09-30-2011, 12:49 AM | #15 |
Slow Turtle
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Stroking a boosted motor is an exercise in futility. You're limited by what the boost device pushes into the motor, not by the motor itself.
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09-30-2011, 03:59 AM | #16 |
Drives: 2012 GT500 SVTPP 2010 Traverse LTZ Join Date: May 2009
Location: Roanoke,TX
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2.9L doesn't limit it! Just saying And for that matter, I think you would be good with the 2.3 up to 750-800, at least ADM, SLP, Lingenfelter, Hennessey (and other tuners I missed) seem to think so.
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09-30-2011, 07:56 AM | #17 |
Drives: 2010 Camaro (M6) 1000+ HP SBE Join Date: Jun 2011
Location: Houston
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All great comments gentlemen, and taken under advisement. In my gut I felt like keeping the LSA would probably be the best route to take as I understand that it is basically a detuned LS9 which upgrading the supercharger and forging the bottom end can easily fix. As one of you pointed out, modding the LSA would be cheaper in the long run VS relpacing with the LS7, but you must admit there is something a bit sexy with saying you have a 427 sitting under the hood
I really dont know much about all of this engine detail stuff, that is why I am asking. The little bit I have picked up just by asking questions is just enough to be dangerous, but I have never owned a muscle car and I would rather shell out the bucks to get it right the first time instead of continually going back to add this or that later on. One of you stated that stroking doesnt necessarily add HP and that could be true. But since I am having the bottom end forged I may as well, right? I understand it does improve torque, but someone (possibly Ted Jannety) stated that you gain about 1 hp for each cui added so going from 376 to 416/417 would add about 40 hp and a bunch of torque so I am told. |
09-30-2011, 09:47 AM | #18 |
Faith Keeper
Drives: 2012 Silverado LTZ, 2010 2SS/RS Join Date: Nov 2008
Location: Saskatoon, Saskatchewan Canada
Posts: 2,764
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Why not Sell the LSA and buy an LS9?
Pretty good starter motor. You could mod after if you still felt the need. Although if you have never owned a muscle car, you should try renting an SS and see what you think. That might be more than enough car for you. |
09-30-2011, 09:55 AM | #19 | ||||
Petro-sexual
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The best suggestion I can offer (because I'm certainly no expert on anything) is to figure out where you want to be. If you're only looking for 700 horsepower, you don't need to do a fraction of what you were thinking. If you want 800 horsepower, you'll definately want to get into that shortblock and get at the valvetrain and heads, and probably upgrade the SC and intercooling system. If you're looking for more, you're certainly looking at probably going down the road of a completely re-worked long block and SC. There are many Sponsors here that can help you with a plan once you know where you want to go. I'd urge you to establish the goal, and seek out a Sponsor to help you get there Good luck and please keep us posted
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09-30-2011, 10:00 AM | #20 |
Drives: 2013 ZL1 IOM Vin #169 Join Date: Jan 2011
Location: Maryland
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Mod LSA if I was to choose. They have just placed so much research into this project, plus the caddie has been using the LSA for awhile now. So
I would stay with the LSA and do whatever you can afford up to the capabilites that the LZ1 can handle.
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Last edited by Z4me; 09-30-2011 at 10:31 AM. |
09-30-2011, 10:04 AM | #21 |
Petro-sexual
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I can't post the companies link because they're not a Sponsor, but I'll definately be looking into similar mods' for mine. They're all pretty simple and push that "little" 1900 to it's limit. I think they can pulley to 19 psi with their H/C package... They don't really have anything too much more special than our Sponsors, but I see they just make LSA one of their top focuses.
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09-30-2011, 11:39 AM | #22 |
A GM nut-swinger!
Drives: A Car Join Date: May 2009
Location: United Kingdom
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To be on the safe side while you have the bottom end apart go with good ARP bolts. I would also do ARP head bolts with MLS gaskets. Boosted motors put more stress on parts than a equal powed NA motor. Do it right the first time and save yourself the trouble later down the road. You notice the LS9 have larger head bolts with only 80hp more than the LSA.
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09-30-2011, 12:57 PM | #23 |
Camaro➎ moderator
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That's still more expensive than just modding the LSA to have the same power.
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09-30-2011, 06:21 PM | #24 |
Moderator.ca
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I couldn't find the exact page either, at first I had the same thought you did ... that they have since fixed the page. But I went looking through their site (to try and find the page he tried to link to) and every engine package they have for the 6.2L V8s (LS3, L99, LSA, LS9) describes them as '378 CID'. Whoopsie.
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09-30-2011, 06:40 PM | #25 |
Drives: Camaro 2010 SS LS7 427ci Join Date: Nov 2009
Location: Miami
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Biggfoot
Stick with the LSA and do your mods. I transplanted an LS7, race cam, 305cc intake chamber Mast heads, FAST intake, ZR1 injectors and all forged internals, mahle pistons 11.4:1 compression. The motor makes almost 600 lbs of torque @ 630 hp. The trouble with all that power is you start breaking, drive train parts, suspension parts and the like. My car runs great however foot to the floor shifting through four gears, lots of stuff breaks. GM did good job of upgrading the drive line in the ZL 1 however that might require more upgrades still. The LS 7 block and forged internals are bulletproof and the cylinder walls are more than strong enough for a street car. Save some money in the budget to replace broken drivetrain components. |
09-30-2011, 07:49 PM | #26 |
Drives: Camaro's, always have, always will. Join Date: Oct 2010
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When I purchase my ZL1 I won't touch a thing. I believe as designed it will be The Mother Of All Camaro's. Just my .02 cents. It will be a piece of living history as is. After watching clip 1 and clip 2 I was physically moved and shaken by it's prowess. This ride is more than enough for most and plenty enough for me. Why attempt to alter perfection? Just my thoughts from an old guys perspective.
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09-30-2011, 08:02 PM | #27 | |
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10-01-2011, 08:34 AM | #28 |
Drives: 2011 denali hd2500 Join Date: Sep 2011
Location: clarkston, mi
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I own a chassis dyno company and have watched several customers have us give them more horsepower because they feel they need the big number because they know somebody else has it. When in the long run they find out that it is way more than they can handle and scare themselves at different times in dry and wet weather. They come in the shop and we ask how they like thier car and they reply they sold it because of what happened when driving. So my advice to everyone who has never had this much power, drive it quite a bit and in dry and wet and make sure YOUR ABILITY can stay ahead of it so you don't go and kill yourself or somebody else. Theres a big difference between drag racing horsepower and street driving horsepower. Just my two cents.
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