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Thread: Effect of New Exhaust System

  1. #1

    Question Effect of New Exhaust System

    I'm completely satisfied with my Sniper. It's on my SBC powered '65 Corvette with side pipes. If I go to a larger diameter exhaust (1-7/8" to 2-1/2"), will the Sniper Learn by itself, or will I have to start over?

  2. #2

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    It won't change much. If you really want to know then Transfer Learning To Base and start over with a clean Learn Table. Watch to see what happens.

  3. #3
    Join Date
    Dec 2009
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    Quote Originally Posted by tom8034 View Post
    ...will the Sniper Learn by itself, or will I have to start over?
    By default, the Sniper EFI is in a constant state of Learning (if you're Config File is still programmed as such).
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 11.8:1 comp, TFS R-Series FTI ported intake, BBK 80mm TB, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 MT tires.

  4. #4

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    Quote Originally Posted by AndyF View Post
    It won't change much. If you really want to know then Transfer Learning To Base and start over with a clean Learn Table. Watch to see what happens.
    This^^. I'd actually enjoy seeing the Learn Table after an exhaust change. Given weather variables, this would still truly show how an exhaust change can increase or decrease fuel and power.

  5. #5

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    I Transfer Learning To Base and clear the Learn Table all the time so I can see what happens with changes. Even something as simple as changing the timing, and certainly when changing intake manifolds or camshafts or something like that. Lots of people just let the Sniper tune itself and never check on it, but I'll Transfer Learning To Base after every single dyno pull just so I can see what the Learn Table is doing.

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