Pilot Alternator suggestions

[mylows10 5,000+ posts]

how do you bypass the PCM control of the alt so the PCM doesn't turn the alt off, making the upgrade useless?

It's done thru a different plug that tied into a switched source. The stock plug isn't used

 

[argenis69 10+ year member]

It's done thru a different plug that tied into a switched source. The stock plug isn't used

Does this affect the engine or mpg performance in any way?

 

[mylows10 5,000+ posts]

Does this affect the engine or mpg performance in any way?

No. Might trigger the battery light. But that's it

 

[keep_hope_alive Premium Member]

all high output alternators worsen fuel economy. it takes more energy by the engine when the alternator produces more current. alternators convert mechanical rotational energy into electrical energy + heat.

because more energy is used to spin the alt, engine power delivered to the flywheel also suffers.

so the answer is yes, performance and fuel economy worsen when you increase current production by the alternator because the engine works harder to spin the alt. many people with smaller engines have experienced the engine stall during high current demands on a H.O. alt.

because high output alternators are capable of producing more current, they are capable of demanding more work done by the engine.

if you disconnect a plug with a CANBUS connection you will get a CEL code/light. You won't get rid of that code until the CANBUS connection is re-established.

driving around with error lights isn't a proper installation and the dealership will have an excuse to not warranty anything connected to the associated system.

finally, bypassing the PCM control of the alt will greatly noticeably fuel economy and performance. the PCM uses the alt control to balance power, fuel economy, and current output of the alt. the alt is turned off to save fuel and boost acceleration. If you bypass the fuel saving methods of a stock alt, you'll see a 2-4 mpg decline, all else equal. You can verify this by driving around with your headlights on (typically forces the alt to stay on). If you bypass PCM control and increase alt size, i predict you'll see a 5-7 mpg decline (at times of high current usage).

 

[argenis69 10+ year member]

all high output alternators worsen fuel economy. it takes more energy by the engine when the alternator produces more current. alternators convert mechanical rotational energy into electrical energy + heat.
because more energy is used to spin the alt, engine power delivered to the flywheel also suffers.

so the answer is yes, performance and fuel economy worsen when you increase current production by the alternator because the engine works harder to spin the alt. many people with smaller engines have experienced the engine stall during high current demands on a H.O. alt.

because high output alternators are capable of producing more current, they are capable of demanding more work done by the engine.

if you disconnect a plug with a CANBUS connection you will get a CEL code/light. You won't get rid of that code until the CANBUS connection is re-established.

driving around with error lights isn't a proper installation and the dealership will have an excuse to not warranty anything connected to the associated system.

finally, bypassing the PCM control of the alt will greatly noticeably fuel economy and performance. the PCM uses the alt control to balance power, fuel economy, and current output of the alt. the alt is turned off to save fuel and boost acceleration. If you bypass the fuel saving methods of a stock alt, you'll see a 2-4 mpg decline, all else equal. You can verify this by driving around with your headlights on (typically forces the alt to stay on). If you bypass PCM control and increase alt size, i predict you'll see a 5-7 mpg decline (at times of high current usage).

Thank you very much for that information. So what do you recommend I should l do to get safe and better average?

Sent from my SM-N910V using Tapatalk

 

[keep_hope_alive Premium Member]

Thank you very much for that information. So what do you recommend I should l do to get safe and better average?
Sent from my SM-N910V using Tapatalk

Have a stock alt rebuilt so the CANBUS interface is maintained.

Buy a stock one used, have it modded. Quality Power will do that if singer won't.

Sent from my SM-G900V using Tapatalk

 

[argenis69 10+ year member]

Have a stock alt rebuilt so the CANBUS interface is maintained.
Buy a stock one used, have it modded. Quality Power will do that if singer won't.

Sent from my SM-G900V using Tapatalk

Any idea on what's the maximum amperage i could get out of an alternator like that?

 

[keep_hope_alive Premium Member]

Any idea on what's the maximum amperage i could get out of an alternator like that?

That is up to the individual company. You'll have to ask them directly

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