LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

lt1 backfiring

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Old Oct 19, 2008 | 04:26 PM
  #1  
89formulalt1's Avatar
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Car: 89 firebird formula
Engine: LT1
Transmission: T56
lt1 backfiring

Well I finally got it to run but but it is back firing and running like crap.I have all the vacuum lines hooked up except the fresh air for the optispark(waiting for the intake elbow from ebay).I also don't have either one of the o2 sensors in because there was no place for them in the headers so I am going to have them put into the exhaust(running dual from the headers).Would either of these cause the back fire?
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Old Oct 19, 2008 | 05:08 PM
  #2  
89formulalt1's Avatar
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Junior Member
 
Joined: Jan 2008
Posts: 21
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Car: 89 firebird formula
Engine: LT1
Transmission: T56
Re: lt1 backfiring

never mind it was just a loose wire!I would like to thank every one who helped and for all the posts that people wrote.I would have never got this done with out them.When I started this swap I had a hard time changing spark plugs.
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Old Oct 20, 2008 | 09:19 AM
  #3  
Firebat's Avatar
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Re: lt1 backfiring

I recommend putting the O2's in the headers. Summitracing.com sell's O2 bungs. You have to drill a hole for them(i think 5/8" or 3/4") and then weld them in.
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