Alternator upgrade - Page 4 - ZR-1 Net Registry Forums

-=Jeff=- · 04-25-2020

Second chance do you have a post/ write up of the Spal fan install?

secondchance · 04-25-2020

Quote:

Originally Posted by -=Jeff=-

Second chance do you have a post/ write up of the Spal fan install?

Here you go.
https://www.zr1.net/forum/showthread.php?t=30609

1LEZ · 05-15-2020

Did you run the additional 8 gauge wire to the alternator? If so where does the wire terminate? Thanks for the thread! I already got the altenator you recommended

-=Jeff=- · 05-15-2020

Quote:

Originally Posted by 1LEZ

Did you run the additional 8 gauge wire to the alternator? If so where does the wire terminate? Thanks for the thread! I already got the altenator you recommended

If you are asking Secondchance, he said he did in his first post

32valvZ · 05-15-2020

Is there any advantage to adding the 8 gauge and 18 gauge for the fan motor without installing a higher amp unit? I have a brand new stock one form Jerrys already installed.... exercise in futility?

secondchance · 05-15-2020

Quote:

Originally Posted by 32valvZ

Is there any advantage to adding the 8 gauge and 18 gauge for the fan motor without installing a higher amp unit? I have a brand new stock one form Jerrys already installed.... exercise in futility?

8 ga wire was added between th alternator output to the battery to allow for additional current and 18 ga between the battery to the fan motor. I’m not an electrical engineer and above wiring upgrades were replication of what Marc does when he upped alternator amperage on another WAZOO Z.
Thicker wire alone, may not have much effect.

-=Jeff=- · 05-15-2020

Actually the thicker the wire the LESS resistance but the thicker the wire the more current can get pushed through without burning it up.. Heat is generated by the resistance

secondchance · 05-15-2020

[QUOTE=-=Jeff=-;309294]Actually the thicker the wire the LESS resistance but the thicker the wire the more current can get pushed through without burning it up.. Heat is generated by the resistance[/QUOTE

Without alternator with higher output, what effect would larger ga wire have on fan motor?

-=Jeff=- · 05-15-2020

More power/current flow to the fans. So the fans would benefit of the larger wiring as there will be less power drop at the fan

secondchance · 05-15-2020

Quote:

Originally Posted by -=Jeff=-

More power/current flow to the fans. So the fans would benefit of the larger wiring as there will be less power drop at the fan

There is your answer 32valvZ.

04-25-2020	#31
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Alternator upgrade Second chance do you have a post/ write up of the Spal fan install? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

05-15-2020	#33
1LEZ Join Date: Nov 2016 Location: Tx Posts: 101	Re: Alternator upgrade Did you run the additional 8 gauge wire to the alternator? If so where does the wire terminate? Thanks for the thread! I already got the altenator you recommended

05-15-2020	#35
32valvZ Join Date: Nov 2007 Location: Sunshine State Posts: 1,071	Re: Alternator upgrade Is there any advantage to adding the 8 gauge and 18 gauge for the fan motor without installing a higher amp unit? I have a brand new stock one form Jerrys already installed.... exercise in futility? __________________ [B]1990 #2815[/B] [COLOR="Red"][B]Red/Red[/B][/COLOR] Ported Plenum & IH (by Pete) Haibeck Chip Rebuilt FPR (by Phil) FIC Injectors Watson LT Headers 3" Stainless Works exhaust Lingenfelter Open Air Lid Bill B Built Transmission Shifter & C Beam Plates [FONT=Impact][COLOR=red]1992 [COLOR=black]#[/COLOR] 091[/COLOR][/FONT] [FONT=Impact][COLOR=#ff0000]Red/[COLOR=silver]Gray[/COLOR][/COLOR][/FONT] [B]SOLD[/B]

05-15-2020	#37
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Alternator upgrade Actually the thicker the wire the LESS resistance but the thicker the wire the more current can get pushed through without burning it up.. Heat is generated by the resistance __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

05-15-2020	#38
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,723	Re: Alternator upgrade [QUOTE=-=Jeff=-;309294]Actually the thicker the wire the LESS resistance but the thicker the wire the more current can get pushed through without burning it up.. Heat is generated by the resistance[/QUOTE Without alternator with higher output, what effect would larger ga wire have on fan motor?

05-15-2020	#39
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Alternator upgrade More power/current flow to the fans. So the fans would benefit of the larger wiring as there will be less power drop at the fan __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978