Are Accel plugs and wires junk?
Senior Member
Joined: Nov 2001
Posts: 692
Likes: 1
From: Orlando,Fl. USA
Car: 1990 GTA
Engine: 5.7 T.P.I.
Transmission: 700r4
Axle/Gears: 3:23
I have only used Accel plugs once (u-groove) was'nt impressed. I now have Accel 8mm wires and Accel cap & rotor with AC Delco plugs. I am about to install headers,cam and AFPR , I am going to put MSD wires and cap & rotor on. Don't know if it's a mind over matter thing , but the Accel is so much cheaper it makes me think maybe they are not as good
I have straight plug boots and have heard that I have to change to 90 degree boots for the headers.That is why I am changing the wires, other than that I have no problems with them. And I always like to keep a fresh cap & rotor on my car because they are cheap and easy to change and make a big difference in how it runs. Like I said, I have always heard you get what you pay for and the Accel stuff is like half the price of the MSD,but once again I have had no problems with the Accel stuff.Cap & rotor are like $20 and 8mm wires are about $30 at Discount Auto Parts.
I have straight plug boots and have heard that I have to change to 90 degree boots for the headers.That is why I am changing the wires, other than that I have no problems with them. And I always like to keep a fresh cap & rotor on my car because they are cheap and easy to change and make a big difference in how it runs. Like I said, I have always heard you get what you pay for and the Accel stuff is like half the price of the MSD,but once again I have had no problems with the Accel stuff.Cap & rotor are like $20 and 8mm wires are about $30 at Discount Auto Parts. Member
Joined: Mar 2002
Posts: 436
Likes: 2
From: South Lyon, (SE) Michigan
Car: 1985 Trans Am
Engine: LB9 5.0 TPI
Transmission: 700R4
Axle/Gears: 3.23
I recently bought a pair of Taylor 8mm wires from Summit & would highly recommend them.....good price, perfect fit & very easy to install. Just my 2 cents.
Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
The Accel shorty header plugs are junk. Me and others on here, have had a lot of problems with the tips coming loose.
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Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I'm another guy that had trouble with the accel plugs, the brass terminals that the plug wires would clip onto would loosen up, and cause a misfire. No matter how hard I tightened them, they'd always loosen up. I even brought 'em down to the bench, put them in a vise, and cranked 'em on- thought I'd break the plug. A week later they were all loose again... into the garbage they went.
I run MSD 8.5mm wires, I bought my dad a set of Accel 8mm "super sport" wires for his truck. They've been on there almost two years, and I guess they're fine... he just passed emissions with the truck so they can't be that bad.
I run MSD 8.5mm wires, I bought my dad a set of Accel 8mm "super sport" wires for his truck. They've been on there almost two years, and I guess they're fine... he just passed emissions with the truck so they can't be that bad.
I put the accel 8.8mm plug wires on about a month ago, so far no problems. I went with the accel wires because they are almost half the price of the MSD wires.
I also have had the accel header plugs and the terminals do come loose.
I also have had the accel header plugs and the terminals do come loose.
Supreme Member

Joined: Jul 2001
Posts: 3,974
Likes: 0
From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
Ive never had a problem with the terminals comming loose but I did test the spark plugs engergy output and they did very poorly.
I compared the Accels to regular old cheap 99c Bosh plugs and the Bosh plugs held spark with 5psi more air flow through the machine.
I compared the Accels to regular old cheap 99c Bosh plugs and the Bosh plugs held spark with 5psi more air flow through the machine.
At first I thought they were the sh*t. THen I started reading these post, and checked mine out. My tips are unscrewed on mine too. I tried tightening them, and they came right back loose. Wasn't really sure that them being loose would cause a misfire or not, since they were still making contact. But you guys say they do, so I went out tonight and bought a set of ac delco's. I have heard all good things about these. Maybe these will run a little better.
Supreme Member

Joined: Mar 2001
Posts: 5,144
Likes: 2
From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
i have had no problems with my accel wires. my friend has run them for years w/o any problems
What do you guys gap your plugs at
I bought a set of ac delco's I am putting in today. They say to gap them at .45, but I have the accel super coil so I was thinking I would gap them at .50. What do you guys think??? What do you gap yours at??? My car and engine is in my sig.
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litemupp
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Aug 23, 2015 10:09 PM





