Jacob ignition report at:
Posting Guru
Joined: Oct 1999
Posts: 1,188
Likes: 0
From: yes
Jacob ignition report at:
http://www.fordmuscle.com/archives/2001/02/jacobs/index.shtml
FORDMUSCLE magazine did a writeup on the Jacobs ignition in their 67 mustang and 5.0 mustang, I found it interesting they got a 20% improvement over stock and 1.5-2mpg increase over a MSD ignition in the 67, and the 5.0 went almost 2/10's of a second faster on it's ET's.
FORDMUSCLE magazine did a writeup on the Jacobs ignition in their 67 mustang and 5.0 mustang, I found it interesting they got a 20% improvement over stock and 1.5-2mpg increase over a MSD ignition in the 67, and the 5.0 went almost 2/10's of a second faster on it's ET's.
Cargo Master
Joined: Jul 2000
Posts: 2,281
Likes: 18
From: Northern California
Jacob ignition report at:
The article said they had trouble with the advance and they had to set base timming higher. Then they claim great performance and better MPG? I'd like to see the results after the unit is working properly. Nice to see they have a revlimiter built in, but their prices are still pretty high.
Junior User
Joined: Aug 2000
Posts: 59
Likes: 0
Jacob ignition report at:
Hello,
I read that article on the link provided. It sounded more like a ad for MSD than a write up of Jacobs. I have been contemplating the chnge from the original Duraspark II. Sounds as if performance is increased by using the MSD unit, as that was what they were originally running. Any differences were slight when changing to the Jacobs, however sounds like they had a time finding out why it acted that way and as a solution to run a Duraspark II as a slave to the Jacobs is ridiculous. I would have rather the Manufacturer recommend their distributor or a kit to swap the magnetic pickup out to one with a hotter signal.
Just my 2
HeavyMetal (Rod)
1977 F100 429CJ bored 30 over, Heads milled 30, edelbrock performer cam, intake, lifters, valve springs, Flat top forged pistons, polished and ported, Holley 750 Legacy, Hooker Super Comp. headers with dual Hooker Comp. exhaust and Hooker dual resonators, B&M C-6 racing tranny, with a TCI Breakaway 2600 flash stall converter, 9" rear with 2-72 gears.
I read that article on the link provided. It sounded more like a ad for MSD than a write up of Jacobs. I have been contemplating the chnge from the original Duraspark II. Sounds as if performance is increased by using the MSD unit, as that was what they were originally running. Any differences were slight when changing to the Jacobs, however sounds like they had a time finding out why it acted that way and as a solution to run a Duraspark II as a slave to the Jacobs is ridiculous. I would have rather the Manufacturer recommend their distributor or a kit to swap the magnetic pickup out to one with a hotter signal.
Just my 2
HeavyMetal (Rod)
1977 F100 429CJ bored 30 over, Heads milled 30, edelbrock performer cam, intake, lifters, valve springs, Flat top forged pistons, polished and ported, Holley 750 Legacy, Hooker Super Comp. headers with dual Hooker Comp. exhaust and Hooker dual resonators, B&M C-6 racing tranny, with a TCI Breakaway 2600 flash stall converter, 9" rear with 2-72 gears.
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
Jacob ignition report at:
I have Jacobs ignition on two of my trucks, both use the duraspark distributer, an LX101 trigger box from standard motors, and the Jacobs computer. A duraspark is the best distributer for your ford, there is no such animal as a hotter signal from a magnetic pickup. For a good healthy spark you must increase the current to the coil, which is what the jacobs brain box (and MSD, and Crane and everyone else) does. I am very happy with mine, one truck used to have TFI ignition and one had points. One has to remember that ignition, in and of itself, will not add horse power if you stock setup is adequate. Where the aftermarket ignition really shines is on a modified engine that the stock ignition is not strong enough for, and both of mine have been tweaked. DF
Trending Topics
Posting Guru
Joined: Aug 1999
Posts: 1,485
Likes: 3
Jacob ignition report at:
DF, I realize a modified engine would benefit more from an ignition upgrade, but Jacobs claims more power and economy with their systems. My results, no noticable power increase, and if anything WORSE mileage. Keep in mind, though, thats been my kind of luck with such things, money spent, no gains, maybe its me!
Nathan
Nathan
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
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
New User
Joined: Feb 2001
Posts: 10
Likes: 0
Jacob ignition report at:
I just put Jacob's mileage master on my 78 f150 and noticed a huge difference. It cut out the rough idle and cured a hesitation i had when I floored it. I also noticed more power, but I haven't had it long enough to check the mileage difference. I'll keep you posted
Thread
Thread Starter
Forum
Replies
Last Post
lanero
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
7
Sep 17, 2000 05:28 PM
