GMPP releases LS9 Supercharger Kit for Camaro LS3 (and modified L99) Motor !!

[Caliman93230]

how competitively priced is ls9 s/c complete kit any way. Pirce is what really matters.

[GTAHVIT]

Originally Posted by MacTruck

I can get a OEM supercharger from Toyota backed with full warranty for my tundra so I don't see why GM can't do the same.

I don't know what to say. I'm not defending GM. I'm just saying that this kit doesn't have a warranty.

If as a consumer that is unacceptable, then don't buy it.

I wouldn't fault anyone who walked away from this supercharger because it will most likely void the powertrain warranty.

For a myriad of reasons, GM is not willing to warranty the LS3 with a supercharger on it. Aftermarket or otherwise.

Maybe they will change that, based on the feedback from the consumer. But as of now it is what it is.

[GTAHVIT]

Originally Posted by SonnyakaPig

Even if it's sold as an "off-road" kit, it's not coming with any warning that says "do not install on stock LS3/L99." And everyone (including GM) knows that it can be installed on stock LS3/L99.

GM may not warranty the engine that the blower is installed on, but it sure seems that GM is marketing the blower to average hp-seeking owners -- people that don't want more than 550 rwhp.

They are selling the blower at a pretty competitive price and they are releasing the blower now that the Camaro has been a big success. They know the bulk of the purchasers of the LS9 blowers will be people who want some boost but don't want to or can't afford to purchase all the other necessary parts when the boost is turned up.

That's how it is with all of the supercharger manufacturers: Make a high quality product that can be installed on the stock engine/trans/rear end. Going back to my original point, it's a nice thing to see GM selling their LS9 blower to the masses because it points to them believing their kit will work (at low to moderate boost) on stock Camaros.

This.

[JProberts]

"Maybe they will change that, based on the feedback from the consumer".


And that quote is the part of this whole thing I hope will change. It seems to me that if GM wants to one up the other SC manufacturers and secure a ton of business from guys like me that want a basic set-up with maybe an upgraded/aftermarket CAI and axle-back exhaust than the way to do that would be to honor their OEM drivetrain warranty.

If they have done all the testing and know the kit to be reliable up to a certain HP than they really wouldn't be putting themselves out on a limb very much. I think as most people would attest that changeing the CAI or axle-back will not blow up you drivetrain.

I agree that GM would be crazy to warranty every SC application out there but they must find some common ground in order to get the business they desire in this SC market.

Bottom line to me is if they offer this SC with a canned tune they deem safe and limited mods, mods that in no way can affect drivetrain, than they should keep that warranty intact.

If you can keep your GM drivetrian warranty intact than I'm willing to bet 75% of the people adding these other manufacturers SC's would jump all over the GM SC instead.

If I get no more protection from GM than I do from the Maggie or Edelbrock than I will not get the GM version. What would be the advantage of the GM SC without the warranty? None that can see...am I missing something or just clueless about superchargers...ok I am clueless about this stuff but you get my point right?

[GTAHVIT]

Originally Posted by JProberts

"Maybe they will change that, based on the feedback from the consumer".


And that quote is the part of this whole thing I hope will change. It seems to me that if GM wants to one up the other SC manufacturers and secure a ton of business from guys like me that want a basic set-up with maybe an upgraded/aftermarket CAI and axle-back exhaust than the way to do that would be to honor their OEM drivetrain warranty.

If they have done all the testing and know the kit to be reliable up to a certain HP than they really wouldn't be putting themselves out on a limb very much. I think as most people would attest that changing the CAI or axle-back will not blow up you drivetrain.

I agree that GM would be crazy to warranty every SC application out there but they must find some common ground in order to get the business they desire in this SC market.

Bottom line to me is if they offer this SC with a canned tune they deem safe and limited mods, mods that in no way can affect drivetrain, than they should keep that warranty intact.

If you can keep your GM drivetrian warranty intact than I'm willing to bet 75% of the people adding these other manufacturers SC's would jump all over the GM SC instead.

If I get no more protection from GM than I do from the Maggie or Edelbrock than I will not get the GM version. What would be the advantage of the GM SC without the warranty? None that can see...am I missing something or just clueless about superchargers...ok I am clueless about this stuff but you get my point right?

You aren't clueless at all.

But keep this in mind. Even Maggie, procharger, Edlebrock, etc. won't give you a drive train warranty if you have ANY additional mods...

The difference between the LS9 blower and the aftermarket guys is GM will not give you any powertrain coverage regardless of additional mods. Where the aftermarket guys will, as long as there is nothing else other than their blower and their tune.

My point earlier in the thread is this: Most guys with blowers will add additional mods and hence won't have a warranty anyway. So unless you are only looking to have a supercharger, the tune that comes with it and NOTHING else, the LS9 blower is just as good an option as any other.

[JProberts]

Originally Posted by GTAHVIT

You aren't clueless at all.

But keep this in mind. Even Maggie, procharger, Edlebrock, etc. won't give you a drive train warranty if you have ANY additional mods...

The difference between the LS9 blower and the aftermarket guys is GM will not give you any powertrain coverage regardless of additional mods. Where the aftermarket guys will, as long as there is nothing else other than their blower and their tune.

My point earlier in the thread is this: Most guys with blowers will add additional mods and hence won't have a warranty anyway. So unless you are only looking to have a supercharger, the tune that comes with it and NOTHING else, the LS9 blower is just as good an option as any other.

Understood, so much to learn and figure out about this stuff. With everything I have learned it looks like I can get the best price and installation and tune with the TVS2300. In the end a cheap bastard like me will have to get the best bang for the buck!

Thanks

[SonnyakaPig]

Originally Posted by GTAHVIT

You aren't clueless at all.

But keep this in mind. Even Maggie, procharger, Edlebrock, etc. won't give you a drive train warranty if you have ANY additional mods...

The difference between the LS9 blower and the aftermarket guys is GM will not give you any powertrain coverage regardless of additional mods. Where the aftermarket guys will, as long as there is nothing else other than their blower and their tune.

My point earlier in the thread is this: Most guys with blowers will add additional mods and hence won't have a warranty anyway. So unless you are only looking to have a supercharger, the tune that comes with it and NOTHING else, the LS9 blower is just as good an option as any other.

What are your thoughts on the power-to-boost ratio for the LS9 blower on the LS3?

Doesn't the LS9 in the ZR1 push 10.5 psi? And if so, wouldn't the blower need to push the same amount of boost on the LS3 in the Camaro to achieve the 638 bhp? That would be approximately 542 rwhp.

I'm pretty sure you're getting those number with less boost.

Seems like this blower may not be so efficient...

[GTAHVIT]

Originally Posted by SonnyakaPig

What are your thoughts on the power-to-boost ratio for the LS9 blower on the LS3?

Doesn't the LS9 in the ZR1 push 10.5 psi? And if so, wouldn't the blower need to push the same amount of boost on the LS3 in the Camaro to achieve the 638 bhp? That would be approximately 542 rwhp.

I'm pretty sure you're getting those number with less boost.

Seems like this blower may not be so efficient...

I haven't done the math...

But my car is making that with a 6.5 boost pulley CAI, Tune and Full exhaust...

And the LS9 has a lower compression ratio so it can handle the added boost.

Maybe I missed it but I haven't seen what the boost is on the GMPP kit is. I guess the real question is, does the GMPP LS9 blower have the same pulley in the ZR1 or did they go with a bigger (lower boost) one....

if it is the same as the ZR1 that's not bad for a stock LS3 with no other mods....

Or am I confused....

[SonnyakaPig]

Originally Posted by GTAHVIT

I haven't done the math...

But my car is making that with a 6.5 boost pulley CAI, Tune and Full exhaust...

And the LS9 has a lower compression ratio so it can handle the added boost.

Maybe I missed it but I haven't seen what the boost is on the GMPP kit is. I guess the real question is, does the GMPP LS9 blower have the same pulley in the ZR1 or did they go with a bigger (lower boost) one....

if it is the same as the ZR1 that's not bad for a stock LS3 with no other mods....

Or am I confused....

No, I think everything you said made sense.

And you mentioned the compression ratio difference between the LS9 and LS3, which I forgot to mention.

And that is interesting too. Because the LS9, with it's forged internals and lower compression pistons, can handle higher boost than the LS3, it makes sense that the stock LS9 (as used in the ZR1) has a pulley that makes 10.5 psi.

But even at 10.5 psi, the LS9 makes 638 hp. Your car makes that with 4 pounds less boost.

So, does your higher, 10.7 compression ratio make that much of a difference from the LS9's lower compression?

I think what I'm getting at is perhaps the newer designed 2.3L-2.9L blowers that fit on the LS3 heads are more efficient than the LS9 blower. (Maybe I'm confused, because I imagine the LS9 blower is pretty current technology).

We will see as soon as some folks start getting them installed and tuned. Should be interesting. I am really curious to see if the LS9 blower makes as much power as the other blowers on the market.

[Caliman93230]

man I could have sworn I saw an lsx with a ls9 s/c but I don't remember where, but the question is who has done this s/c on a ls3

[EvolutioN]

Originally Posted by SonnyakaPig

No, I think everything you said made sense.

But even at 10.5 psi, the LS9 makes 638 hp. Your car makes that with 4 pounds less boost.

So, does your higher, 10.7 compression ratio make that much of a difference from the LS9's lower compression?

I think what I'm getting at is perhaps the newer designed 2.3L-2.9L blowers that fit on the LS3 heads are more efficient than the LS9 blower. (Maybe I'm confused, because I imagine the LS9 blower is pretty current technology).

It could also be related a variety of different things. As the LS3 cam's and heads were designed to push out more power without forced induction. In combination with higher compression stock. My guess is a lower level of boost in such a NA optimized setup will respond quicker at low boost etc..

Just my thoughts..
I am trying to remember back in the times when I was working on Jap cars, that NA cams on a turbo engine was an awesome combo.. just can't remember what engine it was, nor even the brand right now.. *getting old*

[Mr. Wyndham]

The blowers all use identical rotors. One may argue that the housing has an effect on efficiency...but the difference should be minimal. The purpose for designing the blower upside down like that was to clear the hood in both the Corvette and then they utilized that design for the CTS-V (would be my guess to save some $$).

As far as boost, it is safer to make boost with a lower compression ratio. Then all that air has a place to go, instead of being squeezed up into the same area designed for a N/A engine. But....lowering the compression ratio lowers power, so you need to make up for it in boost. The FI-specific cam and special heads on the LS9 must also be taken into account, as EvolutioN said. That engine was designed to make stupid power...SAFELY and under a full warranty. So things were 'tuned down'.

If this kit has the same pulley/boost as the ZR1, I'd say you're really pushing the engine's limits with it, and should be making well over 600 rwhp...

[Revo1]

Gotta love C5! The level of automotive knowledge some of you guys have is boggling.

Much of what I know about cars, I learned on C5

[GTAHVIT]

Originally Posted by Revo1

Gotta love C5! The level of automotive knowledge some of you guys have is boggling.

Much of what I know about cars, I learned on C5

Hey man. I'm right there with ya.

Every thing I know about the LS-3 I learned right here.