390 flywheel hp... so it's a theoretical number not an actual number. What's the actual number it put to the ground and on what kind of dyno? Dynapac's read high. Mine was done on a Mustang and (disclaimer: failing TQ and 35" tires) it put a little over 180 to the ground, but it's not made for high revving power like the Hemi. I have a hard time believing an intake and exhaust would result in a 45hp gain without seeing it.

 

Seems silver eagle got his numbers turned around a bit since his first post on the subject.


https://dodgeforum.com/m_190813/mpag.../tm.htm#190813

Honest mistake.........[sm=bustedsign.gif]

No harm no foul.

 

My 04 stock Hemi Sport while can't 'light em up' like my Chevelle can (large plumes of smoke), but it will spin them easily. Surprised me. I was at a stop light the 2nd day I had the truck and just floored it when green. Spun the tire (non posi) and scared the hell out of the guy next to me. I don't see why you should have a problem spinning it either.

Chris

 

I have a print out but I don't know how to put it in the computer. The horse power is at the engine. They said the lose of hp was from the transfer case.

 

They can't tell you what it is at the flywheel unless they pull the engine and put it on an engine dyno, they can only guess. The loss isn't only due to the transfer case either, it's the transmission, transfer case, U-joints, wheel bearings, differential, all the mass of the wheels, tires, driveshaft, axleshafts, etc. According to somebody up a few posts stock Hemi's are putting down in the 275 range. Chrysler did research in the exhaust and intake department. I honestly do not believe that an intake or exhaust will net you more than a couple of HP on a new vehicle. Older ones with crappy designs, sure, but not new ones.