View Full Version : The Paseo finally gets a grill block

02-18-2009, 07:25 AM
Its been a long time coming, but the Paseo finally has a grill block. I brought out the coroplast last night and made a front grill block to improve aerodynamics. The car already coasts pretty good, but it sure can't hurt. I blocked off quite a bit of open area.

Here is a pic of what the grill looks like. I forgot to snap a pic before I started working so I took one of my other Paseo.

I got a rough cutout and hung it with some zip ties.

To cut the radiused ends I put a flashlight behind the grill and traced roughly where I should cut. I then trimmed it all up with a utility knife and kept widdling away until it was a nice fit.

After it was all said and done I added two more zip ties to the end and one in the middle to keep everything held down well. Here is the result.

On the way to work the coolant temps were well within normal. Ambient temp was around 30F. I also wasn't able to EOC due to a very drained battery. So, coolant temps should really be no problem once I get that fixed.

Right Lane Cruiser
02-18-2009, 07:52 AM
Nice work, Tim! :thumbs_up:

02-18-2009, 08:24 AM
I like the flashlight trick!

02-18-2009, 02:02 PM
I like the flashlight trick!

I agree!

For some reason, I want to take a thick Sharpie and draw some teeth on your grill block. Maybe I've been reading too many posts from TheForce (

02-19-2009, 07:19 AM
Haha, no teeth planned atm.

Day two of the grill block shows its definitely not too large. Yesterday it was about 30 degrees out and I hit a max coolant temp (according to the SG) of 207. In summer, without the grill block, I was hitting 212 so I'm actually running cooler than summer still. I'm not sure why the SG is reading high to be honest, it has a 195 degree thermostat in it. Anyway, today it was 6 degrees out and the coolant didn't even hit 180 on my way into work this morning! I gotta say I was a bit surprised by that.

03-19-2009, 10:13 PM
In preparation for the warmer weather, I decided it would be a good idea to have a radiator fan indicator light to see when the fan kicks in. With the large and full grill block this will let me know if I need to open it up or not.

The implementation was pretty easy. I pulled the radiator relay out and shoved the small wire into the blade connector end of the closed side of the relay. Then, I just grounded the other wire on the negative battery terminal. The light is an LED with a restistor. When the fan kicks in, the light gets power and lights up. Pretty simple, and pretty ugly, but it works.

03-20-2009, 09:34 AM
Nice! Quick, easy, functional. For the lazy among us, what are the specs on the LED and the resistor?

03-20-2009, 09:39 AM
Thats a great question. The LED is simply one I had laying around from a scrapped computer case. I have no idea what the specs are. The resistor is a 470 ohm resistor that I had used on another car/led project.

03-20-2009, 09:53 AM
Thanks. I too have some of those LEDs lying around somewhere.

04-21-2009, 02:03 PM
I got the radiator fan to kick in on Friday afternoon. It was around 70F out and the fan kicked in just before I was about to get off the highway (after about 20 minutes of highway driving). The temps immediately dropped since there are holes in the plastic pan between the bumper cover and radiator support/frame member. I'm not sure where I'll take it from here. But, for now the block stays on.

04-22-2009, 08:45 AM
My friends say its Spring take off the block.
I tell them if the Radiator fan not running its OK.

05-07-2009, 07:27 AM
Another update, I've now driven the car on a ~80 degree day. My work commute still poses no problems with the huge grill block. The fan may turn on once or twice just before I get off the highway, but its nothing to worry about. I did however figure out that if your coasting and the fan comes on, you need to kick the engine back on to circulate the coolant. If you don't, the fan just stays on cooling the coolant in the radiator, and none of it gets circulated past the sensor to cool it down.

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