[bamf105]

oh ok ic than ill just keep my stock one theres no point in changing it out now going about to make it more better than how it is sounds confusing as heck l

[GT speeder13]

I made a direct air column for my intake, cause I was always frustrated with this same problem. I used a drier vent, and zip ties... let me see if I got any pictures, haha.... by the way I get 1mpg more on the highway, and my intake has not felt "hot" since I have done it!

The hose connects on the bottom right side of the lower grill, and works its way around the radiator and up to the intake. The hardest part is making the metal hose bend enough to fit in the slot where the intake is. It took me a total of 45 minutes, that's including figuring out where to mount everything!

I tested it with a 5mph shop fan and I could feel ~2-3mph breeze out the other end of the tube. So if the math stays the same cruising at 55mph with result in your intake breathing cool air with an ~25-30mph breeze.....

[travelers]

Originally Posted by sqidd

You are 100% right. The restricted airflow improves cooling. Take a look under the hood of a FR500. The sides of the grill are blocked off for 6-8 inches.

In addition to that, peak pressure in front of the radiator (which = peak cooling) is achieved by restricting the inlet and then opening it up behind the restriction. The angle that you open it up at is determined by what speed you want it to be the most efficient at. I am setting mine up at 8 deg which will be at maximum efficiency at 100mph. Every other speed will be a compromise. You then need to seal the “sides” of your restriction or “duct” to the face of the radiator to ensure the air goes through it instead of around it. A system like this will improve cooling by a factor of two in most cases. It also improves the aerodynamics of the car dramatically because the only air you are getting under the hood is going through the radiator.

What he said. I don't need to say it again.

[2005 white s197]

Originally Posted by sqidd

Center mount lights will hurt cooling. The most efficient cooling setup can be thought about in really easy terms. The trick is to start at the radiator and work your way forward instead of the grille back though.

You want to start at the edges of the radiator (top/bottom, and sides) then figure out what angle you want your duct to be based on what vehicle speed you want to tune for. For a pure street car tuning for 75mph would probably be best. A good duct design only works “perfect” at one speed though. Everything above and below that speed will be less efficient than what it is set up for. Once you have the speed you are setting up for you calculate the ducting angle (the angle that it will neck down toward the grille) and then see if that angle will match up to the back side of the grille. There will be no problem getting the ducting to contact the grill in front the sides of the duct. But if you use the same angle on the top and bottom sides of the duct you will fid the grill is not tall enough to meet up with the duct. In this case you are trapped into running the upper and lower sides of the duct from the upper and lower edges of the radiator to the upper and lower edges of the grille. Effectively using as much grill and radiator surface area as possible.

Once you have the ducting butting up against the back side of the grill you need to build block off plates behind the grill that run from the outside of the duct to the outside edges of the grill. When you set it up like this the only air the going through the grill gets through the radiator. No “stray” air is introduced under the hood (you still need to block off where the hood meets the cheesy black plastic core support cover too though). This will force all of the air that is not going through the rad to now be used for downforce (as long as more is going over the car than under).

If you block off anything in the center of the radiator you will be dramatically be reducing the ducts ability to produce pressure in front of the rad. If you are in love with the center mount lights you could always make two ducts to feed the rad, one on each side of the lights but you will be shorting yourself a lot of efficiency compared to the one big duct method.

Where did you obtain your reseach that center fog lights will "hurt" cooling?? I've been running 3D Carbon center mount grill lights for two years in Florida and my temp. actually dropped. Prior to install I was seeing 219-225 degrees in 95-98 summer temps. after the install it reads 199-215 degrees in August. Please share this information so as not to confuse others. Thanks !!

[sqidd]

Originally Posted by 2005 white s197

Where did you obtain your reseach that center fog lights will "hurt" cooling?? I've been running 3D Carbon center mount grill lights for two years in Florida and my temp. actually dropped. Prior to install I was seeing 219-225 degrees in 95-98 summer temps. after the install it reads 199-215 degrees in August. Please share this information so as not to confuse others. Thanks !!

Next time spend a little less time thinking of a way to tell everyone about your sweeeeeeet foglights and read the post you are quoting.

I’ll give you a small hint. The two key words here are “duct” and “has”. Good luck………Oh yeah, sweeeeeet foglights dude!
.

[2005 white s197]

Originally Posted by sqidd

If you don't like my posts go ahead and ignore them.

So were in my question does it "imply" I "don't" like your posts????
Its just the "opposite", I enjoy "all" posts here at AFM. What I don't like is "Unsubstantiated" BS. And on top of it a reply that is also BS. What makes this site different than the others are the members that refrain form mis-leading statements. Now again I ask you, please share your research information or correct your statement. Your supposed to be a "trusted" member at your level. You are supposed to be an example to the lower level members with your information.

[sqidd]

Originally Posted by 2005 white s197

Where did you obtain your reseach that center fog lights will "hurt" cooling??

Since you managed to quote my reply while I was editing it here is the answer to your first post:

Daytona

[2005 white s197]

Originally Posted by sqidd

Next time spend a little less time thinking of a way to tell everyone about your sweeeeeeet foglights and read the post you are quoting.

I’ll give you a small hint. The two key words here are “duct” and “has”. Good luck………Oh yeah, sweeeeeet foglights dude!
.

Thanks for your reply.............all is good !!!

[Mark25]

I figure that the engineers who designed the grill are a bit smarter than me...so I won't mess with it...(who knows, drilling out the holes might cause whistling noise, excessive water into the engine compartment, improper air flow, etc.)...I'm not messing with mine.

[rugedraw]

I'm glad I saw this thread, because I thought of drilling mine out, too. Based on what I've read here, this is what I gathered; and it makes sense.

Picture it this way:

With the grill stock, the air is funneled through the opening which causes a very specific flow of air right through the middle of the radiator.

If you drill out the blocked openings, then the same amount of air (or more) will flow through a higher surface area, but at a slower speed and therefore, not go through the radiator completely. The air has to pass through the radiator to effectively cool the water; not around it.

I'm not sure if I did a good job of explaining it, but it makes sense in my head. I'm keeping mine how it came from Ford.

Edit: The GT500 grills follow the same design as the GT/V6 grills. They are blocked off at the ends, too.

[bamf105]

what about the center foglight mesh grill from Mr body kit.com would that work or not ?