Might re-read Tim's post. That's exactly what he said. Need to cover the opening.

Yes, Stan has exceeded 165mph.

 

Very good grasshopper!

 

Do you mean the lower opening in the DG part? It looks to be the perfect size for the intercooler. If it were a little smaller, I would be happier. But it still looks to me way more aero than the stocker.

The big aero flaw that I see is the foglight openings on the stocker. And the lack of a splitter on the bottom of the air dam. Maybe Ford tested it in the wind tunnel and I'm FOS. Aerodynamics are tricky. Dunno.





Frontal area is important to be sure, but to add downforce and reduce drag, we want to allow as little air as possible to get under the chassis. That's where I am going. Air dam as low as possible to the ground, 1-2" rake to create a low pressure zone under the truck in the rear. Will it work that high off of the ground? Who knows. But it won't hurt.

I have always thought that the stock air dam looks like crap anyway. The DG piece just looks much cleaner to me (picture the above with a shaker hood ).

I agree that the radiator area is stupidly big. But what can be done about it?

 

I thought so
THATS OUR STAN

 

and thats why i like crunchy Jiff over the creamy

 

this:




make a piece to block off a large portion of the upper grille opening. some blcok off the whole thing, but that would only work on a drag truck. you could make one like the other two that have some sort of opening in them, just smaller. stan has his blocked off too. i think he made an air dam to dirct airflow to the radiator.

 

holy crap!

The second of the three truck pics, is that the air filter out the fog light hole?

 

that's what it looks like. definately a true cai.

 

now that was damn funny!!

 

so explain to me how if you had a 50hp motor hooked up to some crazy 25 gear tranny you couldnt go 176mph? it can only be a matter of gear ratio. power only limits how fast you get there

 

Not so. The wind resistance has a force that can be measured in HP (some car tests calculate "road HP @ X MPH"). The wind resistance would be several hundred HP at triple-digit speeds. If you took the road HP needed at 100, it might only be about 150HP (just guessing here). So you could, with the right gearing, take the truck up to 100 with only a 150 HP engine. But you could not go any faster than that.

On my 76 Honda Accord, I could go about 100 in 5th, but about 110 in 4th. But downshifting into 3rd (even if the redline of the motor would allow it) would not get me any extra speed. 4th was faster than 5th only because 5th took the motor out of its powerband.

Think about it for a second. If your theory were correct, Bonneville records would be about gearing, not power.

 

im just saying if the Bonneville runs took place over the course of 100 miles, i think it would be about gearing. but they dont so its not. think about it

 

I read in PHR today about aerodynamic's and they said, "A vehicle requiring 80 hp to maintain 100 mph would need 8x's that amount to reach 200 mph = 640 hp". I don't think gearing would aid the HP need. Now multiply that by another 8 to reach 300 mph!!!
Bryan

 

Gearing is only one function when to comes to speed; when it come's to pushing something through an atmosphere that resists it, a gravitational force against it's motion, friction and pumping losses that are inherent in the device that supplies the power and friction and efficiency losses in the transmission systems which include the tires on surfaces - it's all about power. You get to point to where because of the air resistance, gravity and these other inherent mechanical losses - that they tend to overcome the power applied - and you peak out and you reach a maximum speed. It's not a lot different than riding a bicycle. If you ride one with a lot of gearing - you're going to find a "high" gear where you can barely supply energy to push down on the pedal - and you could ride it for 100 miles - and you're not going to exceed some maximum speed that's dependent upon the maximum power you can put to it. I can take my 1994 Ranger with it's 3 liter V6 and with it's lowest current gearing make a top speed of about 85-90mph - and if I'm sure if I took it to Talladega and ran it for hours on that 2.5 mile track, I'd never top that 85-90. If I took to Bonneville - I wouldn't top the 85-90. I wouldnt be going any faster on 5th mile there as on the first mile - just doesn't have the power to go any faster and that's it. Before I'd top that 85-90 speed, the engine would give up, ha, ha.

 

well if you had 8 gears you could hit 176