Guest zfan Posted September 20, 2003 Share Posted September 20, 2003 I got a idea while at the wrecking yard yesterday. I picked up the cold air assembly off a 2000 Dodge R/T 5.9 the hat fits directly onto the Holley 750 DP. The hose for it is a single 3" inch feed and if I decide to use it will have a K&N on it and will put the filter on the outside of the grill. My question is will this be enough to feed my medium build 355 sbc. I had the car Dyno'd a while back and was getting around 300 horses to the rear wheels. What are your thoughts on this? I picked the entire assebly up for 50 bucks. Currently I am running a 14x3 K&N with a K&N filter top but do not like the trapped hot air under the hood. Well the hood is louvered but it still gets plenty hot. Mike Quote Link to comment Share on other sites More sharing options...
ToplessZ Posted September 20, 2003 Share Posted September 20, 2003 I thought about doing this. Do you have pics. I would think it would work but then again I could be wrong. Why not mount it up and show us what it looks like Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted September 20, 2003 Share Posted September 20, 2003 I will do just that! Maybe tomorrow. Mike Quote Link to comment Share on other sites More sharing options...
Guest zbot43 Posted September 20, 2003 Share Posted September 20, 2003 I'm thinking the same thing. I put a hole in the front of my hood thinking I would run that back to the air cleaner. I completely agree on the hot air getting in the engine. I hope we get to see pictures soon. I have been thinking lately it might be a better idea to simple duct the air beside the radiator to the air cleaner, and just make the hole a false air induction. Quote Link to comment Share on other sites More sharing options...
Guest shortyz Posted September 20, 2003 Share Posted September 20, 2003 made mine for like 10$ with some piping from a duct system.. its not the sexiest thing ever, but it works Quote Link to comment Share on other sites More sharing options...
Guest zbot43 Posted September 20, 2003 Share Posted September 20, 2003 Ok, it looks good. The question is now do you notice any difference? I want to think that getting the cool air is going to make the engine idle better in heavy traffic. Quote Link to comment Share on other sites More sharing options...
Guest shortyz Posted September 20, 2003 Share Posted September 20, 2003 i mean the difference could be in the 1-5hp range i would think, i cant feel that small of a power increase. Quote Link to comment Share on other sites More sharing options...
Guest zfan Posted September 20, 2003 Share Posted September 20, 2003 Where did you get the air cleaner set up. It looks just like the one Rick B. has and he bought it from Ram air Box I believe. They are in the back of CHP and Super Chevy. They wanted 125-200 bucks The one I am looking at using was from a throttle body injection like on the Dakota R/T 5.9. It's just a hat that fits oner the carb and has a 3" vent hose to a K&N in front of the grill. Mike Quote Link to comment Share on other sites More sharing options...
strotter Posted September 21, 2003 Share Posted September 21, 2003 I installed a cold-air system on my '72 using a hat (that's a good term!) from a Volvo mass-flow sensor. Cut it up a bit, found some other pieces, ran a polished 3" aluminum tube that was (I think) originally for a Honda of some kind. I did some calculations, 3" is about the minimum limit for 350 hp. Cut a hole through the firewall on the driver's side, ran the aluminum piece through. The piece I used had a 45 degree turn on the end, luckily, so I could use one of the longer K&N conical filters pointing more-or-less toward the centerline. It *does* block the radiator a bit, but I don't think it had any significant effect. I noticed that the car wasn't as sensitive to really hot weather as before - I was using an open element before. That was good, but it's also more sensitive to cool weather, though that may have more to do with the state of tune than the temperature of the air. Before it starts to rain, I'm going to make some kind of simple deflector to fit forward of the filter. I'll likely make it from sheet steel (easier to cut with a jigsaw than aluminum), and mount it to the bodywork rather than the filter. Quote Link to comment Share on other sites More sharing options...
Guest Night_rider_383 Posted September 21, 2003 Share Posted September 21, 2003 We just made a cold air/ram air set up for my dad's 327 powered 84 camaro. We went with a front open hood scoop (cobra jet style) on the hood, then made an air pan that was rivited and silconed to the bottom of the air cleaner, then used foam pipe wrap around the top to seal the air pan to the hood around where the hole was cut in the hood. He picked up some pretty good gains. Before he had a 14'' open chrome breather with a 2'' tall K&N filter, after he had same air filter and breather just now sealed to the hood scoop He gained 2.4 MPG and takeing the times from g-tech he dropped .2 sec off his e/t Quote Link to comment Share on other sites More sharing options...
Guest shortyz Posted September 21, 2003 Share Posted September 21, 2003 2 vent pieces, 2 pieces of flexible duct hose, alum.. put the 2 vent pieces on the side of the filter, and where there are gaps use sheet metal and some rivets to seal it up. very simple cheap. Quote Link to comment Share on other sites More sharing options...
SpeedRacer Posted September 21, 2003 Share Posted September 21, 2003 You would have to drive pretty fast for the ram air effect to do much but the general rule for cold air is a 1 percent increase in horsepower for each 13 degrees cooler the air is going in the engine. Quote Link to comment Share on other sites More sharing options...
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