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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 12-23-2012, 12:15 PM   #1
nbrigdan
 
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How much N/A power can you get from the LS3?

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
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Old 12-23-2012, 12:35 PM   #2
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without upping the displacement 520-530 is pretty max'd out. Upward of 600 if you up the displacement.
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Old 12-23-2012, 12:40 PM   #3
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Sweet thanks, do you know how much it usually runs to have a 416 stroker installed by someone who knows what they're doing?
Nice challenger BTW! (If that's yours)
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Old 12-23-2012, 12:46 PM   #4
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without upping the displacement 520-530 is pretty max'd out. Upward of 600 if you up the displacement.
I 2nd this. A resleved and stroked LS3 block with big bore aftermarket heads, monster cam and Fast 102/102 could probably get you 600rwhp but on a stock shortblock 520rwhp is about the max. A bolt on ECS or Whipple could give you the same 600rwhp on a otherwise stock longblock.
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Old 12-23-2012, 12:52 PM   #5
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Damn he was talking RWHP? I think I could *live* with 520 haha
Either of you guys know how much stroking costs? For 416 or 427? I've looked a ton online but can't get a straight answer!
And any information on raising the compression? Or is it not a big enough change for it to make a difference? Thanks again
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Old 12-23-2012, 01:05 PM   #6
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buying a short black runs 4500-5000 and then you have install costs unless doing it yourself.

But you really need a good set of heads/cam/headers to maximize your new ound displacement.

if you are thinking of a NA setup, id go a 429 with a LS7 top end.

and yes, there are always benefits of upping the compression on a NA setup.
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Old 12-23-2012, 01:11 PM   #7
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I hit 501 with the mods in my sig. Like the OP said..... if I did an UD pulley, ported heads, TB, and a few other mods, I would guess 520-530.....
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Old 12-23-2012, 01:17 PM   #8
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getting to 480-495 is relatively easy. Getting the last 30-40 becomes expensive.
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Old 12-23-2012, 01:19 PM   #9
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Quote:
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buying a short black runs 4500-5000 and then you have install costs unless doing it yourself.

But you really need a good set of heads/cam/headers to maximize your new ound displacement.

if you are thinking of a NA setup, id go a 429 with a LS7 top end.

and yes, there are always benefits of upping the compression on a NA setup.
Cool, thanks for all the good info, and since I'm a noob (as you can tell) what exactly do you mean by "LS7 top end", intakes or what? And do you know the going rate for selling an LS3 with just 25K miles on it? To recover some of the cost.

Thanks rage
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Old 12-23-2012, 01:21 PM   #10
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So Camper, do you think FI would probably be the way to go? I was looking at the turbonetics single turbo kit, makes about 560 RWHP, and is 7k, or should I look elsewhere for a better deal?
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Old 12-23-2012, 01:25 PM   #11
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I would do the ECS kit, best HP per $ and great support from the fellas at ECS. http://www.camaro5.com/forums/showthread.php?t=265078

florida speed has a great deal right now. $5500-6000 with fuel upgrades I believe.
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Old 12-23-2012, 01:34 PM   #12
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Cool thanks, ya that does seem like a really good deal, is it same to assume that with LT Heads and a cat back 700 hp at the engine wouldn't be a problem?
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Old 12-23-2012, 01:37 PM   #13
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that kit has seen upwards of 800-1000 with the correct supporting mods.

It has unlimited potential, but i'd start with the base and go from there. There is a ton to learn and i'd start doing research before jumping in to deep.
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Old 12-23-2012, 01:39 PM   #14
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Speaking of ECS...mine goes in next week
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Old 12-23-2012, 01:41 PM   #15
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Quote:
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that kit has seen upwards of 800-1000 with the correct supporting mods.

It has unlimited potential, but i'd start with the base and go from there. There is a ton to learn and i'd start doing research before jumping in to deep.
Thanks a lot man, will do.
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Old 12-23-2012, 02:00 PM   #16
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What are your goals? Are you chasing a number? Track times? Street creed?
More importantly what is your budget?

Putting down 520 or anything in that area your gonna need a few other upgrades as well. You'll need a clutch, half shafts, a diff eventually lol or one good romp and those tires hooking and something will let go.

You pick a cam according to the parts you have chosen especially the heads. The heads is where your power will be made. But first you need to set your goals.
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Old 12-23-2012, 02:03 PM   #17
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our defibrillator cam makes 470-480 rwhp and drives awesome on ls3 manual cars. only other mods needed are the standard, headers, exhaust, intake. to crank the 500 mark i would run our ported intake/tb combo and you should hit it no problem but if you really want to max it out a nice set of heads will do wonders!
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Old 12-23-2012, 02:14 PM   #18
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Speaking of ECS...mine goes in next week
Daaaaaaamn!

Ecs has some good shiat!!!

Congrats and you will be providing us with results right? Lol
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Old 12-23-2012, 02:17 PM   #19
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What are your goals? Are you chasing a number? Track times? Street creed?
More importantly what is your budget?

Putting down 520 or anything in that area your gonna need a few other upgrades as well. You'll need a clutch, half shafts, a diff eventually lol or one good romp and those tires hooking and something will let go.

You pick a cam according to the parts you have chosen especially the heads. The heads is where your power will be made. But first you need to set your goals.
I'm just interested in what it would take to get a fast, fun mountain car, that is drivable every day, 600-700bhp is probably good.
I'm thinking around 8-9K for the engine mods.
I've looked into clutches already, I was interested by the SPEC stage 2, or 2+ one, are those any good?
Could you link me to some good half shafts? I'm kinda clueless to some of the details :P
Okay cool Thanks Helpful people FTW!

Also, does an aluminium flywheel make the engine rev faster? Or is that just non-sense?
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Old 12-23-2012, 02:17 PM   #20
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Quote:
Originally Posted by Joe@CPR.com View Post
our defibrillator cam makes 470-480 rwhp and drives awesome on ls3 manual cars. only other mods needed are the standard, headers, exhaust, intake. to crank the 500 mark i would run our ported intake/tb combo and you should hit it no problem but if you really want to max it out a nice set of heads will do wonders!
Good to know, thanks
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Old 12-23-2012, 02:21 PM   #21
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Like Litle said set a goal. Make a plan to reach your goal. Most importantly start saving your $$$. Your gonna need to pay to play.

Carl
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Old 12-23-2012, 03:06 PM   #22
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Will do!
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Old 12-23-2012, 09:17 PM   #23
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Lg motorsports has made 560 with stock displacement
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Old 12-24-2012, 08:49 AM   #24
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The hardest part is the fact that you live in Canada.

To save money you can either sell your shortblock minus the accessories, oil pan and covers. Sell your head as well. Some sponsors buy shortblocks that are still good.

You can then order a stroker motor from Livernois or AES they are in Illinois.
Or from TSP (Texas Speed ). Check their websites and give them a call.
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Old 12-24-2012, 10:39 AM   #25
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SPEC Stage 3+! That's overkill for you, but that's what I went with based on their recommendation.
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