custom intake 460?
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Senior User
Joined: May 2005
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From: orange county and LA
custom intake 460?
hmm, a buddy of mine rigged up a home brew intake on his dakota using a k & n cone filter along with some pvc piping he bought at the local home depot.. his truck seems to have a lil more kick now. so, i thought, maybe i can do this myself? dual throttle body on EFI 460.. hmm, dual k & n filters. what is it, about 2" or something for each throttle body opening? lets say 2". buy rubber connectors used for piping that has the two clamps (one at each end) to connect the 2" pieces of pvc pipe to each opening, get two angle joints (45 degree bend) to point the 2 long pieces of pvc pipes; one toward the driver side and have the filter on it that would be over where the factory air box is and the other pointed to where the air filters for the smog pump use to be (by the battery). guys get the picture? now, how good of a home brew intake do you think this set up might be? i'm accepting allllll comments 
thanks
thanks
Senior User
Joined: Jan 2006
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Waste of money, that 'kick' from your buddies truck is in your head...
Unless you are pushing some SERIOUS power through your motor, an OEM filter and intake tube will flow more than enough air to your motor... All K&N does is filter less to flow more air. Doesnt matter when you dont need anymore air that before.
Unless you are pushing some SERIOUS power through your motor, an OEM filter and intake tube will flow more than enough air to your motor... All K&N does is filter less to flow more air. Doesnt matter when you dont need anymore air that before.
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Joined: May 2005
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From: orange county and LA
i found a shop a little while ago on the other side of LA that's going to make a custom aluminum cold air intake for my truck. i want as much power outter my motor as possible. oem doesn't always cut it for me. more mods will be done to the motor as far as a cam, larger throttle body, and replacing the msd ignition box with a crane cams ignition, larger injectors, and a chip goes. c'mon, some of you gotta love a decently fast truck. or am i alone on this one? highly doubtful :]
Post Fiend
Joined: Oct 2003
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From: New Jersey
You're not alone in the desire for more power. Probably why I'm building a 500cid twin-turbo stroker for my crewcab.
The stock airbox, dual hoses, and dual throttle body on the 460 (7.5L) EFI engines can flow 35% more cfm than the stock requirements at redline. So until you reach that point, the stock parts are fine.
The first thing you will want to replace/upgrade in the air intake is the throttle body itself. The ID of the two openings are smaller than the hoses, and the ID of the outlets of the airbox itself, by about 10% give or take a miniscule amount.
The stock airbox, dual hoses, and dual throttle body on the 460 (7.5L) EFI engines can flow 35% more cfm than the stock requirements at redline. So until you reach that point, the stock parts are fine.
The first thing you will want to replace/upgrade in the air intake is the throttle body itself. The ID of the two openings are smaller than the hoses, and the ID of the outlets of the airbox itself, by about 10% give or take a miniscule amount.
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Senior User
Joined: May 2005
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From: orange county and LA
woo! 500cid twin-turbo?!!! awesome! fire it up and blow the hair off a dog, haha That's awesome though. i wont run forced induction for another year or so.. Paxton SuperCharger i'm kinda leaning towards. well, looks like this weekend new throttle body is going on along with the cold air intake
Hotshot
Joined: Dec 2003
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From: iowa
Originally Posted by frederic
The first thing you will want to replace/upgrade in the air intake is the throttle body itself. The ID of the two openings are smaller than the hoses, and the ID of the outlets of the airbox itself, by about 10% give or take a miniscule amount.
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Senior User
Joined: May 2005
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From: orange county and LA
HA! i already did that. i read on this forum a while ago that those silencer things were in there, i cut em out with a steak knife
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Elder User
Joined: Jul 2005
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From: Milpitas, CA; Tyler, TX
http://www.performanceunlimited.com/...ircleaner.html
This here is a pretty convincing reason to leave the air silencer in there. To quote them, "maybe Ford actually had a better idea here". The rest of this article may help you in your quest for power, too.
This here is a pretty convincing reason to leave the air silencer in there. To quote them, "maybe Ford actually had a better idea here". The rest of this article may help you in your quest for power, too.
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Hotshot
Joined: Dec 2003
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From: iowa
interesting stuff if the numbers weren't made up, take a very critical look and you will see that more hp went slower, and got worse fuel economy too. I can't tell for sure but my guess is you will find that was done with 4 different vehicles if you really push them on it.
But then again there are some people that believe the factory setup is best since they built them that way for a reason and they are high paid engineers that work on this stuff.
I have seen actual verified improvements taking the silencers out. these were time slip verifications as in the vehicle picked up 3 tenths in the quarter consistantly with no other changes.
But then again there are some people that believe the factory setup is best since they built them that way for a reason and they are high paid engineers that work on this stuff.
I have seen actual verified improvements taking the silencers out. these were time slip verifications as in the vehicle picked up 3 tenths in the quarter consistantly with no other changes.
Elder User
Joined: Jul 2005
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From: Milpitas, CA; Tyler, TX
Could also be the the way the engine delivered the power slowing it down as well, or perhaps different conditions outside on the testing days, but I see what you're saying. As for myself, I don't think 4-wheeler Magazine has the budget to be doing this with 4 different vehicles, and as it's a fairly successful magazine, I would say that it's reputible enough for me to believe them if they say it was all done on one truck.
If you found that removing the silencer has worked for you, then even better! It's always nice to find something that works better for you that's free!
If you found that removing the silencer has worked for you, then even better! It's always nice to find something that works better for you that's free!
Hotshot
Joined: Dec 2003
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From: iowa
I take everything in any of those mags with a serious grain of salt, it was one of the big hotrodding type magizines that published the article dealing with 460s that said the D7TE, and D8TE casting number truck blocks were 4 bolt main blocks and were plentiful, And I have spent the last 10 yrs trying to dispell that myth or prove it but as of yet I have never even found that casting number let alone a 4 bolt main truck block. but it was published in a magizine that has a good reputation so it must be true..
And yes my offer still stands on anyone that has one of those blocks and can either tell me where it is so I can examine it, or take GOOD pictures of it that show both the casting number and 4 bolt factory main caps together I will pay for a 1 yr club FTE membership. I made this offer a year ago and still haven't had to pay up.
And yes my offer still stands on anyone that has one of those blocks and can either tell me where it is so I can examine it, or take GOOD pictures of it that show both the casting number and 4 bolt factory main caps together I will pay for a 1 yr club FTE membership. I made this offer a year ago and still haven't had to pay up.
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Senior User
Joined: May 2005
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From: orange county and LA
i figured out what i'm gonna do, i'm not going to the shop to get the custom intake made. rather, i've already bought 2 pieces of pvs pipe (short pieces) to take out that plastic thing in the middle of the intake hoses where the iac valve hose goes into and put the pipes there (one in each). i'm splitting up the intake hoses as i've mentioned before (one where the stock air box should be and one behind the battery) and just attaching the k & n cones there. the filter for the iac valve i believe is what they use in carb. vehicles with the factory style air cleaners.. anywho, i have one.. a little plastic thing that fit right into the iac valve hose nice and snug.
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