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04-04-2008, 06:41 AM
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#1
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2005
Location: s/w az
Posts: 440
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has anybody tried one on the 8.1? if so what was the result? thanks dave
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2007 NRV DOLPHIN LX 6342
WORKHORSE W-22
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04-04-2008, 06:41 AM
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#2
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2005
Location: s/w az
Posts: 440
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has anybody tried one on the 8.1? if so what was the result? thanks dave
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2007 NRV DOLPHIN LX 6342
WORKHORSE W-22
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04-04-2008, 09:48 AM
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#3
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Senior Member
Workhorse Chassis Owner
Join Date: Jul 2005
Location: USA
Posts: 741
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Don't waste your money. They're all gimmicks!!
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TandW
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04-04-2008, 06:07 PM
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#4
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Senior Member
Join Date: Aug 2002
Location: Little Valley, NY (Snow Country)
Posts: 147
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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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04-05-2008, 03:38 AM
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#5
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Senior Member
Appalachian Campers Pond Piggies Club Winnebago Owners Club Mid Atlantic Campers
Join Date: Dec 2002
Location: Sarver, PA/Crystal River, FL/Hawthorn, PA
Posts: 3,779
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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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Sarver, PA/Crystal River, FL/Hawthorn, PA · FMCA 335149 · W3TLN 2005 Suncruiser 38R · W24, no chassis mods needed · 2012 Honda Accord SE · 2008 Honda Odyssey EX-L
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04-05-2008, 04:12 AM
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#6
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iRV2 Marketing
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 20,574
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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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03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Allison UP Grade Brake, S&B CAI, Taylor Extremes, SGII-X Gauge
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
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04-05-2008, 04:44 AM
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#7
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Senior Member
Workhorse Chassis Owner
Join Date: Sep 2007
Location: st.charles mo.
Posts: 564
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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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