Gen III Hemi

I don't think that calculator is right. What's his trap speed? Challenger 1320 is just a 6.4 Scat Pack with all the drag racing extras from the Demon, all SRT 6.4s are factory rated 475-485 HP net at the crank. I can't see how an underdrive crank pulley and E85 conversion would gain ~150 HP. Big reason they can run such quick ETs is the gear reduction and lightning-quick shifts from the 8-speed trans.

With that said, a big cam, long tube headers into cat-less exhaust and optimized non-emissions tune will have a 6.4L pu
I don't think that calculator is right. What's his trap speed? Challenger 1320 is just a 6.4 Scat Pack with all the drag racing extras from the Demon, all SRT 6.4s are factory rated 475-485 HP net at the crank. I can't see how an underdrive crank pulley and E85 conversion would gain ~150 HP. Big reason they can run such quick ETs is the gear reduction and lightning-quick shifts from the 8-speed trans.

With that said, a big cam, long tube headers into cat-less exhaust and optimized non-emissions tune will have a 6.4L pushing 600 HP at the crank.

He Went 7.00 in the 8th, 11.00 in the 1/4 at 124 mph. 4350 lbs with him in the car. I dont have the time slip with me. But he did it in Montgomery, Al. Was 53 deg and 125 ft DA. We believe in Gulfport with the great air that they have in the wintertime it'll go 10.90. We've been in Gulfport when the DA was -1450 ft.