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Old Jun 23, 2025 | 11:10 AM
  #21  
BLOWNBLUEZ06@RKT Performance's Avatar
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Originally Posted by Beastifus
Hey Bluez, I guess I found you too late after I already bought the Mechman 240--I saw your website and it had clutches and motor mounts, I didn't see anything about alternators. But you say you've installed lot of them?

You're saying you didn't have to change the pulley or the idle? This is the one I got: https://www.mechman.com/s-series-bil...finish-bstock/ along with the SacCity Cable upgrade. Is that the same one you sell?

It makes a bit of a whine and it seems like the belt was a lot more difficult to put on than before. The multimeter says 14.6 volts at Idle, but it was sitting at 13 when I first started it up... I see you're in Forney--I'm in Plano, what all services do you do? Thanks!

Here is a link to a YouTube video where you can hear it in the back. It sounds like a 'supercharger" whine. The instructions say that could be a grounding issue?? I wonder if this "B-Stock" is defective:
Hey, I'll PM you so we can go over things to hopefully help you solve any issues your car/alternator might have.

Bret

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Old Jul 13, 2025 | 02:49 AM
  #22  
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Originally Posted by gsflyer2011
Warning. It is on Mechman website , it warns that their 250 amp alternators do not charge at idle. Unless you bring the idle up. Listen to the manufacturer. Everyone else BS.
I just wanted to follow up on this to eliminate confusion for anyone who stumbled upon this thread:

It is NOT the 250 AMP that Mechman puts the warning on, it's the 240 AMP.

Mechman 250 AMP

Mechman 240 AMP

I was just disappointed that you couldn't get the 250 AMP in chrome, but there are custom color options. Hope this helps.
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