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  #1  
Old 02-14-2004, 05:18 AM
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Question Power upgrade for the 4.5?

Guy claims this SM2 system will increase horsepower in a 4.5 by 70Hp or so. Is this real or just plain bullchit? Some of you guys will know.

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Old 02-14-2004, 09:46 AM
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What SM2 system????? Sorry, http://www.Autronic.com. is a system that is supposed to upgrade.
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Old 02-14-2004, 02:01 PM
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http://www.autronic.com/ - take the period out after com

I wouldn't be surprised if it added about 10-20, but 70 sounds like quite a stretch! I'd like to see proof
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Old 02-16-2004, 08:39 PM
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Nothing short of a nitrous oxide injection system is going to give you 70 hp increase just by bolting something to the engine. Even then I doubt that you would get a 70 hp increase out of a standard 450 engine. Bolting a JATO pack to the back of the car might get you the kind of speed you are after but not only is the fuel economy a bit bad but the drivers behind you tend to get a bit pissed.
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Old 02-16-2004, 10:34 PM
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I'm looking for about 30 more horses. Looks like it hard to find on these cars.
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  #6  
Old 02-16-2004, 10:57 PM
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tosbt: Easy for me, all I have to do is put the hotter cams in from the junkyard!
But then I'm only to where I was stock

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1999 Chrysler 300M - RIP @ 221k
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