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Anyone use the Speedwire remote kill switch? #3240632
06/26/24 07:59 AM
06/26/24 07:59 AM
Joined: May 2004
Posts: 12,481
Taxes & Virus's R-US, NY
Dragula Offline OP
I Live Here
Dragula  Offline OP
I Live Here

Joined: May 2004
Posts: 12,481
Taxes & Virus's R-US, NY
Looking to see if anyone has installed one and tried it. I am assuming these work well since Speedwire has a good reputation.

https://speedwiresystems.com/listings_portfolio/500-amp-remote-relay-shut-off

500-Amp-Battery-Shut-Off.jpeg

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Anyone use the Speedwire remote kill switch? [Re: Dragula] #3240669
06/26/24 12:10 PM
06/26/24 12:10 PM
Joined: Jan 2003
Posts: 19,575
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,575
Las Vegas
I have in the past. I only use Speedwire stuff in my cars anymore. Not cheap but the best Ive used.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: Anyone use the Speedwire remote kill switch? [Re: Dragula] #3240679
06/26/24 01:09 PM
06/26/24 01:09 PM
Joined: May 2005
Posts: 55
VA Beach, VA
R
Runnoft Offline
member
Runnoft  Offline
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Joined: May 2005
Posts: 55
VA Beach, VA
Originally Posted by Dragula
Looking to see if anyone has installed one and tried it. I am assuming these work well since Speedwire has a good reputation.

https://speedwiresystems.com/listings_portfolio/500-amp-remote-relay-shut-off
I've been using their 500 amp switch since 2019 but just the switch, not the kit with the buttons and brackets. I don't think they offered it in kit form at the time so I bought my own button and made a bracket. I do know I took 50+ lbs out of the car by moving to a lightweight lithium battery mounted near the firewall instead of the full size battery in the trunk and reducing the length of 1/0 battery cables using this remote switch. No problems. The weight difference in the battery cables themselves was around 10lbs.


Cruiser: 66 Dodge Coronet 500, Indy SR 440, Gen 7 Accel EFI = 11.38 @ 116.
Racing: Brand X, X275 Procharged Smallblock on M1, Leafsprings, Holley EFI = 4.30 @ 168

Re: Anyone use the Speedwire remote kill switch? [Re: Runnoft] #3240756
06/26/24 07:55 PM
06/26/24 07:55 PM
Joined: Dec 2005
Posts: 12,438
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
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Joined: Dec 2005
Posts: 12,438
Fulton County, PA
I have acquired those contacts from one of my component sources, and we set them up a little differently, but they work great. I won't use a regular master switch to carry the load anymore unless I'm forced to.

The big advantage is they can be located anywhere in the car since they are remotely operated.


If the results don't match the theory, change the theory.
Re: Anyone use the Speedwire remote kill switch? [Re: Runnoft] #3240758
06/26/24 08:01 PM
06/26/24 08:01 PM
Joined: Dec 2005
Posts: 12,438
Fulton County, PA
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CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
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Joined: Dec 2005
Posts: 12,438
Fulton County, PA
Originally Posted by Runnoft
Originally Posted by Dragula
Looking to see if anyone has installed one and tried it. I am assuming these work well since Speedwire has a good reputation.

https://speedwiresystems.com/listings_portfolio/500-amp-remote-relay-shut-off
I've been using their 500 amp switch since 2019 but just the switch, not the kit with the buttons and brackets. I don't think they offered it in kit form at the time so I bought my own button and made a bracket. I do know I took 50+ lbs out of the car by moving to a lightweight lithium battery mounted near the firewall instead of the full size battery in the trunk and reducing the length of 1/0 battery cables using this remote switch. No problems. The weight difference in the battery cables themselves was around 10lbs.


Take the big cable out and replace it with 2ga and save even more. You running cables real short, you could probably get by with 4 ga.

Once the engine is running, that big cable is just dead weight.

2ga is all I've used for many years, big motors, high compression, doesn't matter. Just use good parts and a good starter.


If the results don't match the theory, change the theory.
Re: Anyone use the Speedwire remote kill switch? [Re: CMcAllister] #3240791
06/26/24 10:58 PM
06/26/24 10:58 PM
Joined: Jan 2004
Posts: 4,645
Motor City
6
6PKRTSE Offline
master
6PKRTSE  Offline
master
6

Joined: Jan 2004
Posts: 4,645
Motor City
I have not used there kill switch, but I used many of there products to wire my car. All very nice stuff, but as mentioned very pricey.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.






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