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poppping noise at idle #680446 04/26/10 03:52 AM 04/26/10 03:52 AM
Joined: Jun 2009 Posts: 146 Queensland,Australia T T-bar OP member
T-bar OP member T Joined: Jun 2009 Posts: 146 Queensland,Australia	Hello everyone, got my first mopar took me ages to find want i wanted and now i got it. My question is at idle there seems to be a popping noise out the exhaust. It's dumped before the diff with 3'' pipes and ultraflow mufflers. The motor is 440 stroked & bored to 496 10.5 comp elderbrock 88cc open chamber heads solid cam lift int.565 dur.274@.050 114 Lc exh.565 dur.274@.050 cam degreed in @ -3.0 920 cfm holley Elderbrock torker intake I haven't driven it very far but when you bring the revs up the popping begins to disappear, any thoughts or suggestions is greatly appreciated

Re: poppping noise at idle [Re: T-bar] #680447 04/26/10 09:07 AM 04/26/10 09:07 AM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	you retarded the cam 3 degree so it's in at 117?? that's a big cam they like lots of ignition advance at idle.

Re: poppping noise at idle [Re: T-bar] #680448 04/26/10 10:14 AM 04/26/10 10:14 AM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: any thoughts or suggestions "rotor phasing". Drill a 1/2" hole in the top flat of the dist cap about 2/3 of the way between the center and the #1 terminal and freeze the rotor w your timing light at idle and check rotor phasing. You sure picked a monster for your 1st one live every 24 hour block of time like it's your last day on earth

Re: poppping noise at idle [Re: RapidRobert] #680449 04/26/10 02:59 PM 04/26/10 02:59 PM
Joined: Jun 2009 Posts: 146 Queensland,Australia T T-bar OP member
T-bar OP member T Joined: Jun 2009 Posts: 146 Queensland,Australia	Thanks for the replies, haven't even had time to check the timing yet. The engine info was on the builders sheet the previous owner gave me so i hope it's allright. I thought i may as well get a good car first time around.

Re: poppping noise at idle [Re: T-bar] #680450 04/26/10 03:14 PM 04/26/10 03:14 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	Is it possible to get a video or a recording? Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: poppping noise at idle [Re: HealthServices] #680451 04/26/10 03:19 PM 04/26/10 03:19 PM
Joined: Jun 2009 Posts: 146 Queensland,Australia T T-bar OP member
T-bar OP member T Joined: Jun 2009 Posts: 146 Queensland,Australia	I would try a video but i'm heading out of town for work for about 2 weeks so i'll have to wait until then. What would the ideal timing be? We have 98 octane gas here.

Re: poppping noise at idle [Re: T-bar] #680452 04/26/10 03:57 PM 04/26/10 03:57 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	with that cam 38 to 40 in as soon as possible. cold with big cams like that they often fire some in the headers especially with mufflers on. more timing will help I think. warm they always clear up.

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