View Full Version : 8 or 10" aero help

04-20-2008, 11:08 PM
ok so im going a diff approach for future box. instead of using 3x 5" aeros... i wanna use just one big one =)

This will be for an 18" mt in a box lets say around 8 cubes?

Whats better an 8" or 10" aero?

8" =4x4x3.14=50.24 in^2
10" =5x5x3.14=78.5 in^2

(14in-16in)*8 = 112-128 in^2 [going by 14-16 in^2 per foot^3]

and correct me if im wrong but ive read that 1 aero is almost equal to a square port that is 2x the surface area(in^2)

So in essence I can go with an 8" aero and keep it to a good tight size or i can go 10" for the largest recommended size

Ive already started on an 8" aero flare.. If it comes out good ill do another and post some pictures... so far it looks OK

Power will come from an orion2500d

04-20-2008, 11:12 PM
ps the aero flare i am making right now will have an outter flare radius of about 14 inches and a depth of 2 before it connects to a pipe

here is a teaser pic before fiberglass

http://img231.imageshack.us/img231/4165/0420081857vw6.jpg (http://imageshack.us)

04-20-2008, 11:19 PM

04-20-2008, 11:21 PM
looks tight, might be in the market for some

04-20-2008, 11:28 PM
im really anxious to see how this will come out too when im done..

04-21-2008, 08:23 PM
I cut the flare off its mold today and added an extra layer of FG. Still needs about another 4 layers before its real sturdy.

Im slightly dissapointed because i took the flare outside and looked from faraway and it seems to be a slightly "unround" circle. I dont think it will have much of an effect but im still gonna try to get it as even as i can with sanding and bondo..

My Styrofoam mold seemed to dissipate underneath so i will just have to use the flare just made as another mold

04-21-2008, 08:24 PM
looks nice

04-21-2008, 08:29 PM
http://img151.imageshack.us/img151/9258/picture001ok5.jpg (http://imageshack.us/)

http://img329.imageshack.us/img329/9030/picture006dz4.jpg (http://imageshack.us)

http://img329.imageshack.us/img329/9853/picture008lp1.jpg (http://imageshack.us)

04-21-2008, 10:14 PM
eh, id say it looks good, I don't know about the port calculations though

04-22-2008, 01:15 AM
im still going to reinforce / add more to the outter mounting ring as you can see its not sufficient enough