The Oldsmobile Connection

speedy266 · Joined: 25 Jun 2003 Posts: 347 Location: Ontario, Canada

I installed a ram air setup last night. I bought 2 45 degree bends and pvc piping. Stock theres a plastic piece that extends on the side of the rad and fits into a oval opening behind the driver side high beam. I put a 45degree bend on it and went behind both lights. Than used another 45 degree bend to have it facing straight right behind the grille. Can even see it. Currently i have the 45degree bend facing halfway down because i wasnt sure what would happen in the rain. The pvc pipe is not clamped to the stock plastic piece, its just snugly fits right over it. I was thinking the most id get would be alot of mist if i was driving behind a semi or pick up truck with no splash guards. Considering my under hood temps are extremely hot the mist would vapourise before it went into the engine.

Right now the opening is the size of the pipe with is 2.5inches, i wanna get a collecter that collects air and directs into the pipe, but i wanted some advice about the water/mist issue.

Theres a noticeable difference, it picks up faster and the rpms are lower on freeway driving.

88 Coupe · Posted: Fri Jul 08, 2005 2:58 am Post subject: Re: Ram Air Setup

Hi speedy266, hello All

Quote: .......... facing straight right behind the grille. Can even see it..........
Any obstructions (a headlight) will lessen the ram effect.

Quote: .......... Currently i have the 45degree bend facing halfway down because i wasnt sure what would happen in the rain.........
If the 45 is at the opening, you'll get less than half the ram, compared to straight ahead.

Quote: .......... The pvc pipe is not clamped to the stock plastic piece, its just snugly fits right over it..........
PCV should fit flush with, or inside the stock piece.

Quote: .......... I was thinking the most id get would be alot of mist if i was driving behind a semi or pick up truck with no splash guards..........
If you follow at a safe distance you'll have no problem.

Quote: Considering my under hood temps are extremely hot the mist would vapourise before it went into the engine.......... Quote: ......... i wanted some advice about the water/mist issue ..........
Cool mist can improve economy, but can hurt power. If you are not racing in the rain, no problem.

Quote: ......... i wanna get a collecter that collects air and directs into the pipe .........
Megaphone shape is best. The bigger it is, the more ram you get. It should be mounted as low as possible as liquid does not flow up.

Air for both my Coupes enter stock fresh air intakes under my headlights with 4" A/C duct going into both sides of their sealed air cleaners.

468 has a 14" X 3" generic paper filter. 439 has a 14" X 4" K & N.

2+ MPH increase in the 1/4 with both setups. No difference at speeds under 50 MPH.

Quote: ........... the rpms are lower on freeway driving.
Not possible without a tire size or gear change.

Regards, Norm

speedy266 · Joined: 25 Jun 2003 Posts: 347 Location: Ontario, Canada

Hey

Right now the only obstruction is my grille, thats where the opening of the piping sits right behind.

The 45 degree bend at the end is to make it sit parrallel with my grill, if i were to face it straight instead of halfway down, would that still affect the whole half ram affect.

Sorry i didnt make it clear, i meant to say the stock plastic piece fits snugly over the pvc piping i added.

Megaphone design, wats that look like? where could i find that design.

Lower rpms are not possible?? I thought that made sense because the engine has to work less now, before it had to work more to pull in the air, now the air is is being pushed in slighty faster.

88delta88 · Joined: 09 Jun 2003 Posts: 2401 Location: Canada

speedy266, unless your locking torque converter isnt locking, the engine and the wheels will be LOCKED just like a manual transmission on the highway. RPM's will be constant at 100km/h.

88 Coupe · Posted: Fri Jul 08, 2005 6:08 pm Post subject:

Hi speedy266, All,
Quote: ........... The 45 degree bend at the end is to make it sit parallel with my grill, if i were to face it straight instead of halfway down, would that still affect the whole half ram affect. Quote: Megaphone design, wats that look like? where could i find that design.
For best results, the inlet tube must be parallel to the ground as shown here.

The narrowing of the tube increases the amount and velocity of the incoming air, which further enhances the supercharging effect.

Quote: Lower rpms are not possible?
To expand on 88delta88's statement, the engine might be making more power but it's at the same RPM.

Regards, Norm

speedy266 · Joined: 25 Jun 2003 Posts: 347 Location: Ontario, Canada

making a megaphone/collector design, out of aluminum or plastic? What would be better for intake tubing aluminum or plastic, i was thinking the aluminum would be hotter.

88 Coupe · Posted: Sat Jul 09, 2005 12:33 am Post subject:

Hi speedy266, All

Residential A/C duct, aluminum flex.

Check out the transitions and register boxes at your local Home Depot, Lowes, etc.

Mods can be made with sheet metal shears. Fill the seams with caulking compound.

Regards, Norm

Brianritchie21787 · Joined: 08 Feb 2004 Posts: 266 Location: Tolland, CT, USA

i found this web site especially helpful in designing a ram air. all the math is done for you (for those who never passed algebra) i wouldnt go so far as to add four intake hoses like the author did, but its a good reference.

Brianritchie21787 · Joined: 08 Feb 2004 Posts: 266 Location: Tolland, CT, USA

http://www.karlsnet.com/mopar/ramair.shtml

my bad, clicked the send button too soon.. enjoy

88delta88 · Joined: 09 Jun 2003 Posts: 2401 Location: Canada

cool setup... do you really think he gained 34HP with that mod?

Joes 94 cutty · Posted: Tue Aug 23, 2005 5:13 pm Post subject:

awsome man,...
-Joe

Brianritchie21787 · Joined: 08 Feb 2004 Posts: 266 Location: Tolland, CT, USA

speedy266 wrote: making a megaphone/collector design, out of aluminum or plastic? What would be better for intake tubing aluminum or plastic, i was thinking the aluminum would be hotter.

i took a big funnel, cut it in half and aluminum taped the over the whole thing to my aluminum ducting. ran the ducting through the front left fender and it sticks out about 3" under my parking lamps, with only one, gradual 90 degree angle. where it connects to the irregularly shaped hole in my air cleaner i used a vacume cleaner attatchment (yes, a vacume cleaner attatchment) to make it air tight. ill take some pictures next time buy some poloroid

88 Coupe · Posted: Tue Aug 23, 2005 8:14 pm Post subject:

Hi All,

88delta88 wrote: cool setup... do you really think he gained 34HP with that mod?
I don't think so, Tim.

Edit: Reread it and found some useful information. Author seemed sincere, but lacked the knowledge to conduct and describe his tests.

No mention of velocity or pressure, only flow. If one leaves out 2/3 of an equation, would one expect an accurate conclusion?

karlsnet.com wrote: I acquired several different scoops, and tested them with a High Power Turbo Honeywell fan and a strain gauge I made.
How very scientific. Accurate discription of the apparatus and how the measurements were made should be included. Images are always a big help.

He pressurized his crankcase and lowered the oil temp by 10 or more degrees?

Have I ever mentioned my opinion regarding misinformation on the internet.

Regards, Norm

Brando · Joined: 06 Jun 2003 Posts: 3051 Location: Michigan, USA

Hmmm...just reading through, as I'm having thoughts of ram air hood for the delta....

Did you call 88delta88, Tim? His name is Aaron.... :lol:

TOC Admin
Brando

88 Coupe · Posted: Sun Nov 06, 2005 10:30 am Post subject:

Brando wrote: Did you call 88delta88, Tim? .........
Nope, I would have called him 88delta88.

How quickly they forget.

Regards, Norm