Coil upgrade?
Thread Starter
Burning Brakes
Joined: Sep 2011
Posts: 764
Likes: 19
From: odessa FL
Coil upgrade?
With 107K on them and increasing the boost level, are there any upgrades for coils? Are there any benifits to truck coils? The MSD coils seem to get a bad rap, but have always had good results with their products. Anyone done a comparison?
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
From what I hear, it really doesn't get much better than the OEM setup. The coils are powerful and each cylinder has one directly to it. They fire so fast and accurate, you can get any tuning you need done with them. I dont think its worth messing with. Besides, the spark plug gap is still going to be jumped with the same amount of current (which the factory coils are beyond capable of providing). So going to a higher output coil really wont do anything.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
ABSOLUTELY CORRECT. Nothing in the primary or secondary coil/plug or plug wire area will add power.
OEM is all you need!
However,,,,, you should make sure that you have proper battery voltage supplying the coils and injectors as the ignition switch supply can provide less than necessary voltage if the switch starts to fail.
Bill
OEM is all you need!
However,,,,, you should make sure that you have proper battery voltage supplying the coils and injectors as the ignition switch supply can provide less than necessary voltage if the switch starts to fail.
Bill
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
ABSOLUTELY CORRECT. Nothing in the primary or secondary coil/plug or plug wire area will add power.
OEM is all you need!
However,,,,, you should make sure that you have proper battery voltage supplying the coils and injectors as the ignition switch supply can provide less than necessary voltage if the switch starts to fail.
Bill
OEM is all you need!
However,,,,, you should make sure that you have proper battery voltage supplying the coils and injectors as the ignition switch supply can provide less than necessary voltage if the switch starts to fail.
Bill
Do NOT buy into MSD's hype about their LS coils! Do NOT buy them!
The OEM coils provide plenty of juice.
Last edited by LoneStarFRC; Jul 20, 2013 at 01:15 PM. Reason: typos!
Pro
Joined: Jun 2012
Posts: 633
Likes: 0
From: Van Buren Arkansas
The only coils I'd swap for is the truck coils only if I was getting rid of my fuel rail covers just for aesthetic reasons, but since I'm not the stockers work just fine like everyone else stated.
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
People (Me included) running 450 -500 RWHP do so on stock coils without issue. I'm at 60,000 miles.
BC
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I just realized... Your stock nasty OEM coils are BAD!!!!
Get eight new ones and send me the old ones. I like old parts. I will pay the shipping.
LOL
Get eight new ones and send me the old ones. I like old parts. I will pay the shipping.
LOL
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I'll even post a step-by-step installation complete with pictures.
Pro
Joined: Mar 2004
Posts: 653
Likes: 0
I've helped two guys diagnose engine misfires involving MSD ignition coils, plus my own experience on my old TPI car where the MSD coil was arcing through its failed insulation after less than 10K miles service.
I'm not saying all aftermarket parts are bad, just that MSD coils have a well-earned bad rap.
Last edited by crainholio; Jul 21, 2013 at 08:56 PM.
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
There's a big difference between GM & Delphi testing components to 100K miles in all weather conditions, versus aftermarket companies knocking off their design and "improving" it.
I've helped two guys diagnose engine misfires involving MSD ignition coils, plus my own experience on my old TPI car where the MSD coil was arcing through its failed insulation after less than 10K miles service.
I'm not saying all aftermarket parts are bad, just that MSD coils have a well-earned bad rap.
I've helped two guys diagnose engine misfires involving MSD ignition coils, plus my own experience on my old TPI car where the MSD coil was arcing through its failed insulation after less than 10K miles service.
I'm not saying all aftermarket parts are bad, just that MSD coils have a well-earned bad rap.
Good to know if I ever have to replace a coil...
Toque
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I'm sure that the MSD coils do work. BUT,, for our secondary spark needs, OEM works excellent.
I also know that, MSD draws more primary current at full load and our puny 12 VDC supply and ground wires do not adequately support those needs.
If you rewired the power and ground circuits, they may work better but,, thats just an assumption..
Why spend the extra cash on something that really doesn't need any up grading??? Spend it on something that really needs better parts.
Bill
I also know that, MSD draws more primary current at full load and our puny 12 VDC supply and ground wires do not adequately support those needs.
If you rewired the power and ground circuits, they may work better but,, thats just an assumption..
Why spend the extra cash on something that really doesn't need any up grading??? Spend it on something that really needs better parts.
Bill