Ram Air Spooling

[Ross L]

Re: Ram Air Spooling

Mark, IMO you eleminated the stock air tube/crossover "restriction". In fact, you made the path as open(unrestricted) as possible. IMO, it wasn't the ram air that helped but the lack of restrictions. :2cents: Anything put before the turbo will be a restriction weather its a ram air box, crossover, air filter ect. The ram air box as pictured will never supply enough air for the turbo. The turbo will then have to suck/pull air through the ram air. IMO even underhood air(filter mounted directly to the turbo) is better than ambient if it causes more of a restriction.All my opinion of course
Ross

 

[420]

Re: Ram Air Spooling

There is a difference, but I'm not sure at what power level/speed you would really see it get noticeable.It does work though. There is a reason certain classes outlaw front facing turbos.

 

[STORM TROOPER]

Re: Ram Air Spooling

Here is my ram air scoop I made out of fiberglass.

what does this look like under the hood?

 

[It's just a six]

Re: Ram Air Spooling

The scoop feeds into the fender which feeds my ATR airbox.

Nothing you can really see under the hood,the fiberglass scoop is hooked up to the fender.

 

[mcskibadee1]

Re: Ram Air Spooling

The scoop feeds into the fender which feeds my ATR airbox.

Nothing you can really see under the hood,the fiberglass scoop is hooked up to the fender.

I dont have an ATR box but an open filter where the battery was.what I was trying to say Is cant make a true ram air induction but if you could put a scoop just like you did forcing air into the engine bay close to the CAI it would theoretically help. Yours was the one I saw but never saw an interior shot so I didnt know what it was like under the hood.

 

[sy2206]

Re: Ram Air Spooling

Mark, IMO you eleminated the stock air tube/crossover "restriction". In fact, you made the path as open(unrestricted) as possible. IMO, it wasn't the ram air that helped but the lack of restrictions. :2cents: Anything put before the turbo will be a restriction weather its a ram air box, crossover, air filter ect. The ram air box as pictured will never supply enough air for the turbo. The turbo will then have to suck/pull air through the ram air. IMO even underhood air(filter mounted directly to the turbo) is better than ambient if it causes more of a restriction.All my opinion of course
Ross

I underatand what you're saying, but my truck didn't have the stock crossover in it. The elbow hose on the turbo was always pointed straight out the pass side of the truck, and I had a nice cone filter on it. The filter was a K&N brand, not one of those chinease ebay filters, so I would think it flowed pretty well. I'd just remove the filter, and put my ram-air piece on there, so the only thing different in the intake system was the filter being replaced by the ram-air setup. The elbow hose on the turbo was even at the same angle, the exact same position.

Even if someone made some runs with NO filter or intake on the turbo at all, just the compressor with nothing on it, then made some back to back runs with a true ram-air setup like I had, I would bet a lot of money it would be faster with the ram air. Again, keep in mind mine was different then most. Most ram-air setups are more of a scoop-air, like the one shown in this thread. The scoop under the truck helps scoop some cool air up to the filter. Mine was a straight up RAM air. The air coming into the headlight bucket had nowhere to go, and was forced into the turbo.

It just like the big turbo V8 drag cars with the turbo sticking straight out the front bumper. If they're not gaining anything from that, then why don't they just leave the turbo under the hood.

 

[Aeroking]

Re: Ram Air Spooling

wow, didnt expect to see the thread come back.

The scoop pictured on the syclone would be a cold air scoop and not "ram air". The system Mark described would be more of a ram air system. A ram air system utilizes no flow restrictions for the incoming air, and allows the wind speed from the vehicle moving to force air into the turbo unrestricted.

Unfotunately, while your sitting on the line spooling, you dont get the "ram air" effect. The vehicle would have to be moving.

The turbo charger cuases a negative pressure (suction) in the cold air tubing, which pulls air into the turbo. however, with a ram air setup, flowing air smoothly unrestricted with the least amount of bends; (while at speed) you can create a positive pressure in the cold air tubing and assist the compressor wheel in spooling.

If you took the scoop as pictured, and plumbed it directly to the compressor, it would give more of a ram air effect. But looking at it, it looks like too many bends and kinks. The cold air gets blown into the fender, then the filter has to use the compressor's suction to pull the air into the turbo.

 

[It's just a six]

Re: Ram Air Spooling

You can have bends & or kinks in a ram air set-up, it can still get pressurized air to an airbox if you have one.:2cents:

I made a ram air box for my YSR 50 ,installed a magnometer (pressure gauge) & @ 50 MPH the airbox had a reading of .2 @ W.O.T. ,that's 2 tenths of 1 psi,so it was getting pressurized air,not much,but hey I won a roadracing championship w/it.:tup:

 

[foxracin23]

Re: Ram Air Spooling

weather it works or not still gettin cold air and looks pretty kool under the bumper maybe ill go out in the garage this weekend and fab one up

 

[alwayscode390]

Re: Ram Air Spooling

I like the fiberglass cold air scoop ... great idea ---

 

[Windedv6]

Re: Ram Air Spooling

wow, didnt expect to see the thread come back.

The scoop pictured on the syclone would be a cold air scoop and not "ram air". The system Mark described would be more of a ram air system. A ram air system utilizes no flow restrictions for the incoming air, and allows the wind speed from the vehicle moving to force air into the turbo unrestricted.

Unfotunately, while your sitting on the line spooling, you dont get the "ram air" effect. The vehicle would have to be moving.

The turbo charger cuases a negative pressure (suction) in the cold air tubing, which pulls air into the turbo. however, with a ram air setup, flowing air smoothly unrestricted with the least amount of bends; (while at speed) you can create a positive pressure in the cold air tubing and assist the compressor wheel in spooling.

Brandon's on it. Good explaination.

If you look at the video of my AWD 10.71 run you can see (and hear) that I have used the passenger head light support as a ram air setup. I know of several that do this at the track.

My 4" elbow from the turbo is made to turn either rearward to the filter or forward into the back of the head light socket (of which I enlarged the opening to match the 4" elbow).You can hear the turbo spool bigtime...

John

 

[GangBang Malloy]

Re: Ram Air Spooling

as far as the thread is concerned, i'll give u simple answers....


Spoolwise - having a ram air setup will DO NOTHING for faster spool up as that is defined by the turbine side of the turbo and not the compressor.

Hp wise - it HAS BEEN proven that running no air filters what so ever WILL increase power and sometimes even boost. thats why all turbo cars looking for faster times will just take off the air filters for the simplest gains.

 

[Quickstop [UK]]

Re: Ram Air Spooling

The fins are spinning in the wrong direction for you to get any ram effect. If you took the back end off and let it spin freely the turbo would spin in the opposite direction like a windmill.

You need the turbine to drive the impeller.

Now if you're going to put a scramjet in there, well, that's different

 

[mcskibadee1]

Re: Ram Air Spooling

sooooooo, I just looked at my stock crossover air intake and it is cracking at the seam near the filter. I dont want to drive this in fear of sucking in the plastic but I need t have it working by monday. I have a cobra elbow and can get an airfilter but I know you all say that you use the odyssey and I called some local places in L.A. and they have motorcycle batteries but just not odyssey just some other brands that are of similar size. I have pep boys, kragen or auto zone near by, what should i do???.would this be alright to use or should there be something specific I need to look for in the battery.

 

[mcskibadee1]

Re: Ram Air Spooling

sooooooo, I just looked at my stock crossover air intake and it is cracking at the seam near the filter. I dont want to drive this in fear of sucking in the plastic but I need t have it working by monday. I have a cobra elbow and can get an airfilter but I know you all say that you use the odyssey and I called some local places in L.A. and they have motorcycle batteries but just not odyssey just some other brands that are of similar size. I have pep boys, kragen or auto zone near by, what should i do???.would this be alright to use or should there be something specific I need to look for in the battery.

bump, anyone???

 

[SY2455]

Re: Ram Air Spooling

sooooooo, I just looked at my stock crossover air intake and it is cracking at the seam near the filter. I dont want to drive this in fear of sucking in the plastic but I need t have it working by monday. I have a cobra elbow and can get an airfilter but I know you all say that you use the odyssey and I called some local places in L.A. and they have motorcycle batteries but just not odyssey just some other brands that are of similar size. I have pep boys, kragen or auto zone near by, what should i do???.would this be alright to use or should there be something specific I need to look for in the battery.

If you do a search on here, if I recall correctly you can find the measurement for the Odyssey. Then just locate a 12 volt battery with the same size and output, ETC.

 

[SY2455]

Re: Ram Air Spooling

Here you go.

http://www.gotbatteries.com/index.php?m=search&fID=37L105S5

Or you can look for a Kinetik HC600.

 

[mcskibadee1]

Re: Ram Air Spooling

Ok, cool, thanks. Thats what I wanted to know, I found one at motorcycle shop for 110 dollars and all the same attributes.

If you do a search on here, if I recall correctly you can find the measurement for the Odyssey. Then just locate a 12 volt battery with the same size and output, ETC.