Show off your Grille Block

[Istas]

It's great seeing all the different vehicles, and different methods people have come up with!

Here's my contribution:
Before


After; intake area of about 54 square inches / 350 square centimeters


I put a barrier in to keep the air from flowing down into the gap between the intake and the bottom of the condenser; it is notched into the steel frame surrounding the radiator and condenser, and is not touching the condenser itself.
Intake detail


For cold days (-18C and below) I have an extra section to add to block even more area. All removable by screwdriver.

[bikeprof]

Istas, I've done the same type of addition to front of car but was the lower air deflector.
First I used same style screws you did, later I swapped for flat head screws.
Looks way neater that way, replace them such and you'll notice how nicer it looks, good luck!
Good project your air block, looks almost professional...

[PaulB2]

most cars won't see any power benefits from homebuilt forced induction- I explain to customers that if the ECU isn't looking for additional air,

Yet another reason not to block the induction - the ECU may be looking for air at a given pressure from the stock intake tract. Anyway I am not going to block it.

When I had my Sprinter van, driving in Montana at -10F or -20F, I would block the radiator by hanging an empty plastic chicken feed bag in front, after closing the hood on it. It definitely helped, and also let me fit in with the Montana natives better. ;-)

[Istas]

bikeprof: Thank you! It would look neater yes, but it is much easier to remove these with a hex socket driver, than to use a screwdriver (I keep a screwdriver in my car for emergency removal though since I already have one). Flatheads slide all over and phillips are too prone to camming out. Hex socket driver bit for my drill was the best $3 I've ever spent, saves about 10 minutes and a sore forearm every time I go to change the oil.

[bikeprof]

Originally Posted by Istas

bikeprof: Thank you! It would look neater yes, but it is much easier to remove these with a hex socket driver, than to use a screwdriver (I keep a screwdriver in my car for emergency removal though since I already have one). Flatheads slide all over and phillips are too prone to camming out. Hex socket driver bit for my drill was the best $3 I've ever spent, saves about 10 minutes and a sore forearm every time I go to change the oil.

Yes, I guess as the old adage would remind: walk a mile in the shoes..., then you'll find out why they are worn !
Oil changes ARE important...

[Cd]

Istas - love the look !

[Istas]

PaulB2: Excellent look. XD

Cd: Thank you very much. Spent a lot of time cardboard-templating that upper part so it would be close to the hood but not require removal to open it.

[ev99saturn]

I used 1/4" acrylic sheet to block off 4 openings in the front of my car, and also added the air dam. The large oval opening, referred to as the 'parachute' by a friend seems like it should be making a difference although I haven't measured any economy change. The sheets are attached by either rivets, or epoxy on the 3 smaller ones. Also blocked off the side louvers.

The car is electric so airflow for cooling is not necessary. A small radiator can be seen in the front, which is for motor controller cooling.

Wayne

[MPGomatic]

'99 Civic HX. First two stages …

Upper Grill Block:

https://www.youtube.com/watch?v=RVzra5e4rpc

Aero Bumper Mod (with smaller lower grill opening):

https://www.youtube.com/watch?v=hFlvSUh7F3Q

I'm still working on the lower grill block for the winter. This abnormally warm East Coast weather has to come to an end at some point.

I need to rework the upper grill block with a heavier weight plastic sheet. Once I get that done, I might wrap it in carbon fiber. Just for the heck of it. =)

[Prophecy99]

just so i get this right, grille blocks work better in colder winter months right?