Great thread. We are going to need a sound bite when its done. Maybe line the HEMI up with BB and see what happens.
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Great thread. We are going to need a sound bite when its done. Maybe line the HEMI up with BB and see what happens.
God willing you will break your rear window when accelerating!
So how much horsepower does this engine make?
And more importantly... will there be a dyno chart so we can see the torque/power curves at the wheels?
It makes 470hp peak and 470lb ft peak. I have no idea at what rpms they occur. I'm sure they are going to tell me no driving over 50 mph for 1000 miles or some other thing until the motor is brokeen in. I will put it on a dyno if I can get time at the shop Sweat Pea went to. I think it's not too far from where I work. I'd love to see the rear wheel numbers!
The Wrangler's drivetrain typically causes about 30% loss on dynos, so don't be shocked/confused if that 470 hp/tq turns into only about 330 hp/tq on the dyno.
This dyno chart of a 5.7 Hemi Wrangler shows about 27% drivetrain loss from the rated 372 hp:
http://www.jk-forum.com/forums/attac...9&d=1244913655
If you have a similar 27% loss, that would put you around 345 hp/tq at the wheels.
The biggest problem is the automatic transmission-- the torque converter is energy sink...
You need a road trip to get that puppy broken in. The dyno is in hawthorne nj. We can finally meet and strap it down.
Maybe even get snarf up here with the turbo to do same day dynos. Everyones gear ratios are off now tho. JG. 4.88 BB 4.56
Baumann, your truck needs a name....
I've heard that the JK with auto trans is one of (if not the) most parasitic drive trains out there. The only trucks that I've seen making 400hp at the wheels are not naturally aspirated. Before making the swap I spoke with Arrington Performance and Southern Hot Rod who both can get you to 400hp at the wheels with some limited warranty. My craziness ends at whatever the 392 can produce at the wheels.