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Old 02-12-2012, 12:59 PM   #1
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Could u basically say the ZL1 comes with a Ls9 motor?

I know it isn't but it's basically based off of it... Lol
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Old 02-12-2012, 01:03 PM   #2
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No...The LS9 is distinctly different from the LSA.

If you were hoping to show off...you could say it has the same engine as the Corvette ZR1...technically, that's true...they're the same idea: insane output, supercharged 6.2L V8...But don't call it something it's not. The LS9 is a marvel.

Though...I've found that every time I explain the engine in "this car I'm getting" as a 6.2L supercharged V8 putting out 580 hp....it leaves many "regular folk" speechless. (You could even round up to 600hp, if you wanted )
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Old 02-12-2012, 01:06 PM   #3
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Quote:
Originally Posted by Dragoneye View Post
No...The LS9 is distinctly different from the LSA.

If you were hoping to show off...you could say it has the same engine as the Corvette ZR1...technically, that's true...they're the same idea: insane output, supercharged 6.2L V8...But don't call it something it's not. The LS9 is a marvel.

Though...I've found that every time I explain the engine in "this car I'm getting" as a 6.2L supercharged V8 putting out 580 hp....it leaves many "regular folk" speechless. (You could even round up to 600hp, if you wanted )
So basically you could get away with sugar coating it ? (; lol haha
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Old 02-12-2012, 02:01 PM   #4
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It's "basic"ally an LS3.
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Old 02-12-2012, 02:14 PM   #5
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Old 02-12-2012, 02:20 PM   #6
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Its just as much as an LS9 as it is an LS3 lol
Its an LSA, and an LSA is one badass engine. Show the LSA off proudly
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Old 02-12-2012, 02:57 PM   #7
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Is an Ss basically a zl1? No.
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Old 02-12-2012, 03:00 PM   #8
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Drake... you never cease to amaze me bud.


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Old 02-12-2012, 03:40 PM   #9
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Similar by virtue of being a supercharged 6.2 assembly line engine versus a 6.2 supercharged hand built engine. Another 50 horses and a few exotic forged parts and the LSA would be closer. Still it will be a lot of fun to drive.
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Old 02-12-2012, 04:10 PM   #10
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An LSA is an LS9 in the same way that a Camaro is a G8. That is to say, it isn't.
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Old 02-12-2012, 04:12 PM   #11
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An LSA is an LS9 in the same way that a Camaro is a G8. That is to say, it isn't.
Wow really?
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Old 02-12-2012, 04:14 PM   #12
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An LSA is an LS9 in the same way that a Camaro is a G8. That is to say, it isn't.
Yeah, they are BOTH KICKASS!!
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Old 02-12-2012, 04:55 PM   #13
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No. They are not the same engine. There are many, many differences that make the ls9 a much more potent engine. The LSA is great enough, no reason to try to make it out as an ls9.
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Old 02-12-2012, 05:25 PM   #14
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okay one more time.

LS3 n/a 6.2L 10.47 compression
nodular iron crank
poweder metal rods
Hypereutectic pistons

LSA 6.2L
eaton TVS 1.9L
9.0 compression
forged crank
powerder metal rods
hypereutectic pistons

LS9
eaton TVS 2.3L
9.1 compression
forged crank
titanium rods
forged pistons

they are all different engines really even though the block, bore and stroke are the same. I hink the heads are the same as well. they all have key differences. Cams are different. the LS9 with titainum rods, forged pistons, 6600rpm redline is by far the best of the bunch and the most expensive. go figure.

that being said if you price the crate motors like I have been for doing an older camaro resto mod it would be hard on any kind of rational budget to entertain the price of an LS9.
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Old 02-12-2012, 05:26 PM   #15
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I believe I have seen magazine reviews even say (Wrongly) a time or two that it's the same engine as the supercharged vette. So, some are making that "leap" albeit wrong. Close enough for me however, because it would cost a whole lot more to get that motor.
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Old 02-12-2012, 05:32 PM   #16
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okay one more time.

LS3 n/a 6.2L 10.47 compression
nodular iron crank
poweder metal rods
Hypereutectic pistons

LSA 6.2L
eaton TVS 1.9L
9.0 compression
forged crank
powerder metal rods
hypereutectic pistons

LS9
eaton TVS 2.3L
9.1 compression
forged crank
titanium rods
forged pistons

they are all different engines really even though the block, bore and stroke are the same. I hink the heads are the same as well. they all have key differences. Cams are different. the LS9 with titainum rods, forged pistons, 6600rpm redline is by far the best of the bunch and the most expensive. go figure.

that being said if you price the crate motors like I have been for doing an older camaro resto mod it would be hard on any kind of rational budget to entertain the price of an LS9.
IIRC the heads and cam are different from LS9 to LSA.

If I were building a track car I would probably start with an ls3, run a blue-printed, forged reciprocating assembly on an LSA crank with a custom ground cam and built heads. With the price difference between an ls3 and ls9 crate motor you could build an absolutely insane LS3.
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Old 02-12-2012, 06:25 PM   #17
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Originally Posted by 8cd03gro View Post
IIRC the heads and cam are different from LS9 to LSA.

If I were building a track car I would probably start with an ls3, run a blue-printed, forged reciprocating assembly on an LSA crank with a custom ground cam and built heads. With the price difference between an ls3 and ls9 crate motor you could build an absolutely insane LS3.
I know the cams are different I was having a hard time verifity there was any difference on the heads.

sounds like they are a different alloy, different valves, different deck.

Kind of really illustrates how different an LSA and LS9 are.

they have the block and maybe the crank in common but I bet even the crank could be different.
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Old 02-12-2012, 06:50 PM   #18
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wow thanks for the info guys... i didnt realize there was a big difference in the two.. now i know!
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Old 02-12-2012, 06:56 PM   #19
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what does LSA stand for.
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Old 02-12-2012, 07:06 PM   #20
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what does LSA stand for.
It's just a designation.

This is the LS-series of V8 Engines from GM. They all are named LS-something.

1, 2, 3, 4, 6, 7 & 9 are all taken...I don't know why they chose to avoid 5 and 8...but A it is!
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Old 02-12-2012, 07:09 PM   #21
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I know the cams are different I was having a hard time verifity there was any difference on the heads.

sounds like they are a different alloy, different valves, different deck.

Kind of really illustrates how different an LSA and LS9 are.

they have the block and maybe the crank in common but I bet even the crank could be different.
The LS9 crank is probably balanced to a tighter tolerance, but I'm not sure. I also assume that beyond the larger displacement blower, the LS9 likely uses a larger, more efficient intercooler and different exhaust manifolds. The difference between the ls9 and lsa really show how much stronger an OEM 63Xhp engine must be. It's probably not very hard to make such numbers on an LSA, but to take a constant beating at those power levels on a safe enough tune to ship in a stock car you need one hell of a potent combo.
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Old 02-12-2012, 07:13 PM   #22
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What Clarkson yells in the mountains pretty much sums up the LS9.

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Old 02-12-2012, 07:33 PM   #23
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The LS9 crank is probably balanced to a tighter tolerance, but I'm not sure. I also assume that beyond the larger displacement blower, the LS9 likely uses a larger, more efficient intercooler and different exhaust manifolds. The difference between the ls9 and lsa really show how much stronger an OEM 63Xhp engine must be. It's probably not very hard to make such numbers on an LSA, but to take a constant beating at those power levels on a safe enough tune to ship in a stock car you need one hell of a potent combo.
It does use a different intercooler. some fo the changes though were to increase RPM. which helps with 0-60 and top speed. the zr1 would not break 200 with its current gearing at 6200rpm redline.

you would not need titainum rods to make 600hp+ and stay at the 6200rpm redline.
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Old 02-12-2012, 08:14 PM   #24
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The LS9 engine was specifically designed to handle 800 BHP right from the jump. Even the block and cylinder heads are made of a different aluminum alloy that contributes to its durability. We have built several ZR1s that made just over 700 wheel HP on stock bottom ends....the blower actually ran out of steam!

Interesting trivia......the extra power the ZL1 LSA produces over the prior LSA is in the blower. Eaton who manufactures the 1900 and 2300 TVS rotors signiificantly improved the sealing of the supercharger therefore improving its efficiency. The LSA in the 2012 CTSV makes the same power but GM decided not to go through all the remarketing for the change....same motors...

Camshaft, cylinders heads and even the calibrations are the same. We just compared the calibration data from my ZL to the current CTSV file and there are no secrets!

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Old 02-12-2012, 08:17 PM   #25
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Quote:
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It's just a designation.

This is the LS-series of V8 Engines from GM. They all are named LS-something.

1, 2, 3, 4, 6, 7 & 9 are all taken...I don't know why they chose to avoid 5 and 8...but A it is!
I think LS8 was going to be used for a supercharged truck engine that has since been scraped. As for LS5 ...

Also, it should be noted that there are 'LS engines' which don't techincally have an 'LS' designation, such as the L76, L92, L98, and L99, but are considered by all to be part of the LS family.
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