Stock LS3 HP Capability
Thread Starter
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
Stock LS3 HP Capability
I am about to install twin turbos on my 08 LS3 Coupe. I want a complete pump gas tune with no meth at 600rwhp which I dont think should be much of a problem. But then I want a C16 tune and want to know what the limit should be on HP to keep the motor together. I have seen numerous people with LS2 and LS3 motors running pump gas and meth making 750rwhp. So I am looking to try to make 800+rwhp on a full C16 tune and if need be Meth injection as well. I have not seen anyone atleast post up that they are running a full C16 tune and what power they are making. Anyone have any input on what the stock pistons, rods, and crank can handle?
Melting Slicks
Joined: Dec 2002
Posts: 2,897
Likes: 0
From: Lone Star State
It's all in the tune. There are several high hp guy's running around but keep in mind that the rod bolts and cast pistons are the week links in the stock bottoms and once they go then normally it gets the block as well. But then again, some have 1000's of miles and never had any problems.
Mr. Big is an example but his c6 is tuned by one of the best!!!!
Mr. Big is an example but his c6 is tuned by one of the best!!!!
Thread Starter
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
It's all in the tune. There are several high hp guy's running around but keep in mind that the rod bolts and cast pistons are the week links in the stock bottoms and once they go then normally it gets the block as well. But then again, some have 1000's of miles and never had any problems.
Mr. Big is an example but his c6 is tuned by one of the best!!!!
Mr. Big is an example but his c6 is tuned by one of the best!!!!
Well I know that part. I am just trying to figure out where I need to stay under with a Perfect Dead On Tune before my pistons and rods give up the ghost.
Drifting
Joined: Oct 2006
Posts: 1,984
Likes: 16
From: Amityville New York
I am about to install twin turbos on my 08 LS3 Coupe. I want a complete pump gas tune with no meth at 600rwhp which I dont think should be much of a problem. But then I want a C16 tune and want to know what the limit should be on HP to keep the motor together. I have seen numerous people with LS2 and LS3 motors running pump gas and meth making 750rwhp. So I am looking to try to make 800+rwhp on a full C16 tune and if need be Meth injection as well. I have not seen anyone atleast post up that they are running a full C16 tune and what power they are making. Anyone have any input on what the stock pistons, rods, and crank can handle?
Burning Brakes
Joined: Aug 2009
Posts: 841
Likes: 0
From: DFW Texas
The piston are forged so it can handle some boost but the rod bolts are weak, I would be scared to try and make over 750rwhp, that is pushing it to the limit and its not the motor that will be the big problem but if it broke while hitting top speed and oil blow on the tires, then you will break instead of only the car.
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Melting Slicks
Joined: Nov 2007
Posts: 2,240
Likes: 51
From: South Carolina
The piston are forged so it can handle some boost but the rod bolts are weak, I would be scared to try and make over 750rwhp, that is pushing it to the limit and its not the motor that will be the big problem but if it broke while hitting top speed and oil blow on the tires, then you will break instead of only the car.
Drifting
Joined: Aug 2009
Posts: 1,412
Likes: 0
From: Texas 1,002rwhp/928rwtq
St. Jude Donor '09-'10
Have Taylor do your work. There is no one else around that I would trust more. Good luck with your project.
Thread Starter
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
That's what I was thinking. Wish they were forged.
Very cool, Can't wait to see it fully finished and see some results from it.
No yet - we made a bunch of changes; hood, smaller pulley, a Flip Drive from Cartek and new wheels. If all goes well, it will be on the dyno today or tomorrow for final tuning, then I will let Taylor drive it around for a week. This way he can work out any gremlins that may arise before I pick it up.
Have Taylor do your work. There is no one else around that I would trust more. Good luck with your project.
Have Taylor do your work. There is no one else around that I would trust more. Good luck with your project.
Thread Starter
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
The piston are forged so it can handle some boost but the rod bolts are weak, I would be scared to try and make over 750rwhp, that is pushing it to the limit and its not the motor that will be the big problem but if it broke while hitting top speed and oil blow on the tires, then you will break instead of only the car.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
I've been at 672+ since july on my LS3. So far, so good. If wanting more, I'd be inclined to upgrade at least rod bolts and maybe pistons. Upgrading now would be cheap compared to trying to piece together a shattered engine. I know things have been pushed past this successfully, but I also know a motor or two hasn't lasted long at these levels. As pointed out earlier in this thread, a good tune is very important. You need to be prepared to spend a little money if you're playing in this ballpark.
