Z06 with a roots blower
Safety Car
Joined: May 2016
Posts: 4,578
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From: Erlanger, Kentucky
As long as you keep the boost low, running a blower on an LS7 should be fine. Both Magnuson and Edelbrok make blowers for the LS7. LS7 has thinner block walls around the cylinders so can't take as much boost as an LS3 or LS9.
I'm not sure what the safe limits for boost are on an LS7 but I would keep it at 7 psi or lower. Honestly, it wouldnt' take much boost to hit some high HP numbers. Even with just 5 psi, I would guess an LS7 with a stock cam would be at 700 crank HP.
I'm not sure what the safe limits for boost are on an LS7 but I would keep it at 7 psi or lower. Honestly, it wouldnt' take much boost to hit some high HP numbers. Even with just 5 psi, I would guess an LS7 with a stock cam would be at 700 crank HP.
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Joined: Nov 2017
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You can do it, but odds are if the motor is built, the compression is probably increased. In cylinder combustion temps are already higher at 11:1. Not good for boost. You would only be able to run about 3-5 psi most likely on 93 octane with low timing. Hard on exhaust valves if they aren't Inconel. Which isn't worth it for the expense of adding a blower, fuel system, cooling mods, etc. There's also very little room for error with the tune.
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Joined: Dec 2025
Posts: 148
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You can do it, but odds are if the motor is built, the compression is probably increased. In cylinder combustion temps are already higher at 11:1. Not good for boost. You would only be able to run about 3-5 psi most likely on 93 octane with low timing. Hard on exhaust valves if they aren't Inconel. Which isn't worth it for the expense of adding a blower, fuel system, cooling mods, etc. There's also very little room for error with the tune.
