popping exhaust

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Jan 14, 2008 | 10:59 AM

#11

kalli

6th Gear Member

Joined: Oct 2006

Posts: 6,417

From: Cork, Ireland

RE: popping exhaust

you say you adjusted the choke.
Did it happen before as well ?

Check if the choke plate is fully open (vertical) when the engine is warm. when the thing is closed it won't breathe.
Popping when decellerating is usually a sign of lean mixture. Do you get it while cruising, accellerating or when you release the throttle (decellerating) ?

Kalli

Jan 14, 2008 | 11:13 AM

#12

racin66coupe

5th Gear Member

Joined: Dec 2007

Posts: 3,485

From: NH

RE: popping exhaust

check to see if the plug wires are in the correct places as far as firing order to the distributer.the popping etc. happenedon my honda and it was exactly that not sure if it would be the same on a v8 though. dam ive had so many problems w/ that car...

Jan 14, 2008 | 12:21 PM

#13

Mustero

Joined: Jan 2008

Posts: 38

From:

RE: popping exhaust

Ahh yes,The dredded points...So often the carburator is blamed for bad points or dwell way out of specs.Glad someone mensioned them.If you are running points,GET RID OF THEM FAST!

Jan 14, 2008 | 05:57 PM

#14

ninteen66mustang

Thread Starter

3rd Gear Member

Joined: Dec 2007

Posts: 923

From: Colorado

RE: popping exhaust

Okay, so i keep hearing that I need to change to electronic ignition. Will do. What setup should I get? Summit has a kit for like 65 bucks but I just found this:

http://cgi.ebay.com/ebaymotors/FORD-...spagenameZWDVW

Should I go with the HEI or something else?

Jan 14, 2008 | 09:25 PM

#15

sanjosebass

1st Gear Member

Joined: Dec 2007

Posts: 79

From:

RE: popping exhaust

I just added the Pertronix Electronic Ignition (Ignitor) for a Ford V-8. It does not replace the dizzy, dizzy cap, or rotor. It just replaces the points and condenser. Takes about 3 minutes to install.

I paid $79.95 my local auto store, in stock. You can also run it with their Flame Thrower coil but I haven't really looked into that part....

Jan 22, 2008 | 08:34 PM

#16

jawilla

Joined: Jan 2008

Posts: 17

From:

RE: popping exhaust

Alright fellas I've figured it out. 68 coupe with 5.0 and comp 274 cam etc etc. Anyway I had the same problem, it woiuld pop under load conditions but not in neutral or park. I have had a well respected 5.0 guy out here take a look at it and he said it was all in tune and running fine. we threw it on the dyno and it ran fine not lean or rich. i floored it and he heard the popping. IF YOU ARE LIKE ME AND DO ALL THESE MODIFICATIONS, NEW CAM HIGH END CARB, FUEL PUMP HEADS PISTONS ETC.ETC YOU HAVE TO GET AN MSD BOX!!!!!!!!!!!!!!!

THAT WAS MY PROBLEM THE WHOLE TIME. I WAS RUNNING A "STOCK" DISTRIBUTOR WITH THE PERTRONIX BOX AND THATS WHAT CAUSED THE POPPING. THE MSD SYSTEM CORRECTS ALL OF THAT THANKS A MILLION