Thread: Modified Viper ACR at VIR

Took a little trip down to VIR on Monday and got some great footage of this Viper ACR. Have more coming over the next couple days. The owner was very kind and even gave me a ride in the car around the track. The car was putting out 680HP and 705 ft/lbs of torque. What a beast!

Do you know what they did to get the extra power? i am interested.

Originally Posted by GCXB

Do you know what they did to get the extra power? i am interested.

I don't know what specifically was done, but as a Gen IV owner I can tell you that 680 hp (flywheel) can be achieved through a full exhaust and intake (which I see in the pics). Pretty easy. Even at 680 rwhp....just add ported manifold, ported heads, VENOM controller, and you'd basically be there (with a optimistic dyno).

Originally Posted by GCXB

Do you know what they did to get the extra power? i am interested.

He said he put headers on it and a tune. He mentioned a few other mods that I can't remember. It was running race gas but I'm pretty sure all ACRs do. That power he quoted was at the flywheel, not at the wheels.

The Viper ACR would just about have to be my favorite car of all time. Such beauty and power!