true, most of the restriction comes from the stock air tube. Someone needs to make an intake that replaces the factory air tubing then goes down below the air box like the pro cold. sorta like what you have in mind slowverado, and i bet you will get good results if you make that custom intake of yours.

 

I manufactured a copy of the ProCold myself and I was pleased with the results. I picked up 4 tenths and 2 mph in the 1320 with it. The truck went 15.6x @ 86.5 and then it went 15.2x @ 88.5. There were no other changes at that time.

 

sportside 5.3

Funny how other intakes i.e. Volant, also use or have what is called an “air muffler” on them. I think Procold and Volant both did their research and found what you soon will – that indeed it is better to have the “air muffler” inline to help prepare the air for the throttle body etc. I had asked Procold about this as I too wanted a nice finished piece under my hood also but they said they tried it and it actually made less power – maybe these companies who use the tubes with air mufflers know more than you think – or maybe they don’t.

IMO I think the companies that use “air mufflers” have enough resources and staff between them all to have made educated decisions based on tons of testing and research. I mean why would they make something produce less power and then market it – NOT!

PS as for making them for you cool but for selling them be careful they have a patent!

 

I've often wondered the same thing and was told exactly what you just said. AirAid only made the airbox and filter but left the tube because they said it did not hinder performance or airflow. Then they came out with their MIT smooth intake tubes and I talked to them again. The guy said the MIT tubes didn't really help performance over the OEM tube that come on our trucks. I asked why make them then and he said because some guys don't believe the OEM tube is better than a smooth tube. I've also heard and read that the intake is actually sized for the correct airflow needs of the engines and the resonator hanging down has two purposes. One is to control sound but the other is to have a small resevoir of air so the engine is responsive right off idle ("tip in" I think it's called). I told know if any of this is true but I've heard more than once. 11H who intorduced the Pro Cold on the Ave site said the same thing about Pro Cold testing the intake with a smooth tube and it did loose power. So for now, I'm going to stick with the OEM tube and IF I can pick up a smooth tube some where for CHEAP, then I'll test it out.
Jim

 

actually they have a pattent pending, and if i, or anyone else were to make something and sell it, all you have to do is sell a complete system, that has vague differences and it's TOTALLY DIFFERENT and not a patent offence.

 

11H says a lot of stuff over there that I don't agree with. It distresses me that so many people there bow down to him. There was a bit of a stink going on about some opinions over here back in March of '03.

I definitely agree that this intake makes power. It's a good design for some people.

I figure I should mention anyone living in a rainy area, or who off-roads a lot, probably shouldn't use this intake...

 

I'm not bowing down to him! I feel he has a valid point at times and not so valid points at other times. I'm just stating that two companies (Pro Cold & AirAid) say the intake tube doesn't hinder performance and 11H (who does seems knowledgable about the GEN III engines) says it doesn't hinder performance too. Like on this forum, a couple guys in here seem really know about cams or torque converters and they're asked about this one or that one. For those who disagree with them, that 's fine, to each his own. I don't know if I agree or disagree, I will see for myself though and will make an intake tube or try and find an AirAid or some other tube for cheap.
Jim

 

Slowverado – Yes you are right you could make a complete system by adding a straight tube – but it would make less power as proven by multiple other companies, but maybe you have a way of selling less for more?

The bottom line is they are patenting what they found to be of value and not what isn’t. Make a complete system and sell it, I am sure the companies that use a tube with an air muffler wont even see you on the radar screen. – I was just trying to make a point that these guys came up with something and it works awesome, I have nothing but power all over the entire RPM range because of them and talk about response-

 

tuck2, you said you got 19hp with your procold. you dont happen to have a dyno sheet for us do you?

thanks

 

dude, i NEVER said i was trying to take over K&N or something like that, i just said i would make something that i liked that looks good and works well and sell them if people want them. as for you, you enjoy your VERY OVERPRICED 4"mandral bend elbow and filter (about $55 worth of parts) and keep being slow. have a good day.