Spark gap

Red5Ltr · 03-08-2004, 08:49 AM

I bought a set of Accel U-grove heard plugs to put in my 93' 5.0 and they recommend .052 - .054 gap. Is this the normal or can you gap smaller. I believe that a MSD ignition would allow me to gap larger and if I put a blower in I would gap smaller. Are these good plugs or are there better. I had a set of BOSCH Plat's and they ran really good, but I heard good things about the ACCEL.

Your opinion?

Thank you,

John

Dark_5.0 · 03-08-2004, 01:24 PM

I am running the accel U-groove plugs with a Crane fireball HI-6 ignition and I have them gapped at .060.........If I had a power adder I would gap them to .045.

The seem to work as good as any other plug I have tried and trust me I have tried them all.

Red5Ltr · 03-08-2004, 01:54 PM

I bought my Mustang last year from a guy and he had the identical ignition, but he didn't include any instructions on how to hook it up. Do you know where I can go to get them. He also has a Screamin' Demon coil, should I leave it in or replace it with a matching manufacturer?

John

Dark_5.0 · 03-08-2004, 04:35 PM

What ever brand the ignition is go to there web site and they will have detailed instructions.

RoadWarrior · 03-09-2004, 11:08 AM

Ive actually told to stay away from the accel plugs. I had actually got a brand new set for my car about a month ago and i was running them but when i couldnt figure out why it was running lousy they said that one of the plugs was dead. When you get good ones they are supposed to be good plugs but its hard to find a good batch. But personally i'll be sticking to my NGK's from now on.

PWR_RYD93 · 03-09-2004, 12:21 PM

I have never had a product from Accel that I liked! JMO.

You can't go wrong with Autolite or Motorcraft plugs. I've never gotten a bad plug from either company. And they're cheap

With your mods, gap the plugs to factory specs, ~0.054".

GhettoPop · 03-09-2004, 04:11 PM

so does an MSD box allow u to gap to .060? Some say no, some say you wont take advantage of the MSD ignition until u increase gap. whats right?

PWR_RYD93 · 03-09-2004, 04:24 PM

From what I've seen and read, yes you can increase the gap to 0.060" with an MSD box.

But I can't really see how much power would be gained going from stock 0.054" to 0.060". The factory gap is already pretty big. Maybe if you switched from an old points type ignition system that only ran a 0.032" plug gap....

03-08-2004, 08:49 AM	#1
Red5Ltr Registered Member Join Date: Mar 2004 Location: Sandusky, Ohio Posts: 50	Spark gap I bought a set of Accel U-grove heard plugs to put in my 93' 5.0 and they recommend .052 - .054 gap. Is this the normal or can you gap smaller. I believe that a MSD ignition would allow me to gap larger and if I put a blower in I would gap smaller. Are these good plugs or are there better. I had a set of BOSCH Plat's and they ran really good, but I heard good things about the ACCEL. Your opinion? Thank you, John __________________ 93' Mustang w/ a stock 302 block, E303 cam, 3.73 gears, Pulleys, Edelbrock Performer upper and lower, Edlebrock 70mm throttle body, gt40 heads 1.94 intake, 1.60 exhaust, 1.6 roller rockers, American Thunder exhaust, BBK cold air intake, BBK off road H-pipe, BBK 1-5/8 shorties, AOD with shift kit and 15* timing.

03-08-2004, 01:24 PM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I am running the accel U-groove plugs with a Crane fireball HI-6 ignition and I have them gapped at .060.........If I had a power adder I would gap them to .045. The seem to work as good as any other plug I have tried and trust me I have tried them all. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

03-08-2004, 01:54 PM	#3
Red5Ltr Registered Member Join Date: Mar 2004 Location: Sandusky, Ohio Posts: 50	I bought my Mustang last year from a guy and he had the identical ignition, but he didn't include any instructions on how to hook it up. Do you know where I can go to get them. He also has a Screamin' Demon coil, should I leave it in or replace it with a matching manufacturer? John __________________ 93' Mustang w/ a stock 302 block, E303 cam, 3.73 gears, Pulleys, Edelbrock Performer upper and lower, Edlebrock 70mm throttle body, gt40 heads 1.94 intake, 1.60 exhaust, 1.6 roller rockers, American Thunder exhaust, BBK cold air intake, BBK off road H-pipe, BBK 1-5/8 shorties, AOD with shift kit and 15* timing.

03-08-2004, 04:35 PM	#4
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	What ever brand the ignition is go to there web site and they will have detailed instructions. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

03-09-2004, 11:08 AM	#5
RoadWarrior Registered Member Join Date: Apr 2000 Location: Edmonton,Alberta,Canada Posts: 317	Ive actually told to stay away from the accel plugs. I had actually got a brand new set for my car about a month ago and i was running them but when i couldnt figure out why it was running lousy they said that one of the plugs was dead. When you get good ones they are supposed to be good plugs but its hard to find a good batch. But personally i'll be sticking to my NGK's from now on. __________________ Fast Company

03-09-2004, 12:21 PM	#6
PWR_RYD93 Registered Member Join Date: Sep 1998 Location: IL Posts: 1,155	I have never had a product from Accel that I liked! JMO. You can't go wrong with Autolite or Motorcraft plugs. I've never gotten a bad plug from either company. And they're cheap With your mods, gap the plugs to factory specs, ~0.054". __________________ Craig Supercharged 93 GT "I drive way too fast to worry about cholesterol!" Then I went to the doctor.... whoa 312! Hello Lipitor

03-09-2004, 04:11 PM	#7
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	so does an MSD box allow u to gap to .060? Some say no, some say you wont take advantage of the MSD ignition until u increase gap. whats right? __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

03-09-2004, 04:24 PM	#8
PWR_RYD93 Registered Member Join Date: Sep 1998 Location: IL Posts: 1,155	From what I've seen and read, yes you can increase the gap to 0.060" with an MSD box. But I can't really see how much power would be gained going from stock 0.054" to 0.060". The factory gap is already pretty big. Maybe if you switched from an old points type ignition system that only ran a 0.032" plug gap.... __________________ Craig Supercharged 93 GT "I drive way too fast to worry about cholesterol!" Then I went to the doctor.... whoa 312! Hello Lipitor

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