Air flow question

[Raminit2014]

Hey everyone, I’ve got a 2014 ram sport with the mopar CAI and just installed the hood scoop air intake kit, does anyone think/know if at highway speeds the air coming through the hood scoop would be more pressurized than the air coming through the fender well? I’m pondering either closing off the fender well air or making some kind of spring door that closes it off once the scoop is bringing in more air

 

[rzr6-4]

The engine is always trying to pull a vacuum so the only way that the old intake would cause any issues is if your hood scoop is supplying SO MUCH AIR that the engine is only using a fraction of it and the pressure build up is sending it back out the old intake. Others may jump in here to tell me I'm wrong, but I would leave it in place. If anything I would think it would be a benefit on the low end when you don't have that ram air effect.

 

[Raminit2014]

Agreed with the nice to have abundant air at low end, that’s why I’m thinking a spring door on the fender air duct, but that only makes sense if it is indeed getting pushed back through there, thanks for the feedback

 

[18CrewDually]

I don't know what "hood scoop" you installed but with wind tunnel testing it may get less air. Personally I wouldn't block the fender air intake at all.

 

[Raminit2014]

think more plumbing in existing hood scoop, but thanks for the wind tunnel comment, gonna tack a ribbon in the fender duct and toss a camera in to see what it does

 

[Raminit2014]

Finally got around to testing the airflow, while cruising with or against the wind on the highway it was definitely blowing air back out through the fender while maintaining speed/mild acceleration, amazed at the amount of air it gobbled up while at full throttle, after I finish the carbon fiber air intake tube I’ll throw a spring door on the fender inlet and do some more testing, appreciate all the feedback

 

[da_garr99]

Finally got around to testing the airflow, while cruising with or against the wind on the highway it was definitely blowing air back out through the fender while maintaining speed/mild acceleration, amazed at the amount of air it gobbled up while at full throttle, after I finish the carbon fiber air intake tube I’ll throw a spring door on the fender inlet and do some more testing, appreciate all the feedback

Any updates ? And did you make rhe carbon fiber intake tube?

 

[2012RAM1500RT]

I didn't see it if you said it but I assume you're meaning 1 of the 2 scoops on the sport hood? If I remember correctly back when I had the Air Grabber hood on my '70 GTX I think it was supposed to be about a 5 HP gain around 100 MPH. Of course it was pretty much directly on top of the carburetor also. Didn't seem like much to me but I loved seeing the look on the face of the guy next to me at stop lights when I flipped the switch under the dash and it would raise up out of the hood. Mostly was intimidating but was priceless! Lol

 

[Bigskyroadglide]

I've got the mopar CAI on my 14 RT that is supercharged. When installing all I saw when putting the hood scoop portion of the CAI on was a slight lowering of IATs.

The stock air box flows as much air as the engine can ingest, more from the hood area doesn't appear to cause issues. I know my tuner didn't say anything other than lowered IATs. I'm tuned by FRP.

 

[Raminit2014]

Scrapped the carbon fiber tube idea, found a reinforced silicone 45 degree bend piece that fit like a charm and way cheaper, haven’t gotten around to testing the spring door it’s so freaking hot in texas, and yes it uses just the passenger side hood vent to feed the air intake box