05-19-2020, 06:51 PM | #29 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
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Yes, running hard line. I still can imagine what's causing it. My ID1700 duty cycle is not even 50% and with triple pumps. It's -6AN supply line.
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates |
05-20-2020, 12:54 AM | #30 |
Drives: Black 2SS RS w/White Stripes Join Date: Mar 2011
Location: Katy, TX
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Just thinking here. How is the status of your battery? Could it be possible that the draw of the pumps kicking on under boost is causing a potentially failing battery to cause some wierd electrical stuff? Any other strange observations? Alternator failing?
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05-20-2020, 07:11 AM | #31 |
Drives: 2011 Camaro SS 6sp Join Date: Nov 2016
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When I was experiencing this. My values would fluctuate between 14 and 77%.
If your values are staying above 50%, and you know you’ve got good E, maybe just change the tune to run 100% of your added FF timing above 49% Alchohol.
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TMS Dart 427 FED M311s, ESS Tuning G4 Blower, DSX Triple FP Assembly, DSX FF, FIC1300, Mcleod RXT 1200HD, Edlebrock Pro Flo XT 1158whp 1017wtq. 2010 CTS-V A6 - "Stock" SOLD 630whp 658wtq 2024 F-150 RCSB 5.0 4x4 waiting for tunes... |
05-20-2020, 09:05 AM | #32 | |
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Quote:
But why was the Flex sensor installed on the return line instead of the feed line. It could cause the inconsistent reading of E85
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TSP Stage 2 Boosted Cam 227/235 at 114 LSA Fore Innovation Triple pump staged (Walbro 342 primary and 2x Walbro 450 secondaries) Procharger D1x with a 3.85 pulley ID1050x Injectors Flex Fuel Sensor Monster LT1 Twin Disk Clutch Holley Sniper Efi Intake Manifold NW 103mm Boosted TB 747rwhp at 12psi on E85 |
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05-20-2020, 10:39 AM | #33 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
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Relatively new battery. Watching my Control Module Voltage in the logs doesn't show more than a half of volt drop when doing a run with the 2nd/3rd fuel pumps kicking on (like from 14.7 to 14.27), so I don't think that's it. Thanks for the suggestion.
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates Last edited by dreksnot; 05-20-2020 at 02:01 PM. |
05-20-2020, 10:53 AM | #34 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
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The issue of my alcohol content falsely dropping is that I lose the higher spark add (benefit) from the FF table with the lower alcohol values. Sure, I can make some compensation or adjustments where it doesn't, but I'd like the FF table to add with respect to what actual alcohol I have in the tank (not something artificially low that I'm compensating for).
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates Last edited by dreksnot; 05-20-2020 at 02:01 PM. |
05-20-2020, 10:57 AM | #35 | |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
Location: Fort Collins, CO
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Quote:
1. The return line will have less flow thus less restriction through the "small" orifice through the sensor channel. That's why some install a bypass route around the sensor if installed in the supply line. 2. The alcohol content of the fuel flowing through the FF sensor is the same either in the supply or return. In all actuality, I can't see that I'd have below some threshold of fuel flowing through the sensor even though it's in the return line - I have triple pumps.
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates |
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05-20-2020, 11:15 AM | #36 | |
Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019
Location: Connecticut
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Quote:
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Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane
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05-20-2020, 11:20 AM | #37 | |
Drives: 2010 1SS LS3 Join Date: Aug 2019
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Quote:
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408/4L80E/ZL1 ESS G4 |
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05-20-2020, 12:06 PM | #38 |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
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Now that I think about it, since my FF sensor is after the FPR (and my FP is boost reference), it could be a much lower FP after the regulator and in the FF sensor. Not sure how FP would affect the FF sensor reading though...?
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates |
05-20-2020, 12:13 PM | #39 |
Drives: it changes Join Date: Nov 2010
Location: Norn Iron
Posts: 1,126
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So you're having some other issues with fuel too ? Some are saying about low fuel pressure ?
With triple pumps, there is no way FP should not be behaving as it should And you say hardline...so it's a hardline the entire length to the tank with no flexible connection anywhere ? |
05-20-2020, 01:49 PM | #40 |
Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019
Location: Connecticut
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Where is the fuel pressure read from? Before the rail? If you have 29psi before the rail you have to be basically using all the fuel that's getting to the rail, essentially running out of fuel and there's no fuel in the return line to get a proper reading. Just a guess, i have no idea how your system is set up just thinking out loud.
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Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane
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05-20-2020, 01:53 PM | #41 | |
Served USN - Atomic Chimp
Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012
Location: Fort Collins, CO
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Quote:
I'm using the original stock supply line as the return line for my setup. I'm not sure if it's entirely metal or what.
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In excess of 1,000WHP LSX434 | AGP 65/65 TT | BTR Equalizer Intake | Trickflow 245cc cathedral | BTR custom cam | Cortex EBC | n2mb WOT | ID-1700x | Brisk GR12S | RPM Lv 7 TR6060 | AGP's Triple 525LPH Fore Fuel | Monster LT1-S Triple | 4.11 DSS Proform 9", CF driveshaft, 1400hp axles | Hurst Line Lock | MGW Retro Short Throw w/old skool Hurst T-handle | ADM solid subframe mounts | Prothane Motor Mounts | Revshift Poly Trans insert | Moreno camber/caster plates |
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05-20-2020, 01:55 PM | #42 |
Drives: 2014 ZL1 Join Date: Apr 2018
Location: KCMO
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It would affect it if the volume was so low in the return line air was crossing the sensor like I said earlier. Call Dave Steck, he will answer.
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