**VID** LT1 backfire at idle HELP!!
Thread Starter
TECH Apprentice
Joined: Feb 2011
Posts: 305
Likes: 0
From: Goldsboro NC
**VID** LT1 backfire at idle HELP!! Alright I've been battling this backfire ever since the install of my long tube headers. I've got band clamps on it except for where the y pipe meets the exhaust, which is a u bolt. None of the wires are touching the headers, and the plugs are all tight. I do understand those could still be an issue. The clearance everywhere is good, the exhaust isn't hitting anything.
What is causing this bang?
Anyone have an idea?
EDIT: sorry for the crappy vid
What is causing this bang?
Anyone have an idea?
EDIT: sorry for the crappy vid
When I put my LT's on I burnt a few wires. The one that gave me the most trouble was the 2nd plug on passenger side. It was burnt under the header so I couldn't see it till i got under the car in the pitch black
You have crossed a plug wire or have a bad wire or plug.
http://shbox.com/1/opti.jpg
http://shbox.com/1/opti.jpg
Trending Topics
Definitely plug/wire related. If you have triple checked that the plug wires are correct and the boots are tight, look under the hood with the engine running in the dark. Any spark jumping that isn't a blue coronal glow is not normal.
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 Thread Starter
TECH Apprentice
Joined: Feb 2011
Posts: 305
Likes: 0
From: Goldsboro NC
Alright, that was my original thought as well. I need to get this car going so I need to get wires and plugs from the local parts store (Advance and Autozone are down the street). ANy suggestions on wires and plugs? Do I need to get special boots for the optispark end of the wires?
Thanks for the help guys
Thanks for the help guys
Thread Starter
TECH Apprentice
Joined: Feb 2011
Posts: 305
Likes: 0
From: Goldsboro NC
The wires are kind of old, and I did have plugs in while installing so I'll change the plugs and wires just to be safe. I want to go over the valve covers, would I be able to get the optispark boots for wires that you have to cut?
Summit sells them you need the Taylor standard cut to fit 90 degree sbc wires, opti end kit, dei heat shield boots, and ididit wire looms for centerbolt valve covers. Get a can of spray silicone grease and the Taylor plug wire tool. I don't have the part numbers in from of me or I would give them to you. It is cheaper to do the wires like that instead of ordering the lt1 kit. I have done a lot of these for people and myself.
I run DEI sleeves on 3 and 6 (Pacesetter headers with AIR fittings 72C2235).
