Keep in mind, the sanctioning body for the truck series likes drag, keeps the speeds down.

There was an Aerobytes article from Race Car Engineering (Which used to be online, but has been taken down) that had a quote that I found very interesting, enough so that I saved it.

"a shallow (20 degree) spoiler as long as 60mm is capable of actually reducing the car’s drag while reducing rear lift or creating modest downforce".

That was written in regards to a sedan with the spoiler on the trunk lid, so I don't know if it would apply to your application, but it may be worth trying.

The autohor of that article has a book, that may also help.
http://www.amazon.com/Competition-Car-Aerodynamics-Practical-Handbook/dp/1844252302

Tom

Have you started growing your mullet yet?

Where's the duct tape?:D

What a drag ;)

Thanks Tom, that kind of answers the spoilers I've seen on cars like the Mustang and Altima.

Pictures I've taken recently:
http://i184.photobucket.com/albums/x...bile/MUST1.jpg
http://i184.photobucket.com/albums/x...bile/MUST5.jpg
http://i184.photobucket.com/albums/x...bile/MUST3.jpg

http://i184.photobucket.com/albums/x...le/Alt-big.jpg
http://i184.photobucket.com/albums/x...Alt-Detail.jpg

your truck is a 4x4...now put down the duct tape and back away from the truck..sloooowly, just back away.

Krach, next it needs to go lower...

http://i518.photobucket.com/albums/u...rachtruck3.jpg

...or higher...

http://i518.photobucket.com/albums/u...rachtruck4.jpg

Right now, it's just too middle-of-the-road.

That's "Rice-tacular!"

One memorable quote I took away from a terrible S-10 forum I tried posting at for a while was in response to the question of why members raised and lowered their trucks. The response was; because stock sucks.

I just did not fit in there.

To be honest, I don't even like lowered 911's.

I think this is because I grew up around rail road tracks in a industrial area. Most of the local cars within a few years suffered from broken rear leaf springs and drove around half dragging their butts. It's a memory of poverty I choose not to relive every time I look at my own car.

Raising the truck is just silly, it's already a truck raised above two wheel drive models., and just enough.

http://i184.photobucket.com/albums/x...k%20Up/MT1.jpg
http://i184.photobucket.com/albums/x...k%20Up/MT2.jpg

Dude... I was jussssst kiddin.' :)

I used to have a ZR-2 S-10. Those are good trucks!

A cotter pin wiggled out and was lost, so I pulled the other one. I soon discovered this was a method for recording pressure/suction on the rear spoiler.

The rear spoiler is originally set near straight up, it takes less than one pound of pressure to get it to move, a couple of pounds to flatten it out all the way. Photos taken after max speed listed on picture.

http://i184.photobucket.com/albums/x...k%20Up/S60.jpg
http://i184.photobucket.com/albums/x...k%20Up/S70.jpg
http://i184.photobucket.com/albums/x...k%20Up/S80.jpg

I will be installing a rubber cork plug with a hole in it on the tail of the cotter pin to keep it from riding up again.

Posting pictures of the flip down spoiler and the rubber plugs I hope keep the cotter pins in place.
http://s184.photobucket.com/albums/x295/kach22i/S10%204x4%20Pick%20Up/
http://i184.photobucket.com/albums/x...k%20Up/RS0.jpg
http://i184.photobucket.com/albums/x295/kach22i/S10%204x4%20Pick%20Up/RS1.jpg
http://i184.photobucket.com/albums/x...k%20Up/RS2.jpg
http://i184.photobucket.com/albums/x...k%20Up/RS3.jpg
http://i184.photobucket.com/albums/x...k%20Up/RS4.jpg
http://i184.photobucket.com/albums/x...k%20Up/RS7.jpg
http://i184.photobucket.com/albums/x...k%20Up/RS5.jpg
http://i184.photobucket.com/albums/x...20Up/PLUG1.jpg
http://i184.photobucket.com/albums/x...20Up/PLUG2.jpg

If anyone has an alternate idea, perhaps an improvement on the pin/plug arrangement, please feel free to speak up. I'm not 100% happy with it, something like a magnetic catch would be nice. Retractable and power stuff is out of my area of experience and budget.

I can set it at various angles, I think slightly upwards of 45 degrees is what I'm settling on.

I saw the truck (with George and his lovely wife) as they visited yesterday and the truck looks great! I miss the old zebra-striped Samurai, so I think the S10 should be zebra-striped too!