10-20-2009, 02:18 PM | #85 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,274
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To answer several questions about Fuel Trims
Fuel Trims are a result of Mass air flow measuring error.
Goes like this (Short version) Mass Air Meter (MAF) and Intake Air Temp Sensor (IAT) in MAF Measure air flow in Grams Per second per cylinder, computer calculates how much fuel is to be sprayed in cylinder to achieve 14.7:1 A/F, then the Oxygen Sensors (O2) Read Air fuel Ratio (A/F) in the exhaust pipe before the cat, then Computer Trims Fuel + or - % to correct A/F error. So if Maf is incorrect in measuring actual air flow O2 pick up the slack and shows up as Fuel Trims. Moving, Rotating, chaning the size or shape of the pipes before or after the sensor will affect readings, this is why these manufactuerers have to work so hard to find the sweet spot for each system.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com Last edited by JANNETTYRACING; 10-20-2009 at 02:32 PM. |
10-20-2009, 02:31 PM | #86 |
Drives: Silverado Join Date: Jun 2009
Location: Chesterfield Va.
Posts: 57
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CAI website
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10-20-2009, 02:36 PM | #87 |
Don't Like it? Suggit.
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Right ownnnn
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10-20-2009, 02:36 PM | #88 |
Drives: aqua 2ss l99 Join Date: Jun 2009
Location: Edmonton
Posts: 1,215
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at least you can use error percentage to tune your MAF, which I think is key to the start of a great tune.
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10-20-2009, 02:45 PM | #89 |
To me... cold air inductions seems to be the best performer with the easiest installation. However, the new era offers the best performance after a tune IMHO because it is able to actually maintain its 48 IAT. All depends on how much effort you want to put into a cold air intake.
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10-20-2009, 02:48 PM | #90 |
CAI
Ordered mine!
Only bad news is 4-6 weeks. Order online and use the promo code to save $40. |
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10-20-2009, 02:50 PM | #91 |
Drives: 2010 cam.2ss/rs.iom,07'escalade esv Join Date: May 2009
Location: Pasc.Ms.
Posts: 841
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thanks to all involved in comparison test,...just wish that there was a way you could have tested a gmpp set up on the ls3,...just my guess is that the gmpp would not have yeilded too good of results due to the fact that it appears it's just a type of k&n filter with the same box with a nicer looking lid,....am i correct?...anyone,
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10-20-2009, 02:53 PM | #92 | |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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Quote:
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10-20-2009, 03:06 PM | #93 |
Taking it 1 day at a time
Drives: 2010 Chevy Camaro 2SS/RS Auto Join Date: Apr 2009
Location: San Antonio, TX
Posts: 751
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Im just curious why you are so combative?
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10-20-2009, 03:06 PM | #94 | |||
Drives: 2006 Silverado SS, 2009 G8 GT Join Date: Aug 2008
Location: PNW
Posts: 13,313
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Quote:
Quote:
Quote:
Where are you going with all of this?? You keep making comments but have not really said anything..... are you saying that the car is not running right with all of these CAI's? |
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10-20-2009, 03:17 PM | #95 |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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Because this is info you need if you want a car that drives right with out a tune.
Yes, If you looked at the New Era dyno on Sunday it was smoking bad and that tells me the AFR was not right, and after start it dyed and you restarted the car that is the computer and the scaling is off. |
10-20-2009, 03:19 PM | #96 |
Blessed
Drives: 2013 Sonic RS MT Join Date: Dec 2007
Location: Saint Augustine FL
Posts: 28,444
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2SSRS
Please enlighten us as to why you are asking these questions. I think we are confused as to where you are headed with this. Is there a flaw in the test? Seriously. I'm curious.
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10-20-2009, 03:23 PM | #97 | |
Drives: Red Hot track candy Join Date: Oct 2009
Location: NorCal
Posts: 1,092
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Quote:
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10-20-2009, 03:26 PM | #98 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,274
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Quote:
And if you looked at the fuel trims it was only 7% being ADDED. You have not provided one Lick of useful information to either of these threads. If you have useful information we are all ears, otherwise Please refrain from posting in this thread.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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