Team Integra Forums banner
1 - 11 of 11 Posts

·
Registered
Joined
·
118 Posts
Discussion Starter · #1 ·
I have been reading a lot and still have not seen some basic info. This info would probably be a good info for everyone.

1. What is the output amperage of stock integra alternators at:
- Idle
- Driving rpm
- I hear 90 amps but what rpm?

2. How much room is available for a larger alternator?
- I have not seen any stock alternator dimensions or
- any 160 amp or 200 amp alternator dimensions
- how big of a difference is there?

3. Is buying a rebuilt alternator or rebuilding yours the best option?
- By how much can you increase the oem alternator's amp rating if you get it rebuilt?

4. How to test current alternator.
- Removing battery cables when car is running is not a safe way to do this.
- Not sure of this method: Using a multimeter put negative on a strong ground. Put positive on the B+ cable coming from the alternator. Should read 13 or 14 Volts.

Some good alternator vendors:
Heard alot about:
http://stores.ebay.com/Iraggi-Alternator-and-Electronics

Others:
http://www.powermastermotorsports.com/
http://www.mralternator.com/main.shtml
http://www.mean-green.com/
http://www.4alterstart.com/door/
http://www.ohiogen.com/
http://www.excessiveamperage.com/
 

·
Registered
Joined
·
814 Posts
PpDdAiDdDdYy on Sep/09/07 said:
I have been reading a lot and still have not seen some basic info. This info would probably be a good info for everyone.

1. What is the output amperage of stock integra alternators at:
- Idle
- Driving rpm
- I hear 90 amps but what rpm?

2. How much room is available for a larger alternator?
- I have not seen any stock alternator dimensions or
- any 160 amp or 200 amp alternator dimensions
- how big of a difference is there?

3. Is buying a rebuilt alternator or rebuilding yours the best option?
- By how much can you increase the oem alternator's amp rating if you get it rebuilt?

4. How to test current alternator.
- Removing battery cables when car is running is not a safe way to do this.
- Not sure of this method: Using a multimeter put negative on a strong ground. Put positive on the B+ cable coming from the alternator. Should read 13 or 14 Volts.

Some good alternator vendors:
Heard alot about:
http://stores.ebay.com/Iraggi-Alternator-and-Electronics

Others:
http://www.powermastermotorsports.com/
http://www.mralternator.com/main.shtml
http://www.mean-green.com/
http://www.4alterstart.com/door/
http://www.ohiogen.com/
http://www.excessiveamperage.com/
Your best bet is to get a NEW aftermarket alternator that will still mount to the brackets on your car. Generally larger makes more output but the difference between a 100A alternator and a 150A alternator isn't that large. Are you getting a larger alternator to support your radio equipment or something?
 

·
Registered
Joined
·
2,089 Posts
in reality u can put almost any alternator on there as long as the pulley is similar or the same and it clears the chassis and engine and axle...

Im curious about what ur doing as well. What is it?

I was doing research and still am but i highly doubt were working on the same thing though right now we are on common ground because i want to know this information too...

I had read that our alternators are only 80 amps... and they are in fully by 5000 rpms but ive has many different numbers its pretty frustrating... im trying to find an equation to know for sure.
 

·
Registered
Joined
·
118 Posts
Discussion Starter · #5 ·
I am not doing anything yet. I just wanted to find some information and make it available.

The 80 or 90 amp rating for our stock alternators is probably at some specific rpm. I highly doubt it is pushing 80 amps at idle. I want to know what it pushes at idle.

I would like to hear from someone who has changed their alternator to a 200amp one. How much of a difference in size is there from a 80-90 amp alternator to a 200 amp alternator?

Sorry about the bump.
 

·
Registered
Joined
·
118 Posts
Discussion Starter · #7 ·
Well somewhere it was written that by removing the negative off of your battery while the car is running, would confirm whether or not your car is running off of your alternator or your battery. Hence your alternator works, if your car still runs after removing the battery ground.

Dont do the above.
 

·
Registered
Joined
·
396 Posts
why get a new alternator? the stock one is very very good for most applications. i myself was running tons of audio stuff off my stock one for months with no problem.

when i got my yellow top i ran it as a second battery with a 3000 watt rms kicker amp...not even slight light dimming. incredibly impressive

stay away from ebay alts. i got a "160" amp one so i could get rid of the second battery.... it performed worse than my stock alt, i killed the thing in less than a month
 

·
Registered
Joined
·
215 Posts
How loud did you have it up? You are getting no where near 3000 watts with an 80 amp alternator. If you're talking about the ZX2500 it's fused at 300 amps and even though it may not run at 300 amps you won't get no where near 3000 watts.

While my car ran fine with 1600 watts rms amp it was no where near that much power was being given to it. Ran the same system on a 200 amp alternator and it was much louder.

I will definitely agree on the ebay alternators. Stay away from them.

Called High Output alternators not too long ago and the biggest size for the Integra they would make is 170 amps.

PpDdAiDdDdYy on Sep/09/07 said:
Well somewhere it was written that by removing the negative off of your battery while the car is running, would confirm whether or not your car is running off of your alternator or your battery. Hence your alternator works, if your car still runs after removing the battery ground.

Dont do the above.
If your alternator doesn't work your car would die not too long from starting it.
 

·
Registered
Joined
·
396 Posts
amp was rated at 2900 watts rms, yes im aware i didnt get to a real 2900, but to most people, 2900 watts is 2900 watts...although at that point my car probably wasnt running at 14.4 volts.
 
1 - 11 of 11 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top