Custom Rear Diffuser, ST-205 Options

[Mani]

step 1:

make a base using hardboard



step 2:

measure and cut some MDF fins



set em at an angle of 7 degrees







Step 4:

add a bit of extension to ensure diffuser doesn't become an air brake



step 5:

take off and fastern all screws



Step 6:

Fiberglass the bastward with 2 layers



now i'll let it dry for 24 hours before applying and body filler

right, did some more fiberglassin.......



but whats this ????? 2 diffusers ?????



here's what really happened, used the wooden diffuser as a cast and made a full FG one, cause a wooden diffuser is to "BARRY", the FG diffuser is light as a feather, strong as steel......now gonna use some FG filler to smooth it out.......fits like a glove



the amount of sanding to do was astranomical.......anywayz, enough wingin

all sanded and smoothened



and all painted, cleared three coats but no pic of that, looks the same



looks sooooooo beautiful :wub:

looking at it, i feel as if i have made a baby :sofa: i want it in my living room, damn proud of it :wub: cant look at it eoungh.....

fitted pics









enjoy...i love it

[satelite]

Amazing, good work

[Mani]

i wanted the fins to be more meaty than just pieces of sheet metal, that woulda been too easy, so straight sheet metal for base and cut and rivet the fins on, as for difference, i did all the maths and flow tests in CFD to get the perfect fin angle and height of diffuser from ground, i dont thrash the car a lot so never noticed real difference, but if the needle does go t the right side of the speedo, the car feels as planted as ever

[azian_advanced]

as for difference, i did all the maths and flow tests in CFD to get the perfect fin angle and height of diffuser from ground

good stuff.. i was wondering how you came about choosing 7 deg.