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10-03-2015, 10:11 AM
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#1 |
 
Drives: 2013 Camaro 1LS - Ashen Gray Join Date: Jan 2015
Location: Florida
Posts: 588
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FI fuel delivery
So lately the has been a lot of talk about fuel limitations and wahat improvements should be made ...The LFX engine shows to use the same in tank pump as an SS, the upgrade would be the ZL1 (part#19260557) and would supply more fuel to engine if needed....however it seems the HPFP is going keep fuel delivery into the engine the same.... the LF3 hpfp (part#12658270) and LF4 hpfp (part#12652441) both are uprgrades from the ATS-V 3.6TT ..... I have not been able to verify if they are interchangeable with the LFX and if so any flow numbers..... anyone have this info available?
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 "WIDOW" Overkill Edition w/Mace Cams,80mm tb,Jacfab spacer/ported intake,Alky Control,ARH off road pipes,SOLO custom system,3.91 gears, MGW,Phantom grilles,ZL1 appearance pkge, 3dCarbon vents, Lingenfelter hood and spoiler, PLX boost/wideband modules/gauge,ZL1 fuel pump,LF3 hpfp,DSS aluminum driveshaft,JPSS sway bars, Z28 replica wheels and CxRacing coilovers.. |
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10-03-2015, 11:29 AM
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#2 |
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Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Gretchen was able to put the LF3 pump on his car but I seem to recall there was something custom about it to make it work...
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10-03-2015, 12:32 PM
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#3 |
        
Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012
Location: Edmond, Oklahoma
Posts: 3,073
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I would like to know this too. The difference in the hpfp between the lf3 and lf4. Jason's right, Gretchen made the lf3 pump work they had to change the piece that goes in against the cam I think. Its definitely doable. I need to figure out who will be doing my tuning and get with them about which I should go with. Seems the lf4 pump would be capable of more power. I really don't want to run suplumental fuel.
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3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph Last edited by JantzenOKC; 10-03-2015 at 02:54 PM. |
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10-05-2015, 09:25 AM
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#4 |
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Drives: 2013 Camaro 1LS - Ashen Gray Join Date: Jan 2015
Location: Florida
Posts: 588
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need Gretchen to chime in on this one - seen mention in JantzenOKC post (sorry for your mishap but exited about the re-birth !!) ....
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"WIDOW" Overkill Edition w/Mace Cams,80mm tb,Jacfab spacer/ported intake,Alky Control,ARH off road pipes,SOLO custom system,3.91 gears, MGW,Phantom grilles,ZL1 appearance pkge, 3dCarbon vents, Lingenfelter hood and spoiler, PLX boost/wideband modules/gauge,ZL1 fuel pump,LF3 hpfp,DSS aluminum driveshaft,JPSS sway bars, Z28 replica wheels and CxRacing coilovers.. |
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10-05-2015, 01:23 PM
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#5 |
  
Drives: 11 F150 EB/13 Sonic RS/15 Z06 Join Date: Sep 2010
Location: Little Rock, AR
Posts: 7,129
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Yes, Aaron at GPI fitted the lash cap from a Ferrari F430 to it. I think he had to drip it a bit, but it got the plunger throw length right. That was really the only change besides tuning it. That with the ZL1 in-tank pump was good for about 650 RWHP.
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New Ride -- 2015 Z06 2LZ (stock) -- Journal
Old Ride -- 2012 Camaro 2LT/RS (647 RWHP & 726 RWTQ) -- Build Thread |
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10-05-2015, 06:12 PM
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#6 |
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Boosted
Drives: 2012 1LT RS... with snails Join Date: May 2012
Location: New Hampshire
Posts: 1,455
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Ferrari parts? breaking the bank there.
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 IPS Twin Turbos, Corsa Exhaust, Ported Throttle Body. 461 rwhp 443 rwtq!! *Cameron Hass.ani* |
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10-06-2015, 06:33 AM
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#7 | |
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Drives: 11 F150 EB/13 Sonic RS/15 Z06 Join Date: Sep 2010
Location: Little Rock, AR
Posts: 7,129
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Quote:
 My pony car had a little had a little stallion in it!
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New Ride -- 2015 Z06 2LZ (stock) -- Journal
Old Ride -- 2012 Camaro 2LT/RS (647 RWHP & 726 RWTQ) -- Build Thread |
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10-06-2015, 02:30 PM
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#8 |
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Drives: 2013 Camaro 1LS - Ashen Gray Join Date: Jan 2015
Location: Florida
Posts: 588
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seems tricky - how difficult is this to do, is there risk of lash cap falling into engine... would it be the same for lf4 pump....
Gretchen at what base or rwhp numbers will the stock lfx fuel system supply safely.. I will be using meth kit with ipf supercharger/cams setup and3.40 pulley
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"WIDOW" Overkill Edition w/Mace Cams,80mm tb,Jacfab spacer/ported intake,Alky Control,ARH off road pipes,SOLO custom system,3.91 gears, MGW,Phantom grilles,ZL1 appearance pkge, 3dCarbon vents, Lingenfelter hood and spoiler, PLX boost/wideband modules/gauge,ZL1 fuel pump,LF3 hpfp,DSS aluminum driveshaft,JPSS sway bars, Z28 replica wheels and CxRacing coilovers.. |
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10-06-2015, 02:39 PM
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#9 |
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Drives: 2013 Camaro 1LS - Ashen Gray Join Date: Jan 2015
Location: Florida
Posts: 588
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part #change for ZL1 pump - now #19303293
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"WIDOW" Overkill Edition w/Mace Cams,80mm tb,Jacfab spacer/ported intake,Alky Control,ARH off road pipes,SOLO custom system,3.91 gears, MGW,Phantom grilles,ZL1 appearance pkge, 3dCarbon vents, Lingenfelter hood and spoiler, PLX boost/wideband modules/gauge,ZL1 fuel pump,LF3 hpfp,DSS aluminum driveshaft,JPSS sway bars, Z28 replica wheels and CxRacing coilovers.. |
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10-06-2015, 04:03 PM
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#10 |
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Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012
Location: Edmond, Oklahoma
Posts: 3,073
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I snapped a couple pics of the LFX hpfp and cam follower. I have no idea what the lf3 one looks like or what the piece looks like that Aaron made for it. Id love to see the lash cap and how it goes on there.
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3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph |
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