high output alternator

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Sep 22, 2018 | 03:44 PM

sm0kinvette

Thread Starter

Instructor

Joined: Jan 2017

Posts: 205

Likes: 6

high output alternator

Do I run the risk or damaging my electronics if I run a 200 or 220amp high output alternator on my z06? I have aftermarket fans, fuel pumps with bap and a sound system.

Sep 22, 2018 | 07:51 PM

Unreal

Team Owner

Joined: Nov 2007

Posts: 24,035

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From: Gilbert AZ

Contact Bret B, get a mechman. Should be no issue.

Sep 23, 2018 | 04:04 PM

schpenxel

Race Director

Joined: May 2004

Posts: 16,667

Likes: 1,209

From: Raleigh, NC

St. Jude Donor '15

200/220amp is the max--doesn't mean it's cranking that out all the time.

Agree, contact Bret

Sep 23, 2018 | 10:20 PM

DEE_Vette

Racer

Joined: Oct 2012

Posts: 278

Likes: 11

From: Sum Where Mid-Low 9'S

I would Recommend 1gauge cable from Alt. to under hood Fuse Block...

Last edited by DEE_Vette; Sep 23, 2018 at 10:24 PM.

Sep 24, 2018 | 09:51 AM

CI GS

Le Mans Master

Joined: Apr 2013

Posts: 5,376

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Agree with all of the above. Talk to Bret aka “Blownbluez06” on here. You might not even need anything more than one of the 170amp Mechman alternators that he sells, along with the heavy gauge charge wire, which you can get from Bret as well. He’s a super guy to deal with and you won’t get a better deal anywhere that I could find. Just got back from vacation last night to find one of his beautiful black anodized 170amps sitting in my garage. Can’t wait to bolt that on.

Sep 24, 2018 | 10:59 AM

Mrbluedevil88

Instructor

Joined: Sep 2014

Posts: 156

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From: Long Island New York

Quote:

Originally Posted by CI GS

Do you have any pictures of that heavy gauge charge wire?

Sep 24, 2018 | 11:25 AM

Unreal

Team Owner

Joined: Nov 2007

Posts: 24,035

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From: Gilbert AZ

It is just a piece of cable. Nothing to look at.

Bret also sells the 200A+ versions. Just get ahold of him. He is the goto person for anything alternator/charging related on these cars.

Sep 24, 2018 | 12:35 PM

Patriot Six

Drifting

Joined: Jun 2016

Posts: 1,291

Likes: 222

From: Temecula, CA

It's the thick black-wrapped cable running from the alternator towards the firewall.

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Oct 4, 2018 | 07:12 AM

Smokeyjr

Emerging Vendor

Joined: Oct 2014

Posts: 4,081

Likes: 646

From: Wisconsin

I have a 240 amp mechman...with that said I run a larger cable from front to the rear...and from the alternator to the fuse box...no problems...Bret is the man!!
Remember larger cable...less resistance

Last edited by Smokeyjr; Oct 4, 2018 at 07:16 AM.

Oct 4, 2018 | 09:42 AM

#10

algZO6

Melting Slicks

Joined: Jun 2004

Posts: 2,836

Likes: 110

From: El Paso TX.

I have had two Mechs crap out on me and have a couple of buddies that have had issues as well. I now run a Nations and have had zero issues.

Last edited by algZO6; Oct 4, 2018 at 09:42 AM.

Oct 5, 2018 | 08:57 AM

#11

BLOWNBLUEZ06@RKT Performance

Supporting Vendor

Joined: Apr 2012

Posts: 2,673

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From: Forney TX

Quote:

Originally Posted by sm0kinvette

Do I run the risk or damaging my electronics if I run a 200 or 220amp high output alternator on my z06? I have aftermarket fans, fuel pumps with bap and a sound system.

Running a higher output alternator isn't the same as running a larger supercharger on a car because the alternator is a device that offers the current but doesn't force it. Current flow is a result of demand. If there's no demand, there is no current flow. If there is max current demand, there will be max current flow until the demand exceeds the ability at which point the voltage will begin to diminish.

Bret

Oct 5, 2018 | 10:03 PM

#12

silvrhand

Pro

Joined: Oct 2013

Posts: 520

Likes: 31

From: Austin, TX

make sure when you do this that you bypass the starter solenoid in the charging loop.

Oct 6, 2018 | 12:05 PM

#13

sm0kinvette

Thread Starter

Instructor

Joined: Jan 2017

Posts: 205

Likes: 6

thanks to everyone for your replies.

I am going to replace everything with 1/0 awg wire

Should I remove the stock alternator to starter charge wire? not sure if it branches off to other components.

I am going to run a charge wire from the alternator directly to the fuse box. Should I use one of the agm heavy duty fuses?

Oct 6, 2018 | 12:28 PM

#14

CI GS

Le Mans Master

Joined: Apr 2013

Posts: 5,376

Likes: 1,118

Quote:

Originally Posted by sm0kinvette

No need to. I didn’t bother, just because I was too lazy to put the car on the lift and pull the starter out. I have the new 1/0 wag wire, the stock alt to starter wire, the ECS aux fuel pump wire and the Racetronix FP harness all stacked on the lug on the new alternator (photo below). I just need to get a better rubber boot to cover the ring terminals better. My car is now showing the same voltage ( 14.7) at the battery - the the rear cubby - as it does on the alternator lug with the car idling.