect on alternator life.

casio

4 marine batteries? i know someone with (last i saw him) 6 12" JL W3s (i think 3s), 3 MTX amps, a Sega Dreamcast and i believe a crossover. this was in a mustang on one battery (though he had a half cap, i never saw it actually installed). what in god's same would require 4 alternate batteries? and have you heard of monster caps??

Kahren

iTrader: (13)

i regret posting on rx7 forum almost every post

ddub

What the **** would you need 6 W3's in a MUSTANG for?! Two W3's would be more than enough!

I'm running 2 Kicker Solobaric L7 12's off a 1200 watt (tested at) RF amp, 2 diamond audio component speakers in front and 2 mbquart component speakers in rear off a 700 RF amp with a yellowtop battery/5.0 ferrad power cap/big upgraded alternator... So it doesn't even seem like all that could be run off one battery either. And FYI my system is way too much by itself, 6 w3's would make ur brain rattle.

drago86

And i suppose the fact that it keeps the water pump from slipping above 6k doesnt matter either? or the fact that you can run a better designed strut tower bar now, or a bigger alternator because it wont hit your tower bar? Not to mention theres nothing JDM about it as JDM means japanese domestic market... maybe if you thought before you flamed you wouldnt end up looking like a complete idiot...

casio

haha, i wasnt using it to say "yo, this is the best," just using it as reference. i had 2 12" W3s in a 96 Probe; it was loud.
my point was the he had 6 12"s and 3amps and no extra batteries (to my knowledge..). they sure as hell weren't in the trunk or backseat. the trunk was all subs in fiberglass and the rear seat is no longer there, but 3 amps in its place. the dreamcast was in the passenger side floorboard if i remember right. i imagine he had an Optima battery, but sure as hell not some "4 Marine batteries" stuffed somewhere. thats why i was asking why someone would need 4 (additional) batteries in an RX7.
heh, i dont really need an "FYI," he did it cause he wanted. dont really know how to reply to your suggestion of "what is enough." last i heard, even he thought it was too much, but he did it.

RotaryResurrection

iTrader: (8)

I feel dumber for having read this thread, and I like to believe I'm a reasonably intelligent person.

88t2romad

well anyways i was driving then i stopped snd stsrted driving sgsin but then one time i drove

ddub

Yah I didn't mean to make it look like I was attacking you, I just thought that was REALLY messed up... Wayyyy too much bass would come from a system like that, and that is coming from someone who is bass crazy with a car no one can stand sitting in when the system is all the way up

88t2romad

sorry bout my last post, a non car friend got on my computer

fastrotaries

SO do alot of people here. So goes post on Honda.net

For me it works, it counters the TO4R that i have. It may be the same for everyone, but I could never understand why everyone here thinks that their application is what everyone else is running.

Mage

I would buy one for $50 IF it were to to go on where the air pump is Since I'm keeping both power ster and A/c.


Peace
Mage

SnowmanSteiner

By moving it to the side you would be moving the center of gravity more to that side than anything else, it would be lowered somewhat but it would tend to shift more diagonally. To make it more effective you would have to move it below the eccentric shaft pulley, to add the force of it's weight to the bottom of the engine.

- Steiner

jon88se

I'll ask again, why?

SnowmanSteiner

The center of gravity is the place where you can take the sum of all the loads from an object and place it so that you can accurately represent one force. This is also the spot where the object can be balanced. So by moving one force on the object, engine, from the top to the side, you are placing that force at a different point, therefor the cg moves because there is a new load in a different spot. So by moving it to the side and down, you are also moving the center of gravity to the side and down, but only by the ratio of the weight of the alternator to the engine, aka the force the alternator's weight places on the engine. Because you are moving it further to the side than you are down the cg is going to move to the side more than down, this again is all in relation to the weight of the engine. If you move it directly down the force is applied downward on the engine. So if you are trying to find the point where the cg will be closest to the ground by simply moving the alternator, moving it below the engine yeilds the lowest cg, because the entire force is applied downward, and not to the side.

- Steiner

1987RX7guy

iTrader: (3)

Already been answered by a few people. Try reading the posts. It isn't everyone's cup of tea if it isn't yours just lay off it and go have a beer.


Santiago

SnowmanSteiner

If you were worried about offsetting the weight of a turbo you would be better off, adding a brace to the opposite side of the engine, or even cables, as they resist tension well, but will still contract under compression.

- Steiner

1987RX7guy

iTrader: (3)

The reason I was thinking was to free up space for my Dual throttle body setup so that I can have a shorter run of the intercooler piping along with the slight benefit of the lower CG. Also when mentioned the better water pump belt coverage is also a good reason to do it. All in all I think it is a good idea but aparantly some people don't.