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-   -   DIY RAM AIR/ COLD AIR (https://www.truckforums.com/forum/chevy-silverado-gmc-sierra-forum-11/diy-ram-air-cold-air-5937/)

popo 01-23-2008 05:19 PM

DIY RAM AIR/ COLD AIR
 
I am going to start my ram air cold air project today. I will post the progress as i go.

for those of you that have read my projects before you know i go as cheap as possible. so i am estimating about $20.00 total give or take 6.95 for beer. I already have a k&n so there is a huge cost out of the way.
I have been stewing on this for a while and i think i will mimic the ram air system for late model mustangs and follow the March design pretty close.


more to come.

tylerz71 01-23-2008 08:13 PM

RE: DIY RAM AIR/ COLD AIR
 
I am interested to hear the design and results.
If your system works, I might do me up one similar to it.

Good luck! ;)

rxsteven 01-23-2008 08:23 PM

RE: DIY RAM AIR/ COLD AIR
 
Thats Awesome man cant wait to see how it works.



ps take lots of pics

tylerz71 01-23-2008 08:26 PM

RE: DIY RAM AIR/ COLD AIR
 
I had actually thought about making one out of my old vacum cleaner Im about to throw away.
Using the 1.5" hose, run from a hole cut into the airbox, into the flat-looking attachment in the grille with a piece of screen-door on it. But I was afraid water would get in.

popo 01-24-2008 07:57 PM

RE: DIY RAM AIR/ COLD AIR
 
I hooked up the preliminary system and it really seemed to work well. but i am skeptical so i will run it back the old way with a clean filter as a base and then take pics and do the write up for the new system.

question for you guys, do you think that by just running a cold air intake i would notice a significant gain over an open element? the system i am running covers up a lot of the filter and has an opening of 3.5 inches it is only getting air from the scoop in the bumper. oh well we'll see. it seems to have awakened running the piece meal new system. but the ram air is supposed to really be noticeable at high speed and not off the line like this is. I'll test some more..[sm=gears.gif]

also the exhaust note is acctually a little quieter at idle.

smoke20 01-24-2008 08:22 PM

RE: DIY RAM AIR/ COLD AIR
 
cod air should always be better than open element as long as there is a large enough diameter for the cold air to get in sufficiently.

rxsteven 01-24-2008 08:29 PM

RE: DIY RAM AIR/ COLD AIR
 
I think all the air comming in has to have a place to go beside the filter. Thier might have to be a large intake and a small exit to keep the flow going.

smoke20 01-24-2008 09:54 PM

RE: DIY RAM AIR/ COLD AIR
 
but if it does all go to the filter you get the forced induction that you want.

popo 01-25-2008 07:02 AM

RE: DIY RAM AIR/ COLD AIR
 
thats true, the k&n i have is huge and it had to almost be forced in to the "box" i'm using which in turn seals it self in anmd only gets air from the 3.5 in opening for the ram tube. pictures will happen today!

jcbst12 01-25-2008 09:05 AM

RE: DIY RAM AIR/ COLD AIR
 
What if I got 4" duct, slipped it over my cone air filter and ran it to the bumper in such a way that it will blow air into the duct?

popo 01-25-2008 01:32 PM

RE: DIY RAM AIR/ COLD AIR
 
that's pretty much what this is doing. in theory, if you get a good seal you will have ram air.

rxsteven 01-25-2008 06:09 PM

RE: DIY RAM AIR/ COLD AIR
 
Cant wait to see them!!

tylerz71 01-25-2008 06:14 PM

RE: DIY RAM AIR/ COLD AIR
 
sounds good. Mounting the "intake" peice would be difficult for me since I do hit a good bit of mud and water. So Ill be thinking on where I could put it to where air will get in but water wont.

popo 01-25-2008 07:39 PM

RE: DIY RAM AIR/ COLD AIR
 
her they are. when i started this project, i had high hopes and for 28.00 it was worth the time but I didn't get to do it exactly how i wanted because i lacked a few tools. but here goes:


here is they way i was running the intake before:
[IMG]local://upfiles/3244/E12D819F55C7448C8ADF75CEF5A47C3E.jpg[/IMG]

here is the bottom of my stock air box. swiss cheese style:D

[IMG]local://upfiles/3244/2D054668DCA04F769B4EF91A527E43B0.jpg[/IMG]

I ran the dryer duct, 3.5 inches, down to the front bumper and attached it to a 90 degree duct/scoop. the scoop is just zip tied to the opening behind the tow hooks for testing on the locations.
[IMG]local://upfiles/3244/5E21FAE5FD5B42AD9C00D30307472E5E.jpg[/IMG]

[IMG]local://upfiles/3244/BB827CFDB3EB469C901DABA68DCCD19A.jpg[/IMG]

tylerz71 01-25-2008 07:45 PM

RE: DIY RAM AIR/ COLD AIR
 
nice job.
If I did it like that, Id add some type of screen or filter onto one side of the dryer hose. Just me though.

popo 01-25-2008 07:47 PM

RE: DIY RAM AIR/ COLD AIR
 
Part 2


as you can see the filter i have is huge mongess!! I had to buy a french drain elbow to fit it inside.
[IMG]local://upfiles/3244/10E7D07CD15E4A499FA149BE12070BAD.jpg[/IMG]

[IMG]local://upfiles/3244/FA3C6A175604415588AFDE0D3140EFBD.jpg[/IMG]

[IMG]local://upfiles/3244/A26854389B3A41F2A7093B376E203B77.jpg[/IMG]

[IMG]local://upfiles/3244/E78C39EB8F0C44D889C0BA4B985E7769.jpg[/IMG]
as you can see it was a tight fit and it bent the filter just a little bit. i felt it necessary to munt it back wards and open the solid end so i could get a better seal. there is about a 1/8" gap around the open end of the filter.
[IMG]local://upfiles/3244/6A2B13D4B6E44EBA82A48E0FB018BEA8.jpg[/IMG]

popo 01-25-2008 07:54 PM

RE: DIY RAM AIR/ COLD AIR
 
Part 3
here is the assembly well.....assembled! test number one was good i can feel the power increase but it is not a supercharger. overall i am pleased with the results but i wil be testing better locations for the intake scoopover the next couple of weeks and of course gas mileage. this was kind of a pain because of the oversized filter i had but i was able to make it work.I am not too thrilled with all the bendsI had to make with the dryerhose so i will be addressing that as well.

[IMG]local://upfiles/3244/69E51659821242208236DA8D53B1EE58.jpg[/IMG]

tylerz71 01-25-2008 09:41 PM

RE: DIY RAM AIR/ COLD AIR
 
dang, that is truly a "ram air"!

Lemmie know how that feels (power) and sounds.

rxsteven 01-25-2008 09:53 PM

RE: DIY RAM AIR/ COLD AIR
 
Looks Freaking awesome man good thinking with the drain thing. I wonder if you could get a T instead of a elbow and have dual intake on both sides of the filter.

Theres so much room with that v6 twin turbos would look real good in that dog house.

rxsteven 01-25-2008 10:02 PM

RE: DIY RAM AIR/ COLD AIR
 
Oh yeah did youre exhaust get any quieter from what ive read its a noticeable difference. I was also thinking about using a 2 liter bottle and cutting the top of to the size of the duck and the bottom off. I know it sounds kind of redneck but you can always paint it to. That way you can shape it a little and kind of force more air into the duck.

popo 01-26-2008 12:36 AM

RE: DIY RAM AIR/ COLD AIR
 
the bottle thing is not a bad idea but i think it might get a little flimsy once it gets hot. I could have made it a dual intake but, the cost of the "t" instead of the elbow was almost double. plus the filter is 6" around. as far as the exhaust goes, it is a little quieter and it now has a more hollow sound to it. it sounds like it has an echo almost. not bad just alittle different. the mid range power and throttle response is surprising but i know it can be better.

there is definitely enough room for a twin turbo setup in the engine bay, justnot in my wallet!

smoke20 01-26-2008 09:12 AM

RE: DIY RAM AIR/ COLD AIR
 
I see you used the flex pipe, but do you think smooth pipe would be better? Or is that the plan after you find the best location? Also, my volant box has an opening in the bottom for ram air, and I was thinking baout sealing the 2 stock holes so as not to lose the pressure affect. Any plugs available for those? Like the drain plugs for floor in a jeep?

popo 01-26-2008 04:09 PM

RE: DIY RAM AIR/ COLD AIR
 
I don't know about the volant plugs but i pretty much shoped in every dept at home depot for parts.yes you're right, iwill be moving to a solid pipe as soon as i find the best location.

smoke20 01-27-2008 08:23 AM

RE: DIY RAM AIR/ COLD AIR
 
sorry I didn't say that clearly, I was looking to close the 2 stock holes in the fender.

popo 01-27-2008 11:55 AM

RE: DIY RAM AIR/ COLD AIR
 
man, i have no idea. sorry

MrLM7 01-28-2008 07:48 PM

RE: DIY RAM AIR/ COLD AIR
 
Smoke, I'd say get some flat plastic and RTV and sealthem up.

rxsteven 01-29-2008 08:14 PM

RE: DIY RAM AIR/ COLD AIR
 
I think im going to make a scoop for mine the only thing is I dont know much about body work. Im going to bend it up paint it and see what it looks like. Anything new Popo on youre project? Have you moved the intake tube around?

popo 01-31-2008 10:15 AM

RE: DIY RAM AIR/ COLD AIR
 
yeah sorry, i'v been busy.

I decided to move my fog lights in to the opening where the tow hooks are and then bolt the scoop into the hole where the fogs were. then i cut a hole in the factory plate that the stock air box sits on. i then ran the flex tube straight down to the scoop. there is almost no angle in the tube now and the flow has increased greatly. i don't think i will worry about a new supply method because when i straigtened out the flex tube it doesn't have very much resistance now. i am still working on a mpg estimate but as for seat of the pants gain, it absolutley helped.when i stand on it above 50 mph it really comes to life! and the cold air factor seems to have helpedthe low end a little.

i will post the last pics when i get theinserts for the holes in the bumper painted and mounted.


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