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Old 06-17-2009, 09:18 AM
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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?????
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Old 06-17-2009, 09:21 AM
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Re: horse power

EDIT: reading > me
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Old 06-17-2009, 10:49 AM
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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.
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Old 06-17-2009, 12:18 PM
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Re: horse power

do they have different trannys?
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Old 06-17-2009, 03:04 PM
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Re: horse power

doesn't matter. when they say 330 thats at the engine not the rear wheels.
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Old 06-17-2009, 03:05 PM
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Re: horse power

duh.
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Old 06-17-2009, 03:11 PM
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Re: horse power

or in my case all the wheels
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Old 06-17-2009, 03:19 PM
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Re: horse power

Hahaha my car makes more power at each wheel than yours. lol
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Old 06-17-2009, 03:42 PM
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Re: horse power

dream on school boy
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Old 06-17-2009, 03:46 PM
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Re: horse power

Quote:
Originally Posted by Scottina06 View Post
dream on school boy

Scott did you install that manifold yet?
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Old 06-20-2009, 03:01 PM
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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...
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Old 06-20-2009, 03:19 PM
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Re: horse power

Quote:
Originally Posted by mzh29 View Post
Scott did you install that manifold yet?
yeah....been in for a couple weeks
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