The embargo ended at midnight so I put this together for you guys.

All the tech on the new LS9!


http://www.popularhotrodding.com/index.html

Enjoy

 

I guess all the Cobra haters who always said, "If GM put a supercharger on an LSX" will finally get their wish

 

Thats ok.. Gm still out powers them without the supercharger

 

They bounce back and forth saying ZL1 and ZR1 , which is it?! ---

 

ZR1 is the Corvette it is going into. ZL1 might just be the RPO code for the engine?

 

I think your right, but they way they worded it is STILL confusing heheheh.

"The LS9 engine was developed to motivate GM's latest supercar, the ZL1 Corvette and, if they hoped to surpass the world-class performance of the Z06, GM knew they would need something special under the hood."

"This way, no huge bulge will be needed on the new ZL1 'Vette." ---

 

Isn't the RPO for the engine LS9.

Was Z28 ever a RPO on the 4th gen?

 

So since I keep hearing that the LS9 is based on the LS3 + S/C, can somebody give me a rundown of the differences that would still exist for a "yeah but I could slap a supercharger on my LS3 and it'd be just as good as an LS9" argument that will inevitably occur?

 

Hmm... I just know I keep hearing that the LS3 should make for a much better candidate for F/I than the LS1 and LS2 ever did.

 

LS9 = Warranty
LS3 + S/C = No warranty

 

Increased oil capacity, oil squirters, forged titanium pistons (9.1:1 CR), obviously the cam will be different... Not sure what else?

 

ZL1 would be nice for the Camaro

ZR1 is the Corvette

 

The ONE error saying ZL1 is a mistake.. it was late and I was trying to get it in so that we could have it up this morning.

Will be fixed, sorry

And it's ZR1... like the title.

 

Titanium rods.. NOT pistons..

 

I believe they (Z28, Z71, etc) did start out as RPO codes. I'm not sure if Z28 was still the RPO code at the end of the run. I would think it would be. I know "LS9" is the RPO code for that engine. If someone has any more info on this, feel free to chime in. I'd like to know more about it too. I doubt the RPO coding process has changed much from the time I worked for GM/Delphi but I may be wrong.