newbie intake question

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cooleric2000

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Hey I'm new to intakes, what kinds of intakes are there? Forced induction , CAI .... what do they mean?
 

joezek

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Forced induction is air that is forced into the induction system from a supercharger or turbo.

CAI is Cold Air Intake

A hood scoop is really just a form of CAI. Some claim that the hood scoop is increasing the barometric pressure, therefore creating forced induction- however your gonna have to have one huge hood scoop and be traveling a few hundred mph to gain even 1/2 psi.

There's also those cheezy air filters people stick on the intake that's cone shaped. I think it's about the stupidist idea. They're removing an intake that's designed to bring in fairly cool outside air, which is also usually dry and safe. The new cone shaped filter has nothing preventing water from splashing into it, and it's breathing in HOT 125 degree air from under the hood.

The best thing you can do is have an unrestricted intake pipe from whatever filter your running to the throttle body. Also, you want the inlet before the filter to be as close to outside air as possible. The best and safest seems to be running the filter into the inside of the front fender where its completely protected from water, and has no way of letting hot engine compartment air from getting sucked in.
 

panda24619

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if you get a cold air intake i recommend any that have head shields. not only do they protect from engine head but some water from coming in. there is a cai that has the filter completely surrounded. dont remember the company though.
 

walnuts4x4

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I have a K&N FIPK with the splash shield and woudn't trade it for the world.... maybe a supercharger but thats not any time soon...lol

but a cheap mod that has been dyno'd for performance is the "Gotts Mod"
 

GAINMOB

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walnuts, did you get the shield from K&N or is it from something else...i'd like to get one for my intake if you can provide some info
 

joezek

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I just read up on the "Gotts" mod, I like it. My truck already has a K&N filter from the previous owner, and the stock air box is well...stock. According to my Scan Gauge the inlet air temp is usually about 1 degree hotter than my outside air temp gauge. So I'm already getting the coldest possible temp air through the stock location in the fender.

The Gotts mod is awesome because all your doing is removing a restriction from the intake inlet, right at the fender connection. The claim is that dyno's prove a 7HP gain at the wheels after doing the Gotts mod. The best part is it looks stock and is still safe from ingesting water.
 

walnuts4x4

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my shield is part of the kit... but could easily be made if you had some thin metal and a welder
 

tritonman5.4

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I just read up on the "Gotts" mod, I like it. My truck already has a K&N filter from the previous owner, and the stock air box is well...stock. According to my Scan Gauge the inlet air temp is usually about 1 degree hotter than my outside air temp gauge. So I'm already getting the coldest possible temp air through the stock location in the fender.

The Gotts mod is awesome because all your doing is removing a restriction from the intake inlet, right at the fender connection. The claim is that dyno's prove a 7HP gain at the wheels after doing the Gotts mod. The best part is it looks stock and is still safe from ingesting water.

hey bro i just want clarity on that inlet connected to the fender,you are saying removing that part help unrestrict air flow right??
 

joezek

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hey bro i just want clarity on that inlet connected to the fender,you are saying removing that part help unrestrict air flow right??

Yeah if you google Gotts mod you can find the instructions on the F150 forum. It took me 15 min to do it at work using my band saw and a 3" PVC pipe, and a 3" flexible coupling. I removed the air intake noise muffler thing, and removed the horribly restrictive 2" inlet. It's actually a little smaller than 2". Now it still looks stock but sounds louder when you floor it. The intake noise echoes through the front fender when you acclerate hard. I don't know if I feel extra power, but no one can feel 8 HP. They have proved it with dyno runs though on the F150 forum. If anyone claims they can feel 8 HP they're full of $hit. That's less than a 1/10th of a second in the 1/4 mile. No one's ass is that sensitive.

It's getting the coldest possible air through the fender which completely blocks all the hot air from under the hood. My scan gauge shows a 1 degree higher inlet air temp than my outside air temp gauge. The difference now is I removed the restriction in the inlet before the air filter.

The only way to improve further is to put a smoother pipe from the air filter to the throttle body.
 

ViperXC

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I have another question regarding intakes. Someone mentioned to me that the metal kits may heat up more causing the intake air to be warmer. The plastic kits may not hold the heat as much. Can anyone verify this to be right or wrong? Thanks
 

tritonman5.4

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Yeah if you google Gotts mod you can find the instructions on the F150 forum. It took me 15 min to do it at work using my band saw and a 3" PVC pipe, and a 3" flexible coupling. I removed the air intake noise muffler thing, and removed the horribly restrictive 2" inlet. It's actually a little smaller than 2". Now it still looks stock but sounds louder when you floor it. The intake noise echoes through the front fender when you acclerate hard. I don't know if I feel extra power, but no one can feel 8 HP. They have proved it with dyno runs though on the F150 forum. If anyone claims they can feel 8 HP they're full of $hit. That's less than a 1/10th of a second in the 1/4 mile. No one's ass is that sensitive.

It's getting the coldest possible air through the fender which completely blocks all the hot air from under the hood. My scan gauge shows a 1 degree higher inlet air temp than my outside air temp gauge. The difference now is I removed the restriction in the inlet before the air filter.

The only way to improve further is to put a smoother pipe from the air filter to the throttle body.

lol thanks alot well shit all i did is just removed the inlet completely never thought of just making it bigger and put it back on
 

joezek

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Your running a 99 EXP? I'm not sure what intake looks like on yours or if the same mod applies. However it's the same idea, removing any restriction before the air box, and then reconnecting it to an outside air source like through the side of the fender.
 

joezek

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I have another question regarding intakes. Someone mentioned to me that the metal kits may heat up more causing the intake air to be warmer. The plastic kits may not hold the heat as much. Can anyone verify this to be right or wrong? Thanks

I don't know from my own experimenting, but I've seen some people wrap their intakes with insulation. Metal, especially aluminum, transfers heat much quicker than plastic. Plastic is an insulator. So with that said I would assume the plastic intake pipe keeps the inlet air cooler. The aftermarket metal intake pipes look shiny and nice, but again they're missing some function. I think the best would be a plastic pipe that's smooth on the inside and shaped for the best airflow.
 
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