continous duty solenoid as master switch

FireSale · 07-27-2015, 11:44 PM

How about a transbrake style solenoid rigged to the backside lever on the cut off where the Morse cable is? Power it off the battery with a normal off momentary switch in the cabin. Punching the switch would only preform one operation, but "Turn the darn thing on" is the main use of the cable lever.

Remember NHRA says one switch in the kill circuit only.

Dale

Painter · 07-28-2015, 03:05 AM

I see two problems with this idea. First I dont believe a solonoid exists that will hold up in this application. But more importantly, in one of the two rule books it specifically says this is illegal. It may be in their big book that we dont get to see very often.

Kirk Morgan · 07-28-2015, 07:33 AM

We use a older Dodge diesel solenoid in our race car. It is the round type and we bought it at NAPA. I believe it was listed as a battery relay and was rated about a 100 amps. Hope this helps.

Kirk

Woodfin · 07-28-2015, 07:42 AM

I do know that M & M race cars installs a 200 amp continuous duty solenoid on all their dragster builds and it operates from both rear and drivers position with small push / pull toggle switches.

M & M has many dragsters in service so equipped.

07-27-2015, 11:44 PM	#1
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 126 Posts	Re: continous duty solenoid as master switch How about a transbrake style solenoid rigged to the backside lever on the cut off where the Morse cable is? Power it off the battery with a normal off momentary switch in the cabin. Punching the switch would only preform one operation, but "Turn the darn thing on" is the main use of the cable lever. Remember NHRA says one switch in the kill circuit only. Dale __________________ Dale Shearon 68 Mustang 6394

07-28-2015, 03:05 AM	#2
Painter Member Join Date: Dec 2012 Posts: 227 Likes: 4 Liked 162 Times in 45 Posts	Re: continous duty solenoid as master switch I see two problems with this idea. First I dont believe a solonoid exists that will hold up in this application. But more importantly, in one of the two rule books it specifically says this is illegal. It may be in their big book that we dont get to see very often.

07-28-2015, 07:33 AM	#3
Kirk Morgan Member Join Date: Jan 2009 Posts: 230 Likes: 1 Liked 81 Times in 45 Posts	Re: continous duty solenoid as master switch We use a older Dodge diesel solenoid in our race car. It is the round type and we bought it at NAPA. I believe it was listed as a battery relay and was rated about a 100 amps. Hope this helps. Kirk

07-28-2015, 07:42 AM	#4
Woodfin Senior Member Join Date: Sep 2006 Location: Kilgore TX Posts: 540 Likes: 8 Liked 288 Times in 109 Posts	Re: continous duty solenoid as master switch I do know that M & M race cars installs a 200 amp continuous duty solenoid on all their dragster builds and it operates from both rear and drivers position with small push / pull toggle switches. M & M has many dragsters in service so equipped.

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