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11-06-2017, 10:48 AM
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#1 |
 Drives: 2015 camaro ss Join Date: May 2016
Location: Tx
Posts: 57
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Injector help!
Currently have btr 3 cam, intake, headers and 3200 stall. Making 421 whp auto. Looking to go heads and e85 don't plan on making 500whp or more just wondering what kind of pump and injectors I would need to support the next mods Im doing. My tuner said I would need pump and injectors anyone running just injectors no pump or the other way around? Thanks.
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11-06-2017, 11:08 AM
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#2 |
 Drives: 2002 M3, LS3, TR6060 Join Date: Mar 2016
Location: Chicago, IL
Posts: 31
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You don't "need" to replace the injectors if you turn the fuel pressure up.
Definitely upgrade the pump though. |
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11-06-2017, 11:15 AM
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#3 | |
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Drives: 2015 camaro ss Join Date: May 2016
Location: Tx
Posts: 57
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11-06-2017, 01:16 PM
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#4 |
        
Drives: 2010 SS 2SS M6 Join Date: Aug 2016
Location: Smithsburg, Md.
Posts: 2,445
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your "tuner" should know this....you want to chance it and lean out the motor? ZL1 fuel pump, BAP and some have used ZL1 or CTSV injectors but a higher duty rating injector is also needed(IMHO)....good luck!
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2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - 150K! - All work by me...
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11-06-2017, 04:53 PM
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#5 |
 
Drives: 2011 2SS/RS LS3 Join Date: Apr 2017
Location: Dallas
Posts: 482
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I just converted to e85 last week. You'll need to upgrade your entire fuel system to go from pump gas to e85.
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GPI Built Procharger D-1/13 PSI/Race Intercooler/SS3 Cam Kit/Kooks LTH/X- pipe/FIC 1050/E85/3.91 gears/Centerforce Dual Disc clutch/Flowmaster Outlaw/775whp/680tqSOLD
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11-06-2017, 05:16 PM
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#6 | |
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Drives: 2015 camaro ss Join Date: May 2016
Location: Tx
Posts: 57
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11-06-2017, 05:16 PM
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#7 |
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Drives: 2011 2SS RS Join Date: Dec 2015
Location: Michigan
Posts: 86
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You will need at least a ZL1 pump with FPCM to go with it or have yours reprogrammed with ZL1 data as well as larger Injectors. I have a ZL1 pump, reprogrammed FPCM, and Flex injectors from a 6.2 truck(50lb at 58PSI) and I'm seeing mid 90's on Injector Duty Cylce at 58PSI.
This is a full bolt on H/C/I etc...about 500whp through an A6. I tried just injectors first and the fuel pressure dropped into the low 40's. Rock steady after the pump and FPCM reprogram. I could actually use a larger injector to drop the duty cycle some. (All of above is assuming your car is NA?) |
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11-06-2017, 06:41 PM
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#8 |
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old school chevy rodder
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While you may gain some from heads and that cam don't expect much from the gain of the e-85 ..... And both realistically I would say 20 hp max, I wonder why people go e-85 other than cooling for the antiknock of forced induction...you should read about Bo White just hooking his up for cooler track temps and the low gain he got with fairly stage three cam type..... IMO you may reconsider unless you love bad mileage and filling up more often and more crappola in the crankcase IMO.... You may be better off looking into gears or trans mod for response with a throttle controller just for kicks IMO but hey that's me.....
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2021 Wild Cherry ZL1 A10, Sunroof, Data,Red Carbon Interior, Nav, RotoFab Big Gulp , Elite x2ultra, Borla ATAK, Driveshaft shop, BMR susp, Speed covers, intercoolers, ATI , 2650 MAG, DSX lid, 103 NW, TSP Longtubes & cats, LPE, 1le mods, ,LME cover, Katech pump and chain, Trunnions, BTR stage 2, LPE boostapump, Gforce, Speed eng , Granetteli, etc etc
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11-06-2017, 07:55 PM
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#9 |
   
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,095
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I run CTSV pumps and injectors in my heads and cam LS3.
66% duty cycle on 93 94% duty cycle on E85 Just food for thought.
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter, stage 4 cam and Wilkes 11° 65cc heads Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
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11-06-2017, 09:21 PM
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#10 |
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Drives: 2015 camaro ss Join Date: May 2016
Location: Tx
Posts: 57
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Thinking on going with siemens 63lb injectors anyone use them? Are they good enough for my set up?
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11-06-2017, 09:58 PM
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#11 |
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Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,095
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Im running BTR3 cam and ported heads and CTSV injectors do well for me. 63s would do even better
__________________
Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter, stage 4 cam and Wilkes 11° 65cc heads Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
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11-06-2017, 10:05 PM
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#12 | |
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Drives: 2015 camaro ss Join Date: May 2016
Location: Tx
Posts: 57
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