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Old 09-07-2010, 08:52 PM   This thread is in the EcoModder Project Library | #1 (permalink)
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Soul Help (Grill block)

Put on the grill block for aero testing:







So it does look statistically speaking it does do some aero help 0.35mpg whoopeeeeee... I'm sure it helps warm the car up faster in the morning, but how do test that for MPG improvement? I've watched the scan gauge and it shaved 2miles off the warm up time so it's doing something... But I have no clue as to MPG testing. Any Ideas?

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Old 09-07-2010, 09:28 PM   #2 (permalink)
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1% gain is better than none!

For a free mod, my colorplast, paint, screws, and help that is not bad. My grill block gets me .71MPG or 1.55%. You have a flatter front end so I would expect yours to be less (also a smaller opening).
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Old 09-07-2010, 10:02 PM   #3 (permalink)
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I think I measured 2 to 3 percent improvement after the upper grill block. I also blocked some foglight openings.

More testing!
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Old 09-07-2010, 10:15 PM   #4 (permalink)
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Quote:
Originally Posted by skyl4rk View Post
I think I measured 2 to 3 percent improvement after the upper grill block. I also blocked some foglight openings.

More testing!
Can you add your data to the Wiki? We are always looking for more data for the mods.

Grill block partial or full - EcoModder
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Old 09-08-2010, 09:36 AM   #5 (permalink)
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Quote:
Originally Posted by Weather Spotter View Post
Can you add your data to the Wiki? We are always looking for more data for the mods.
What sort of data do you accept ?
I don't do ABA-style or coastdown testing.

But with the grille block added I immediately saw improvements compared to my "known" FC on the level stretches of my normal commute.
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Old 09-08-2010, 09:43 AM   #6 (permalink)
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Very interesting. That is a small grill block though, I wouldn't expect too much from it.

It makes me wonder what mine is really worth, its a little bigger.

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Old 09-08-2010, 11:25 AM   #7 (permalink)
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Quote:
Originally Posted by euromodder View Post
What sort of data do you accept ?
I don't do ABA-style or coastdown testing.

But with the grille block added I immediately saw improvements compared to my "known" FC on the level stretches of my normal commute.
Both of those are best, but we will take your type as well. Just note the method you used to acquire the data.'

Example:

2% gain (1.2MPG). data gotten from differences in SG read out in known steady state locations and is consistent over time.
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Old 09-08-2010, 11:27 AM   #8 (permalink)
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Doax: any ABA testing? yours should show up nicely in testing And give some nice data for the wiki
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Old 05-30-2011, 03:19 PM   #9 (permalink)
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Have you tried making a lower grill block? My girlfriend drives your same car and I was looking at making a grill block for her car. I was going to start with the lower grill and see how that worked out. I like the look of yours.

Do you have pictures of how you mounted it to the grill?

I have 2 sheets of black coraplast so I will not have to paint mine.

And with the grill block how did you temps change? Have you drove it in hot weather to see temps as well?
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Old 10-13-2011, 12:35 AM   #10 (permalink)
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Sorry for the insanely long delay in response...I haven't been eco modding for the past 6 months and as such I haven't logged onto this site. Now that I am in an aerodynamics class I think it would be fun to apply some of the in class knowledge to the real world!

Anyways in answer to your question, I blocked the lower grill with a piece of foam so that it was flush (just over sized it slightly and pressed it into place.) It worked quite well in conjunction with the upper grill in temps less than 30F after that the lower block needed removal and after 40F I removed both (temps were hitting 212F after 15-18miles of expressway, at lower ambient temp it stayed steady at 203F)

Have you done any other mods? I'm thinking about making a front air dam and possibly a removable boat tail...thoughts?

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