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PB
Dodge Dakota
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12/27/2005
19:05:24
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 Subject: more and more exhaust questions
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Message:
I want to run true duals on my 93 318 4x4 but I hear people say that it takes away all of your low end torque and others say that it doesn't take away your low end torque I asked my dad who's been a diesel mechanic for 30 years and he thinks that it doesn't makes any difference in the low end, I don't know what to think
Please help
Phill
ps. hopefully doing a cam install next summer need good low end grunt could you recomend a cam like say in the 1000 to 4800 rpm range. also must work with stock computer
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Jasonb61
Dodge Dakota
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12/27/2005
23:17:13
| RE: more and more exhaust questions
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Message:
I've heard if you OVER-size the pipes, it takes away from Low end... If you go for true duals, get an X-pipe or H-pipe! They are good for keeping exhaust pulses even and help in scavenging...
But for a 318 4x4, I'd say GO FOR IT! I wouldnt go over a 3" pipe though...
-Jason
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PB
Dodge Dakota
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12/28/2005
12:02:56
| RE: more and more exhaust questions
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Message:
more questions on the way
what kind of effect on my gas milage would those duals have
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jono
Dodge Dakota
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12/29/2005
02:10:19
| RE: more and more exhaust questions
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Message:
hey i would say if you run true duals get 2 and a quarter inch with an h or x-pipe. I got my duals on my 69 coronet of course its a big block so i got 2 and a half inch. But my uncle is the biggest mopar fan and he said for small block its best to go with a lil smaller. My duals took away no torque and helped alot on top. Ive got flowmaster 50 series and love them. o yea about fuel mileage i wouldnt know cause i get about 10 all the time lol. well my thoughts.
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Kowalski
GenIII
12/29/2005
15:51:50
| RE: more and more exhaust questions
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Message:
Sweet - my first car was a '70 Coronet with a 318 I added headers and 2 1/2" dual system to - didn't notice any loss of low end. I think dual 2 1/2 is still fine for the newer 318.
Lead, follow, or get out of the way
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PlowinDak47
Dodge Dakota
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12/29/2005
19:44:10
| RE: more and more exhaust questions
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Message:
I've got a 70 Challenger big block car with tubes and 2.5 inch duals, it didn't have an H-pipe when I got it, I welded a summit universal kit up and put it in and I actually noticed a huge gain in low and midrange... I have a 4.7 in my dakota and have a full 2.5" single exhaust and it breathes just fine however.. If you tow or work with your truck I'd keep the exhaust small.. You've got to figure your exhaust ports in your heads are only 1x1" or so and they feed to a 2 1/4" outlet on your manifold and the truck breathes great through your factory 2.5" exhaust and single cat and reverse flow muffler...
Just a few thoughts
Mark
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PB
Dodge Dakota
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12/31/2005
13:12:54
| RE: more and more exhaust questions
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Message:
Oh by the way the my factory exhaust was a 3 inch. I need to know who makes a good high flow cat that's dot approved.
also what size pipe would it need to truly breath if i put a single on it anyone know?
thanks
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Woodrow
Dodge Dakota
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12/31/2005
13:20:55
|  RE: more and more exhaust questions
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Message:
I am putting my 93 back together and I want to put long tube headers on it. Does anyone have any ideas where to get these from.I know KRC sells them but I don't want to spend 800 bucks on them.
Does the 91 5.2 head have the same exhaust ports on them as the 93? I can't remember. Thanks for the help.......
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PlowinDak47
Dodge Dakota
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1/01/2006
01:18:57
| RE: more and more exhaust questions
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if it were mine I'd keep it 2 1/4,dynomax have a great pipe size calculator on their web page....
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seth
Dodge Dakota
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1/04/2006
18:43:52
| RE: more and more exhaust questions
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Message:
hey whats up you guys? i have a 2002 dakota 4.7 and i want to put true duals on it. i was wondering if anyone out there has done it, and how much is cost? plus i was wondering if there is anything else i should do to it if i get it done? thanks for the help.
seth
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