"popping" at WOT
Thread Starter
Racer
Joined: Aug 2006
Posts: 290
Likes: 0
From: Saskatoon Saskatchewan
"popping" at WOT
Can anyone tell me the cause of a popping sound at WOT. Seems to always be when the engine warms up, but when it is cold I don't really ever punch it so I don't know. I have a Edelbrock 1406 w electric choke. The choke does turn off all the way when warm. I have also noticed the idle is a bit high even though the throttle is back as far as the carb will allow and frequently idles high when warm. Any help is greatly appreciated since I am new to tuning carbs.
Thanks
T
Thanks
T
Burning Brakes
Joined: May 2009
Posts: 1,232
Likes: 6
From: Tucson AZ
St. Jude Donor '12
If its a popping under the hood, and the idle is too fast, most likely timing too far advanced on the dist.
if is popping/cracking sound out of the tail pipes at WOT, then you are lean surging and may need to jet up the primaries/secondaries.
What does the exhaust smell like at idle? if you have the curb idle screw all the way out and it smells a bit rich, check that the secondary butterflies are closing enough, some carbs have an screw that will hold them slightly open.
Instructor
Joined: Sep 2006
Posts: 175
Likes: 11
From: Omaha ne
Can anyone tell me the cause of a popping sound at WOT. Seems to always be when the engine warms up, but when it is cold I don't really ever punch it so I don't know. I have a Edelbrock 1406 w electric choke. The choke does turn off all the way when warm. I have also noticed the idle is a bit high even though the throttle is back as far as the carb will allow and frequently idles high when warm. Any help is greatly appreciated since I am new to tuning carbs.
Thanks
T
Thanks
T
A worn cam lobe would be popping irregardless of engine temp. More info and we may be able to help
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette
Pouria Savadkouei
Drifting
Joined: Apr 2008
Posts: 1,540
Likes: 51
From: Lexington Park Maryland
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
how did you go taylor? was it timing. that would have been my guess. dizzy prob spun about 10 degrees from hard launches. when it advances more then 10 you will get popping through the exhaust from start up and thats when you know you did a real good job laying rubber.
