Problem w/headers, pls help!
Problem w/headers, pls help! I just installed edelbrock shorty headers, and now it runs better than ever. The idle stabilized, engine starts are quicker, and it sounds and drives great....But when I put heavy pedal pressure on the gas, it will not accelerate or pick up rpms, and I hear popping sounds from the exhaust. I can only increase rpms to over 3000 by very gradually increasing gas pedal pressure. I have checked all my plugs/wires, 02 sensors, and replaced the fuel filter. What is going on here? I've got a BBK throttle body and SLP mass air flow sensor. Could all over this be conflicting?
Thanks
Thanks
If you didn't have these problems before the install YOU caused the problem. Headers, even shorties which don't give big power gains when compared to long tubes don't cause the problem you describe. The installer needs to go back over his work. He must have been in too big of a hurry.
On The Tree
Joined: Apr 2005
Posts: 144
Likes: 0
From: McKinney (Summer)/Stillwater (school)
Originally Posted by taintedmeat
Recheck your plugs and wires
yeah that really sounds like a plug/wire problem to me. But you said it idles smooth? Might as well check anyway.
Trending Topics
you could have a vacuum leak. Check all of your hoses. I did the same thing when I got in a hurry with my intake swap and felt pretty stupid after it was discovered that i had acidentally pulled some hoses loose.
Fig
Fig
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Guys,
I checked the plugs and found that 4 were cracked. Now it runs great! Thank you so much for your help. It was a simple fix, but i would have never thought of it. But heres my next question: Do I need to use the heat shields that go over the plug wire where it connects to the plug even if I have aftermarket plugs & wires?
I checked the plugs and found that 4 were cracked. Now it runs great! Thank you so much for your help. It was a simple fix, but i would have never thought of it. But heres my next question: Do I need to use the heat shields that go over the plug wire where it connects to the plug even if I have aftermarket plugs & wires?
Originally Posted by 916LS1
Guys,
I checked the plugs and found that 4 were cracked. Now it runs great! Thank you so much for your help. It was a simple fix, but i would have never thought of it. But heres my next question: Do I need to use the heat shields that go over the plug wire where it connects to the plug even if I have aftermarket plugs & wires?
I checked the plugs and found that 4 were cracked. Now it runs great! Thank you so much for your help. It was a simple fix, but i would have never thought of it. But heres my next question: Do I need to use the heat shields that go over the plug wire where it connects to the plug even if I have aftermarket plugs & wires?
The heat shields won't HURT, but they are not required. My MSD's sat on my header tubes for a long time with no problems. After it was cammed, I developed a few charred spots, so I put the heat shields on.
If you can re-position them so they don't touch at all, it's best. Try to rotate the part where it plugs onto the coil pack to where it causes the plug boot to sorta bend away from the primary tube.
If you can re-position them so they don't touch at all, it's best. Try to rotate the part where it plugs onto the coil pack to where it causes the plug boot to sorta bend away from the primary tube.
I did leave the plugs in when I changed the headers...definitally something I would NOT do again.
None of the plug wires are touching the headers, but I noticed that my ceramic shorties do get pretty damn hot, so i was a little concerned. I've only put about 100 miles on with the headers and no problems so far.
None of the plug wires are touching the headers, but I noticed that my ceramic shorties do get pretty damn hot, so i was a little concerned. I've only put about 100 miles on with the headers and no problems so far.
TECH Senior Member
iTrader: (1)
Joined: Apr 2005
Posts: 8,807
Likes: 0
From: Vancouver,[KITSILANO].B.C. Canada *WestCoast*
Originally Posted by 2K2WS6TA
I'd bet you have either a crack in the ceramic of the plug(s), or one (or more) of the plug wires isn't fully seated on the plug or coil
