Donaldson Air Ram 4" Scoop H008154, US Source Found !

[74M35A2]

So the inlet area of the 5" Donaldson Air Ram scoop actually has less area than the ugly military mushroom cap. The Donaldson measures 5.5" x 6.5", and the mushroom measures 9" diameter with a 5" pipe up through it. Inlet velocity is probably pretty slow across both regardless, and in my opinion the Donald Duck looks way cooler, but if you are buying it to increase inlet area, it is a step backwards. I doubt the "ram air" effect is enough to make up the difference, as these trucks top out at 67mph or less. Just FYI.

 

[infidel got me]

I would think that any forced air into the intake pipe would be an improvement vs. a flat screen not even facing forward. I may be wrong but, in my mind that sits right with me.

 

[MtnSnow]

When you take into account the density of the wire mesh screening on the stock mushroom cap let alone the carc over-spray onto most of them, the actual total amount of air passing ability (CFM) is greatly diminished in comparison when compared to the Snorkel. Then we can get into another subject called the Venturi effect (airflow dynamics) where the air flow going across the stock mushroom cap when driving can actually pull air away from the intake where as with the snorkel the air flow is directed into the intake thus increasing the total CFM capability .

 

[Andyrv6av8r]

What I want to know is does the air restriction indicator in the cab still show half restriction with the snorkel?

 

[MtnSnow]

That is due to the length and the bends in the intake tube.


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[ROCKWELL-C60]

Have yet to receive mine from Suncoast, got email stating due to high demand could take up to a week longer.

 

[infidel got me]

Air

Have yet to receive mine from Suncoast, got email stating due to high demand could take up to a week longer.

74M- See what you started. Those poor guys at Donaldson cant keep up. lol Rockwell it will get to you, Donaldson just put on a 3rd shift.

 

[red]

Have yet to receive mine from Suncoast, got email stating due to high demand could take up to a week longer.

Got the same message after I ordered mine. Arrived in the mail today

 

[74M35A2]

74M- See what you started. Those poor guys at Donaldson cant keep up. lol Rockwell it will get to you, Donaldson just put on a 3rd shift.

I know, right? They got 3 orders in a week. It should be like rental wedding tuxes. Groom's is free when best men rent theirs, but didn't happen. Love the avatar, that's who I'm named after, but I'm not nearly as cool as he is.

 

[ROCKWELL-C60]

Got mine yesterday now all I have to do is mount intake stack.

 

[adamsoffroadperformance]

Received my 5'' snorkel for intake yesterday. Perfect fit and looks bada$$. Ordered it from suncoast truck spares, total was 87.10 shipped to my door. There link is www.suncoasttruckspares.com.au

 

[infidel got me]

I had pics. on post #34 but here are a few more!

 

[Valence]

They must of changed something, I'm seeing "Economy Air: $33.38" for a total of $106.38 for the 4" version for us deuce boys.

 

[74M35A2]

I think there are Chinese ones available, does it say genuine Donaldson and/or have the lower case d with a circle around it (their trademark)?

 

[red]

They must of changed something, I'm seeing "Economy Air: $33.38" for a total of $106.38 for the 4" version for us deuce boys.

Donaldson's site is in Aussie dollar as well

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[infidel got me]

Today I started my truck and was standing on the step looking for my cellphone and I could hear my turbo's faint whistle through the new snorkel. I did have it idled up a hair (maybe 1100 to 1200 rpm) waiting on it to build air. I never heard that before with the mushroom cap on it. So, with that said-- I think it was money well spent. I have to install my new led taillights before a good road test, but I will let you guys know if it seems any different.

 

[STLZombieHunter]

Thanks for the info. I just ordered mine today as an extra Fathers Day present. $80.23 USD shipped.

 

[Jbulach]

Donaldson Air Ram 4" Scoop H008154, US Source Found !

So the inlet area of the 5" Donaldson Air Ram scoop actually has less area than the ugly military mushroom cap. The Donaldson measures 5.5" x 6.5", and the mushroom measures 9" diameter with a 5" pipe up through it. Inlet velocity is probably pretty slow across both regardless, and in my opinion the Donald Duck looks way cooler, but if you are buying it to increase inlet area, it is a step backwards. I doubt the "ram air" effect is enough to make up the difference, as these trucks top out at 67mph or less. Just FYI.

Is the difference in size irrelevant, due to the fact that they are both larger than the 5 inch intake?
Also would be very curious to know what the air velocity in MPH is inside the 5 inch stack is at 2100 RPM?
I would think that would tell you if you're getting any of ram effect,? if this was calculated…
Way be on my limited Mathmatical capabilities!!!

 

[red]

Been running one on my m816 wrecker with 395's. If I maintain 2000rpm on the highway I'm getting a bit over 6mpg. Elevation up here is right around 5000ft. Considering most say the wreckers get 3-4.5mpg on the highway I figure the air scoop and the modified air filter are helping.

 

[74M35A2]

Today I started my truck and was standing on the step looking for my cellphone and I could hear my turbo's faint whistle through the new snorkel. I did have it idled up a hair (maybe 1100 to 1200 rpm) waiting on it to build air. I never heard that before with the mushroom cap on it. So, with that said-- I think it was money well spent. I have to install my new led taillights before a good road test, but I will let you guys know if it seems any different.

Good thing you are not handler of the air impact on any NASCAR pit teams, it is taking you a month to put LED tail lights on. Quit working on Skeletor's lawnmower and let us know what's up with this snorkel, Cletus.