Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Grill block with Bullbar, do just the grill or incorporate the Bullbar

Tesla · 02-11-2012, 08:20 AM

I did the grille block the other day, and engine temps look good, but I was starting to have a bit of a rethink.
I have a bull bar infront of the grille, it is a 3 hoop bar, the centre hoop is 3" diameter and inclines back about 15 degrees and the side bars are 2" diameter. The centre section faces forward and the two sides are angled to the edges about 30 degrees.
I was thinking about the effects of the bars up front on the airflow, so was wondering whether it would be of benefit to incorporate them into the whole grill block thing, I could use clear polycarb at the front & sides, just like big headlight protectors and cover the top with a flexable membrane of some type, like a sporty bonnet protector.
Inclined just slightly above horizontal it would go 1/4 of the way up the bonnet, This would give a much cleaner flow up the bonnet and to the windscreen.
Is it a better idea, or just leave the grille block as is with bullbar exposed?

02-11-2012, 08:20 AM	#1 (permalink)
Tesla Master EcoModder Join Date: Feb 2012 Location: Australia Posts: 355 The Truck - '02 Nissan GU Patrol ST Thanks: 5 Thanked 76 Times in 50 Posts	Grill block with Bullbar, do just the grill or incorporate the Bullbar I did the grille block the other day, and engine temps look good, but I was starting to have a bit of a rethink. I have a bull bar infront of the grille, it is a 3 hoop bar, the centre hoop is 3" diameter and inclines back about 15 degrees and the side bars are 2" diameter. The centre section faces forward and the two sides are angled to the edges about 30 degrees. I was thinking about the effects of the bars up front on the airflow, so was wondering whether it would be of benefit to incorporate them into the whole grill block thing, I could use clear polycarb at the front & sides, just like big headlight protectors and cover the top with a flexable membrane of some type, like a sporty bonnet protector. Inclined just slightly above horizontal it would go 1/4 of the way up the bonnet, This would give a much cleaner flow up the bonnet and to the windscreen. Is it a better idea, or just leave the grille block as is with bullbar exposed?