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| MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection MazdaSpeed 3/6 - Fuel, Nitrous & Water Injection Have a CDFP fuel pump question? Do you want to add Nitrous or Water Injection to your Mazdaspeed 3/6 ? Please come on in! |
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11-04-2008, 05:36 PM
| #1 |  |
| We want straight air!  Join Date: Apr 2008 Location: San Diego
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|  Fuel pressure dip: Do I need a new pump? This is a 3rd gear log. The fuel pressure dipped, but the AFR stayed the same. | ||||||||
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11-04-2008, 05:38 PM
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| Speed6 Enthusiast  | sure does look like it. i was told i needed one and my tuning couldn't go on cause my does the same thing. mine just isn't as severe.  |
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11-04-2008, 05:42 PM
| #3 | |
| Faster then that guy ^^^^  Join Date: Mar 2008 Location: Central NJ
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 | mine too!!! 
__________________ 2006 Mazdaspeed 6 GT Black Mica 1G DSM BOV ~ CPE Xcel CAI w/Injen Hydroshield ~ AP ~ CPE FCF (stock map) ~ Custom Side-to-Side FMIC ~ Corksport Downpipe (Heat Wrapped) ~ DNP Mani ~ Custom Turbo Inlet Pipe ~ TWM Stage 1 SS ~ CPE MM ~ H&R's ~ SPC BJ's ~ Autometer Boost Gauge w/ Custom Built Vent Pod ~ Dashhawk ~ Whiteline RSB ~ CDFP Internals ~ CPE RDM ~ Custom STB ~ Magnaflow CBE ~ Custom Test Pipe ~ labonte meth kit ~ CC ~ DMH Electronic Cutout (Soon to be Microprocessor Controlled) ~ 13.4 @ 99  | ||||||||
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11-04-2008, 05:59 PM
| #4 | |
| We want straight air! Join Date: Apr 2008 Location: San Diego
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| Is it consistent for you guys? I've been logging for about a month now, and this is the first time we've seen this. In fact, today's log doesn't have the dip. Today's log was done in 4th gear. | ||||||||
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11-04-2008, 06:02 PM
| #5 | |
| Speed6 Enthusiast | i'll have to go grab my dashhawk and see if my 3rd gear log did it as well, what i posted was 4th gear, but i'm almost certain it was there. |
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11-04-2008, 06:18 PM
| #6 | |
| Speed6 Enthusiast |  |
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11-04-2008, 06:49 PM
| #7 | |
| Senior Member  Join Date: Mar 2008 Location: StL, MO
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__________________ 07 COSMIC BLUE MS3 GT | |||||||||
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11-04-2008, 07:32 PM
| #8 | |
| Faster then that guy ^^^^ Join Date: Mar 2008 Location: Central NJ
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| omg cant wait for internals to come!!!
__________________ 2006 Mazdaspeed 6 GT Black Mica 1G DSM BOV ~ CPE Xcel CAI w/Injen Hydroshield ~ AP ~ CPE FCF (stock map) ~ Custom Side-to-Side FMIC ~ Corksport Downpipe (Heat Wrapped) ~ DNP Mani ~ Custom Turbo Inlet Pipe ~ TWM Stage 1 SS ~ CPE MM ~ H&R's ~ SPC BJ's ~ Autometer Boost Gauge w/ Custom Built Vent Pod ~ Dashhawk ~ Whiteline RSB ~ CDFP Internals ~ CPE RDM ~ Custom STB ~ Magnaflow CBE ~ Custom Test Pipe ~ labonte meth kit ~ CC ~ DMH Electronic Cutout (Soon to be Microprocessor Controlled) ~ 13.4 @ 99 | ||||||||
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11-05-2008, 10:21 AM
| #10 | |
| Faster then that guy ^^^^ Join Date: Mar 2008 Location: Central NJ
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| Well, initial fueling demand is greatest at peak torque. Fueling requirements then follow the torque curve. Peak torque is almost always at a lower RPM, so fuel requirements are greatest there. As torque falls, fueling requirements fall. At higher RPM, you actually have more ability to compress fuel because it is driven off the engine (camshaft). your afr's did go lean. look at where the FP dropped and the AFR over that point.
__________________ 2006 Mazdaspeed 6 GT Black Mica 1G DSM BOV ~ CPE Xcel CAI w/Injen Hydroshield ~ AP ~ CPE FCF (stock map) ~ Custom Side-to-Side FMIC ~ Corksport Downpipe (Heat Wrapped) ~ DNP Mani ~ Custom Turbo Inlet Pipe ~ TWM Stage 1 SS ~ CPE MM ~ H&R's ~ SPC BJ's ~ Autometer Boost Gauge w/ Custom Built Vent Pod ~ Dashhawk ~ Whiteline RSB ~ CDFP Internals ~ CPE RDM ~ Custom STB ~ Magnaflow CBE ~ Custom Test Pipe ~ labonte meth kit ~ CC ~ DMH Electronic Cutout (Soon to be Microprocessor Controlled) ~ 13.4 @ 99 | ||||||||
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11-05-2008, 10:27 AM
| #11 | |
| pwerslave,ms3ica,s3type2  | Yeha just like buildabong when it dips down like that to 1000-800 u need a upgraded fuel pump.
__________________  no resiantors, ms cia, turboxs rfl vta, standback set to 20psi(meth) , autometer boostguage,3.5 ETS tmic. test pipe, corksport inserts, Devilsown meth injection, Extrudehoned speed6 cold pipe SOON to come CP-E FLASH & CP-E Meth Controller, CPFP ,Denso plugs step 2 colder!!! |
