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Carb and intake swap

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Old 03-21-2010, 08:59 PM
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Default Carb and intake swap

Hey guys im new here and i was wondering if anyone has done a swap fom injection to carb and if so what carb did you use and what all did you have to modify if avything and was there any bad drivability problems after doing it. Thanks Bill
 

Last edited by Sport01; 03-21-2010 at 09:02 PM.
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Old 03-21-2010, 09:04 PM
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your computer would not like it and you would have to get a custom tune and a stand alone fuel management system that would cost more than you would like.

Here is what you would need off the top of my head:
1. New fuel pump that only pumps about 8-9PSI. Your truck currently runs at 43-59 PSI. Plus disconnecting the current pfuel pump that is in your tank.
2. Carb and intake..I have no idea on what CFM carb to use
3. New computer (PCM) so you do not get CEL codes for the fuel pressure, and o2 sensor reading.

That is why you never see anyone here on the forum with an EFI to carb swap. It is actually easier to do mods with the EFI setup.
 
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Old 03-21-2010, 09:06 PM
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Need emissions??
 
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Old 03-21-2010, 09:10 PM
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Thanks for the info . The reason i was thinking about doing it was becaus in having some fuel/cylinder 8 misfire issues with my truck and i cant figure it out i just thought a carb swap would eliminate all of the problem areas with the fuel system and the mpfi system
 
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Old 03-21-2010, 09:12 PM
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I dont put over 5000 miles in a year so im emissions exempt
 
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Old 03-21-2010, 09:26 PM
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Originally Posted by Sport01
Thanks for the info . The reason i was thinking about doing it was becaus in having some fuel/cylinder 8 misfire issues with my truck and i cant figure it out i just thought a carb swap would eliminate all of the problem areas with the fuel system and the mpfi system
i had the same problem and did the plenum and it fixed the problem
how is the compression ?
what did u check or do ?
 
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Old 03-21-2010, 10:03 PM
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Well, i just got done putting 1500 in it at the mechanic I had ball joints done l/r side universals done in the front both sides plugs,wires dist cap and rotor header gaskets cat back exhaust and wheels bearings in the front both sides and a new thermostat and brakes all around and both 02 sensors. thought the tune up would help but it didnt and i also replaced the number eight cylinder injector and that didnt help either, its really starting to get annoying it doesnt run too bad when you keep the rpms up when driving it so i drive it in 1st and 2nd gear around town and i get better gas milage than when i drive it on the high way in drive. the higher the rpms the better it runs it seems almost like you gotta keep it in the power band for it to run rite. i didnt do a comp test yet. but the truck has 226,000 miles on it .And i didnt pay anything for it it was given to me.
 
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Old 03-21-2010, 10:12 PM
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Whats all involved in the plenum fix ?? And how would that cause a misfire? in just one cylinder? im not really what you would consider a mechanic i know enough to do somethings but thats it nothing more involved than that like basic tune up brakes and stuff. Ive done nothing but weld since 95 so thats all i know anything about
 

Last edited by Sport01; 03-21-2010 at 10:16 PM.
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Old 03-21-2010, 10:16 PM
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This will give you an idea or can do a search on here. Yeah the pictures are gone so its not your computer.https://dodgeforum.com/forum/diy-do-...e00ram360.html
 
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Old 03-21-2010, 10:27 PM
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Wow I'll have to get my bother in law to help with that thats a little more involved than id like to get into and he is a "Shadetree mechanic" and is really good with automotive stuff. thanks for the link though.
 



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