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2009 CTS-V
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68 Posts
Discussion Starter #1
Is anyone considering doing this, and how expensive would it be? The 2.3 L unit would move a bit more than 20% more air than our 1.9L unit holding pulley size constant. It just looks like folks are running into diminishing returns with cranking up the boost with the stock supercharger, and I wonder if running a larger unit would produce such boost levels (15+ psi) more efficiently.

Some of the GT500 guys are putting our 1.9L SC on their cars (with a 5.4L engine) and getting good results, so I wonder if a similar approach would work for us?

Any thoughts/plans?
 

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2009 CTS-V
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68 Posts
Discussion Starter #3
LSA uses a 1.9L supercharger (Eaton R1900), LS9 uses a 2.3L supercharger (Eaton R2300), but I can't find prices for them.
 

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Premium Member
2009 CTS-V Black/Black, manual
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1,371 Posts
^^^ Good question - I'm pretty sure I saw in another thread, that the OEM v2 blower costs about $1500.00, so I would imagine that the ZR1 blower would run some amount more than that - maybe close to $2 grand.

Ouchy !

Rob
 

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2009 CTS-V
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68 Posts
Discussion Starter #6
Not cheap, to be sure. As it is, though, you have to be without your car for quite some time (several have quoted five days to me) to have the blower snout removed, sent to someone who can press the pulley off, replace and pin the new pulley, then get the snout back to the shop.

If you had a ZR1 blower, even if you wanted to change the pulley on that, it could be done before the car was dropped off, expediting the process.

Also, let's say that a hypothetical shop that did this sort of work also worked on dozens of other types of cars (some of which, like the GT500, have owners that might like to swap for our blower). Then perhaps our Eaton R1900 could then be sold to them or someone else to recoup some of the $$.
 

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2009 CTS-V
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68 Posts
Discussion Starter #9
That's the $68k question, and one which pretty much guarantees that when I mod, I'll be sticking to worry free mods first (intake, exhaust, tune). Besides, I'm curious what the conservative mods will do for the car by themselves (without boost augmentation).
 

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451 Posts
Would the replacement of the LSA with the LS9 supercharger void any V2 warranties?
So, let's think through this instead of asking, it's a fun mental exercise.

First, remember that it is against the law for GM to void your vehicular warranty in its entirety. Anyone that says otherwise (including GM) is plain wrong. The way the law works when it comes to modifications is: the auto maker is forced to prove that the modification you made is directly responsible for whatever is broken. If they manage to do that, they can only deny that specific warranty claim. They can NOT void the entire warranty.

Keep that in mind.

Now, let's move to swapping the supercharger. You're changing an integral part of the LSA motor with another part. Regardless of whether it's a GM part or not, you're making a modification. And, I'll bet a dollar that swapping the supercharger will also require a PCM reflash.

Hm.

You've just added more pressure to the engine, and you've completely reflashed the PCM. These are potentially very significant modifications that can have an effect on all parts of the power train. So let's imagine that after you get that done, something in your engine breaks. It won't be too difficult for your dealer to convince the powers that be, that the new supercharger and the computer reflash contributed to the problem (even if they didn't).

So. No. It won't "void your warranty" because that's illegal. But it will seriously impact how much warranty work you can get done on your power train. Unless you get a cool dealer that'll look the other way.

jas
 

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crushing Vs with my Wurm
2013 GT500 - 700+ HP
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12,266 Posts
So, let's think through this instead of asking, it's a fun mental exercise.

First, remember that it is against the law for GM to void your vehicular warranty in its entirety. Anyone that says otherwise (including GM) is plain wrong. The way the law works when it comes to modifications is: the auto maker is forced to prove that the modification you made is directly responsible for whatever is broken. If they manage to do that, they can only deny that specific warranty claim. They can NOT void the entire warranty.

Keep that in mind.

Now, let's move to swapping the supercharger. You're changing an integral part of the LSA motor with another part. Regardless of whether it's a GM part or not, you're making a modification. And, I'll bet a dollar that swapping the supercharger will also require a PCM reflash.

Hm.

You've just added more pressure to the engine, and you've completely reflashed the PCM. These are potentially very significant modifications that can have an effect on all parts of the power train. So let's imagine that after you get that done, something in your engine breaks. It won't be too difficult for your dealer to convince the powers that be, that the new supercharger and the computer reflash contributed to the problem (even if they didn't).

So. No. It won't "void your warranty" because that's illegal. But it will seriously impact how much warranty work you can get done on your power train. Unless you get a cool dealer that'll look the other way.

jas
I suspect MAF will need to be larger, and youre gonna need to move that air after its ingested, meaning larger exhaust. Plus a remap like jas said.


F
 

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2009 CTS-V , 2010 SRX 2.8T
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3,085 Posts
^ Thats the big guestion. I'm hoping that if you just slap it on as a straight swap that the increased boost pressure will just bump up the hp 50-60hp....Either way all that doesnt mean anything until the fuel issue is cleared up
 

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11v,2 09 v's,2 05 v's,5 GTM supercars,viper,volt,2012 karma
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The swap will be a big one. I will be eventually doing the swap. Im just short on time to try it....
 
All of them
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Lindsay,
Would the replacement of the LSA with the LS9 supercharger void any V2 warranties? What would be the labor hours and cost for installation?
Warranty is such a grey area. as mentioned by jvp it is "illegal" for a GM dealer to deny a warranty claim over an aftermarket or performance part as long as it did not directly cause the failure. with that said you should hear the horror stories I hear from customers around the country. I have a number of guys (more than one mind you) that have had to argue with a dealer to have a diff replaced under warranty just because they have a (insert brand here) exhaust. We are very mod freindly here at Lindsay....
 
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