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Mechman Alternators

So my new 240a alternator isn't working at idle...


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Finally got this all sorted out. Josh from mechman is a great guy!

Edited by Syphlyn

Syphlyns 2000 F150 4.6L V8

H/U: Kendwood KDC-X898

Speakers: 4 x Alpine SPR-68 Speakers

4 Channel Amp: Alpine PDX-F4

Sub: Sundown Zv4 12

Sub Amp: Sundown SAZ-2000D

Box: 2.75 Cu Ft @ 31Hz

Alternator: Mechman 250A elite series

Wiring: All KnuKoncepz 0 gauge OFC + KnuKonceptz Krystal RCAs

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6phase/hair pin for lower turn on speed.

What does that say it does? Like 120 at idle? so maybe around 80-90 real world?

Older mechman's that I have used that were 125a at idle did like 100+ hot at idle,

OP, does your alt have a small pulley on it? b/c you might need a smaller pulley to get the RPM on the alt up to put something out at idle.

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6phase/hair pin for lower turn on speed.

What does that say it does? Like 120 at idle? so maybe around 80-90 real world?

Older mechman's that I have used that were 125a at idle did like 100+ hot at idle,

OP, does your alt have a small pulley on it? b/c you might need a smaller pulley to get the RPM on the alt up to put something out at idle.

Yeah it came with a small pulley on it, but it's not even putting out enough at idle to maintain a charging voltage it just drops right to 12.6-13.0. I was told prior to purchasing I should be 135-140 amps @ 6-700 rpm...lol my stock alt is 130a (probably does that around 2000-2500 rpm) and it put out way more at idle.

Edited by Syphlyn

Syphlyns 2000 F150 4.6L V8

H/U: Kendwood KDC-X898

Speakers: 4 x Alpine SPR-68 Speakers

4 Channel Amp: Alpine PDX-F4

Sub: Sundown Zv4 12

Sub Amp: Sundown SAZ-2000D

Box: 2.75 Cu Ft @ 31Hz

Alternator: Mechman 250A elite series

Wiring: All KnuKoncepz 0 gauge OFC + KnuKonceptz Krystal RCAs

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