Coil question
Thread Starter
|
Senior User
Joined: Jan 2014
Posts: 101
Likes: 0
Coil question
Looking for a new coil. I saw the MSD coil and am wondering if there's any improvement running it but still having the stock ignition module. Is there a performance ignition module available? Or should I just use the stock cheapo coil? Trucks a 93 f350 460 5 speed.
Logistics Pro
Joined: Mar 2005
Posts: 4,698
Likes: 47
From: Mexico, Missouri
I've had 2 fail at 2 different times on 2 different truck's.
My 22 year old coil does wonders! Just buy another Motorcraft coil if your really need one.
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
A stock automotive ignition coil can generate an output voltage on the order of 30,000 volts. This is a sufficient voltage to produce arcs which jump an air gap of an inch or more.
So the stock coil has more than enough voltage to jump the gap in your spark plugs. So no after market coil can not give any more performance unless you have a non stock very high compression engine.
Some say you can improve some by advancing the timing two degrees but you then run the risk of spark knock.
Thread Starter
|
Senior User
Joined: Jan 2014
Posts: 101
Likes: 0
Yeah I tried advancing the timing a hair awhile back. It was fine around town and on cooler days, but out on the highway if I got into it it'd ping. Didn't really gain anything noticeably with it advanced anyway. The exhaust has just a little bit of a rich odor to it when idling, was hoping to get it cleaned up. All emission system working, and it's in tip top shape with low miles. Sometimes that's just the way it is.
Lead Driver
Joined: Feb 2002
Posts: 7,952
Likes: 589
From: Greater Austin, Texas
If you're gonna jack up the timing, you also need to run a cooler thermostat so you stave of the pinging.
Trending Topics
Thread Starter
|
Senior User
Joined: Jan 2014
Posts: 101
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
The plugs only draw what they need. So a "40,000 volt" coil is BS, in a way. Sure, it's capable of providing 40k volts, but this won't happen. Typically about 10k or so to fire plugs. 20k volt coil is used for a reserve voltage. Higher compression, or old plugs, worn out wires, etc increase the voltage needed to fire. I'd be concerned with the quality moreso than the voltage rating. Lots of cheap **** being produced these days. Normally, with ignition parts, there really is a difference compared to aftermarket. Go with OEM Motorcraft for things like caps, wires, rotors, coils etc. At least this was true in the past.
Thread
Thread Starter
Forum
Replies
Last Post