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Voltage regulation questions


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I have a 250 amp Mechman alternator on my 07 F-150, and I'm wanting to be able to bump up the output voltage. I was wondering if their external adjustable voltage regulator is my only option, or if there's other products that do the same. Not saying I don't want to buy Mechman's product, I just want to know all of my options.

2007 Ford F-150 Reg. Cab. Flareside
250 Mechman Alternator
Sky High Car Audio Big 3
XS Power D3400
Rockford Fosgate 1/0 amp kit
Rockford Fosgate T1500-1bdcp
Rockford Fosgate T400-4
DC Audio Lvl 4 12"
Rockford Fosgate Punch 6.5" component
Rockford Fosgate Punch 6x8
Pioneer AVH-P2300DVD
SMD Volt Meter

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I have a 250 amp Mechman alternator on my 07 F-150, and I'm wanting to be able to bump up the output voltage. I was wondering if their external adjustable voltage regulator is my only option, or if there's other products that do the same. Not saying I don't want to buy Mechman's product, I just want to know all of my options.

The alternator in your truck is a PCM controlled alternator, and any alternator not plugged into the PCM will at minimum turn on a dash light. I believe that there might be a tuner or two that are available that can turn the light off.

Hope this helps.

Chris

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I have a 250 amp Mechman alternator on my 07 F-150, and I'm wanting to be able to bump up the output voltage. I was wondering if their external adjustable voltage regulator is my only option, or if there's other products that do the same. Not saying I don't want to buy Mechman's product, I just want to know all of my options.

The alternator in your truck is a PCM controlled alternator, and any alternator not plugged into the PCM will at minimum turn on a dash light. I believe that there might be a tuner or two that are available that can turn the light off.

Hope this helps.

Chris

well I don't really care about the dash light coming on. So does that mean I can't get a module that will change it?

2007 Ford F-150 Reg. Cab. Flareside
250 Mechman Alternator
Sky High Car Audio Big 3
XS Power D3400
Rockford Fosgate 1/0 amp kit
Rockford Fosgate T1500-1bdcp
Rockford Fosgate T400-4
DC Audio Lvl 4 12"
Rockford Fosgate Punch 6.5" component
Rockford Fosgate Punch 6x8
Pioneer AVH-P2300DVD
SMD Volt Meter

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Share on other sites

I have a 250 amp Mechman alternator on my 07 F-150, and I'm wanting to be able to bump up the output voltage. I was wondering if their external adjustable voltage regulator is my only option, or if there's other products that do the same. Not saying I don't want to buy Mechman's product, I just want to know all of my options.

The alternator in your truck is a PCM controlled alternator, and any alternator not plugged into the PCM will at minimum turn on a dash light. I believe that there might be a tuner or two that are available that can turn the light off.

Hope this helps.

Chris

well I don't really care about the dash light coming on. So does that mean I can't get a module that will change it?

We have not done full in depth research of all the possible symptoms. Feed back that we have had is just the dash light. Different firmware versions could cause different issues, so I can not say 100%.

Sorry man.

Chris

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I have a 250 amp Mechman alternator on my 07 F-150, and I'm wanting to be able to bump up the output voltage. I was wondering if their external adjustable voltage regulator is my only option, or if there's other products that do the same. Not saying I don't want to buy Mechman's product, I just want to know all of my options.

The alternator in your truck is a PCM controlled alternator, and any alternator not plugged into the PCM will at minimum turn on a dash light. I believe that there might be a tuner or two that are available that can turn the light off.

Hope this helps.

Chris

well I don't really care about the dash light coming on. So does that mean I can't get a module that will change it?

We have not done full in depth research of all the possible symptoms. Feed back that we have had is just the dash light. Different firmware versions could cause different issues, so I can not say 100%.

Sorry man.

Chris

Sorry, I guess I should've been more clear. When I was referring to a module, I wasn't referring to one that would fix the problem. I was asking if since that was the only problem, could I still get the the vcm and run it on the vehicle. Or maybe I misunderstood your reply.

2007 Ford F-150 Reg. Cab. Flareside
250 Mechman Alternator
Sky High Car Audio Big 3
XS Power D3400
Rockford Fosgate 1/0 amp kit
Rockford Fosgate T1500-1bdcp
Rockford Fosgate T400-4
DC Audio Lvl 4 12"
Rockford Fosgate Punch 6.5" component
Rockford Fosgate Punch 6x8
Pioneer AVH-P2300DVD
SMD Volt Meter

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People get lost on PCM.

And thinking "turning up the voltage" will help.

If you can maintain 13.7. GOOD.

The VCM will only up voltage. Not amperage.

So if you are at 13.8 ... Turn you volume up. And drop to 13.0. Adjustin the VCM up a volt won't do anything.

Not under load.

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People get lost on PCM.

And thinking "turning up the voltage" will help.

If you can maintain 13.7. GOOD.

The VCM will only up voltage. Not amperage.

So if you are at 13.8 ... Turn you volume up. And drop to 13.0. Adjustin the VCM up a volt won't do anything.

Not under load.

I understand that, it's just that it gets on my nerves that in the summer that I can start out at 14.3 and then after having to stop and crank it again several times it'll fall down around 13.4, 13.1 if it's really hot. I just want to be able to put in on a voltage and it stay there.

2007 Ford F-150 Reg. Cab. Flareside
250 Mechman Alternator
Sky High Car Audio Big 3
XS Power D3400
Rockford Fosgate 1/0 amp kit
Rockford Fosgate T1500-1bdcp
Rockford Fosgate T400-4
DC Audio Lvl 4 12"
Rockford Fosgate Punch 6.5" component
Rockford Fosgate Punch 6x8
Pioneer AVH-P2300DVD
SMD Volt Meter

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No. You don't.

When your running around 13.3 hot. Turning the voltage up a volt won't charge your shit any better. Why?

Cuz the alt is putting out 4 amps.

Upping voltage. ... Unless you can back it with amperage does shit.

Charge your batts at 20v and .5 amp ?!? You think you'll gain anything?

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