Fluxuating volts?? Any ideas

[RBadam]

let me start off by saying im a noob here, that said i have a rb25 and wheni hit my fan switch and have the headlights on i can watch my volt gauge jump around from 13 to 14,5 volts when goin to idle and i can feel the car gettin close to dying whats the deal???

[Cpt_Impossible]

You check your grounding? Clean all of the grounding connections or ad more and see if that helps.

[Joe]

Todd i deleted your post. if you cant be helpfull, dont post.

[RB20DETodd]

Todd i deleted your post. if you cant be helpfull, dont post.

HAHA, ok my experience, i was sitting in the crazyest traffic known to man had to flip on my back up fan, the 2md permacool, 20 mins later my lights got dim and i smelled a funny smell engine acted like it wanted to die, started making a weird whineing sound turns out my alternator took a ****, alternator might be taking a ****.

[RBadam]

You check your grounding? Clean all of the grounding connections or ad more and see if that helps.

ill do that this weekend thanks

[Carl H]

electrical load is high on these motors running cooling fans off of an 80 amp alternator.

[RB20DETodd]

electrical load is high on these motors running cooling fans off of an 80 amp alternator.

werd werd and werd, the new one venus sent was a 90A woohoo, 2 fans fried mine.

[l0nestar]

Is there a better replacement alternator, or just have the stock one re-wound to 90 or 100amps?

Thanks.

[l0nestar]

I think that I may have just answered my own question.

Per : zer...age=4

Mazda KL03 - 2.5L v6 (2nd Gen (93-97) MX-6 / Probe GT) alternator is a direct fit

Mitsubishi # IM 830 -14.4volts

And according to Impreziv

all RB engines share the same starter as most longitudinal Subaru drivetrains. all the 2.5RS, WRX, STi, 2.5 legacys have the same one.

So, thanks for NUTHIN Carl!

[300Plus]

Wasnt there a post somewhere showing how to use a higher amp output nissan alt from a quest or something ? i would like to find that post.

[l0nestar]

Possibly, I remembered something about that after you said it. I cant remember if it was here or RaceBread. I'll look as well.

[RBadam]

I think that I may have just answered my own question.

Per : zer...age=4

Mazda KL03 - 2.5L v6 (2nd Gen (93-97) MX-6 / Probe GT) alternator is a direct fit

Mitsubishi # IM 830 -14.4volts

And according to Impreziv

So, thanks for NUTHIN Carl!

is this a for sure thing?? because that would be definitly something to look into for me.

[240z4u]

That was on racebread (quest alt) and it was my post. I need to ammend a few things but it has helped me out a bunch.

Evan

[300Plus]

That was on racebread (quest alt) and it was my post. I need to ammend a few things but it has helped me out a bunch.

Evan

Ah that must have been it. Post the link over here too.

[l0nestar]

Evan,

Thanks alot for the info! I'm trying to create a spreadsheet (Excel) for the RB series (RB25 in perticular) with all of the info on it from here and RaceBread. I started it last night. Any other info is greatly appreciated! Again, thanks for the info!