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07-22-2007, 02:16 PM #1
- Join Date
- Oct 2005
- Location
- Vicksburg. Ms.
- Posts
- 461
pewter- 99 Trans Am
How long can you run without a tune after header install?
Want to get long tubes,but I live a good ways from the nearest tuner, about 200 miles. just how long can I go without a tune even if the car runs rich?
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07-22-2007, 02:34 PM #2
- Join Date
- Aug 2005
- Location
- Thornton, CO
- Posts
- 23,773
Red Tint Jewelcoat- 2008 Trailblazer SS
How ever long the car runs.
Tune isn't a need after LT's. Just something that would maximize the mod.
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07-22-2007, 02:44 PM #3
- Join Date
- Mar 2007
- Location
- Omar's Tittie Taverna & Grill, Deh Rawod
- Posts
- 1,446
18D Cock Diesel- 1999 Z28; 98 SS #2043 RIP
I got all my mods done first before I got it tuned. The car ran fine but not nearly as well as it could.
"I am the executioner. When a crime is committed and the exalted state does not take vengeance nor move to punish, then comes time for the executioner to declare himself. I have waited long enough. The criminals are hereby sentenced to death. By fire. By earth. By water."
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07-27-2007, 06:34 PM #4
- Join Date
- Jun 2007
- Location
- Hoyt Kansas
- Posts
- 17
black- 1969 camaro
GM pcms have a beautifull thing called fuel trim: This is a correction factor between what the MAF sensor says is necessary and the actual oxygen level at the O2 sensors, the headers will cause a shift in the efficiency of the motor but with the exception of first start up , the pcm will over timecorrect any(within reason) deviation. I have gone as far as to leave a large vacuum line off and watched the fuel trims correct up to %50 and had a vehicle still run reasonably well.
It wont run perfect mindyou but you wont damage anything.
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