Neutral safety / starter relays - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hotrod 80 · 03-25-2014, 11:10 AM

I have the black 87 style relay that is powered 12v hot by the key i break the ground through the micro switch on the shifter in neutral and park . It seems these relays are having a hard time with the amp drw of the starter solinoid . Should this relay be a heavier duty relay ? Say like a S-55 borg warner ? When i bypass the relay the starter kicks in fine . Seems like the relay cant handle the amperage after a while . What are you guys using for this ?

hotrod 80 · 03-27-2014, 04:09 PM

The solinoid can be 40-50 amps at the point the key hits . The Ford relay can handle this inrush . The small black relays cant over time . You use the Ford relay to fire the chevy solinoid . Mopar also has something like this

03-25-2014, 11:10 AM	#1
hotrod 80 mini truck racer Join Date: Aug 2006 Location: Baytown , texas Posts: 3,010	Neutral safety / starter relays I have the black 87 style relay that is powered 12v hot by the key i break the ground through the micro switch on the shifter in neutral and park . It seems these relays are having a hard time with the amp drw of the starter solinoid . Should this relay be a heavier duty relay ? Say like a S-55 borg warner ? When i bypass the relay the starter kicks in fine . Seems like the relay cant handle the amperage after a while . What are you guys using for this ? __________________ 1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583

03-27-2014, 04:09 PM	#2
hotrod 80 mini truck racer Join Date: Aug 2006 Location: Baytown , texas Posts: 3,010	Re: Neutral safety / starter relays The solinoid can be 40-50 amps at the point the key hits . The Ford relay can handle this inrush . The small black relays cant over time . You use the Ford relay to fire the chevy solinoid . Mopar also has something like this __________________ 1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583



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