Cjm twin fuel pump wiring

tiller · 05-24-2024, 02:56 PM

Hey guys Iam back , need some assistance on wiring up my twin walbro 450 to the bottom of the hat, has anyone stacked the red/ black for both pumps together in the existing spot for a single pump.?.? Any help is much appreciated not a electrical guy just good with the mechanical side of things.

Spooler · 05-24-2024, 07:06 PM

The positives (Red Wires)have to been on separate wires/pins to be able to control the pumps individually. The grounds (Black Wires) can use the same pin. I used the top hat for the grounds but the problem is you have to scrap off the anodiziing to be able to get a good ground. Hire somebody if you have no clue.

phunk · 06-08-2024, 06:04 PM

The last 2 batches of the CJM twin pump have a hole next to the 6-pin connector that is plugged off with a gold anodized aluminum crush washer and stainless screw. This hole is there to accommodate a Radium bulkhead stud (https://www.radiumauto.com/Electrica...ack-P1049.aspx) for the sake of adding a 7th wire position. This is to allow for 4 pump wires and 3 sensor wires.

Since the radium studs are sold in a 6 pack, CJM is stocking them and selling them in singles. This change has not been reflected on the website as it will be added along with a handful of other updates all at once for that product page.

Spooler · 06-08-2024, 07:30 PM

Quote:

Originally Posted by phunk

The last 2 batches of the CJM twin pump have a hole next to the 6-pin connector that is plugged off with a gold anodized aluminum crush washer and stainless screw. This hole is there to accommodate a Radium bulkhead stud (https://www.radiumauto.com/Electrica...ack-P1049.aspx) for the sake of adding a 7th wire position. This is to allow for 4 pump wires and 3 sensor wires.

Since the radium studs are sold in a 6 pack, CJM is stocking them and selling them in singles. This change has not been reflected on the website as it will be added along with a handful of other updates all at once for that product page.

Cool deal. Getting a good ground was a pain in the butt when I installed my surge tank. I got it right the 2nd try.

05-24-2024, 02:56 PM	#1 (permalink)
tiller Enthusiast Member Join Date: Feb 2011 Location: ontario Posts: 370 Drives: 09 370z touring Rep Power: 14	Cjm twin fuel pump wiring Hey guys Iam back , need some assistance on wiring up my twin walbro 450 to the bottom of the hat, has anyone stacked the red/ black for both pumps together in the existing spot for a single pump.?.? Any help is much appreciated not a electrical guy just good with the mechanical side of things.

06-08-2024, 06:04 PM	#3 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	The last 2 batches of the CJM twin pump have a hole next to the 6-pin connector that is plugged off with a gold anodized aluminum crush washer and stainless screw. This hole is there to accommodate a Radium bulkhead stud (https://www.radiumauto.com/Electrica...ack-P1049.aspx) for the sake of adding a 7th wire position. This is to allow for 4 pump wires and 3 sensor wires. Since the radium studs are sold in a 6 pack, CJM is stocking them and selling them in singles. This change has not been reflected on the website as it will be added along with a handful of other updates all at once for that product page. Rusty, Leingod, ZontheRocks and 1 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Throttle Body Wiring with P Codes / Electrical Prob with Fuel Pump	DylansZ	Engine & Drivetrain	3	02-07-2023 10:34 AM
When do you need a twin fuel pump?	phunk	Forced Induction	46	09-29-2020 08:05 PM
G37 Aeromotive 340 Pump, Wiring Upgrade & Fuel Return Install	rovert	DIY Section (Do-It-Yourself)	2	12-27-2019 01:42 PM
anyone have instructions or pics of installation of the s1.se and twin fuel pump	DUSHER	Engine & Drivetrain	0	12-15-2019 04:43 PM
Fuel Pump Relay - Does anyone sell a harness kit to avoid cutting OEM wiring?	Jayhovah	Engine & Drivetrain	3	10-04-2016 10:56 PM

05-24-2024, 07:06 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,832 Drives: 2013 Nismo 370z Rep Power: 2684392	The positives (Red Wires)have to been on separate wires/pins to be able to control the pumps individually. The grounds (Black Wires) can use the same pin. I used the top hat for the grounds but the problem is you have to scrap off the anodiziing to be able to get a good ground. Hire somebody if you have no clue.