Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

seuadr · 08-05-2022, 02:50 PM

i found that while looking for something like this:

late 70's early 80's transvans - fiberglass shells and kinda a bit aerodynamic at least. i've seen several of them around here gutted for projects and then the owners lost interest and are selling them cheap (looking pretty hard at one for 500 right now...)

maybe maybe?

the one i'm currently looking at has a 318, and is a 79, which means it has either a 3 or 4 speed no OD trans - that is problematic.. but newer, hydraulically actuated 4 and 5 speed OD trans that will bolt up are out there, and, a 318 carb to EFI conversion with a stand alone controller can be done for ~700 dollars.

got me thinking...

i've been reading on diffusers vs pans for the underside, and it seems like an either/or proposition - so if i were to make up a front and rear diffuser for the above, i wouldn't also need to worry about a pan or visa/versa?

i presume that a boat tail or offset box would still give me benefits as well even though the back appears to need to be a little more sloped to fit inside the template better?

08-05-2022, 02:50 PM	#2 (permalink)
seuadr EcoModding Lurker Join Date: Aug 2022 Location: Eaton Rapids, Michigan Posts: 74 Thanks: 39 Thanked 39 Times in 34 Posts	i found that while looking for something like this: late 70's early 80's transvans - fiberglass shells and kinda a bit aerodynamic at least. i've seen several of them around here gutted for projects and then the owners lost interest and are selling them cheap (looking pretty hard at one for 500 right now...) maybe maybe? the one i'm currently looking at has a 318, and is a 79, which means it has either a 3 or 4 speed no OD trans - that is problematic.. but newer, hydraulically actuated 4 and 5 speed OD trans that will bolt up are out there, and, a 318 carb to EFI conversion with a stand alone controller can be done for ~700 dollars. got me thinking... i've been reading on diffusers vs pans for the underside, and it seems like an either/or proposition - so if i were to make up a front and rear diffuser for the above, i wouldn't also need to worry about a pan or visa/versa? i presume that a boat tail or offset box would still give me benefits as well even though the back appears to need to be a little more sloped to fit inside the template better?