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Old 11-08-2012, 06:33 AM   #1
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Upper Grille Block almost complete

So this is my second draft for upper grille block, it looks much better than the first model. This one needs another coat of rubber than I am using plasti dip for rhe first time, but testing it out on my 38 mile once per week commute today.

I will upload one installed after I get it in, and have time at work.

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Old 11-08-2012, 08:10 AM   #2
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Cool. Interested in seeing the results.
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Old 11-09-2012, 12:30 PM   #3
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Originally Posted by pwrby4d
Cool. Interested in seeing the results.
On a 56 mile highway trip in the am, cold start, I got 35.x mpg, way back already warmed and 46* fahrenheit, I got 38.1 mpg at speed limit both ways.

Needed this to help, this weather is killing my mileage, image of block up today, I hope.
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Old 11-09-2012, 12:34 PM   #4
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Haha, it's 88* here.
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Old 11-09-2012, 12:37 PM   #5
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^ jerk

---------- Post added at 10:37 AM ---------- Previous post was at 10:37 AM ----------

Lol
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Old 11-09-2012, 12:50 PM   #6
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What is this?
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Old 11-09-2012, 02:57 PM   #7
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Originally Posted by Venomouz831 View Post
^ jerk

---------- Post added at 10:37 AM ---------- Previous post was at 10:37 AM ----------

Lol


Ya I am in the desert so this would be of no use for me.. I need just the opposite lol. But It is a cool idea.

It will block off cold air allowing the engine to run more efficient in freezing temps while letting some air through and also may help a bit with aero too I think. Correct?
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Old 11-09-2012, 08:02 PM   #8
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Quote:
Originally Posted by pwrby4d



Ya I am in the desert so this would be of no use for me.. I need just the opposite lol. But It is a cool idea.

It will block off cold air allowing the engine to run more efficient in freezing temps while letting some air through and also may help a bit with aero too I think. Correct?
Yep, helps warm up time which gets the engine to the sweet spot faster. Better power, better efficiency. I am doing it for the aero. The engine bay works like a huge parachute. It could still work in the desert, I would just monitor engine temp. I wound pull it if she ever hit 220, but at 85* at 74 mph on the highway full engine block only got me to 217.



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This is my second concept, third design of it. Not completed, I just had to get it going and make something work. Tomorrow is my full day off, so I am going to try to get some more work done on it. It is going to get done, get rubberized, then black plasti-dip.
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Old 11-10-2012, 10:28 AM   #9
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Ya right now it would be fine in the morning especially. Maybe make a lower air dam that funnels the air up right into the radiator. Could prob do it with some aluminum flashing used for roofs that would be light and easy to work with. Maybe build a box that enclosed the radiator from the front with an opening at the bottom that had a scoop that would force air from the lower grille and right into the radiator... Or maybe you have done that already?
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Old 11-10-2012, 10:34 AM   #10
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Quote:
Originally Posted by pwrby4d
Ya right now it would be fine in the morning especially. Maybe make a lower air dam that funnels the air up right into the radiator. Could prob do it with some aluminum flashing used for roofs that would be light and easy to work with. Maybe build a box that enclosed the radiator from the front with an opening at the bottom that had a scoop that would force air from the lower grille and right into the radiator... Or maybe you have done that already?
I keep it simple and cheap! I work a lot, and she is my daily driver, so I am a bit limited on what I can do.

I will probably always keep the upper on, but when I build the lower, it might come off for summer. Depends on the engine temps. Our radiators breathe really well, unless at the track or extremely abusing it, there is no need for as much breathe space as we have. I know WHY they do it, but it is not practical for 95% of the time.

Getting ready to do my first plasti dip layer. I use coro plast, this election gave me a huge supply. I doubt many will be interested, but I can post the dimensions if anyone wants them.
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Old 11-11-2012, 04:31 PM   #11
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100% complete!

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I think it looks decent. My biggest concern was not blocking my fogs of the pony.
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Old 12-14-2012, 02:41 PM   #12
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Is all the air flow that you are getting coming from the bottom grille ? How does this improve Mpg?
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Old 12-14-2012, 02:58 PM   #13
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Originally Posted by Jrsgrabber50
Is all the air flow that you are getting coming from the bottom grille ? How does this improve Mpg?
Short answer, yes.

Long answer, no. If you have cold air induction this might e easier to grasp, but a lot of air comes into the engine bay through several opening. Upper grille, lower, sides of hood, underneath the engine, and like the space between the grille and the hood, every space there is an opening, air gets in.

In this current millennium, people are kind of dumb. And car companies have the responsibility to make cars dumb proof. So they will take a car, and make sure it fully functions in the worse conditions possible. Like taking a car to death valley in Nevada, to tow 150% of its max tow capacity uphill with the air con on full blast, and absolutely terrorize the car. To make sure there is almost nothing an average idiot could do to damage it or themselves. We do not need such cooling power, it is major overkill.

So why did I do this? The engine bay works like a parachute. Air comes into the upper grille, and gets trapped in the engine bay. As it does escape, it takes heat with it. Engines need heat to run properly, but there is a balance. We do not need that part open, so Inclosedit, which stops a lot of air from getting in and slowing me down, and it helps my engine stay warmer.

So, my Cd is lower without the added drag. My engine hits maximum efficiency sooner, because I retain more heat.

I can go into more detail and site sources, but it really does work. In the summer I did extensive road testing while monitoring engine diagnostics to know for sure it is safe. My tests closed off the ENTIRE front end, ran at 79 mph for 3 hours, and my coolant temp never hit 220*. Since that test, my max speed is 74 mph, my Cd has been dropped from .38 to >.31, and my engine speed for corresponding travel speed has dropped by 2.7 percent.

Simply put, my car worked at 100% with zero air coming in during tests andworked beautifully, now it works at 80% with 65% air coming in, and she is pulling OVER highway mpg in the city.
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