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General Site Info => General Discussion => Topic started by: MrFiveOh on October 11, 2016, 02:50:08 pm

Title: Backfire at WOT
Post by: MrFiveOh on October 11, 2016, 02:50:08 pm
So this morning while headed to work "Smurf" was feeling quite chipper in this 50 degree Texas morning weather. Got up to 70 no issue, decided why not and went WOT. I noticed upon putting pedal to the metal there was pop/backfire from the exhaust and slight hesitation. It only did it when i went WOT, if i hold WOT its great, only upon initial WOT. Could this be a cold weather lean issue? never did it during warmer weather.  74 C10 Edelbrock 1406 SBC350

Thanks
Title: Re: Backfire at WOT
Post by: philo_beddoe on October 18, 2016, 05:31:48 pm
Mine had a small pop at the carb, advanced timing a little and now faster and smoother, no more pop, ever.
Title: Re: Backfire at WOT
Post by: MrFiveOh on October 18, 2016, 09:32:34 pm
Quote from: philo_beddoe on October 18, 2016, 05:31:48 pm
Mine had a small pop at the carb, advanced timing a little and now faster and smoother, no more pop, ever.
After talking to a couple of my club guys they are saying the secondaries on my carb are not opening properly. suggested i get a tune kit and rebuild it as well
Title: Re: Backfire at WOT
Post by: philo_beddoe on October 18, 2016, 10:12:50 pm
Very well then. My advice was from the guy who installed my engine. That may be it, but its good to get a couple opinions on this site.
Title: Re: Backfire at WOT
Post by: Irish_Alley on October 19, 2016, 07:56:41 am
ive noticed my mud truck will pop like crazy when its not advanced like 16°s or when theres holes in the exhaust
Title: Re: Backfire at WOT
Post by: MrFiveOh on October 19, 2016, 08:26:51 am
Quote from: philo_beddoe on October 18, 2016, 10:12:50 pm
Very well then. My advice was from the guy who installed my engine. That may be it, but its good to get a couple opinions on this site.

Of course, I am by no means disregarding your advise.
Title: Re: Backfire at WOT
Post by: gunrac on October 19, 2016, 11:58:28 am
may want to check your springs an weights  "Mechanical Advance" inside your distributor......make sure they are good an clean. they should snap crisp an freely, flipping them with your fingers.