2007 4runner v6 4wd insights
 

Can any give me some possible insights into what type of aero mods i should consider on a 2007 4RUNNER V6 4WD.

I am of the impression that the following items could help.

1)Wheels Spats
2)Radiator Block
3) Flat Bottom
4) Electric Radiator Fan
5) Scan Gauge

What is the possible percent gain in economy of the aforementioned items?

I want to keep the car functional. So with that in mind please give me your other ideas to improve economy and how much you think they'll help.

Thanks

Does it have manual front locking hubs? Not having to spin the front differential and driveshaft can help fuel mileage and decrease wear too

They are not manual.

% gain
 

1) originally,wheel spats meant moveable/articulated wheel covers.
This Adler has close to your drag coefficient and you can see the difference in drag for different 'spat' combinations
http://i1271.photobucket.com/albums/...titled3_22.jpg
2)if we presumed that your cooling system constituted 12% of your overall drag,then you might be looking at a 6% drag reduction (3% mpg hwy).
3) worse case scenario for a belly pan would be about a 6% drag reduction (3% mpg hwy).
4) if your thermo-clutch on the cooling fan is working,your fan shouldn't be operating above 40-mph,so an electric fan may not help much cruising down the highway.But it will help during all accelerations/transient engine operation on warm/hot days below 40-mph.especially if the AC system is on.
5) if nothing else,the Scan Gauge will tell you what your mods are doing without having to burn a whole tank of fuel.And you can experiment with momentum driving (hypermiling).

i suppose i was referring the little bits of extra material in front of the well arches to help redirect air.