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cooter
Dodge Dakota
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7/18/2003
18:06:54
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 Subject: slow and poor mpg
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i have a '88 dakota its slow slow with poor poor mpg i could live with the mpg if it was a little quicker i have no low end decent mid range and poor high end i am running 255/65/15 k&n air filter dynomax high flow cat no muffler had a dynomax muffler but cut it off wasn't loud enough but that didn't make a difference in power at all new bosch platnium plugs what can i do to get some power or better fuel economy thanks for any advice or suggestions
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Scott
Dodge Dakota
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7/18/2003
21:10:15
|  RE: slow and poor mpg
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first off, no muffler is killing your back pressure, hence horrible low-end response. second, in my opinion, bosch plugs SUCK, try a set of autolites. the tall tires on the back arent helping matters either.what engine do you have?
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Joe
Dodge Dakota
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7/19/2003
00:08:44
| RE: slow and poor mpg
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Cut the cat before you cut the muffler. Anticipate the stoplight.
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dodgekota
Dodge Dakota
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7/19/2003
01:28:59
| RE: slow and poor mpg
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what size pipe do u have on the exhaust
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cooter
Dodge Dakota
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7/19/2003
22:14:13
| RE: slow and poor mpg
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i have 3.9 l with 2.5" exhaust i had no low end below i cut the muffler
if i was going to cut the cat what do i do with the air inlet
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Jay Wingate
Dodge Dakota
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7/20/2003
06:45:26
| RE: slow and poor mpg
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What rear end ratio are you running?
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cooter
Dodge Dakota
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7/20/2003
13:38:41
| RE: slow and poor mpg
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my truck has a 3-speed auto so i am figuring that the rearend ratio is fairly high maybe 3.54:1 i am just guessing though
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Joe
Dodge Dakota
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7/20/2003
22:23:27
| RE: slow and poor mpg
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Maybe it'll always be slow with horrible mpg since you have a 3spd.
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