I would like to say first off there are other ways to obtain more amperage. I just like a challenge, thats why I own an FD and not a Vette. I admit there are some disadvantages to this design as well as advantages. I need more amperage to run my fans etc. My design is to run two separate systems. This means my cooling system will have its own alternator, battery and the circuit will be electrically detached from the other charging system. Here is a link to a picture which shows the second alternator installation. The system will be set up as two 100 amp units and in my view will work each unit far less than a single 200 map unit. Ya it will take some HP but not much at all.
http://members.***.net/stdotjohn/Rx7...Size%20600.jpg

 

Interesting... but pretty pointless. What are you running that you need so much amperage that you need an entire extra alternator?

 

cool but you could have done so many other things... i dont know why one alternator couldnt do that? also, you could have benefited from the vacuume hose job just as much!

also, how do you want to fit the air pipe back on?

its a nice project though! let us know if the difference is worth it

 

O.o

 

Uh...200 amp capacity? I don't even think that the Baja 1000 vehicles need that much to power their multiple light setups...

You are adding a lot of weight to the car (an additional separate electrical system? with its own battery?) and drag on the engine that could surely be solved in a less complicated manner.

 

Are those fans on the stock IC pulling any significant air? They look to be very small.

The stock IC is restrictive, spend time and money to try and improve the car with functional mods. Reduce flow restrictions in the intake tract. A larger than stock SMIC is a good choice IMHO. If you had a decent SMIC a properly sized fan would be a good addition.

 

I have a 200A alternator that puts out 100A at idle. With everything running in my car, I need 90A at idle. I've posted on this a few times, so if you search for my name, you'll find out more info. If you want to buy one of the alternators, call my shop and ask for Scott. Tell him that you want the 200A alternator that Alan has. Mazsport's website with contact info is in my sig.

 

why not just get a higher amperage alternator??

and an opima battery

what u plan on powering with these, city park spotlights??

 

All your points make séance and I won't disagree for a minute. The fans on the IC pull around 8 amps each. They are brake duct cooling fans cost was about 40 dollars. I have a 15 amp fan on my oil cooler the cost of that mod was 20 dollars. I have another 15 amp fan under the turbo's pulling out heat for another 30 dollars. They are controlled by thermostats, 30 dollars each. I am less concerned about making power at this point the car is fast enough. I have a street port with a open exhaust to the rear muffler. I have up graded my radiator as well but we all know there is a lack of air flow to the engine bay. I also don't want to mess with the body IE add on hood. Most of all I enjoy the process of trying new things. I don't think some of you realize that idle is where our charging systems fall off. I mean really lack output. Add heat in the mix which there is an abundance of there's even less alternator output realized. Run you car a while and turn on your lights, fans etc and sit at idle hit the brakes and hear your fan speed slow. At idle we are in the red amperage wise. Thats why one could use the air pump wiring to disengage electrically the second alternator above approximately 3k. Nothing has been altered, hacked so I can set it back up factory wise in an hour or so.

 

The FD actually has a damn strong alternator. Is yours just a bit old and tired? Have you thought about upgrading the wiring in the charging system harness?

I'm not really sure what you're trying to gain with all those fans...

Dale

 

Why4

 

The stock alternator is very strong and pianoprodigy already showed how to get 100 amps at idle using only one alternator. Doesn't make sense to use two alternators.

 

I think if you put nice vented hood, you can take all those fans out.

Amel

 

lol, kinda reminds me of when i was 16 and strapping as many fans into my computer as possible to overclock it

 

Well,
I could install a 200 amp unit but thats just too easy, thats the hole point. If I wanted a bigger IC I would get one. Where did all the creativity go? Chance are I wont use this set up but surely I will gain knowledge, experience in a lot of ways. Guys thats the way people develop new systems. Most ideas, experiments are a bust, we all fail over and over but in the end we learn a lot about what interests us. If I wanted a faster car I would get a Corvette, 3 rotor etc. Thats just no fun, theres no thinking being done. We all can condemn something, but no one can develop anything new just copy others.

 

This has got to be the stupidest thing I've every read.
Do you plan on living in the engine bay (the need for excessive heat control).

Why don't you encase you turbos in liquid Nitrogen?

What makes you think the engine bay has a "lack of airflow"?
Seams like a pretty big hole under the car where the engine sits.

Oh, is it because it gets hot to the touch?? Or you can "see" heat rising up from the headlight covers at stoplights?

Your fans are futile and pointless. The extra alternator is hilarious. As soon as your car is in motion all the flow your puny fans put out is overshadowed by ram air through all the ducts. I wouldn't be surprised if all your fans don't actually hinder the airflow through the oil coolers & (sigh) brake ducts

If your soo concerned with underhood temps at idle when your sitting still...............

PROP THE HOOD OPEN.

 

I'm not condemning what you've done I'm speaking to it in a practical manner.

A small fan on the brakes will not cool them much at all. Consider how much kinetic energy the vehicle has at speed. Then consider basically all of that energy is dissapated to the brakes. Calculate how much heat energy is transferred to the brake rotors and how hot they get. Now look at your fan capacity, how much will those brakes cool with the little fan? Now consider at speed your fan(s) impede airflow vs. ducted brakes.

It isn't bashing, it is called engineering. Do the math on your mods before you just throw small cheap fans on everything. Most likely they will hurt as much as they will help.

Same goes for the alternator, if you want a higher capacity unit get the 200a one that fits in the stock location.

 

Critics,
Thanks for sharing.
My coolant temps stay under 200, as well as my oil temps. My engine heat soak is not a issue. I have gages which I can see my coolant temps in two places, my oil temps are viewable going in the cooler and leaving the cooler. I have an under-hood temp sensor as well. Nothing elaborate. I spent 25 bucks and some wiring to set this up. I just like seeing things unfold. I also have a few LED'S wired in to my fan circuits on the action side electrically so to verify likely operation. Again I just like projects and agree the two alternator project will be scraped. I do like the idea of a 4L60E auto transmission and have been organizing a mock up to see how it might work. Yes I would have to change the diff ratio but it looks promising so far.

 

Odd indeed, but I guess I can understand the desire to experiment...

 

wow, this little light doesnt really light my room well. i guess i could replace it with a decent light but i think ill just get 5 more of these shitty lights instead

 

Come on fellahs, this guy is having fun with his car and learning valuble skills while he is at i,,,,,,valueble skills whileeee,,,valuble skills...........

I can't do it!!! jsj your on your own here bub. I can't even stick up for you with a straight face. It's hard to type while I am hysterically laughing with tears running down my face..

SG

 

THis getting to sound like a graduate from CPU overclockers....
Used 10 fans and watercooled CPU to get the 5Ghz overclocked of a 2.4Ghz P4.

Now you try to overclock your engine huh with that many fans all over the place... I don't think it works that way....

It works well on electronics, not so much mechanicals....

 

J.S.J., while everyone will not agree with the practicality of two alternators, I admire your overengineering spirit, as I call it.

 

Christ people, so what if he's trying something new, and most likely over-engineering it in the extreme? Its his car, he can experiment however he wants....

 

Good job F0RSAKEN, you completed what I could'nt.

SG