What horsepower will the LS9 injectors support at 58 psi? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

99-LS1-SS · 05-24-2010, 11:01 AM

I know boost plays a role in this so for the sake of this discussion, assume we have 8 lbs of boost. Also, assume you are supplying enough fuel volume too.

How much rear wheel or flywheel (which ever applies) horsepower will the LS9 injectors support at 58 psi on a motor with 8 lbs of boost?

carguy · 05-24-2010, 11:13 AM

I have 568 RWHP & 539 Ftlbs RW and I am good.... I am sure you can do better. I have heard 600 ish

With 15% DT Loss ( LS3 ) I figure I have about FLW652Hp & 620 FtLbs Tq FW at around 9 PSI of Boost with a maggie and full exhaust.

Fuel pressure is between 58 and 59psi constant ( DEUL PUMPS INSTALLED)

99-LS1-SS · 05-24-2010, 12:27 PM

Thanks carguy. That's close to what I was thinking too.

05-24-2010, 11:01 AM	#1
99-LS1-SS Waiting... Drives: 2009 G8 GXP M6 Join Date: Jun 2008 Location: Jamestown NC Posts: 275	What horsepower will the LS9 injectors support at 58 psi? I know boost plays a role in this so for the sake of this discussion, assume we have 8 lbs of boost. Also, assume you are supplying enough fuel volume too. How much rear wheel or flywheel (which ever applies) horsepower will the LS9 injectors support at 58 psi on a motor with 8 lbs of boost? __________________ SOLD 2009 Maverick Silver G8 GXP M6 Engine Mods: TVS 2300 Magnacharger 6.5lbs, ARH 1 7/8" long tubes with catted x-pipe Roto-Fab Intake, Custom Fuel System, Tuned by Me Drivetrain Mods: Stage 4 Monster Clutch, GForce 300M Race Axles Suspension Mods: Pedders/Wretched basic drag pack - BMR trailing arms and toe rods Misc Mods: Jamesbiz Catch can - GRRRR8 Heater hose relo kit

05-24-2010, 11:13 AM	#2
carguy Carguy Drives: 57Chevy,67,80,2@10's camaro's,04SSR Join Date: Jan 2009 Location: Freeport,IL Posts: 544	I have 568 RWHP & 539 Ftlbs RW and I am good.... I am sure you can do better. I have heard 600 ish With 15% DT Loss ( LS3 ) I figure I have about FLW652Hp & 620 FtLbs Tq FW at around 9 PSI of Boost with a maggie and full exhaust. Fuel pressure is between 58 and 59psi constant ( DEUL PUMPS INSTALLED) __________________ 2010 SS/RS LS3, 21" Rims, SLP lowering Kit & sway bars, TVS2300, Hennesy CAI, Kooks LT Headrers & Cats, Corsa Exhaust, RIP Shift ST shifter, SLP Hood & Spoiler, Slp Black out package - Grill SS & Rear SS Emblems, ADM Dual Fuel Pump , 3.6 upper Pulley, 10% overdriven Innovators West Crank Pulley& Pin Kit. .................................................. ..............................

05-24-2010, 12:27 PM	#3
99-LS1-SS Waiting... Drives: 2009 G8 GXP M6 Join Date: Jun 2008 Location: Jamestown NC Posts: 275	Thanks carguy. That's close to what I was thinking too. __________________ SOLD 2009 Maverick Silver G8 GXP M6 Engine Mods: TVS 2300 Magnacharger 6.5lbs, ARH 1 7/8" long tubes with catted x-pipe Roto-Fab Intake, Custom Fuel System, Tuned by Me Drivetrain Mods: Stage 4 Monster Clutch, GForce 300M Race Axles Suspension Mods: Pedders/Wretched basic drag pack - BMR trailing arms and toe rods Misc Mods: Jamesbiz Catch can - GRRRR8 Heater hose relo kit

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