09-12-2013, 10:53 AM | #15 | |
JT Synergy RS/2SS
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Quote:
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09-12-2013, 11:39 AM | #16 |
Drives: 2011 2SS Join Date: Jun 2013
Location: Kansas City
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I am not an expert either I am not sure that lean is the correct word but what I think OP is getting at is that his AF reading although was good and "safe" his fuel pump was maxed out so much that he was losing fuel pressure and his injector duty had to increase a lot to keep up and causing a potential unsafe situation thus causing him to go with the ZL1 set up. Me also being fairly nube to this and learning think there is more than just AF to consider when building/tuning a car and wanting to be safe presssure is just another one of these items that you should consider. Please if this is incorrect correct me I take no offence to learning and being corrected.
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2011 2SS,fti th400, ECS 1500, Flex Fuel, Boost built 376, squash fuel system
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09-12-2013, 01:38 PM | #17 |
JT Synergy RS/2SS
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09-12-2013, 01:40 PM | #18 | |
JT Synergy RS/2SS
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Quote:
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09-12-2013, 02:01 PM | #19 |
Drives: 2011 2SS Join Date: Jun 2013
Location: Kansas City
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I am also a little confused on how the conversion works as the normal conversion for kpa to psi is different from above. It is what Badbubba posted if you just do math but maybe there other others factors when you deal with car fuel pressure, not sure how the above chart reads.
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2011 2SS,fti th400, ECS 1500, Flex Fuel, Boost built 376, squash fuel system
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09-12-2013, 02:17 PM | #20 |
The Chart seems to show the conversion from kpa (eg map) to psi incorporating the usual barometric pressure of open air (100kpa or 15psi or 1 bar)
Geez, I feel like a nerd now
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09-12-2013, 07:41 PM | #21 |
JT Synergy RS/2SS
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What he said!!! All is I know is the chart came from Jannetty, and I know better than to question the master. HA!
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09-14-2013, 06:28 PM | #22 |
GrINned & JUICEd
Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009
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So the chart is subtracting 1bar, 14.5 psi. Thus stating that the 58 psi is absolute pressure and not gauge pressure. I disagree that this chart is for our application. If a mechanical fuel pressure gauge is attached to the fuel rail, it displays around 60 psi iirc. I bench tested and set my fuel pressure safety switch for 45psi gauge pressure. If the chart is correct, I would never be able to activate my N2O. Or am I missing something? The chart doesn't represent your 6.5psi boost "pushing back" on the injector fuel pressure either. Just trying to understand.
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09-14-2013, 07:09 PM | #23 |
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That chart is for boost reference.
Fuel pressure is different. You don't deduct 14.5 psi or 1 bar or 100 kpa from what you see. In fuel pressure what you see is what you have. 3 bar is 43.5 psi. 4 bar is 58 psi. |
09-15-2013, 12:53 PM | #24 |
GrINned & JUICEd
Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009
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Yep.
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GPI SS3 Cam & stuff,N.O. Plate(dedicated fuel tank,progressive,fuel hose upgrade,remote opener,heater,console switches),LNC2000,CTAP,ARH 1 7/8" LTs/gutted cats/X pipe/mufflers,Jet Hot coated LTs,GPI HPT Tune,CAI, Scoop,Rx Catch Can,Gates heater hose relocation, Remote clutch & auto brake res,Metco loop,Momentum Tunnel Brace,TSW Nurb 18",555 & 05,Pfadt trailing arms & toe rods,Autometer WB,Fesler Pillar Pod,LED strips (int),Lloyds floor & trunk mats,LED DRL/front turn & license plate,DRL harness,VLEDs tail lights,Plasticoat Bowties. Ord: Oct 5, 2009 Rec: Nov 19, 2009 13.17@112.6 stock
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09-15-2013, 02:14 PM | #25 |
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A properly programmed ZL1 fuel pump controller / ADM is necessary to get the maximum efficiency from a ZL1 pump installed in a non ZL1 Camaro.
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09-16-2013, 08:10 PM | #26 |
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09-16-2013, 08:24 PM | #27 |
JT Synergy RS/2SS
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This is what Jannetty said as well.
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