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Old 04-04-2008, 07:41 AM   #1
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has anybody tried one on the 8.1? if so what was the result? thanks dave
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Old 04-04-2008, 07:41 AM   #2
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has anybody tried one on the 8.1? if so what was the result? thanks dave
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Old 04-04-2008, 10:48 AM   #3
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Don't waste your money. They're all gimmicks!!
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Old 04-04-2008, 07:07 PM   #4
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Some will give you a little more hp and some will help out the mpg. Not a lot, but just a little. Depends on how their spec'ed. My engine guy who builds up big block engines says their not gimmicks.
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Old 04-05-2008, 04:38 AM   #5
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My 8.1 uses a "Sequential Port Fuel Injection system (SPFI). SPFI is an extremely precise, high-pressure fuel delivery system that enables the engine to achieve its maximum horsepower and torque, without sacrifice in economy. The computer-controlled system uses individual injectors in the intake manifold for each cylinder to maximize its precision."

Is Sequential Port Fuel Injection the same as Throttle Body Fuel Injection???

-Tom
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Old 04-05-2008, 05:12 AM   #6
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by TandW:
Don't waste your money. They're all gimmicks!! </div></BLOCKQUOTE> Roger That!
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Old 04-05-2008, 05:44 AM   #7
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Tom N:
My 8.1 uses a "Sequential Port Fuel Injection system (SPFI). SPFI is an extremely precise, high-pressure fuel delivery system that enables the engine to achieve its maximum horsepower and torque, without sacrifice in economy. The computer-controlled system uses individual injectors in the intake manifold for each cylinder to maximize its precision."

Is Sequential Port Fuel Injection the same as Throttle Body Fuel Injection???

-Tom </div></BLOCKQUOTE>Two compleatly differant systems.
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