How much N/A power can you get from the LS3? - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bodywerks · 05-04-2015, 07:19 PM

Quote:

Originally Posted by quickdrraw

restart... I am in a similar boat. $7.5k-8k range. Looking for 500 rwhp 530 if I can get it in my budget.

Surely, you've seen this thread:
http://www.camaro5.com/forums/showthread.php?t=401078
It's the route I plan to take. A supercharger adds weightweight, and to the top of the engine at that. For strictly 'go straight' fast I can see the draw to it, but top heavy extra weight up front does nothing for road handling, except hurt it. And adding a supercharger without other bits, like lowering compression, changing cam, porting the heads, makes for a 'flat' power increase, meaning the HP curve stays similar to the stock curve, which leaves a little to be desired for me.
To get the setup above, you have a hard pull to the redline, and twisty track-worthy power. I haven't finished pricing it out, but assuming you have all the basics(intake, exhaust, tune), this extra 125hp should run you about $4500 if you do the wrenching yourself.

Camster · 10-23-2017, 10:56 PM

Quote:

Originally Posted by 47AJV8

I figure this is probably a noob question (soz!) but I looked around and couldn't really find anything. I was wondering how much power can reasonably be gotten from a naturally aspirated LS3? I'm talking pretty aggressive cam (something like stage 2C from Livernois), fast intake manifold, CNC ported heads, headers (w/ high flow cats), cat back exhaust, good CAI and a good tune. How much power could you expect to make with those mods? And also, this is somewhat unrelated, but how much does it cost to stroke the engine to ~416 CID, and has anybody raised the compression to 11:1? Any worthwhile power gains?
Thanks again for putting up with my noobiness! You can just link me to a thread that explains is well if you like! Thank you

I know is an old thread but been still relevant to same question by anyone today I desided to post my heads and cam ls3 infolink sense the above calls for (how much power can reasonably be gotten from a naturally aspirated LS3?)
I perhaps tuned the build to make as much power out of a stock block and internals note is on E85 the car is a blast to start drive and to show up any where only been to the track ones waiting on a cool day in a few weeks hope for 10.3 n-a on my next track day.

https://www.corvetteforum.com/forums...track-day.html

sixty9fordkiller · 02-13-2018, 10:14 AM

Quote:

Originally Posted by Camster

I know is an old thread but been still relevant to same question by anyone today I desided to post my heads and cam ls3 infolink sense the above calls for (how much power can reasonably be gotten from a naturally aspirated LS3?)
I perhaps tuned the build to make as much power out of a stock block and internals note is on E85 the car is a blast to start drive and to show up any where only been to the track ones waiting on a cool day in a few weeks hope for 10.3 n-a on my next track day.

https://www.corvetteforum.com/forums...track-day.html

N/A car?

lazerlemonta · 02-13-2018, 10:42 AM

With a well sorted full zoot build a stock CI LS3 could approach 600 RWHP

sixty9fordkiller · 02-13-2018, 10:53 AM

Quote:

Originally Posted by lazerlemonta

With a well sorted full zoot build a stock CI LS3 could approach 600 RWHP

yes! this guy did 573rwhp/604rwtq using a solid roller and working the stock parts creatively......

stock LS3 heads. port, polished, and milled
fly cut pistons
stock rods and crank
solid roller cam
14:1 compression

573rwhp/604rwtq

If i were to ever see this vette and looked at that motor with the car off, i wouldnt even think it was a 500RWHP car. Sneaky motherf******!!!

so im guessing with a forged rotating assembly and aftermarket 13 or 12 degree (or 11 if you really have extra $$$) heads, close to 600RWHP is likely very doable N/A and probably the limits of a N/A LS3 without using laughing gas

lazerlemonta · 02-13-2018, 12:25 PM

Quote:

Originally Posted by sixty9fordkiller

yes! this guy did 573rwhp/604rwtq using a solid roller and working the stock parts creatively......

stock LS3 heads. port, polished, and milled
fly cut pistons
stock rods and crank
solid roller cam
14:1 compression

573rwhp/604rwtq

If i were to ever see this vette and looked at that motor with the car off, i wouldnt even think it was a 500RWHP car. Sneaky motherf******!!!

so im guessing with a forged rotating assembly and aftermarket 13 or 12 degree (or 11 if you really have extra $$$) heads, close to 600RWHP is likely very doable N/A and probably the limits of a N/A LS3 without using laughing gas

With a vacuum pump, alternative fuel, crank scraper, electric water pump ITB intake you can crest 600 plus take the time to micro blue bearings in the rear, trans and wheels.

SynergyGreenSS · 02-13-2018, 12:53 PM

Quote:

Originally Posted by sixty9fordkiller

yes! this guy did 573rwhp/604rwtq using a solid roller and working the stock parts creatively......

stock LS3 heads. port, polished, and milled
fly cut pistons
stock rods and crank
solid roller cam
14:1 compression

573rwhp/604rwtq

If i were to ever see this vette and looked at that motor with the car off, i wouldnt even think it was a 500RWHP car. Sneaky motherf******!!!

so im guessing with a forged rotating assembly and aftermarket 13 or 12 degree (or 11 if you really have extra $$$) heads, close to 600RWHP is likely very doable N/A and probably the limits of a N/A LS3 without using laughing gas

But isn’t that a Z06 with an LS7?

sixty9fordkiller · 02-13-2018, 01:15 PM

Quote:

Originally Posted by SynergyGreenSS

But isn’t that a Z06 with an LS7?

no. its an LS3 c6

sixty9fordkiller · 02-13-2018, 01:16 PM

look at the intake manifold. thats an LS3 intake. not LS7

also, look at the front bumper, thats a base C6 front bumper

SynergyGreenSS · 02-13-2018, 01:16 PM

Quote:

Originally Posted by sixty9fordkiller

no. its an LS3 c6

Oh it’s a grand sport

xc_SS/RS · 02-13-2018, 03:06 PM

Quote:

Originally Posted by lazerlemonta

With a vacuum pump, alternative fuel, crank scraper, electric water pump ITB intake you can crest 600 plus take the time to micro blue bearings in the rear, trans and wheels.

i think ITB's would push it to 600+ alone. the rest is just icing on the cake lol

WHAMMO · 02-14-2018, 01:21 AM

Quote:

Originally Posted by sixty9fordkiller

yes! this guy did 573rwhp/604rwtq using a solid roller and working the stock parts creatively......

stock LS3 heads. port, polished, and milled
fly cut pistons
stock rods and crank
solid roller cam
14:1 compression

573rwhp/604rwtq

If i were to ever see this vette and looked at that motor with the car off, i wouldnt even think it was a 500RWHP car. Sneaky motherf******!!!

so im guessing with a forged rotating assembly and aftermarket 13 or 12 degree (or 11 if you really have extra $$$) heads, close to 600RWHP is likely very doable N/A and probably the limits of a N/A LS3 without using laughing gas

While it is a nice setup and 570rwhp are believable, BUT 604rwtq? sorry but no. Dyno is off.

It trapped 128-130mph, which I think is not enough to reflect 574rwhp in a lightweight vette. Maybe its a slow track, harsh DA, idk. Vette with hyd cam only ran as good with no more than 475-480rwhp(realistic number). https://youtu.be/TjmYvs8J2Gg like this one, and trapped 128mph too. Its not 130, still you gain more than 2mph with 100rwhp more..

But still a big solid roller or hyd cam, ported heads, high comp ratio and a matching intake(short runner), close to 600 is very doable.

zz430camaro · 02-14-2018, 02:40 AM

Personally, I think this video is Bull Shit, the numbers just dont add up. On the Youtube video he says they milled the heads .150, this is just stupid.

Rhino79 · 02-14-2018, 07:38 AM

No one has pushed a NA LS3 harder than we have here.

I went 10.33 at 131 SBE ls3 with one of our low lash cams, ported heads and still running ls3 manifold. I made 530s on that setup.

My current build is going to be carb style intake, ported heads, solid roller etc.. Looking for 600 rwhp range.

02-13-2018, 10:42 AM	#46
lazerlemonta Drives: 2010 C6 1LT Join Date: Dec 2011 Location: Virginia Posts: 879 View My Garage	With a well sorted full zoot build a stock CI LS3 could approach 600 RWHP __________________ 2010 C6 JET STREAM BLUE BOLT ONS TO THE EXTREME, GPI 281cc HEADS, Darth_V8r SPEC CAM, FAST 102 INTAKE, CRANK SCRAPER, QUARTER MASTER 7.25" CLUTCH, RPM 3.90 STAGE II DIF, Z51 Gear Set AND E85 Best ET 10.58 @ 131.8 stock heads and stock cam 453/445 SAE 10.62@134.82 GPI 281CC Heads, SS4 Cam and X1 Intake Best 1/8 6.80@105.75 Best MPH 134.82

02-13-2018, 01:16 PM	#51
sixty9fordkiller Donkey Dick Cam Camaro Drives: 2010 2SS/RS LS3 M6 Join Date: Oct 2009 Location: Los Angeles, CA Posts: 2,000	look at the intake manifold. thats an LS3 intake. not LS7 also, look at the front bumper, thats a base C6 front bumper __________________ Bone Stock

02-14-2018, 02:40 AM	#55
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	Personally, I think this video is Bull Shit, the numbers just dont add up. On the Youtube video he says they milled the heads .150, this is just stupid.

02-14-2018, 07:38 AM	#56
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	No one has pushed a NA LS3 harder than we have here. I went 10.33 at 131 SBE ls3 with one of our low lash cams, ported heads and still running ls3 manifold. I made 530s on that setup. My current build is going to be carb style intake, ported heads, solid roller etc.. Looking for 600 rwhp range.