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-   -   horse power (http://www.jeepgarage.org/f5/horse-power-660.html)

scottsjeep05 06-17-2009 09:18 AM

horse power
 
Since i am a former Ford guy, can anyone please explain to me why the 5.7 in the Jeep is rated at 330 HP and the 5.7 in the Dodge's is 345 HP?????

Matt 06-17-2009 09:21 AM

Re: horse power
 
EDIT: reading > me

LTrainGC 06-17-2009 10:49 AM

Re: horse power
 
In the Jeep the Hemi puts down 330/375

In the 300C/Charger it puts down 340/390

In the Ram is puts down 345/375

I'm pretty sure it is just PCM programming that changes the numbers up. Might be a better flowing intake/exhaust on the 300C/Charger too.

Dylans3960ccs 06-17-2009 12:18 PM

Re: horse power
 
do they have different trannys?

scottsjeep05 06-17-2009 03:04 PM

Re: horse power
 
doesn't matter. when they say 330 thats at the engine not the rear wheels.

Dylans3960ccs 06-17-2009 03:05 PM

Re: horse power
 
duh.

scottsjeep05 06-17-2009 03:11 PM

Re: horse power
 
or in my case all the wheels

Dylans3960ccs 06-17-2009 03:19 PM

Re: horse power
 
Hahaha my car makes more power at each wheel than yours. lol

Scottina06 06-17-2009 03:42 PM

Re: horse power
 
dream on school boy

mzh29 06-17-2009 03:46 PM

Re: horse power
 
Quote:

Originally Posted by Scottina06 (Post 15282)
dream on school boy


Scott did you install that manifold yet?

AdamJ 06-20-2009 03:01 PM

Re: horse power
 
The differences in peak power can be accounted for in multiple ways, but primarily it is because the engineers have tuned each engine to produce a particular power range and torque curve.

The tune on the Ram probably maximizes low-end torque, while the hp probably falls down alot sooner after peak, where as the Jeep probably has the curve pushed a bit more into the middle letting the hp run out a few hundred rpms more and the LX tune probably goes even further into the RPMs.

Peak hp/tq don't mean nearly as much as how much total power and torque you have under the curves and where its placed in comparison to your transmissions gearing...

Scottina06 06-20-2009 03:19 PM

Re: horse power
 
Quote:

Originally Posted by mzh29 (Post 15285)
Scott did you install that manifold yet?

yeah....been in for a couple weeks


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