What size injectors are you running right now? I wouldn't be surprised if you need larger injectors or a pressure increase with the headers now.
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Hmm. Nice! Hard to see whats going on as I don't own a DOHC from the pics. But sounds like they'll make a big improvement!sigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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nice run!!!!
To say you have long tube headers is a HUGE understatement. DAYUM!
Just a guess but based off what you have commented, you may be overfueling your engine. Be careful not to wash out your cylinders.
lean that puppy out on the idle some and maybe try going back to the stock MAF to see what you get.
just some suggestions. hard to tell without being there, looks like you have a code too. good place to start.The Official Rotating Mass Nazi
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The code is for an HO2S error. My narrowband O2 sensor isn't working at the monet, I have to try and fix that this week. It hasn't been a huge issue since all the tuning I've been doing has been with the Wideband O2. I think I'll have to go back to VE (MAF unplugged) tuning to get the idle dialed in, that worked last year. The big thing I've been trying to dial in is the MAF tuning so get the right numbers in the computer for airflow vs. Hz at rhe sensor. my WOT tuning is pretty dead nuts on 13.0:1 across the board +- .1 in somme of the cells. But with no NB O2 I have no fuel trim learning so the car is running off of MAF numbers only. I can't make the car idle with the correct MAF numbers in there because it just idles at 2000+ RPM, so I am having to use much lower than actual numbers to make it idle some what reasonably, but that only works with a warm engine. I'll get it sorted out this week.I may own a GTO now, but I'm still a 60V6er at heart.
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