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GREG K Dodge Dakota JOIN HERE
11/26/2007 00:18:29
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Subject: 4.7 under rated horsepower IP: Logged
Message: how many people believe the 4.7 is under rated. reason being is how can the 4.7 put down 190 in an automatic and the 5.9 put down only 150
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Super bee GenI
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11/26/2007 10:37:39
| RE: 4.7 under rated horsepower IP: Logged
Message: so the 5.9 losses 100 hp to the driveline???
1990 sport RC SB, 1995 318drivetrain, 3.92 gears (came with truck) Powertrax "traction system", 95 dash/steering wheel, hearthrob exhaust, headers, cutout after y-pipe, necessary electric fan add-a-leafs, 30x9.5 mud tires, cranked T-bars, AR 39 15x8 rims, grill guard, roll bars
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GREG K Dodge Dakota JOIN HERE
11/26/2007 16:42:30
| RE: 4.7 under rated horsepower IP: Logged
Message: along with both hemi's they all use the same design transmissions so the 4.7 could have more power than claimed. hell the srt/4 does
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Kowalski GenIII
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11/26/2007 17:35:35
| RE: 4.7 under rated horsepower IP: Logged
Message: No, the 4.7 uses a planetary gear style transmission (545RFE or 45RFE) which is quite different from the auto behind a 5.9. Might want to recheck the "facts" behind your earlier claim as well - I doubt your talking about the same ambient conditions and the same dyno for the testing.
Lead, follow, or get out of the way
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Epyon Dodge Dakota JOIN HERE
11/26/2007 19:22:31
| RE: 4.7 under rated horsepower IP: Logged
Message: I dont know much about dodge transmissions but generally the rule of thumb is 13% power lose in the drive train for an auto and 11% for a stick
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Dan M Dodge Dakota JOIN HERE ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
11/27/2007 01:35:29
| RE: 4.7 under rated horsepower IP: Logged
Message: So can someone explain this
my 08 Avenger R/T(3.5L engine) is rated 235 HP and comes with 6 speed autostick. The 08 Charger with 3.5L engine is rated at 250 hp and comes with 5 speed auto stick.
also my avenger is fwd
what's the difference to make 15 hp difference?
- Dan M
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TexasTodd Dodge Dakota JOIN HERE ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
11/27/2007 14:24:35
| RE: 4.7 under rated horsepower IP: Logged
Message: Greg, Where so you get 190? My 4.7, nearly all stock, NON super chips, put down 218 RWHP.
SC's on premium 227 RWHP.
Epyon, I've always used 18% loss for my 2001, 4.7 MANUAL, the QC has a 2 piece drive shaft.
Autos are usually more like 25%, especially with a 2 piece derive shaft.
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Epyon Dodge Dakota JOIN HERE
11/27/2007 16:13:54
| RE: 4.7 under rated horsepower IP: Logged
Message: Ya u may be right for dodges but i used to work at a chevy shop and thats the rule we used to use. It may or may not be correct either way it justifys why i have never owned and never will own an automatic. Power robbing, gas sucking slugs that are not nearly as fun to drive
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TexasTodd Dodge Dakota JOIN HERE ![Email](http://www.dodgedakota.net/amb/icons/email.gif)
11/28/2007 14:26:58
| RE: 4.7 under rated horsepower IP: Logged
Message: Epyon,
I obviously feel they same way as you regarding automatic trannys.
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