800+hp on fully built LS3?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

pyr0b0y · 05-12-2011, 04:19 PM

Anyone out there rebuild there LS3 and making 800+rwhp on 91 octane? Im ready to rebuild my engine. But im not sure what way to go as cost is a factor. I can get a 418 LS3 built for around $9k plus install labor. I would add twin turbos. My question is will I be pretty much be able to make 800+ with my current 376 fully built?

As a side note, how much power can i squeeze out of a maggie?

pyr0b0y · 05-13-2011, 09:56 AM

bump

*SSE 4 2SS* · 05-13-2011, 10:50 AM

Quote:

Originally Posted by pyr0b0y

Anyone out there rebuild there LS3 and making 800+rwhp on 91 octane? Im ready to rebuild my engine. But im not sure what way to go as cost is a factor. I can get a 418 LS3 built for around $9k plus install labor. I would add twin turbos. My question is will I be pretty much be able to make 800+ with my current 376 fully built?

As a side note, how much power can i squeeze out of a maggie?

I am running a fully built LS-3, including the LS-3 factory head casting...

My block has been sleeved and has fully forged internals...

The heads were re-worked by a hugely succesful head builder, and the LS-3 castings will flow up to and a little over 390 CFM... I know this personally...

Does the quoted price you mention include heads, or is that just for the shortblock...

With twin turbo's, and a hugely conservative tune, running 12 lb's of boost, I am making right at 800 HP... We are only running 12 degrees of timing... The dyno showed we can add at least 100+ HP just by cranking in more timing... We were waiting for more miles on the motor before we pushed her that hard... When I get home from Brazil, we will probably add some race fuel and see what she is capable of....

There are a few guys running Cog driven Blowers making 18 lbs of boost, and making huge power as well... but thats the limit of my blower knowledge...

pyr0b0y · 05-13-2011, 10:55 AM

It was just under $9k for the longblock. I'm trying to figure out if I can make 800 by just forging the bottom end of my current block, or i should go with the 418

kpwalls06 · 05-13-2011, 11:48 AM

Quote:

Originally Posted by pyr0b0y

It was just under $9k for the longblock. I'm trying to figure out if I can make 800 by just forging the bottom end of my current block, or i should go with the 418

I was in the same boat as you, trying to decide between rebuilding my 376, or purchasing a new 418. I talked with a few shops, told them my overall goals for the car, and ended up going with the 418 because as we all know there's just no replacement for displacement. That, and the cost difference between rebuilding my engine and dropping a brand new one was small enough I felt justified in just replacing it. When it's done I'll have my original LS3 sitting around to put in something else later. I'm planning the same route for the future, TT making high HP; and I felt a fully forged 418 is the way to go for my goals. Don't forget, you have to add in associated costs for new drivetrain parts (diff., axles, shaft, posibly a tranny) and a fuel system that will keep it juiced. I'd say new motor all the way, but in the end it's about personal preference and what you can afford. Find a reputable shop you feel comfortable with and talk with them about your intentions and goals for the car, cause knowledge is power too.

axis · 05-13-2011, 04:43 PM

There's a shop on here that has made 700whp on the STOCK bottom end. Granted they backed it back down, but just goes to show you what's possible. If you fully forge your bottom end and drop the CR down a tad, 800whp shouldn't be a problem. I'd suggest you cruise the FI section and see what others are doing. Might give you some ideas.

Bigdog · 05-13-2011, 05:48 PM

We have 800 rwhp on a stock LS3, the only internal mod is the cam pkg.

LDHitman23 · 07-17-2013, 06:33 PM

Let me know what you end up doing. I am kind of to the point where you are and I would like to get to 700whp safely without finding myself on the side of the road.

Camper · 07-17-2013, 06:47 PM

id be more concerned with paying 9k+ install labor..

this is taking your ls3 block or new block?

Camper · 07-17-2013, 06:49 PM

you could make 800 easy with just forged rods/pistons using stock crank tbh with a turbo setup.

edit:didnt see 91 octane.. no e85 in cali?

Camper · 07-17-2013, 06:49 PM

Quote:

Originally Posted by Bigdog

We have 800 rwhp on a stock LS3, the only internal mod is the cam pkg.

he said safely.

willhe64 · 07-17-2013, 06:55 PM

Quote:

Originally Posted by kpwalls06

as we all know there's just no replacement for displacement.

And there's no end to the short bus idiots on this site who will argue that point with you

litle88 · 07-17-2013, 07:21 PM

Quote:

Originally Posted by willhe64

And there's no end to the short bus idiots on this site who will argue that point with you

or the ones that ask a question that might not get an answer since its about 2 years old. Hell even quoting a 2+ year old post LMAO

axis · 07-17-2013, 11:21 PM

Quote:

Originally Posted by litle88

or the ones that ask a question that might not get an answer since its about 2 years old. Hell even quoting a 2+ year old post LMAO

There seems to be a rash of resurrecting old threads these day. Typically your good friend is the one doing it.

05-12-2011, 04:19 PM	#1
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	800+hp on fully built LS3?? Anyone out there rebuild there LS3 and making 800+rwhp on 91 octane? Im ready to rebuild my engine. But im not sure what way to go as cost is a factor. I can get a 418 LS3 built for around $9k plus install labor. I would add twin turbos. My question is will I be pretty much be able to make 800+ with my current 376 fully built? As a side note, how much power can i squeeze out of a maggie? __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

05-13-2011, 09:56 AM	#2
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	bump __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

05-13-2011, 10:55 AM	#4
pyr0b0y need....more....hp Drives: The Neighbor Hater Join Date: Dec 2010 Location: San Mateo, CA Posts: 4,091	It was just under $9k for the longblock. I'm trying to figure out if I can make 800 by just forging the bottom end of my current block, or i should go with the 418 __________________ BUILD THREAD BUILT AND MAINTAINED BY BLU808 Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims

05-13-2011, 04:43 PM	#6
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	There's a shop on here that has made 700whp on the STOCK bottom end. Granted they backed it back down, but just goes to show you what's possible. If you fully forge your bottom end and drop the CR down a tad, 800whp shouldn't be a problem. I'd suggest you cruise the FI section and see what others are doing. Might give you some ideas. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

05-13-2011, 05:48 PM	#7
Bigdog Drives: 2010 Camaro SS Join Date: Jan 2009 Location: Connecticut Posts: 79	We have 800 rwhp on a stock LS3, the only internal mod is the cam pkg. __________________ 9.82 @ 139 mph Vortech YSI cog drive supercharger w/ JRE Upgrade Pack Untouched LS3 Long block sans the Cam and valvetrain 14.5 psi boost JRE Rough Idle Blower Cam ADM Fuel system & Injector Dynamics ID-1000s ARH 2 inch Headers, off road pipes TCI TH400 Trans & 5000rpm stall w/trans brake DSS 9 inch conversion with 3.93 Bogart Wheels and Hoosier tires Jannetty Racing tuned 800 rwhp

07-17-2013, 06:33 PM	#8
LDHitman23 Drives: 2010 Camaro 1SS/RS Join Date: Feb 2010 Location: Oklahoma City Posts: 222	Let me know what you end up doing. I am kind of to the point where you are and I would like to get to 700whp safely without finding myself on the side of the road. __________________ Texas Speed LT Headers (no cats), LS3 Monster blower cam, Muffler Delete, Stage 3 Spec 3 Clutch,102mm F.A.S.T Intake Manifold, Comp Cam Push Rods, Comp Cam Dual Springs, D1-SC Procharger, ID850cc Injectors, Stealth Fuel Pump, F.A.S.T Fuel Rails, Tune by Brett Seaburg, Nitto Street Radials, Amber Halos and Fog Lights, Window Tint (5%) Nightshade Tail Lights, Interior Amber Dome Light and Trunk.

07-17-2013, 06:47 PM	#9
Camper Banned Drives: 10' 2SS LS3 M6 Join Date: May 2012 Location: Phoenix,AZ Posts: 1,370	id be more concerned with paying 9k+ install labor.. this is taking your ls3 block or new block?

07-17-2013, 06:49 PM	#10
Camper Banned Drives: 10' 2SS LS3 M6 Join Date: May 2012 Location: Phoenix,AZ Posts: 1,370	you could make 800 easy with just forged rods/pistons using stock crank tbh with a turbo setup. edit:didnt see 91 octane.. no e85 in cali?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
5th Gen Suspension -- The Book	JusticePete	Suspension / Brakes / Chassis	151	05-07-2015 05:52 PM
800 RWHP STOCK LONG BLOCK LS3	JANNETTYRACING	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	34	03-10-2012 10:24 AM
FS: My Lingenfelter Built LS3	paul2010	V8 - Engine, Exhaust, Bolt-Ons, Tuning Equipment	14	09-04-2010 04:05 PM
Edmunds: GM Foreign-Exchange Program: Holden Special Vehicles Getting LS3	Scotsman	General Automotive + Other Cars Discussion	5	03-27-2008 12:51 AM