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Old 07-20-2019, 11:12 PM   #31 (permalink)
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So panel gaps are far from the biggest aerodynamic problem with this 4Runner right now, but because I had to remove the front grill to access a leaky o-ring on the AC accumulator drier I decided to seize the opportunity and fill the panel gaps on the front end. I used a trim-lok edge trim with side weatherstrip profile between the bumper and the grill / filler panels and trim lock self-adhesive with the 3M adhesive around the headlight and the hood gaps. Used some thin pieces of door edge guard around the marker light to seal that up as well. Turned out pretty good I think.

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The Following 4 Users Say Thank You to aardvarcus For This Useful Post:
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Old 07-21-2019, 12:54 AM   #32 (permalink)
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Looking good! I prob need to do the same on my car, does it help much?
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Old 08-21-2019, 09:31 AM   #33 (permalink)
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Join Date: Apr 2012
Location: Evensville, TN
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Deep Blue - '94 GMC Suburban K2500 SLE
90 day: 23.75 mpg (US)

Griffin (T4R) - '99 Toyota 4Runner SR5
90 day: 24.95 mpg (US)
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Haven't had a great chance to test the panel gaps, shortly after I filled them I tore all the suspension off the 4Runner to update it. Just completed that work and dropped it off for an alignment. 4Runner got new front wheel bearings, Bilstein 5100 struts, all bushings replaced, lower control arm, alignment keys, upper and lower ball joints, rebooted CV axles, upgraded sway bar, Etc. In the back it got new control arm bushings for the four link, Springs, , upgraded sway bar, Etc.

I think one of the culprits for strange MPG was one of the cylinders on the passenger side caliper locked up. I got it unstuck enough to get it in for the alignment, I've got new rotors calipers Etc on order to refresh the front brakes.

All of that work made the aerodynamics work take a backseat temporarily.

Broke out the 40 ton homemade press brake last night, started messing around with some aluminum for the underbody skid plates / belly pan.

I also started welding together some homemade Rock sliders for the side rails, they will go out to exactly the tire width and will hold the tire spats behind the front tire and in front of the rear tires.

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