Hi i got a 2000 dakota 5.9 4x4 quad cab . I have a k&n ,fi hughes intake , custum 2 1/4 y pipes to single 3inch whit high flow cat. When i putt at last my fi airgag intake i gain rpm nice but i loss very good low end torque that i would like to get back a bit . So i was thinking a cam , my question is :in my situation do y need a good towing cam to get back some end torque or it will work more against the set up and be worst .or do i need a cam from1500 to 5000 and i will regain bottom torque anyways.im unexperienced whit cam selection. Thank a lot if anyone can help and i forgot my gear ratio is 3.55 whit 265 or 31 inch tire
Cam selection ?????
Mikedak
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Brian, its a 4x4 QC so i don't think he plans to drag race it. So i could see the 4.56s helping his heavier truck.
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I have 4.10 in my truck with a 28 inch tire, 4x4 with probably 30+ tires definatly do 4.56. Don't take any advice from people that don't actually HAVE gears and are just relaying what they've heard or read . My gears didn't affect my milage much if at all. City can actually get better because your not using as much gas to get going. Having said that your first 2 tanks of gas are pretty much a write off because youll Be having so much fun
Running 4.10s with 26" slicks giving me an effective 4.40 gear ratio when at the track.
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Just cause i don't have them don't mean i am wrong. I have been in plenty of r/t's with 4.56s. I do not want them cause as it is i am pulling 2300 at 70 and i do a lot of freeway driving
Yeah well though my spacer adaptor was all open butt i was wrong .it is split to keep it dual plane.so now i dont now what to do to bring the throttle response back at the bottom end.is there anyone out there that has the fi air gap whit a 4 hole throttle body on it . If yes how his it thanks
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It will run like absolute shit without the head flow to support a 4bbl tb.... The 4bbl tbs flow upwards of 1000 cfm, and will KILL Any bottom end you have left...
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You need to listen up and do some 4.10 gears and a higher stall convertor like we have been saying..... :funny:
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This.... He doesnt have any of that (to my knowledge) while a smaller tb would help a touch down low, what you sacrifice in the top end isnt worth it... You would be better putting the kegger back on for tourque and top end than put a v6 tb on the airgap....everything you gained from the top end would be gone with the v6tb
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did you read any of what we typed 
you arent gonna be happy with the 52mm tb either.... you need gears, a higher stall, and a TUNE.......not a $400 tb thats gonna cut the legs off whatever bottom end you had left...
read up on port velocity and how it affects tq and power....and how changing the tb affects that.....
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