coil wire through firewall ?'s

rod · 01-10-2010, 10:36 PM

my MSD and coil are inside under the dash. the coil wire goes through a 1" rubber grommet. i have one of the MSD coil wire connectors, but never have used it.
so the questions are:
1 does it really make any difference?
2 should i use the two ended connector?

thanks rod

Jim Bailey · 01-10-2010, 11:33 PM

Rod, don't use the connector. One coil wire only , as short as possible. Grommet through the firewall. And change the wire often. JB

Philip Saran · 01-11-2010, 01:47 AM

Quote:

Originally Posted by Jim Bailey

Rod, don't use the connector. One coil wire only , as short as possible. Grommet through the firewall. And change the wire often. JB

Jim, so are you saying on my BB Duster I would be better off keeping the MSD
coil where it is on the right inner fender with a short coil wire.
Instead of inside under the dash with the MDS box?

njk53 · 01-11-2010, 09:33 PM

Place the coil under the dash as close to the distributor as possible to keep the length of the coil wire as short as possible. I use the MSD bulk head connector that utilizes 2 short wires. Not sure if there is an advantage to having 1 wire versus 2. That would be a good question for the MSD Tech Dept. There are at least two advantages to having the coil out of the engine compartment. 1) The decrease in heat will make the coil last longer and 2) Coil will perform better over time due to less internal degredation caused by heat.

Ed Wright · 01-12-2010, 10:33 AM

Quote:

Originally Posted by Jim Bailey

Rod, don't use the connector. One coil wire only , as short as possible. Grommet through the firewall. And change the wire often. JB

There ya go.

SCOTT SST2871 · 01-12-2010, 12:25 PM

I have the firewall connector on my car with 2 short wires(total length about 10 inches)been that way for 15 years,never had a problem.coil and msd are 21 years old......and yes keep the wires fresh,just my take
scott fifield

01-10-2010, 10:36 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 313 Likes: 0 Liked 20 Times in 15 Posts	coil wire through firewall ?'s my MSD and coil are inside under the dash. the coil wire goes through a 1" rubber grommet. i have one of the MSD coil wire connectors, but never have used it. so the questions are: 1 does it really make any difference? 2 should i use the two ended connector? thanks rod

01-10-2010, 11:33 PM	#2
Jim Bailey Senior Member Join Date: Aug 2004 Posts: 674 Likes: 15 Liked 564 Times in 94 Posts	Re: coil wire through firewall ?'s Rod, don't use the connector. One coil wire only , as short as possible. Grommet through the firewall. And change the wire often. JB

01-11-2010, 09:33 PM	#4
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: coil wire through firewall ?'s Place the coil under the dash as close to the distributor as possible to keep the length of the coil wire as short as possible. I use the MSD bulk head connector that utilizes 2 short wires. Not sure if there is an advantage to having 1 wire versus 2. That would be a good question for the MSD Tech Dept. There are at least two advantages to having the coil out of the engine compartment. 1) The decrease in heat will make the coil last longer and 2) Coil will perform better over time due to less internal degredation caused by heat. __________________ Nelson Kowal Stock 345

01-12-2010, 12:25 PM	#6
SCOTT SST2871 Member Join Date: Oct 2008 Location: PORT ST JOHN FLORIDA Posts: 226 Likes: 0 Liked 0 Times in 0 Posts	Re: coil wire through firewall ?'s I have the firewall connector on my car with 2 short wires(total length about 10 inches)been that way for 15 years,never had a problem.coil and msd are 21 years old......and yes keep the wires fresh,just my take scott fifield