Cascade Crew

blue89 · Posted: Fri Sep 25, 2009 2:13 pm Post subject: Decel backfire

When I shut the throttle after a hard wot pull the exhaust backfires loudly. During normal engine braking it's loud and poppy but doesn't backfire. Is there a way to fix this? I'm not sure where to start on this.

aaron_sK · Posted: Fri Sep 25, 2009 3:51 pm Post subject:

Any exhaust leaks?

Twilightoptics · Posted: Fri Sep 25, 2009 5:07 pm Post subject:

More timing, lean out the carb.

Carbs don't have "Decel fuel cutoff" lol

blue89 · Posted: Mon Sep 28, 2009 6:27 am Post subject:

I do have exhaust leaks. I still haven't put in the gaskets anywhere Embarassed

I'll put those on and see if it helps. My o2 sensor quit working so I'm not sure where my A/F is at WOT. Guess I better learn how to read spark plugs?

Dewey316 · Posted: Mon Sep 28, 2009 6:32 am Post subject:

fixing the leaks should help. THe extra 02 in the system, combined with unburt fuel will certainly pop.

I say go with it, real cars shoot 3' flames out the exaust on the over-run. Wink

kutison · Posted: Sat Oct 03, 2009 2:48 am Post subject:

I hear the popping when letting off at high RPM's, and I have an exaust leak too. so I'm glad I read this one