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Old 07-21-2011, 08:46 PM   #61 (permalink)
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A speed sensitive grille block is a great idea for areas where the climate is rather warm year-round. I want to retain heat as much as possible during the engine warmup in the colder months.
I could change up my desing to semi-automatic which would be speed sensitive with an manual close overide.

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Old 07-22-2011, 06:20 AM   #62 (permalink)
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Comparison between the previous lower grille block and the new design.
How do you plan to keep the new design in place ?
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Old 07-22-2011, 12:05 PM   #63 (permalink)
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The lower part of your radiator is quite plugged! Since that is the most important part now that the upper grill is blocked. A clean radiator is a happy radiator.
Hehe. The fins are all bent on the lower part of the radiator. Cooling seems normal despite that though ! I wonder if it could be better..

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How do you plan to keep the new design in place ?
Good question.. I have no clue at the moment. Looking for something that would make it easily detachable/attachable.
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Old 07-22-2011, 01:08 PM   #64 (permalink)
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Good question.. I have no clue at the moment. Looking for something that would make it easily detachable/attachable.
You could mount a threaded insert on the underside of the bumper, drill a hole through the foam alaigned to the insert, and run a long bolt, up from the bottom. a 5/16" button head cap screw can be had in very long lengths and has a very minimalist head. You could even get one in nylon which myght wrok well in this case. You would want to install some type of sleve in the hole through the foam to maintain accurate alignment. That would be the cleanest way I can think of.

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Old 07-29-2011, 09:52 PM   #65 (permalink)
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I have also built a new version of the upper grille block using the same technique and 2-part polyurethane foam. Here are some pics.










Is anyone familiar in working with fibreglass ? I want the upper and lower grille blocks to be sturdy before proceeding with the finishing touches.

Basically, from what I gathered so far, it is safe for me to used epoxy or polyester resin on the 2-part polyurethane foam; it won't melt it.

Any help would be greatly appreciated !

Last edited by CigaR007; 07-29-2011 at 10:00 PM..
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Old 07-29-2011, 10:36 PM   #66 (permalink)
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...lends a 'new' perspective to the old phrase: "...foaming at the mouth (grill)..."
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Old 07-30-2011, 04:03 AM   #67 (permalink)
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I have also built a new version of the upper grille block using the same technique and 2-part polyurethane foam. Here are some pics.










Is anyone familiar in working with fibreglass ? I want the upper and lower grille blocks to be sturdy before proceeding with the finishing touches.

Basically, from what I gathered so far, it is safe for me to used epoxy or polyester resin on the 2-part polyurethane foam; it won't melt it.

Any help would be greatly appreciated !
Use polyester resin--cheaper and works fine, esp. for non-structural part.
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Old 07-30-2011, 02:56 PM   #68 (permalink)
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How do you plan to keep the new design in place ?
I was thinking about using magnets. Simple, small and good holding power.
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Old 08-08-2011, 08:37 PM   #69 (permalink)
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Those two pics are what the new upper grille block looks on the car. It has one layer of epoxy resin and a first treatment of bondo to fill larger holes and dents from the 2-part foam.






Second epoxy resin layer



Filler Primer to seal the remaining holes and dents





I was wrong ! Live and learn...



Time to sand that primer and fill the gaps.





After lots lots lots of sanding, it was time for the primer...AGAIN !





Next step is to find colour-coded paint 6R4 (green mica) to finish it off.

Stay tuned for the final result in the coming days.
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Old 08-09-2011, 08:49 AM   #70 (permalink)
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Those two pics are what the new upper grille block looks on the car. It has one layer of epoxy resin and a first treatment of bondo to fill larger holes and dents from the 2-part foam.


Kudos, man. This is turning into a really nice piece. I love the work that shows real body materials skill and flare for the design of the stuff. Making the car look good is part of winning the respect of people for your project. Any interest in making a mold of this part before final install? I would bet you could actually sell the part online (not for much profit, though) or to other ecomodders with your car.

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aero mod, grille block, toyota echo





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