Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

What causes a backfire?

Thread Tools
 
Search this Thread
 
Old 06-10-2006, 11:57 AM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (7)
 
SLPSS99's Avatar
 
Join Date: Jul 2005
Posts: 641
Likes: 0
Received 0 Likes on 0 Posts

Default What causes a backfire?

I just got my car tuned and it was fine the first few days but now if I give it a rev or just bring the rpm's up to 4,000 in gear and let off it backfires( or in other terms pops about 3 times) Any ideas?

Dan
Old 06-10-2006, 07:59 PM
  #2  
TECH Senior Member
iTrader: (14)
 
ArcticZ28's Avatar
 
Join Date: Jun 2004
Location: Alexandria, VA
Posts: 5,125
Likes: 0
Received 4 Likes on 4 Posts

Default

A backfire is caused when unburned fuel gets to the hot exhaust, causing it to combust there. As for what the exact cause is, I'd say it's almost certainly the tune.
Old 06-10-2006, 08:25 PM
  #3  
TECH Regular
iTrader: (14)
 
vodas00ss's Avatar
 
Join Date: Apr 2005
Location: okc, oklahoma
Posts: 400
Likes: 0
Received 0 Likes on 0 Posts

Default

Sometimes I like to downshift to where the the rpms are kinda high like 4k, then let it fall from there as I slow down, just so I can hear the exhaust...gets my rocks off...but sometimes it backfires and im pretty sure its from all the fuel loadin up then combusting as artic stated




All times are GMT -5. The time now is 06:42 PM.