High compression LS2 Supercharged
Thread Starter
Racer
Joined: Oct 2021
Posts: 254
Likes: 22
From: NY
High compression LS2 Supercharged
Comparing a C6 LS2 with almost 11:1 compression and a Magnuson Supercharger with a smaller pulley to a stock C6 ZR1.
How dependable would the LS2 be? I like to drive aggressively!!!
How dependable would the LS2 be? I like to drive aggressively!!!
Le Mans Master
Joined: Dec 2005
Posts: 6,995
Likes: 1,680
From: Southeast TX
High compression, PD blower, and E85 are a heavenly match. E85 isn't totally necessary, but damn, it's all manner of goodness with a PD blower. You'll probably need to upgrade your fuel system anyway. Doesn't cost much more to go flex fuel. Set up properly, your tune will adjust whether you're running straight dino fuel, E85, or anything in between. With a mild blower cam and bolt ons, you'll leave quite a few ZR1's looking at your tail lights. All of the stock ones for sure.
Instructor
Joined: Mar 2019
Posts: 174
Likes: 18
From: Sacramento
Anything is reliable if it's tuned for the correct gas. You can also throw some LS9 head gaskets on there to lower the compression slightly. But with that compression, Id definitely tune it before I run it.
Safety Car
Joined: May 2016
Posts: 4,616
Likes: 1,808
From: Erlanger, Kentucky
Lowering the CR helps especially if you want to run more boost. I think the stock Heartbeat is about 6 psi of boost which is pretty mild and very safe for an LS2 (again with proper tuning). I think the stock LS9 is about 10 or 11 psi of boost so works better with a lower CR.
But the LS2 is a stout engine and will hold up all day long at power levels that the supercharger is going to make.
